[AZ-Observing] Re: The "Hand Mirror" cluster in Puppis
- From: Andrew Cooper <acooper@xxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Tue, 20 Feb 2007 17:56:41 -1000
Odd, if anything I saw a brighter spot in the center, while the outer
shape could certainly be described as "hand mirror" in shape. I was
using a much larger scope at the time, the 18", which could certainly
account for the difference. In both my drawing and the DSS image a
concentrated thick patch of dimmer stars is in the middle... a
reflection in the mirror?
Andrew
My drawing with the 18"
http://www.siowl.com/dwg/ngc2509dwg.jpg
The DSS image...
http://www.siowl.com/dss/ngc2509dss15.jpg
04 Dec 2005, Sentinel, AZ, 46cm f/4.5 Deep Violet @ 175x
Small, rich, faint, an irregular spray of brighter stars surround a
small patch of dim and unresolved stars
Steve Coe wrote:
> Howdy all;
>
>
> I was observing in Puppis on New Moon weekend. We were under dark skies 100
> miles from Phoenix, Arizona. I was using my Nexstar 11 SCT. I rated the
> night at 7/10 for seeing and 8/10 for transparency, a very good evening.
>
>
>
> The cluster NGC 2509 was observed with a 27mm Panoptic eyepiece. My notes
> say it was pretty bright, pretty large, somewhat rich, compressed and has an
> irregular figure. I called it the "hand mirror" cluster because it consists
> of a circlet of stars attached to a double chain that projects toward the
> SW. This aspect is more prominent at 200X. At that power I counted 26
> stars of mags 11 and fainter. There are many pairs in the circlet with a
> dark middle.
>
>
>
> This round circle of stars with a dark middle and then a projection of stars
> to form a "handle" is unique in my years at the eyepiece, has anyone seen
> anything similar?
>
>
>
> Clear Skies to us all;
>
> Steve Coe
>
>
>
>
> --
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>
>
--
Andrew Cooper
----------------------------------------------------
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