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Posts Made By: Dave Mitsky

December 12, 2006 12:17 PM Forum: Solar System Observing

Be on the Lookout for the Planetary Trio

Posted By Dave Mitsky
Here's a photo of Saturn (lower left) and the Moon on Sunday morning.

Dave Mitsky

December 18, 2006 11:39 AM Forum: Deep Sky Observing

What did I find?

Posted By Dave Mitsky
There are images of M33 showing the various HII regions at http://www.ngcic.org/ngcicdb.asp and http://www.seds.org/messier/Pics/More/m33map.jpg

M101 also has numerous HII regions.

http://www.robgendlerastropics.com/M101text.html

Dave Mitsky

December 19, 2006 07:13 PM Forum: Eyepieces

Vixen Eyepieces?

Posted By Dave Mitsky
IIRC, it's been reported that there is somewhat more lateral color than usual in the Vixen wide-field line but overall they are very fine eyepieces and are clearly bargains at the current wholesale prices.

Dave Mitsky

December 25, 2006 12:37 AM Forum: Digital SLR AstroPhotography

ISS and Discovery Pass - December 19, 2006

Posted By Dave Mitsky
Here's a shot of the pair as they traversed the northern sky.

Dave Mitsky

January 5, 2007 04:24 PM Forum: CCD Imaging and Processing/Deep Sky

In praise of long focal ratio

Posted By Dave Mitsky
Those are simply outstanding images, Roland.

Dave Mitsky

January 9, 2007 08:44 PM Forum: After Dark

January's Bright Comet McNaught ( C/2006 P1 )

Posted By Dave Mitsky
I was successful in observing Comet McNaught P1 on Monday evening using 8x42, 10x50, and 15x70 binoculars and an Orion ST80 achromat. A full report has been posted in the Solar System section.

Dave Mitsky

January 21, 2007 12:49 AM Forum: Solar System Observing

ALPO Lunar Club Program Question

Posted By Dave Mitsky
The Old Moon in the New Moon's Arms is what you saw this evening, a young crescent moon with ample Earthshine, if you had clear skies for the occultation of Delta Capricorni and the conjunction with Venus.

The New Moon in the Old Moon's arm is the waning crescent in the early moring prior to "New" Moon.

Dave Mitsky

January 21, 2007 12:52 AM Forum: Solar System Observing

ALPO Lunar Club Program Question

Posted By Dave Mitsky
Here's an image of the Old Moon in the New Moon's Arms.

http://antwrp.gsfc.nasa.gov/apod/ap020419.html

Dave Mitsky

January 26, 2007 06:53 PM Forum: Eyepieces

University Optics 32mm MK80

Posted By Dave Mitsky
Rob,

A friend of mine owns this eyepiece. It works very well in his rather one-of-a-kind 20" f/10 classical Cassegrain so I assume it should perform similarly in an f/10 SCT.

However, I'm sure that the 32mm MK-80 would exhibit plenty of field edge astigmatism (not coma) when used with your Dob. (What's its f/ratio, BTW?)

Perhaps, you should look at some of the 70 degree AFOV Erfles and modified Erfles, which for some reason or other just aren't called Erfles anymore, in the 30 to 32mm focal lengths as well.

Dave Mitsky

February 7, 2007 09:34 AM Forum: Beginning Astronomy?

Need Help Locating Objects in the Sky

Posted By Dave Mitsky
Here are a few more potential targets: the red carbon star W Orionis in western Orion, the multiple star Sigma Orionis and the nearby triple star Struve 761 southwest of the easternmost belt star Alnitak (Zeta Orionis), NGC 2169 (the "37" Cluster) in northeastern Orion, the very red carbon star R Leporis (Hind's Crimson Star) in Lepus, the open cluster M41 below Sirius in Canis Major, the open cluster M50 in Monoceros, the open cluster NGC 2244 in Monoceros, NGC 2264 (the Christmas Tree Cluster) in Monoceros, the open cluster M93 in Puppis, and the planetary nebula NGC 2392 (the Eskimo Nebula) in Gemini.

http://www.ngc891.com/modules.php?op=modload&name=Stars&file=chart&ra=-4.75&dec=0&zoom=675&w=710&h=475&tirion=0&out.x=12&out.y=13

http://www.astronomical.org/portal/modules/wfsection/index.php?category=1

http://www.hawastsoc.org/deepsky/constellations.html

http://www.nckas.org/carbonstars/

Dave Mitsky

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