Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  The star 9 Cas
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From little Rosette nebula to SNR G116.9+00.1, AstroEspi
From little Rosette nebula to SNR G116.9+00.1
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From little Rosette nebula to SNR G116.9+00.1

Getting plate-solving status, please wait...
From little Rosette nebula to SNR G116.9+00.1, AstroEspi
From little Rosette nebula to SNR G116.9+00.1
Powered byPixInsight

From little Rosette nebula to SNR G116.9+00.1

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Description

The area from little Rosette nebula to the supernova remnant SNR G116.9+00.1 in Cassiopea has a lot of H-alpha and SII light, with very little contribution of OIII at the core of the nebula and top of the SNR. 

This image is a two-panel mosaic, each one 7h of S, H and O = 42h total narrowband integration, plus about 15 min for R, G and B in each panel.

Narrowband frames: 180s, gain 200, -15ºC
RGB frames: 60s, gain 139, 15ºC

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From little Rosette nebula to SNR G116.9+00.1, AstroEspi