Russell Croman Astrophotography  



The Bubble Nebula
in Elemental Colors


Technical Details

Optics:20" f/8 RCOS Ritchey-Chrétien Cassegrain w/ RCOS Field Corrector
Camera:SBIG STL-11000M, FLI CFW-7
Mount:Software Bisque Paramount ME
Filters:Custom Scientific 5nm [SII], Hα, [OIII]
Dates/Times:12-17 October 2005
Location:Dimension Point Observatory, Mayhill, New Mexico
Exposure Details:[S II]:Hα:[O III] = 4:11:3 hours (one-hour individual exposures)
Acquisition:MaxIm DL/CCD 4, TheSky6, CCDAutoPilot2
Processing:MaxIm DL/CCD 4, Photoshop CS2
Processing:[S II], Hα, and [O III] mapped to red, green, and blue, respectively. Hα used as luminance.


Publication Data for this Photograph

Date Publication Type
2005-11-07 NASA's Astronomy Picture of the Day Web Site
2006-11-00 The NewAstro Zone System for Astro Imaging,
p. 212