Jellyfish amid the seaweed (OR; Fremont Peak Jun 19, 2004)

by Richard Crisp

Clear and great seeing. Classic Peak weather: marine layer about 500' below. Coolish NW breeze about 8-12 knots.

Very clear skies, very steady stars.

I was the only one up there except for the Public Night at the Observatory.

On to the Jellyfish amid the seaweed:

That seems to describe this image of the Crescent Nebula (NGC6888) with a portion of IC1318. It gets the strange appearance by the use of [SII] for Red, Ha for Green and [OIII] for Blue. That is the same as the Hubble's "Pillars Palette".

I shot this with my ST10XME mounted on my FCT76 with Tak focal reducer (f/4.5). I took five exposures of 10 minutes through each of the 3nm FWHM filters. I used a separate guidescope and guide camera.

http://www.narrowbandimaging.com/ic1318_crescent_page.

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Posted on sf-bay-tac Jun 20, 2004 08:30:05 PT
Converted by report.pm 1.2 Jan 01, 2005 11:54:30 PT