[Quark (Trevor)]

Originally Posted by bird

Thanks Trevor, all excellent images.

cheers, Bird

Thanks Anthony, I was pretty pleased with my data and have also posted a set of RGB's that highlight quite nicely the changing structure of the Bird Strike region. Trust you are enjoying your vacation.

Originally Posted by gregbradley

Wow, sensational. The standard of planetary imaging on this site is so very high.

What gear did you use for this?

What's the seeing like generally in Broken Hill?

Also what does CM11 162 degrees stand for?

Greg.

Thanks very much Greg I appreciate you comments,

I have an observatory with a 16" F4.5 Newt, it is a Meade Starfinder however it is highly modified, it is mounted on a very heavy GEM that was designed and built by me. The scope has a JMI motofocus and the mount is equipped with an Anssen Technologies dual axis drive & drive corrector by Peter Mellander. My scope also is fitted with a Peltier cooling system designed and built by me and I use an Orion filter wheel with Astronomik Type II RGB filters.

The seeing in Broken Hill is generally good, it is very isolated and like most dessert type environments has generally low levels of humidity. The seeing can sometimes be very good with the stars steady to almost the horizon.

CMII 162 degrees refers to the longitude of the Central Meridian of the polar region at the time of the exposure in UTC. As there is differential rotation within Jupiters atmosphere the longitude of the CM or Central Meridian will have a different value depending on the latitude. The longitude system for the polar region where the Bird Strike occurred is the CMII system.