Russell Croman Astrophotography  



The Eagle and Swan Nebulas
in Elemental Colors

About This Photograph

The Eagle and Swan nebulae are two star-forming regions straddling the constellations Sagittarius and Serpens Cauda (the "Tail of the Serpent"). In this image, a special filters were used to isolate the light emitted by sulphur, hydrogen and oxygen atoms, which are energized by the bright young stars within the nebulae. Red color represents sulphur emission, green indicates hydrogen, and blue signifies oxygen.


Technical Details

Optics:Takahashi FSQ-106N.
Mount:Astro-Physics AP1200GTO.
Filters:Custom Scientific 5nm Sulphur-II, H-alpha, Oxygen-III.
Dates/Times:18-19 June 2004.
Location:Canyon of the Eagles park, Burnet, Texas.
Exposure Details:SII:Ha:OIII = 105:240:120 minutes (15-minute exposures).


Publication Data for this Photograph

Date Publication Type
2006-11-00 The NewAstro Zone System for Astro Imaging,
p. 211