SH2 Nebulae

This image is a composite of four emission nebulae, clouds of star-forming gas and dust that are illuminated by the newborn stars they host. Each of them are included in the Sharpless Catalog of emission nebulae compiled by Stewart Sharpless in the 1950's. The individual images were captured over a period of four clear nights in Seattle, Washington, using an Ha narrowband filter to suppress light pollution by only admitting light at wavelengths emitted by the nebulae.

 

From top-left to bottom-right, the nebulae and integration times are as follows:

SH2-86 in Vulpecula (200 mins)

SH2-129 in Cepheus (235 mins)

SH2-126 in Lacerta (250 mins)

SH2-155 in Cepheus (195 mins)

 

Telescope: Tele Vue 76mm

Camera: QSI 683wsg

Filter: Astrodon Ha 5nm

Mount: iOptron iEQ45 Pro

Processing Software: PixInsight 1.8. Composited using Adobe Photoshop.

 

 

Done