| Object : | Grumium, binary double star, another name: Xi Draconis |
| Coordinates/Direction : | RA: 17h53m, DEC: +56o52' |
| Object size : | Double star separation 316" |
| Object magnitude : | Primary 3.75, Secondary 16 |
| More to know : |
Double Star, Wikipedia:
https://en.wikipedia.org/ wiki/ Double star
Grumium:
https://en.wikipedia.org/ wiki/ Xi Draconis
|
| Exp. time : | 60x30 seconds, iso1600, dithering mode |
| Image process tool : | Siril, Gimp, Irfanview |
| Processing : | flat calibration, no darks, synthetic bias, photometric color calibration |
| Weather : | clear sky, temperature 0 C |
| Comment : |
A third double star this night.
This also belong to the constellation Draco.
Crop around the binary star, but they are too close and this long exposure saturated them to one big blob.
See the full resolution image and zoom in.
Can you recognize any object ?
|
| Comment : |
Near the middle of the full field image is this object,
IC 1286.
It's a spiral galaxy of magnitude 14.8, barely seen in this photo.
There are many more objects in the full field image, look at this plate solved image by Astrometry:
Grumium plate solved.
It opens in a new window. |
English
(Click on the image to get one in full resolution in a new window)
