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Observing >> Deep Sky Observing

Achernar
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Reged: 02/25/06
Posts: 5020
Loc: Mobile, Alabama, USA
Re: Ring Nebula - I found it!
      06/26/09 11:53 PM Attachment (9 downloads)

NGC-6210 is very bright but tiny. At anything much less than 100X, you can mistake it for a star. It does respond well to nebula filters and even better to magnifications in the range of 200 to 250X. It is not the easiest object to find by star hopping, but a slow careful search of the area will show a bluish object that looks like a star that won't focus. That's NGC-6210, and if the seeing is steady, try looking at it at 250X and see if you can see the central star. I've seen it but when the seeing is poor the surrounding nebula hides it from view. It's also known as the Turtle Nebula because of some peculiar projections from the inner shell that resembles the outline of many a terrestrial turtle's head, shell and limbs.

Taras

--------------------
15-inch F/4.5 Dob under construction
10-inch F/4.5 Discovery Dob
6-inch F/8 Homebuilt Dob
4 1/4-inch F/4 Homebuilt reflector
A whole bunch of eyepieces, filters and other accessories....
Two curious cats


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Entire thread
Subject Posted by Posted on
* Ring Nebula - I found it! cycledogg 06/23/09 11:45 PM
. * Re: Ring Nebula - I found it! Achernar   06/26/09 11:53 PM
. * Re: Ring Nebula - I found it! BSJ   06/27/09 08:49 AM
. * Re: Ring Nebula - I found it! Javier   06/28/09 10:35 AM
. * Re: Ring Nebula - I found it! BSJ   06/29/09 10:13 PM
. * Re: Ring Nebula - I found it! Johndob   06/30/09 01:33 AM
. * Re: Ring Nebula - I found it! arpruss   06/28/09 03:53 PM
. * Re: Ring Nebula - I found it! Bill Barlow   06/29/09 05:47 PM
. * Re: Ring Nebula - I found it! AlanK   06/24/09 07:22 AM
. * Re: Ring Nebula - I found it! Peter9   06/24/09 08:37 AM
. * Re: Ring Nebula - I found it! ensign   06/24/09 04:58 PM
. * Re: Ring Nebula - I found it! PG Lewis   06/24/09 07:16 PM
. * Re: Ring Nebula - I found it! SPACEMAN D   06/24/09 07:58 PM
. * Re: Ring Nebula - I found it! Javier   06/26/09 12:34 PM
. * Re: Ring Nebula - I found it! mitaccio   06/26/09 06:03 PM
. * Re: Ring Nebula - I found it! NerfMonkey   06/26/09 06:45 PM
. * Re: Ring Nebula - I found it! calder   06/24/09 12:51 AM
. * Re: Ring Nebula - I found it! Bill Weir   06/24/09 02:12 AM
. * Re: Ring Nebula - I found it! Tom Andrews   06/24/09 12:24 AM

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