Owl Neb­ula (M97) in Ursa Major

The Owl Neb­ula (NGC 3587) in Ursa Major is the 97th object lis­ted in Messiers cata­log. It is one of the more com­plex plan­et­ary neb­u­lae. Its appear­ance has been inter­preted as that of a cyl­indric­al tor­us shell, viewed oblique, so that the pro­jec­ted mat­ter-poor ends of the cyl­in­der cor­res­pond to the owl’s yes. This shell is envel­oped by a faint­er neb­ula of lower ion­iz­a­tion. Its dis­tance is estim­ated about 2000 lightyears.

This image is a com­bin­a­tion of broad­band- (LRGB) and nar­row­band- (Ha, OIII) fil­ters to reveal the faint, out­er shell and the details with­in the neb­ula. North is to the right.

[descrip­tion from SEDS]

Details

Tele­scope:
Mount:
Cam­era:
Fil­ters:
Expos­ure:
Loc­a­tion:
Author:
RCOS 14.5″ f/​8
ASA DDM85
Apo­gee U16M
Astro­don Gen2
HaOIIILRGB 810:870:480:120:80:80 min.
ROSA Remote Obser­vat­or­ies South­ern Alps
© Mar­tin Ruster­holz, Astrophotographer

Find­er Chart Owl Neb­ula (M97) in Ursa Major

Owl Nebula Sky Chart - Astrophotography Martin Rusterholz

Image cre­ated by Skychart