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Observing >> Deep Sky Observing

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Jeff Young
Post Laureate
*****

Reged: 08/04/05
Posts: 4325
Loc: Ireland
M78, NGC1502 and NGC2403 (w/sketches)
      #2162666 - 02/02/08 11:37 AM

We had two clear nights in a row, but the first included 110 kph winds, so I didn't dare open the observatory. The second night, while still too windy for the seeing to be up to much, was considerably calmer and exhibited decent transparency.

Quote:

M78 (w/ NGC2071) 2/1/2008 21:45 UT; Pickering 4, NELM 6, SQM 20.6

Nebulosity obvious at all magnifications with UHC assisting slightly at 175x, and a bit moreso at 110x and 80x. OIII overpowers at all mags. Three involved stars, with the brighter two of similar magnitude.

This is a big-exit-pupil target: 55 Plossl (5.5mm exit pupil) slightly better than 31T5 w/ telecompressor (3.9mm exit pupil).






I tried a couple of targets south of Orion (NGC2207 & 2362), but at less than 10° over my horizon they were a mess. So I switched to something a bit more overhead.

Quote:

NGC1502 2/1/2008 22:25 UT; Pickering 4, NELM 6, SQM 20.6

Quite pretty (and I'm not much of an open cluster fan); there appears to be a ton of doubles, with one very bright avocado pair near center, an arc of somewhat dimmer stars to the NE, and two prominent unequal-magnitude doubles to the E.






Quote:

NGC2403 2/1/2008 22:50 UT; Pickering 4, NELM 6, SQM 20.6

Quite large and bright. 10 or 12 foreground stars and 1 or 2 knots (one of the knots confirmed at 260x, the other still iffy). Clearly a tilted spiral, with a large nearly circular but very poorly condensed core. The arms, though, are a mess. The most apparent knot (to the ENE) and the bit of a dark lane to the N of the core give a strong hint to placement of one, but that's about it.






-- Jeff.

--------------------
Nikon 18x70s / UA Millennium                                       Colorado:
Solarscope SF70 / TV Pronto / AP400QMD                       Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO                        Tak Mewlon 250 / AP600EGTO


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helpwanted
Carpal Tunnel
*****

Reged: 07/04/07
Posts: 2874
Loc: Phoenix, AZ
Re: M78, NGC1502 and NGC2403 (w/sketches) new [Re: Jeff Young]
      #2163298 - 02/02/08 04:29 PM

great job of sketching! i wish i could do that! nice report!
oh, and i love the pic in your avitar of your observatory!

--------------------





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Jeff Young
Post Laureate
*****

Reged: 08/04/05
Posts: 4325
Loc: Ireland
Re: M78, NGC1502 and NGC2403 (w/sketches) new [Re: helpwanted]
      #2163364 - 02/02/08 05:04 PM

Thanks, helpwanted. I only stared sketching back in Nov -- it's surprising how much it's helped my observing.

I finally got a website uploaded with the observatory construction (which is a bit shorter than the CloudyNights thread). I've also put all my sketches to date up there:

http://www.rokeby.ie/observatory

Cheers,
-- Jeff.

--------------------
Nikon 18x70s / UA Millennium                                       Colorado:
Solarscope SF70 / TV Pronto / AP400QMD                       Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO                        Tak Mewlon 250 / AP600EGTO


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olivier
sage


Reged: 01/05/05
Posts: 209
Loc: Belgium - Leuven
Re: M78, NGC1502 and NGC2403 (w/sketches) new [Re: Jeff Young]
      #2164569 - 02/03/08 08:11 AM

Great report, Jeff.

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Olivier

http://deepsky-astronomy.blogspot.com/
http://www.deepskylog.be/

Obsession 18" Classic with ServoCat and ArgoNavis
Celestron Advanced C8N-GT (8" Newton)
Canon EOS 300D
Messier: 110/110
Herschel: 400/400
Herschel II: 195/400


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Houdini
professor emeritus


Reged: 07/13/07
Posts: 579
Loc: Europe
Re: M78, NGC1502 and NGC2403 (w/sketches) new [Re: olivier]
      #2165562 - 02/03/08 04:06 PM

Excellent sketches !

--------------------
16" f/4.9 motorized alt-az, 25" f/5 Dobson, 43" f/4 alt-az under construction
Mirror Edge Support Calculator


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Jeff Young
Post Laureate
*****

Reged: 08/04/05
Posts: 4325
Loc: Ireland
Re: M78, NGC1502 and NGC2403 (w/sketches) new [Re: Houdini]
      #2165841 - 02/03/08 05:58 PM

Thanks Olivier and Robert!

Cheers,
-- Jeff.

--------------------
Nikon 18x70s / UA Millennium                                       Colorado:
Solarscope SF70 / TV Pronto / AP400QMD                       Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO                        Tak Mewlon 250 / AP600EGTO


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