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Old 28-02-2011, 11:28 AM
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mental4astro (Alexander)
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Shooting the breeze and a sketch

Hi all,

Last Saturday night I got together with a couple of other IISers at Randwick Girls' High oval for an asto session. We lucked out on one of the better nights we've had for a while. Good for Sydney anyways, .

It was a good few hours spent comparing and sharing notes, scopes, eyepieces and filters. Cheers Peter and Stephen, .

My main objective for the night was to get a sketch done. I hadn't been able to put pen to paper for a while now. The target I selected was also one I hadn't been able to pin at all from home, the open cluster and planetary nebula duo of NGC 2818 and 2818A in Pyxis.

Armed with two charts and my trusty Odessius, I had a bugger of a time. At first I thought that there must be some type of misprint as could not see any open cluster where the charts indicated. Then, all of a sudden, out of the corner of my eye, a little roundish puff caught my attention. BINGO! NGC 2818A was in the bag.

The surprising thing is how unimpressive the open cluster is! The collection is so loose and faint, no wonder I had so much trouble tracking it. I'm guessing that at a dark site the cluster would be a little more obvious.

An OIII filter helped a great deal bring out detail in the PN. It somewhat resembles a Pac Man figure, as it is a disk of mist with a piece bitten out. The missing "bit" is actually very much fainter than the rest. I'll be trying for this little two-for-one combo again next dark site time.

I managed a sketch of the duo. It is not the brightest of targets from Sydney. That in itself was the challenge. I'm actually very pleased to have been able to nab it after so many months trying, and that IT should be the object of my first sketch in ages.

The second pic shows Odessius up and running, with Peter's Tantalus, his 13.1" dob, behind my 17.5" beastie (yes, it does have 3 finder scopes, one 2", another 3" and a red spot finder mounted on the 3", ).

Mental.
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Old 28-02-2011, 11:54 AM
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Liz
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Sounded like a good night Alex. Always good to nail new astronomical targets.
The PN looks pretty bright in your (good) sketch, will have to give it a go.
Wow, how impressive is your Odessius!!
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Old 28-02-2011, 12:33 PM
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GeoffW1 (Geoff)
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Hi,

Good to hear all went well at last. Sorry I was not there myself, but I could not make it.

Cheers
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Old 28-02-2011, 01:00 PM
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barx1963 (Malcolm)
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Well done on NGC 2818. I found this an interesting target to makie a direct comparison with M46. The OC itself is better at low power, and the PN in just a little fuzzy speck then. I did note in my report a couple of weeks back that the OC composed of many faint stars, so a dark sky should help.
Sounds like it was a great night.

Malcolm
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Old 28-02-2011, 01:40 PM
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mental4astro (Alexander)
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Thank you for your kind comments.

Liz, it appears bright as I drew it how I saw it through the filter. Without the filter it is much, much fainter.

Malcom, I'll chase down your report mentioning 2818. See, you should have done a sketch too so we can compare .

It was a very pleasent night. Oh, I forgot to mention that we also got stuck into some chillie popcorn that I made up that arvo. Just enough to keep the hunger pains away and the belly happy over 5 hours, .
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Old 28-02-2011, 03:07 PM
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Paddy (Patrick)
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Excellent sketch, Alex. I suspect that your view of the cluster may have suffered from light pollution. From my dark sky it looks pretty specko. It is amazing how much of the PN you were able to see from the middle of LP central!
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Old 28-02-2011, 04:31 PM
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orestis
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Awesome sketch Alex,

looks like the mellsish technique is working very well for you.I have yet to get the materials to try it out(hopefully i can try it out soon).


Nice set of observations especially from suburbia.

cheers Orestis
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Old 01-03-2011, 09:44 PM
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THat's a fine sketch Alex, nice work! For some reason I love the idea of multiple finders on a big dob
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