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Advertisement / Annons: |
Galaxy |
| Object : | NGC 4111 |
| Coordinates/Direction : | RA: 12h07m, DEC: +43o03' |
| Object size : | 4.6' x 1.0' |
| Object magnitude : | 10.7 |
| More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ NGC 4111 |
NGC 4111 galaxy and neighbours 2020-01-22
(click on the image to get a full resolution photo in a new window)
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| Date : | 2020-01-22 |
| Time (UT) : | 23:01 to 00:42 |
| Mount : | SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019) |
| Guide : | QHY5 camera with off-axis |
| 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 by EQMOD, camera by APT, guide by PHD2, focuser by USB-focus, ASCOM Windows PC |
| Exp. time : | 44x120 seconds, iso1600, 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 4111 is one of many members of this galaxy group. Click on the image and get a new image in full resolution, how many galaxies can you find ? The soft weak rings you see is a rest of dust blobs I have removed during the image processing. |
NGC 4111 galaxy and neighbours 2020-01-22, plate solved
(click on the image to get a full resolution photo in a new window)
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| Date : | 2020-01-22 |
| Comment : | One way to get to know which objects there are in the image is to use a plate solver. I used Astrometry.net to get this image with information. If you look carefully in the full resolution image you will find more galaxies. |
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