| Object : | Comet, Panstarrs C/2011 L4 |
| 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/ 2011L4/ 2011L4.html |
| Date : | 2013-04-06 |
| Time (UT) : | 01:16 to 01:48 |
| Mount : | EQ6 Pro Synscan controlled by EQMOD |
| Lens/telescope : |
Pentax 500mm f/4.5 (f/6.3) |
| Field (FOV) : | 4.1x2.7 degree, before cropping |
| Filter : | none |
| Camera : |
Canon EOS 5D (Mark I) |
| Exp. time : | 25x60 seconds at ISO1000 |
| Image process tool : | Fitswork, Irfanview |
| Processing : | align, resize, level, cal dark and gamma image processing |
| Site : | Sweden, Stockholm |
| Comment : |
Taken from my balcony, this comet was great, I took several photos of it. I just wish I had taken it from a darker place. |
| Date : | 2013-04-05 |
| Time (UT) : | 23:43 to 00:08 |
| Mount : | EQ6 Pro Synscan controlled by EQMOD |
| Lens/telescope : |
Pentax 500mm f/4.5 (f/5.6) |
| Field (FOV) : | 4.1x2.7 degree, before cropping |
| Filter : | none |
| Camera : |
Canon EOS 5D (Mark I) |
| Exp. time : | 20x60 seconds at ISO1000 |
| Image process tool : | Siril, Gimp, Fitswork, Irfanview |
| Processing : | Dark and flat calibrated |
| Site : | Sweden, Stockholm |
| Comment : |
A test how to get something from the other photos I took with more modern software.
One problem with this camera was to handle the red channel.
I'm not sure why, what's different with this old camera is that it only had 12-bit resolution.
A guess can be that it's not linear. |
| Date : | 2013-04-06 |
| Time (UT) : | 00:27 to 00:59 |
| Mount : | EQ6 Pro Synscan controlled by EQMOD |
| Lens/telescope : |
Pentax 500mm f/4.5 (f/5.6) |
| Field (FOV) : | 4.1x2.7 degree, before cropping |
| Filter : | none |
| Camera : |
Canon EOS 5D (Mark I) |
| Exp. time : | 25x60 seconds at ISO1000 |
| Image process tool : | Siril, Gimp, Fitswork, Irfanview |
| Processing : | Dark and flat calibrated |
| Site : | Sweden, Stockholm |
| Comment : |
I took a lot of photos this night but had to throw away them because of all clouds. |
| Date : | 2013-04-06 |
| Time (UT) : | 01:16 to 01:48 |
| Mount : | EQ6 Pro Synscan controlled by EQMOD |
| Lens/telescope : |
Pentax 500mm f/4.5 (f/6.3) |
| Field (FOV) : | 4.1x2.7 degree, before cropping |
| Filter : | none |
| Camera : |
Canon EOS 5D (Mark I) |
| Exp. time : | 25x60 seconds at ISO1000 |
| Image process tool : | Siril, Gimp, Fitswork, Irfanview |
| Processing : | Dark and flat calibrated |
| Site : | Sweden, Stockholm |
| Comment : |
A test how to get something from the other photos I took with more modern software. |
| Date : | 2013-04-06 |
| Time (UT) : | 01:58 to 02:27 |
| Mount : | EQ6 Pro Synscan controlled by EQMOD |
| Lens/telescope : |
Pentax 500mm f/4.5 (f/6.3) |
| Field (FOV) : | 4.1x2.7 degree, before cropping |
| Filter : | none |
| Camera : |
Canon EOS 5D (Mark I) |
| Exp. time : | 22x60 seconds at ISO1000 |
| Image process tool : | Siril, Gimp, Fitswork, Irfanview |
| Processing : | Dark and flat calibrated |
| Site : | Sweden, Stockholm |
| Comment : |
During the night the comet pass by close to the Andromeda galaxy.
It had been much better if I had let the aperatur be fully open at f/4.5, softer but more photons collected. |
| Date : | 2013-04-20 |
| Time (UT) : | 23:42 to 23:55 |
| Mount : | EQ6 Pro Synscan controlled by EQMOD |
| Lens/telescope : |
Pentax 500mm f/4.5 (f/5.6) |
| Field (FOV) : | 4.1x2.7 degree, before cropping |
| Filter : | none |
| Camera : |
Canon EOS 5D (Mark I) |
| Exp. time : | 5x60 seconds at ISO1000 |
| Image process tool : | Siril, Gimp, Fitswork, Irfanview |
| Processing : | Dark and flat calibrated |
| Site : | Sweden, Stockholm |
| Comment : |
Last night I got a photo of the comet. Now it fade away quickly. |
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