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Galaxy
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| Object : | M65, M66 and NGC 3628, part of Leo Triplet |
| Coordinates/Direction : | RA: 11h17m, DEC: +13o25' |
| Object size : | 28.8' x 26.9' |
| Object magnitude : | 9.4 to 10.3 |
| More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ Leo Triplet |
Leo Triplet 2020-03-21 modern processing
(Click on image to get one in full resolution, opens in a new window)
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| Date : | 2020-03-21 |
| Time (UT) : | 21:37 to 22:21 |
| Mount : | SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019) |
| Guide : | QHY5 camera with 400 mm f/6.3 lens |
| Lens/telescope : | TS130 APO f/7 910mm, 3" focuser |
| Corrector/Barlow : | 3" field flatter, x1. T48 connector to camera |
| Field (FOV) : | 2.25 x 1.5o (full frame) before crop |
| camera : | Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit |
| camera temperature: | About 6o C above surrounding temperature |
| Film/CCD : | Raw, Cr2 |
| Filter : | none |
| Control system: | Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux) |
| Exp. time : | 32x60 seconds, iso1600, dithering mode |
| Image process tool : | Siril, Gimp, Irfanview |
| Processing : | synthetic bias, flat, photometric color calibration |
| Weather : | clear, temperature 0o C |
| Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
| Comment : | Four years later I processed the photos I took the night after. Now with more modern tools and it really helped. The sensor was very dirty, but not much of that can be seen here. There are many other objects than these three, see: Leo triplet plate solved, opens in a new window. |
Leo Triplet 2020-03-20
(Click on image to get one in full resolution, opens in a new window)
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| Date : | 2020-03-20 |
| Time (UT) : | 22:08 to 22:20 |
| Mount : | SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019) |
| Guide : | QHY5 camera with 400 mm f/6.3 lens |
| Lens/telescope : | TS130 APO f/7 910mm, 3" focuser |
| Corrector/Barlow : | 3" field flatter, x1. T48 connector to camera |
| Field (FOV) : | 2.25 x 1.5o (full frame) before crop |
| camera : | Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit |
| camera temperature: | About 6o C above surrounding temperature |
| Film/CCD : | Raw, Cr2 |
| Filter : | none |
| Control system: | Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux) |
| Exp. time : | 8x60 seconds, iso1600, dithering mode |
| Image process tool : | AstroImageJ, Fitswork, Irfanview |
| Processing : | resize, level, cal dark&bias, synthetic flat cal |
| Weather : | clear, temperature 0o C |
| Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
| Comment : | A zoom in on the Leo Triplet, It consist of the three galaxies M65, M66 and NGC 3628. This is in the Southern direction. If I had prepared it better I could had much longer exposure, now I only got 8 minutes. |
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