| Object : | Comet, Ison C/2012 S1 |
| Coordinates/Direction : | - |
| Object size : | - |
| Object magnitude : | - |
| More to know : |
You can read more about the comet on Seiichi Yoshida's homepage:
http://www.aerith.net/ comet/ catalog/ 2012S1/ 2012S1.html |
| Exp. time : | 18x30 seconds at ISO1000 |
| Image process tool : | Fitswork, IrfanView. |
| Processing : | align rgb, dark, bias, median stack. |
| Comment : |
Expectation about this comet was big, very bright and big, it failed.
This is a crop around the comet.
Almost invisible, it's the green dot in center.
Even if it's weak you can clearly see the tail.
The comet has this night a magnitude of 10, a couple of weeks later it peaked at magnitude -4 which is stronger than Hale Bopp.
But I had clouds on the sky these days.
On the full resolution image there is a bright object lower right, this the planet Mars. |
| Date : | 2013-10-19 |
| Comment : |
With all 38 images I had and aligned on the stars it look like this.
This is a 800x800 1:1 crop around the comet.
Siril which I used to stack couldn't handle comet stacking when it´'s weak like this comet.
In this case AstroImageJ was better. |
English
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