Quark
01-09-2009, 08:57 PM
Hi All,
Had a most interesting imaging session last night August 31st. For some reason I thought that the Wesley Impact remnant would be at the CM at about 8pm CST so I was all setup with my DMK running by 7:30pm, there was a fair bit of cloud around but I had been monitoring the path of the jet stream and the position of the high pressure system that would get to Broken Hill later in the night, so wasn’t worried about the cloud.
After firing up Jupiter2 I realized that the longitude I was interested in would not be at the central meridian until about 1am. I started capturing R, G & B avi’s with the intent of doing a set every 20 degrees of longitude, the cloud got progressively thicker, which was a shame as when a hole came along the seeing was not bad, about 5 to 6 / 10.
At 8:30pm the cloud closed right in, although occasionally I could still see Jupiter on my laptop screen. Just after 10pm the cloud rapidly cleared, just as quickly as it had set in and the seeing was good 7 to 8 / 10 and it stayed like that for hours.
At midnight I had to flop my scope on its equatorial mount. I disconnected my imaging setup and checked the collimation of my mirrors, then got back into capturing more data, still at 20 degree longitude CMII intervals. The seeing was very consistent and only started to fall off slightly at about 1.30am. I think this was due more to the fact that my scope was then looking over my next door neighbour’s house, rather than any high level atmospheric disturbance.
Definitely a night to remember. I have posted 8 RGB images plus an animation, representing just over 3 hrs of Jupiters rotation, that includes a transit of the GRS, transit of Io and the Wesley Impact remnant, which is getting very difficult to make out.
http://iceinspace.com.au/uploads/20090831JupAnim.gif
These are the ramblings of an abscessed planetary imager.
Thanks for looking at my images.
Regards
Trevor
Had a most interesting imaging session last night August 31st. For some reason I thought that the Wesley Impact remnant would be at the CM at about 8pm CST so I was all setup with my DMK running by 7:30pm, there was a fair bit of cloud around but I had been monitoring the path of the jet stream and the position of the high pressure system that would get to Broken Hill later in the night, so wasn’t worried about the cloud.
After firing up Jupiter2 I realized that the longitude I was interested in would not be at the central meridian until about 1am. I started capturing R, G & B avi’s with the intent of doing a set every 20 degrees of longitude, the cloud got progressively thicker, which was a shame as when a hole came along the seeing was not bad, about 5 to 6 / 10.
At 8:30pm the cloud closed right in, although occasionally I could still see Jupiter on my laptop screen. Just after 10pm the cloud rapidly cleared, just as quickly as it had set in and the seeing was good 7 to 8 / 10 and it stayed like that for hours.
At midnight I had to flop my scope on its equatorial mount. I disconnected my imaging setup and checked the collimation of my mirrors, then got back into capturing more data, still at 20 degree longitude CMII intervals. The seeing was very consistent and only started to fall off slightly at about 1.30am. I think this was due more to the fact that my scope was then looking over my next door neighbour’s house, rather than any high level atmospheric disturbance.
Definitely a night to remember. I have posted 8 RGB images plus an animation, representing just over 3 hrs of Jupiters rotation, that includes a transit of the GRS, transit of Io and the Wesley Impact remnant, which is getting very difficult to make out.
http://iceinspace.com.au/uploads/20090831JupAnim.gif
These are the ramblings of an abscessed planetary imager.
Thanks for looking at my images.
Regards
Trevor