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Galaxy |
| Object : | M87 |
| Coordinates/Direction : | RA: 12h30m, DEC: +12o23' |
| Object size : | 7.2' to 6.8' |
| Object magnitude : | 8.6 |
| More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ Messier 87 |
M87 2020-03-20
(Click on image and get one in full resolution in a new window)
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| Date : | 2020-03-20 |
| Time (UT) : | 22:56 to 23:35 |
| Mount : | SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019) |
| Guide : | ASI120 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 : | 30x60 seconds, iso1600, dithering mode |
| Image process tool : | AstroImageJ, Fitswork, Irfanview |
| Processing : | resize, level, cal dark&bias, synthetic flat calibrated |
| Weather : | clear |
| Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
| Comment : | The galaxy M87 is small even in the big refractor with 910 mm focal length. This is a 800x800 1:1 pixel crop around the galaxy and some details show up. It's small even here, in reality it's a giant elliptical galaxy. In its surroundings there are a lot of other galaxies, plate solved version: M87 by Astrometry.net. |
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