I have started to accumulate images of the Moon taken with a Canon 1100D DSLR camera and my Ritchey-Chrétien telescope. Generally this enables me to obtain a high-resolution image without the need to make a mosaic. (I say generally because, when the Moon is nearly full, its image is a little too large to fit on the sensor in the camera, so I have to construct a two-frame mosaic.) By using this camera without a lens to photograph a flat light source, I was able to measure the response curve of the camera. From this I determined that a fully-exposed picture needed its gamma reduced to about 0.6 to obtain a linear response. However I have been experimenting with different exposure conditions and this is reflected in the details below. For example, an under-exposed picture produces a more linear response but needs the histogram of the picture to be stretched to produce the final picture. In some cases I have used a mixture of these techniques. Also in an attempt to obtain this set as quickly as possible, some of the pictures were taken through cloud or other unfavourable conditions. Hence the duplicates.
Because the pictures are very large (almost 3000 pixels square), I think the best way to present them is simply as an image, not as part of an html page. This means that your browser will (in my experience anyway) reduce it to fit your screen but clicking on that image will display the full size. This means that I cannot display the photographic data with the picture, so that is given in detail here. The pictures are also linked to the corresponding page in my Moon Phases collection, where a limited amount of information is given.
Currently the thumbnails below are in the order I took them (left to right, top to bottom). One day, maybe, I will put them in day order....
|
|
Day: 7.0
Date & Time: 3rd December 2019, 19:21 UT
Libration: latitude 6° 22', longitude 1° 39'
Lunar Phase: 95.0°
Colongitude: 352.8°
Capture: 10 frames, 1/200 sec, ISO 400
Processing:
Registax. 10 frames stacked. Wavelets 1-2 = 10.
gamma 0.6. Focus Magic 7,
|
|
|
Day: 14.5 Full Moon
Date & Time: 11th December 2019, 22:15 UT
Libration: latitude 3° 10', longitude -4° 34'
Lunar Phase: 3.7°
Colongitude: 91.1°
Capture: 2-frame mosaic. Each of 10 frames, 1/200 sec, ISO 200
Processing: Registax. 10 frames stacked. Wavelets 1-2 = 10.
Focus Magic 7, gamma 0.6
|
|
|
Day: 20.8
Date & Time: 17th December 2019, 23:55 UT
Libration: latitude -5° 31', longitude -0° 13'
Lunar Phase: 286.3°
Colongitude: 164.8°
Capture: 10 frames, 1/80 sec, ISO 400
Processing: Irfanview. Convert .CR2 files to png format.
Registax. 10 frames stacked. Wavelets 1-2 = 10.
Focus Magic 5, gamma 0.4
|
|
|
Day: 9.6
Date & Time: 5th January 2020, 18:30 UT
Libration: latitude 6° 25', longitude -4° 25'
Lunar Phase: 62.5°
Colongitude: 32.2°
Capture: 10 frames, ISO 400, exposures 1/125 to 1/1000 sec
Processing: Registax. 10 frames stacked. Wavelets 1-2 = 10.
Focus Magic 5, gamma 0.6, Focus Magic 3 at 50%
|
|
|
Day: 10.7
Date & Time: 6th January 2020, 18:45 UT
Libration: latitude 5° 14', longitude -5° 13'
Lunar Phase: 49.9°
Colongitude: 45.5°
Capture: 10 frames, ISO 400, exposures 1/160 to 1/1250 sec
Processing: Registax. 10 frames stacked.
Wavelets 1-2 = 10, gamma 0.6.
Focus Magic 5
|
|
|
Day: 17.0
Date & Time: 12th January 2020, 20:52 UT
Libration: latitude -4° 1', longitude -1° 25'
Lunar Phase: 332.6°
Colongitude: 119.6°
Capture: 10 frames, 1/640 sec, ISO 400
Processing: Registax. 10 frames stacked. Wavelets 1-2 = 10,
gamma 0.6
|
|
|
Day: 22.9
Date & Time: 18th January 2020, 05:48 UT
Libration: latitude -5° 11', longitude 4° 38'
Lunar Phase: 261.2°
Colongitude: 184.6°
Capture: 10 frames, ISO 400, exposures 1/80 sec
Processing: Registax. 10 frames stacked.
Wavelets 1-2 = 10, gamma 0.6
Focus Magic 90,20 (drift compensation,
angle, pixels),
| |
|
Day: 23.9
Date & Time: 19th January 2020, 05:04 UT
Libration: latitude -4° 18', longitude 5° 23'
Lunar Phase: 248.8°
Colongitude: 196.3°
Capture: 10 frames, 1/100 sec, ISO 800
Processing: Registax. 10 frames stacked. Wavelets 1-2 = 10,
gamma 0.6. Focus Magic 7
|
|
Day: 27.0 Image ×0.5
Date & Time: 22th January 2020, 07:22 UT
Libration: latitude 0° 4', longitude 5° 33'
Lunar Phase: 210.6°
Colongitude: 234.2°
Capture: 14 frames, 1/80 sec, ISO 3200
Processing: Registax. 14 frames stacked.
Wavelets 2-3 = 20, gamma 0.6.
Colour balance and alignment (manually)
|
|
|
Day: 9.0
Date & Time: 3rd February 2020, 19:01 UT
Libration: latitude 4° 16', longitude -6° 36'
Lunar Phase: 70.4°
Colongitude: 26.1°
Capture: 11 frames, 1/125 sec, ISO 400
Processing:
Registax. 10 frames stacked. Wavelets 1-2 = 10, gamma 0.6.
Focus Magic 4
|
|
Day: 10.0
Date & Time: 4th February 2020, 19:08 UT
Libration: latitude 2° 55', longitude -6° 49'
Lunar Phase: 58.5°
Colongitude: 38.4°
Capture: 10 f rames, 1/320 sec, ISO 400
Processing:
Registax. 10 frames stacked. Gamma 0.6,
wavelets 1-2 = 10. Focus Magic 7.
|
|
|
Day: 11.1
Date & Time: 5th February 2020, 21:38 UT
Libration: latitude 1° 13', longitude -6° 57'
Lunar Phase: 44.9°
Colongitude: 52.0°
Capture: 10 frames, 1/125 sec to 1/800 sec, ISO 400
Processing:
Registax. 10 frames stacked. Gamma 0.6,
wavelets 1-2 = 10. Focus Magic 5
|
|
Day: 12.0
Date & Time: 6th February 2020, 19:04 UT
Libration: latitude -0° 13', longitude -5° 59'
Lunar Phase: 33.6°
Colongitude: 62.9°
Capture: 10 f rames, 1/500 sec, ISO 400
Processing:
Registax. 10 frames stacked. Gamma 0.6,
wavelets 1-2 = 10. Focus Magic 5.
|
|
|
Day: 16.6
Date & Time: 10th February 2020, 22:39 UT
Libration: latitude -5° 40', longitude 0° 15'
Lunar Phase: 337.4°
Colongitude: 113.1°
Capture: 2-frame mosaic, each of 10 frames, 1/320 sec,
ISO 400
Processing:
Registax. 10 frames stacked. Gamma 0.6,
wavelets 1-2 = 10.
Slight increase in contrast and brightness.
Focus Magic 7
|
|
Day: 18.1
Date & Time: 12th February 2020, 04:50 UT
Libration: latitude -5° 50', longitude 1° 55'
Lunar Phase: 319.9°
Colongitude: 128.3°
Capture: 10 frames, 1/1250 sec, ISO 400
Processing:
Registax. 10 frames stacked. Gamma 0.9,
histogram 0-160, wavelets 1-2 = 10.
|
|
|
Day: 2.8
Date & Time: 26th February 2020, 18:13 UT
Libration: latitude 7° 3', longitude -2° 18'
Lunar Phase: 145.9°
Colongitude: 305.8°
Capture: 10 frames, 1/100 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-165,
wavelets 1-2 = 10. Focus Magic 4
|
|
Day: 3.7
Date & Time: 27th February 2020, 18:55 UT
Libration: latitude 6° 46', longitude -3° 36'
Lunar Phase: 134.8°
Colongitude: 318.1°
Capture: 10 frames, 1/50 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-220,
wavelets 1-2 = 10. Focus Magic 6
|
|
|
Day: 6.4
Date & Time: 1st March 2020, 19:16 UT
Libration: latitude 4° 22', longitude -6° 49'
Lunar Phase: 101.7°
Colongitude: 354.7°
Capture: 10 frames, 1/800 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-150,
wavelets 1-2 = 10. Focus Magic 4
Contrast and brightness increased 20%.
|
|
Day: 7.4
Date & Time: 2nd March 2020, 20:51 UT
Libration: latitude 3° 3', longitude -7° 43'
Lunar Phase: 89.6°
Colongitude: 7.7°
Capture: 10 frames, 1/800 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-175,
wavelets 1-2 = 10. Focus Magic 4
|
|
|
Day: 8.3
Date & Time: 3rd March 2020, 20.04 UT
Libration: latitude 1° 40', longitude -7° 55'
Lunar Phase: 78.1°
Colongitude: 19.6°
Capture: 10 frames, 1/1000 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-175,
wavelets 1-2 = 10. Focus Magic 5.
|
|
Day: 9.4
Date & Time: 4th March 2020, 21:42 UT
Libration: latitude 0° 5', longitude -8° 3'
Lunar Phase: 65.1°
Colongitude: 32.8°
Capture: 10 frames, 1/1250 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-185,
wavelets 1-2 = 10. Focus Magic 5
|
|
|
Day: 10.5
Date & Time: 5th March 2020, 22.22 UT
Libration: latitude -1° 29', longitude -7° 31'
Lunar Phase: 51.1°
Colongitude: 45.5°
Capture: 10 frames, 1/1250 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-195,
wavelets 1-2 = 10. Focus Magic 5.
|
|
Day: 11.5
Date & Time: 6th March 2020, 20:43 UT
Libration: latitude -2° 56', longitude -6° 15'
Lunar Phase: 39.6°
Colongitude: 56.9°
Capture: 10 frames, 1/1600 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-150,
wavelets 1-2 = 10. Focus Magic 4
|
|
|
Day: 12.5
Date & Time: 7th March 2020, 19.16 UT
Libration: latitude -4° 12', longitude -4° 35'
Lunar Phase: 26.9°
Colongitude: 68.3°
Capture: 10 frames, 1/1000 sec, ISO 400
Processing:
Registax. 2-frame mosaic. 10 frames stacked,
histogram 0-150 for each part.
wavelets 1-2 = 10. Focus Magic 7
|
|
Day: 13.7
Date & Time: 8th March 2020, 19:25 UT
Libration: latitude -5° 14', longitude -2° 39'
Lunar Phase: 12.9°
Colongitude: 80.5°
Capture: 10 frames, 1/250 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-200,
wavelets 1-2 = 10, gamma 0.7. Focus Magic 5
|
|
|
Day: 17.6
Date & Time: 12th March 2020, 03.57 UT
Libration: latitude -5° 12', longitude -3° 42'
Lunar Phase: 325.6°
Colongitude: 120.7°
Capture: 10 frames, 1/1600 sec, ISO 400
Processing:
Registax. 10 frames stacked, histogram 0-130.
wavelets 1-2 = 10. Focus Magic 5
|
|
Day: 5.0
Date & Time: 29th March 2020, 21:22 UT
Libration: latitude 3° 9', longitude -7° 5'
Lunar Phase: 119.6°
Colongitude: 336.8°
Capture: 10 frames, 1/250 sec, ISO 400
Processing:
Registax. 10 frames stacked. Histogram 0-160,
wavelets 1-2 = 10. Focus Magic 7
|
|
|
|
