Sunday, October 21, 2007

Comet LONEOS (C/2007 F1) is still difficult to see

amateur astronomers , comet hunters and potential comet observer awardees

I'd like to see more people trying for our two comet awards. You must be a member of the Astronomical League or a member of a club that has an affiliation to AL.
With the silver award you get a great looking comet award pin and an award certificate suitable for framing.
pin example

Both the silver and gold certificates include beautiful photos of Comet Hal Bopp and Hayutake ( they were graciously provided by the late ASKC member Vic Winters).

I have tried 3 times but have not observed or photographed this supriseing new Comet Loneos.
There are 3 thing reasons Comet Loneos is difficult to view and photograph:
(1) Instead of rising higher in the sky Comet Loneos is going parallel to the horizon. Eventhough it is near south of Arcturus and below still difficult.
(2) eventhough it is around magnitude 6 and may rise to 4, it sets soon after sunset.
(3) the greenish color makes it difficult to view in the starry background compared to like Comet McNaught last January which was gold-white.
Close approach is in a few days. Keep watching and trying.
New pics on spaceweather my friend Tunc from Turkey (great eclipse photographer too).
Keep watching spaceweather, Apod and try to catch it yourself.
If others find it, let me know and cirumstances.
if you can see or photograph this one, you can add it to the 10 comet observations.
Remember 2 can be before 1/1/2001.
Observations and data of 12 for the silver award can be either regular photos, ccd pictures of sketches.
To see a sample of my silver award page and 3 examples, see
? let me know

Dr. Eric Flescher (, Olathe, KS Comet Observers Award Coordinator- Astronomy League/ Astronomical Society of Kansas, KC, MO-Louisburg,KS: Subscribe to (send your email to)
Sometimes are predicatable and appear on a regular schedule. Some like Comet McNaught last January surprised us from out of the "blue." Here is another new mystery comet. Catch it while you can and if you can
It's Comet LONEOS (C/2007 F1).
Last night in Turkey, Tunç Tezel tried the procedure and was rewarded as follows:

Photo details: Canon EOS 5D, 400 mm lens, f/5.6, ISO 3200, 30s.
The bush in the foreground highlights one problem with this pretty green comet: it is very close to the horizon and sets soon after nightfall. This makes the comet a potentially challenging target.
A backyard telescope reveals much more than a camera alone. P-M Hedén of Vallentuna, Sweden, took this picture

on October 18th using his 3-inch refractor. "This is a very nice comet," he says. "I estimate its magnitude as +6.5." Comet LONEOS will brighten further perhaps to 4th magnitude on Oct 29th when it approaches the sun almost as close as the planet Mercury. Stay tuned for updates.
more images: from Peter Heinzen near Raron, Switzerland
LONEOS links: sky map, ephemeris, 3D orbit

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