Image of the day

Captured by
RICHARD COFER

VdB 141 Ghost Nebula

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Posts Made By: Kevin Brennan

June 21, 2006 09:24 PM Forum: Solar System Observing

Red Jr Spotted?

Posted By Kevin Brennan
No, I tried last nite at about 2AM UT, JUN 21, which probably wasn't the best time as they were so close. The seeing wasn't very good though but my refractor "cuts" through that pretty good. i could make outsome festoons and the GRS, but no Jr.

I was specifically looking last nite to see if there was a merger between JR, and GRS.

Kevin

July 22, 2006 12:28 AM Forum: Home Observatories

Observatory/Pier Project

Posted By Kevin Brennan
Good and bad news on the dig. Ran into an irrigation line so had to move it a bit but no rocks and no power which saved the day. Unlike some of the jackhammer stories I read recently.

48" depth

July 25, 2006 11:08 PM Forum: CCD Imaging and Processing/Deep Sky

First Light SXV-H16 - Cocoon Nebula and surrounds

Posted By Kevin Brennan
Great shot Rick. Looks like it will be a great camera.

kevin
http://astronomy.darkhorizons.org

August 8, 2006 11:45 PM Forum: Landscape Photography

Western Hike & Roadtrip

Posted By Kevin Brennan
Columbia gorge area. I as waiting for a unicorn to come up and drink from this one.

August 14, 2006 04:35 PM Forum: Landscape Photography

Stromboli Volcano

Posted By Kevin Brennan
neat shot Bob.

I suppose those are houses of some mighty brave and slightly dumb folks on the lower right?

Boy the lighting of the back of the boat was nice. Water really blue.

Kevin


August 15, 2006 12:14 AM Forum: Insects - Flowers and Other Small Stuff - Photos

Cleoma hassleriana

Posted By Kevin Brennan
Neat shot, nice and crisp. Haven't heard of that plant/flower before.

Kevin

August 15, 2006 10:29 PM Forum: Insects - Flowers and Other Small Stuff - Photos

Practicing safe pollination

Posted By Kevin Brennan
Boy, that's sharp!

Kevin

August 15, 2006 10:38 PM Forum: Takahashi

Mewlon's airy disk discrepancy

Posted By Kevin Brennan
What do you mean by "airy disc patterns"? If you are referring to the fresnel rings that you see inside and outside of focus, it is my opinion that these will never be exactly the same in a compound telescope or practically any other for that matter, except on the most steady of nites. On one side of focus you see the atmosphere or jet stream or something whipping by.

What you look for is that the airy disc is the same size, and you see the same size shadow of the secondary at the same point on both sides of focus.

Kevin

August 15, 2006 10:51 PM Forum: Deep Sky Observing

Is seeing important for the deep-sky observer?

Posted By Kevin Brennan
I have found seeing is always important and great to have. It is important in globulars, PN. I have done alot of deep sky observing at the limit of my equipment and find that detecting faint objects and detail is seeing related although I think transparency is probably just a shade more important. Details in galaxies very seeing dependant. Several of the objects I have chased have been seeing dependent.

Kevin

August 24, 2006 10:23 PM Forum: Landscape Photography

Watcher in the Woods

Posted By Kevin Brennan
Neat. Looks a tad like a caricature of GW.

KB

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