Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)
Getting plate-solving status, please wait...
HDW2 and a mini ring nebula, snakagawa
HDW2 and a mini ring nebula
Powered byPixInsight

HDW2 and a mini ring nebula

Getting plate-solving status, please wait...
HDW2 and a mini ring nebula, snakagawa
HDW2 and a mini ring nebula
Powered byPixInsight

HDW2 and a mini ring nebula

Equipment

Loading...

Acquisition details

Loading...

Description

While I was re-processing my old data for HDW2 (Hartl-Dengl-Weinberger 2) "Bearclaw nebula" from 2017, I noticed there is a tiny ring nebula (Not that big, ring-shaped Ha halo around HDW2) in the neighborhood. I don't know if this is catalogued. (Please let me know if it is.), so I am uploading the image (again) with an insert. 

C8+ Hyperstar 3 with an aperture mask (stopped down to F/3). Atik 460ex mono. Astrodon 5nm filters. 
Ha: 10 min x 65
Oiii: 10 min x 46
Sii: 10 min x 19

Comments

Sky plot

Sky plot

Histogram

HDW2 and a mini ring nebula, snakagawa