Sunday, August 16, 2009

A frist try to Pease 1

More than 1 month I have not been observing. During July there were a couple of good nights, but could not find enough motivation to get the scope out. This year has been very tough (I’m working in automotive). But after a good week of holiday I’m ready to watch the stars again!

The sky conditions of tonight are not very good. There are high clouds and it’s not very transparent. NELM is around 5.0. I have no descriptions of what I observed, except of the search to Pease 1 (planetary in M15) and Jupiter.

Pease 1: Pease 1 is a little planetary nebula in M15. You need a good finder chart to catch this object. Luckily there is a good website where you find all the required or

It’s a 3-step approach to find it. First you need to find the 4 trapezium star, which is not difficult at 311x. Step 2 is to locate a triangle east of this trapezium and continue you path to a faint stars towards the north of the globular. The triangle is still easy, but finding this faint star becomes more challenging, but still doable. For step 3 you need to pump the power to 500x: we need to go from this star a small 28” to the nebula. Not easy because there are a lot of stars and due to the high power they are all like little discs. I could see “something”, a disc maybe somewhat larger than the stars but I’m not too sure it’s the planetary. When looking at observations from other people I conclude this is not yet Pease 1. But at least, I’m more prepared for the next try as I’ve walking around in the region …

Jupiter: I’ve never seen Jupiter as well as during this evening: amazing lot’s of details in the belts with all kind of structures, color differences etc. Besides the 2 main belts I could see some other ones. The red spot was also visible, but unfortunately the impact was still “behind” the planet.

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