Heart and Soul in Ha and [OIII]

by Richard Crisp

this is work in progress.

I have been wanting to shoot a tricolor narrowband IC1805/IC1848 widefield for some time and last night actually got started on it.

I shot Halpha and [OIII] last night, taking 3.5 hours worth before turning in.

This is a pseudo-true color image, as I blended a bit of Halpha into the [OIII] to approximate a blue channel that is comprised primarily of [OIII] and Hbeta.

I used Ha for Red, [OIII] for Green and the combo of [OIII] and 10% of the Halpha for Blue

I hope to take more of each and [SII] tonight, weather permitting.

http://www.narrowbandimaging.com/IC1805_200mm_6303_hao3o3_page.htm

I used my Pentax 200mm medium format lens at f/4 connected to my IMG6303 camera.

Subexposures were a half hour each: took 3 x 30 minutes for Halpha and 4 x 30 minutes for [OIII]

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Posted on sf-bay-tac Aug 06, 2005 10:00:50 PT
Converted by report.pm 1.2 Mar 07, 2006 17:39:40 PT