Solar Images
There are many Hydrogen-alpha images on ths page showing surface detail and prominences. But for a very quick visit here are a couple of particular interest. A Coronal Mass Ejection (CME) on 2nd March 2015, and a very large prominence on 23rd April 2015. I had a bit of fun with that one!
Astronomy doesn't only have to take place at night! After all, the nearest star to us is our own Sun. But a safe Solar Filter is an absolute must. See the description of the Baader Solar Film filter. 2000 is a good year for Sunspots! The faint circles on the sunspot closeups in the right hand group are simply shadows of dust particles, probably on the CCD chip.
On 26th. June a quick look with the 80WA showed numerous sunspots, including an attractive triangle of large spots, so out with the C8. Unfortunately it clouded over before I got the final group, but I imaged it the following morning (further onto the disc). Incidentally, any of the three large spots would swallow the Earth with plenty of room to spare!
After an interminable period of cloud and rain, the weather relented on 16th. July, and I obtained these images. A very messy Sun!
The third and fourth weeks of September 2000 saw the largest Sun Spot group for many years (Active Region 9169). The weather was variable, with some cloudy days, but I was able to image it on three seperate occasions. The first on September 21st. 2000 and last on the 27th. were taken hurriedly in the morning, and the telescope was not fully temperature stabilised on both occasions. But the middle set was taken at the Loughton Astronomical Society Star Party at Thetford, Norfolk, on September 23rd. and the 'scope was nicely settled down. Although there was a breeze, the atmosphere was quite stable, and crisp images were possible. The group was at its best then, and was breaking up by the 27th.
September 21st., Boldon, Tyne & Wear, 1030 UST |
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September 23rd., Thetford, Norfolk, 1245 UST
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September 27th., Boldon, Tyne & Wear, 0845 UST |
Here is an impressive group captured on 30th. March 2001, using my Olympus 2100UZ Digital Camera afocal with 40 mm eyepiece on my Meade LX90. Spots at maximum optical zoom (x10). Thin cloud arrived while I was photographing the full disc. |
June 2001 saw my trip to Zambia for the Total Eclipse on 21st. Full details and travelogue on my Solar Eclipse page. But here are a couple of tasters. This is the view at totality.
During my trip a fellow camper (not of our party) allowed me to use his Coronado Solarscope, and I was able to take a photograph through it, showing prominences and surface markings. |
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During mid August 2002 although solar maximum was supposedly past, a huge spot, the largest on record for many years, traversed the Sun. 3 days in the life, and the immensity of the spot can be gauged from the scale overlay of Jupiter in the middle image. Unfortunately seeing conditions were poor on all three days with a mixture of broken thin cloud and upper atmosphere turbulence. Solar discs with the Olympus 2100 afocal with 40 mm eyepiece, close ups Vesta Pro at prime focus of LX90 |
On the 11th. September 2002 - the anniversary of the tragic events in New York - a large group again rotated into view. Almost certainly a development of the above. With my newly acquired Infrared blocking filter, I consider the detail to be much improved. Or it might just have been better seeing! This activity may also have triggered the Aurora of 7th.September - here on the Olympus page. Disc with Olympus 2100 afocal with 40 mm eyepiece, close up mosaic of two frames with Vesta Pro at prime focus of LX90 |
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Dawn on 31st. May featured an Annular Eclipse of the Sun, partial throughout most of the British Isles, but with a full annulus visible from sites in the North of Scotland. British weather being what it is, I decided not to travel North, but simply take the 5 mile trip to the North Sea coast and watch it from a local headland (Souter Point Lighthouse, South Shields), along with three other members of the South Shields Astronomical Society. Although haze on the horizon unfortunately masked the maximum obstruction which would have shown a pair of 'horns' rising from the sea, ten minutes after maximum the sun became visible through the haze, and we were rewarded with a view of the entire remainder of the eclipse. |
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The haze cut down the sun's light to a level which was safe to observe without filters for most of the eclipse, even through the LX90, and superb views of the deep red eclipsed sun were seen. I took several photographs, the best shown here. The closeups were afocal through the telescope with a 40 mm eyepiece, the long shot direct, zoomed to 100 mm. |
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The uncoloured image is a single frame from an AVI (DivX codec) showing the final phase of the eclipse, filtered with Baader Solar film. This was taken using the Vesta Pro Webcam with a 135 mm lens. Click on the image to view the (32 KB) AVI. Depending on the configuration of your browser you may need to download the AVI first. |
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Digital Magic! When I was in Africa in 2001 for the Solar Eclipse, I was able to take a Hydrogen Alpha image of the Sun through a Coronado telescope belonging to a fellow camper. See Eureka Page. It showed prominences, although I was rather disappointed by the lack of surface detail. But now, on applying the techniques suggested by James Weightman in the July 2004 Sky and Telescope magazine, all is revealed! There is some vignetting from the lens system, barely noticeable in the original brighter image, but the majority of the frame is acceptable, and shows much more of the surface structure than was at first apparent. For anyone who has read the article, the Green channel was the one to use in this case.
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In June 2005 I bought new a Solarview50 Hydrogen Alpha telescope to replace my (secondhand) Helios 1. I've been rather remiss in posting images, but here is a selection from late 2005. Firstly a montage from 13th. August 2005. |
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Here is a superb prominence from 25th. September 2005. I just happened to take a look in the late afternoon, and was extremely lucky to capture this. This and all following images were taken using my Artemis285 CCD camera, some of the prominence and spot details with a 2x Barlow as well. |
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Although the Sun at this time is in a period of minimum activity, nevertheless on 12th. November 2005 there were some nice prominences visible, and the one to the lower left of this image was associated with an active Sunspot area which appeared over the next few days. For once I was favoured with a run of fine days, and was able to capture a succession of images showing the progress of the spot across the Sun's disc. |
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Here are the Disc and Spot on 15th. November 2005 |
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The Spot on 16th. November - I didn't have time to get the Disc. |
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17th. November |
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18th. November It gives one pause for thought when realising that the major spot would easily swallow the Earth, and the distance between the major and minor spot is 2/3 the distance between the Earth and the Moon.
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19th. November
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The clouds returned, so no more of that sequence. But here is an interesting prominence from 12th. December 2005.
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Here's an interesting prominence from 23rd. April 2006. Artemis camera and Solarview 50. Disc at prime focus, prominence detail with 2x Barlow. |
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An interesting Sunspot crossed in early February 2007, and I was able to capture it on 2nd. Artemis 285 and Solarscope 50. |
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With the Solar minimum dragging on, no worthwhile H-alpha images have been obtained for some time. But during a few days' stay at Kielder in April 2008, although the latter part of the stay was predominantly cloudy, Wednesday (9th) was a reasonably sunny day with many breaks in the clouds. And the upper atmosphere was cold enough to produce ice crystals in the upper atmosphere and grant us a Solar Halo. When a cloud covered the Sun, there was enough contrast to photograph the phenomenon directly. As for the Lunar Halo photographed a few weeks earlier, the circle is always 44 degrees in diameter. Larger image |
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During a trip to Les Granges in 2009 I took my Solarview 50 and QHY5 guide camera - it has a good size chip for use with that telescope. Although only 8-bit, I was able to capture this image on 23rd September. |
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At the end of June 2010, finally our long awaited extended holiday began, and after some interesting stops in America we arrived in French Polynesia for the July 11th Total Solar Eclipse. Although staying on Tahiti and the adjoining Moorea, to view the eclipse we flew to Tatakoto Atoll which was situated very close to the centre line. This was the diamond ring at second contact, with some Baily's beads evident along with prominences. All these Solar images were taken using my Canon 350D camera and Canon 400 mm f5.6 L lens, and ISO 100. This single frame 1/1000 second. Full size. |
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We witnessed 4 1/2 minutes of totality, but as always the time flew past. Nevertheless I was able to view the event while taking a range of photos. This is a composite of several frames between 1/1000 and 1 second. Despite the thin haze, I also succeeded in capturing Earthshine, and several stars, the brightest being magnitude 3.5 Delta Geminorum (above the disc). This image appeared in the December 2010 issue of Sky at Night magazine |
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All too soon came third contact with again a nice diamond ring and prominences. We were very fortunate with the weather - clouds before and after, indeed totally obscured 10 minutes later. Phew! |
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As well as taking close ups I managed a wide angle shot with my Panasonic TZ5 on a lightweight tripod. The Sun was washed out, but my wife fortunately took a photo with her Canon Ixus 40 at a shorter exposure nicely showing the 'black dot', so this is again a composite. Note Mercury lower right of the Sun. This and the above two pictures featured in the August BBC 'Sky at Night' programme with Sir Patrick Moore, and this photo appeared in the September 2010 issue of Astronomy Now. |
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Several attractive prominences and some active areas with small spots on 2nd September 2012. Artemis 285 with Solarscope 50 |
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On 2nd March 2015 I was doing some tests with the forthcoming partial eclipse in mind, and spotted this substantial detached prominence. Rather faint, hence the stretched background. But interesting! It would seem that I caught the start of a major Coronal Mass Ejection. I took my image around 1430 UT, the 'official' image was an hour later. The link referred to in that image is not active on my site, but this YouTube offering shows the progress of the CME very well, although I do not know how long it will be available. It opens in a new window - YouTube does not like frames! Artemis 285 on Solarview50. Combination of 20 x 0.01 second exposures, processed in K3CCDTools and Photoshop. |
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On 20th March 2015 there was a Total Solar eclipse in the North Atlantic. Unfortunately the line of totality did not pass over the UK, but from my Northumberland location the Sun was 92% eclipsed - a substantial partial eclipse. But as usual the fickle UK weather did not play fair! Maximum eclipse occurred shortly after 10.30 am. The previous day had been beautifully clear all morning, alas this was not the case on eclipse day with substantial cloud cover. Nevertheless I was all set with both white light and Hydrogen-alpha filters set up in my Observatory. First contact was completely obscured, but eventually the clouds started to thin and not only was it safe to view direct, I was able to take unfiltered photographs with my Panasonic TZ5 compact camera at full zoom, this was one of the better ones. |
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As time passed, the clouds thinned further and eventually I was able to start taking images with the filtered cameras. These 'white light' images were taken using Baader Solar film and my Canon 700D on my Meade 127 refractor (950 mm focal length). Maximum eclipse and nearing the end of the eclipse. There is an MP4 video here showing the sequence of all the useable frames. |
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I also had my Artemis 285 camera fitted to my Solarview50 Hydrogen-alpha telescope, again these are maximum and near the end. There were some interesting prominences and filaments. Also an MP4 video here. |
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The Sun has had a relatively quiet cycle this time round, but on 23rd. April 2015 it sported a huge prominence which I was able to capture. Artemis 285 on Solarview50 Hydrogen-alpha telescope. Interestingly when I came to process the images I noticed I had another folder labelled April 23rd. BUT it was from 2006, when again there was an enormous prominence!! Quite a coincidence!! It can be found here. |
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A flight of fancy! I see a strange caterpillar like creature crawling around the rim of the Sun to reach its offspring which is looking eagerly towards its parent ;-) |
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A few days later (27th April) the prominence had rotated onto the face of the Sun, with only a faint tail of the filament showing as a prominence - only just visible in this image, I was fighting clouds! |
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In early March 2016 we went on a trip to Indonesia - an organised tour which visited several places of interest including a *very* hot climb part way up Anak Krakatau! Hopefully I will get round to doing a travelogue. But the primary purpose of the holiday was to view the Solar Eclipse on 9th March. We were located in the courtyard of the Sultan's Palace, Ternate, a good open location with plenty of atmosphere - locals etc. At first contact the sky was beautifully clear, but there was a worrying patch of high cloud to the East. Unfortunately it moved across the Sun after about 30 minutes, and remained until 10 minutes after totality. It wasn't so thick as to block the Sun out altogether, but the outer corona was completely obscured. So my planned exposure sequence was out the window, and I just had to play seat of the pants as the cloud thickness varied, using live view on my Canon 700D. Despite taking some longer exposures (around 1.5 seconds), the cloud ruined them, and my best effort was this one. 0.3 seconds, 400L Canon lens externally stopped to f7, ISO 100. Just before third contact, a nice view of the large prominence and the start of Baily's beads at the top of the image. Cropped from the full frame. Full Size. This image appeared in the Eclipse feature in May 2016 Astronomy Now magazine |
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One of the group (the leader, Prof. Patricia Reiff) had a fish eye lens on a camera and took this image during totality. Venus is clearly visible, but it is also apparent just how much cloud was obscuring the corona. |
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As I mention above, we climbed part of the way up Anak Krakatau - 'The Child of Krakatoa' which lies in the Sunda Strait midway between Java and Sumatra. You can see the path in this photo, it took us up around 400 feet of the 1000 foot volcano. Larger image |
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It was extremely hot, not just from the sun but from the volcanic heat underfoot. I just made it - I was suffering from a tummy bug and became quickly dehydrated despite carrying water with me. Larger image |
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Because of my physical state I went down before the rest of the party, but after drinking more water and resting for a while was rewarded by the visit of a large (around 6 feet long) monitor lizard. Larger image |
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I've put this Krakatau section here for now because on 22nd December 2018 a large portion of the volcano slid into the sea, causing a tsunami which hit the coasts of Java and Sumatra without warning, causing the deaths of over 400 people with a further 40,000 displaced. This radar picture shows the huge amount lost - around 2/3rds of the mass and the height reduced from 340 metres to 110 metres. The remaining area includes the path we climbed and the forest below, all of which were inundated by the tsunami. So the monitor will have perished, and probably any other life on the rest of the Island which is still erupting ferociously as I write this (29th December). |
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These satellite photographs show the devastating change to the island. The main cone completely collapsed into the sea, and the rest of the island became a desert of mud and rock. |
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Transit of Mercury On 9th May 2016 there was a (relatively) rare transit of Mercury across the face of the Sun. Visible in its entirety from the UK. I set up two imaging systems on my Observatory mount, for white light my Canon 700D on Meade 127 refractor with Baader Solar film, for Hydrogen-alpha light my Artemis 285 on Solarscope50. Both set up with computer control to take an image every 5 minutes for the whole transit which lasted for just over 7 1/2 hours . Some problems unfortunately - exposure times for the Canon which were set too long at first - some unnoticed hazy cloud cleared after the initial set up, so early frames were over exposed. Then towards the end as the Sun lowered into horizon haze, the exposure times had to be increased again. More fortunate with the H-a, although the camera slipped at one point, rotating through 90 degrees, unnoticed for a while. Also unnoticed was a failure of the power supply to the Canon so 40 minutes were lost! Seeing was poor, so many frames were a bit fuzzy. But here is first contact with both cameras. Full size white light here. |
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As Mercury progressed, seeing continued to vary, but I have selected frames which are as good as they get. Full size white light here. |
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Unfortunately at the time of last contact, tree leaves and branches got in the way, and of course the low altitude did not help the seeing. But here is the result anyway! A couple of H-a images - the narrow wave band at the red end of the spectrum survives the thick atmosphere better. No full size for the white light, reddened and blurred by the low altitude (9.5 degrees).
I hope to produce a video of the full passage. probably in H-alpha, more interesting with the surface features. But correcting the rotation when the camera slipped will take a bit of doing, never mind processing and aligning each image. Watch this space! |
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I posted the above GPCAM2 Solar images on the UKAI group Solar section, and came across highly detailed images obtained using a Daystar Quark 'eyepiece' Hydrogen-alpha filter. This filter fits on a telescope like a standard eyepiece, so can benefit by the resolution of a refractor larger than most small Ha dedicated telescopes like my Solarview50 without breaking the Bank! The built in Barlow lens substantially increase the focal length of the system, so with the small chip of the GPCAM2 only small areas of the Sun can be captured at any one time, but the potential for fine detail is there given good seeing conditions. So I bought one from Altair Astro complete with 2" energy rejection filter and interference eliminator to remove 'Newton's Rings'. And fitted to my TMB105 refractor it works very well. Still learning and finding the correct settings, but here are a couple of images from 8th June 2016 when the Sun decided to show itself briefly after days of cloud. Early evening so a bit low in the sky and only moderate seeing, but shows what the system is capable of. Need a good active sunspot to really show it off! Both images are of course stacks of 100 or more monochrome sub frames selected from several hundred using Registax6. Further processed and coloured in Photoshop. |
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Spot 12579 followed the earlier groups and seemed to be developing, but as can be seen from these images taken on 23rd and 24th August 2016 it started to decay quite quickly. Unfortunately poor weather/lack of opportunity prevented further images and checking on the Kanzelhöhe Observatory web site a few days later showed the spots had disappeared altogether leaving only a slightly disturbed area.. Altair GPCAM2 mono on Quark and TMB 105 refractor. |
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21st August 2017 saw a Solar Eclipse pass across central USA. Although totality was relatively short, around 2 min 45 secs maximum duration near the town of Carbondale Illinois, it was dubbed 'The Great American Eclipse' and was probably seen by more people than ever before. I was fortunate in joining a group organised by Omega Holidays which decided to watch from a site 'Menan Buttes' near Idaho Falls. 2 mins 18 secs, but chosen for its good weather prospects. And did not disappoint! Wall to wall cloudless sky and at the altitude of around 5000 ft. above sea level a crisp clear view. Second contact produced a beautiful diamond ring with Baily's Beads and prominences nicely visible. Canon 700D with 400 mm Canon L lens externally stopped to f 7.1 (see this description) unfiltered at 1/2000 second. Full size. We were accompanied by Pete Lawrence, Dr. Paul Abel, and the impressionist Jon Culshaw who introduced excellent presentations by the other two and was extremely entertaining! |
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For totality I used a range of exposures from 1/400 to 2 seconds, and combined them in Photoshop to produce this image - a pretty close representation of what was visible through small binoculars. WARNING - it is safe to use unfiltered binoculars, but only during full totality. Even the diamond ring can cause serious eye damage when viewed through optical aids such as binoculars or a telescope. Larger image - approximately half size. There are several stars visible - star identification in this larger image. This image was Picture of the Month in the October 2017 issue and also appeared in the January 2024 issue of Astronomy Now |
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Here is fourth contact diamond ring, again clearly showing Baily's Beads and prominences. Full size. |
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There were several small sunspots visible. Taken with a Solar filter of course (Baader film). Larger image |
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The sky was beautifully clear for the whole eclipse, so here is an animated GIF of the entire sequence. Click on the thumbnail for a medium size GIF (755KB) or here for a larger one (4.48MB) |
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Earthshine, often seen when the Moon is recently new, is caused by light from an illuminated Earth lighting the dark part of the Moon as viewed from Earth - the equivalent of Moonlight. It was just visible in my 2 second exposure, so I have patched it into the composite here. Larger size. It is very unusual for a particular location to benefit from totality within a few years. But in April 2024 Carbondale Illinois is even closer to the centreline than on this occasion, and will experience over 4 minutes of totality - lucky them! I may go to that one, but will be approaching 81 years of age - maybe too decrepit or even gone by then! Time will tell.... |
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Now August 2019 and no Solar images for two years. Why?? Well, the Sun has been unusually quiet for the last two years, with only an occasional very small sunspot. It is experiencing a deep Solar minimum. But hopefully will spring back to life soon. Watch this space!
On 11th November 2019 there was a transit of Mercury across the face of the Sun. due to start at 1235, but the Sun would set well before the end of the transit. Nevertheless I hoped to catch as much as possible. Unfortunately the weather was not kind here in Northumberland, particularly at the start of this unusual event, but I managed to capture it just after the start. Mercury is the tiny black dot at around 8.30-o-clock right at the edge of the Sun's disc. An hour or so later the skies cleared nicely for a short while and I was able to get a better full disc image with Mercury about a 1/4 of the way across, just below the centreline. Then the rain arrived, and I never got another clear image. But better than nothing, since there isn't another transit until November 2032, and that will have already started before Sunrise. Full size start here, later here. Taken using an Altair GPCAM3 128M on Solarview50 H-alpha telescope. I bought this camera to replace the GPCAM2 which didn't quite cover the disc of the Sun, also the new camera has smaller pixels, so hopefully better definition - no Barlow needed for prominences and sunspots. I'd hope to get a whole sequence until the Sun was almost set, but not to be. A tiny hint of a prominence at 9-0-clock on the later image, but that's all - the Sun is in a very quiet mood at the moment! |
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Towards the end of January 2021 I had an accident with my Solarview50 Ha telescope which detached the etalon thereby needing repair in the Isle of Man. They had an awful time fixing it - the etalon plates just would not go back together. Until they tried replacement spacers - most unusual for them to be damaged, and then the magic happened. I got the 'scope back on 8th June, just in time for the partial eclipse on 10th, (guaranteeing full cloud cover!), but no decent clear spells. 9th June a bit better, and some definite action so I decided to go for an image with my GPCAM3. And when I stretched things, I found what might be a coronal mass ejection, certainly clouds of gas thrown a huge distance from Sunspot AR2831 - the furthest section is probably at least 200,000 miles out. Lucky strike! NASA Solar Observatory image here. As you can see that was captured at 12.08 UT, my image was at 12.16 UT. Slight haze so only the brightest parts captured. Full size |
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On 10th June 2021 there was a partial Solar Eclipse in the UK (part of an Annular Eclipse over the Arctic). Like many others in the UK I was clouded out for much of the time. But managed a bit of Hydrogen-Alpha as well as white light. so here are a couple of the former, one combined with a longer exposure to capture prominences. Solarview 50 with GPCAM3 178M. The upper image, shortly after first contact, was timed at 0910 UT, larger image here.
The lower at 1117 UT, larger image here. Nothing particular in the few white light images, so not presented.
It was cloudy for the maximum eclipse, but also like others I was able to use a consumer camera - TZ70 on full 30x optical zoom to get a shot or two through the clouds. Cropped from the original. |
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Alas my beloved Solarview 50 is back in the Isle of Man while Helmut wrestles with getting it set up at its best after it was damaged several months ago. But now that the Sun has started to wake up after the long minimum this show on 17th December 2021 was too good to miss. So on with a white light filter on my TS65 Quad and an avi (used 30 frames of 74) with my GPCAM3 mono. It was just after noon, so the Sun was almost at its highest, but still very low at less than 12 degrees altitude. And in thin haze. But worth a go and a bit of tweaking in software got this result. Full Size. |
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