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Sigma orionis in a 100mm ed

Started by cysmarc, 12/17/2006 05:16PM
Posted 12/17/2006 05:16PM Opening Post
Hi,
I just got back in from observing.
I saw Sigma Orionis and it was great I got a/b c d and e really clearly at 150x
I didn't try to go lower. I know that c is supossed to be hard (Left Turn at Orion) what is the lowest x that you've been able to see all 4 in a 4 inch refractor?
Clear Skies
Posted 12/17/2006 07:21PM #1
Itz,
I've read that about Sigma Ori too, but it is actually easy to see the C star in small scopes. I have seen it in my 80mm achromat. I don't remember the power, but it was well below 100x. A clear, steady sky helps. The worse your seeing conditions, the larger the aperture and/or power you may need.

David E
Posted 12/17/2006 07:57PM #2
what is the lowest x that you've been able to see all 4 in a 4 inch refractor?

I can just split sigma Ori AB-C in my Kowa 32x82FL binocular. It is a very good binocular. grin

Clear skies,
Milt