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Galaxy |
| Object : | NGC 6946, Fireworks Galaxy |
| Coordinates/Direction : | RA: 20h34m, DEC: +60o09' |
| Object size : | 16.2' x 11.2' |
| Object magnitude : | 9.6 |
| More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ NGC_6946 |
NGC 6946 galaxy crop, 2024-04-11
(Click on image and get one in full resolution in a new window)
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| Date : | 2024-04-11 |
| Time (UT) : | 20:07 to 23:52 |
| Mount : | SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019) |
| Guide : | QHY5 camera with 200 mm f/3.5 lens |
| Lens/telescope : | Pentax 645 300 mm ED f/4 (medium format lens) |
| 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 : | 149x60 seconds, iso1600, dithering mode |
| Image process tool : | Siril, Gimp, Irfanview |
| Processing : | synthetic bias, flat, photometric color calibration |
| Weather : | clear, temperature +12o C |
| Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
| Comment : | The galaxy NGC 6946 or Fireworks Galaxy, it isn't far away, 25 millions ly as our other neighbors. It has some interesting neighbors which can be seen here on the plate solved image: NGC 6946, plate solved by Astrometry.net. The open cluster NGC 6939 is one of them. Great weather this evening and night. I could get 2.5 hours of exposure. Maybe this was the last night this season for astrophotography. |
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