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Galaxy |
| Object : | NGC 1023 |
| Coordinates/Direction : | RA: 02h40m, DEC: +39o03' |
| Object size : | 8.7' x 3.0' |
| Apparent magnitude : | 10.3 |
| Distance : | 19 Mly |
| No solar mass : | - |
| Type : | SB0 |
| Discovered by : | William Herschel, year 1786 |
| Find in constellation : | Perseus |
| More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ NGC 1023 |
NGC 1023, 2023-10-15
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| Date : | 2023-10-15 |
| Time (UT) : | 19:46 to 21:11 |
| Mount : | SkyWatcher EQ6 Pro, Beltdrive (DIY 2019) |
| Guide : | QHY5 camera with 200 mm f/3.5 lens |
| Lens/telescope : | Pentax 645 300 mm ED f/4 (set to f/4) |
| Corrector/Barlow : | - |
| Field (FOV) : | 6.8x4.5o (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 : | 60x60 seconds at ISO1000, dithering every third image |
| Image process tool : | AstroImageJ, Fitswork, Irfanview |
| Processing : | level, cal flat, dithering no bias dark noise filter |
| Weather : | clear with some clouds drifting by |
| Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
| Comment : | A small weak and not very famous galaxy. |
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