Sunday, September 23, 2012

Uranus and 44 Psc pairing

I was reading through my email yesterday and noticed a blurb in S&T newsletter that said Uranus was going to be near a star for the next few weeks.  Tonight was clear (but COLD) so I decided to take a quick look with my 7x50's to see if I could even find Uranus.  Armed with SkySafari and my iPad I found Fomalhaut and Deneb Kaitos in the SE sky.  Both are prominent and bright.  Uranus is above Deneb Kaitos about 15 degrees.  Iota Ceti is about half way and a bit to the right and visible unaided in my semi dark sky. Just above Iota Ceti is a dim trapezoid of 5 stars, two on top, three on bottom that is just barely visible unaided but unmistakable in my 7x50's.  There is a small linear array of 3 dim stars just to the east of the trapezoid that is also unmistakable.  The top of the trapezoid points to Uranus in the direction of the linear array.  A medium size triangle of 3 pairs of stars is prominent just before arriving at Uranus.  I could not make out 44 Psc, the companion star, in my 7x50's but was able to see HD 2004, a mag 8 star nearby.  It was fairly easy to find Uranus and I was hooked.  I hauled out the 8" dob and quickly found my target.  Bingo, the 25mm ep split the pair nicely.  Switching to a 10mm ep clearly showed the pretty blue green color of Uranus.  44 Psc appeared white to me.
It was 11:30 before I made it outside so Uranus was a nice 55 degree altitude in the SE sky, clear of any obstacles and the moon had about set.  Nearly perfect viewing.  Earlier I watched the BBC episode of Horizon that dealt with infinity.  Very interesting show.  I had a hard time watching it though as it is in HD on youtube which doesn't work well on either my iPad or desktop.  I switched to a lower res on the desktop and it came through just fine with no stalling.  The show went through a lot of the history behind the concept of infinity and a number of the paradoxes surrounding it.  The end segued into cosmology and the notion of an infinite universe which was REALLY weird.  I learned about the largest named number, Graham's Number which was new to me.  Still don't quite understand where it came from. (note: I do now.  neato!)
The past month I've had to content myself with watching the planets dance.  The main one now is Venus in the morning which is still a wonderful sight.