SH2-27 (Zeta Ophiuchi Nebula) behind molecular clouds

A 20°×30° view of SH2-27, partially obscured by molecular clouds, is presented. The large emission nebula, also known as the Zeta Ophiuchi Nebula, has an apparent size of about 15°×10° and is ionized by Zeta Ophiuchi, the bright star at the center, located 370 light-years away.

The image was calculated from data of DR0.1 from the Northern Sky Narrowband Survey.

Click on the image to load a high resolution (78 MP) version using a JavaScript viewer.

SH2-27 (Zeta Ophiuchi Nebula) behind molecular clouds in H-alpha, blue continuum and red continuum — False-color composite where Hα (without continuum) is mapped to red, blue continuum (including [OIII] and Hβ emissions) is mapped to green, and red continuum (without Hα but with [SII] emissions) is mapped to blue. Emission nebulae appear reddish, while reflection nebulae range from green to blue. Stars are partially subtracted to make the faint nebulae visible.

Image data

The origin of the data and the equipment are described on the DR0.1 page of the Northern Sky Narrowband Survey and on the instruments page, respectively. Here is some additional image-specific information:

Center position:	RA: 16:28h, DEC: -6:30°
FOV:	30°×20° (RA×DEC, through center)
Orientation:	JavaScript viewer: North is up Above: North is right
Scale:	10 arcsec/pixel (in center at full resolution)
Projection type:	Stereographic