English
|
Advertisement / Annons: |
Galaxy |
| Object : | NGC 5907 |
| Coordinates/Direction : | RA: 15h15m, DEC: +56o19' |
| Object size : | 12.7' x 1.4' |
| Object magnitude : | 11.1 |
| More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ NGC 5907 |
NGC 5907 galaxy crop 2016-01-17
(Click on image and get one in full resolution in a new window)
|
| Date : | 2016-01-17 |
| Time (UT) : | 00:56 to 01:37 |
| Mount : | SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019) |
| Guide : | QHY5 camera with off-axis |
| Lens/telescope : | TS130 APO f/7 910mm (682mm, f/5.2), 3" focuser |
| Corrector/Barlow : | Riccardi 2.5" field flatter, x0.75. T48 connector to camera |
| Field (FOV) : | 3.0 x 2.0o (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 by EQMOD, camera by APT, guide by PHD2, focuser by USB-focus, ASCOM Windows PC |
| Exp. time : | 30x60 seconds, iso800, dithering mode |
| Image process tool : | AstroImageJ, Fitswork, Irfanview |
| Processing : | resize, level, cal dark & bias with dithering technique, flat cal, noise filter |
| Weather : | clear |
| Comment : | The galaxy NGC 5907 is like a needle, with a better photo it could be seen a tidal stream around the galaxy from earlier collision with other galaxies. The photo is a 1:1 pixel crop. To get a better quality a longer focal length or smaller pixel had been good. A RC (Ritchey Cretien) 10" f/8 telescope had been perfect for me. |
|
| Go Back |