Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 97  ·  NGC 3587  ·  Owl Nebula  ·  PGC 2489233  ·  PGC 2490291  ·  PGC 2490640  ·  PGC 34279  ·  PK148+57.1
Getting plate-solving status, please wait...
A Big Owl with a Halo, 



    
        

            Peter Goodhew
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Getting plate-solving status, please wait...
A Big Owl with a Halo, 



    
        

            Peter Goodhew
Powered byPixInsight

Acquisition details

Frames:
Astrodon 5nm H-Alpha filter: 17×1200(5h 40′) bin 1×1
Astrodon 5nm H-Alpha filter: 128×300(10h 40′) bin 1×1
Astrodon 5nm H-Alpha filter: 25×900(6h 15′) bin 1×1
Astrodon Blue: 12×300(1h) bin 1×1
Astrodon Lum: 39×300(3h 15′) bin 1×1
Astrodon OIII 3 nm: 20×1200(6h 40′) bin 1×1
Astrodon OIII 3 nm: 51×900(12h 45′) bin 1×1
Astrodon Red: 16×300(1h 20′) bin 1×1
Green: 16×300(1h 20′) bin 1×1
Integration:
48h 55′

RA center: 11h14m46s.613

DEC center: +55°0113.35

Pixel scale: 0.530 arcsec/pixel

Orientation: -10.514 degrees

Field radius: 0.188 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 2125x1419

File size: 707.7 KB

Locations: e-Eye, Fregenal de la Sierra, Extramadura, Spain; Home Observatory, London, United Kingdom

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

Going deep with Messier 97 - The Owl Nebula. I was pleased to be able to tease out some of the structure of the faint outer OIII halo - especially as most of the OIII data was captured from my Bortle 8 sky in London because Spain has been clouded out for the past month.

Comments

Sky plot

Sky plot

Histogram

A Big Owl with a Halo, 



    
        

            Peter Goodhew

In these public groups

Entre Encinas y Estrellas (e-EyE)