Elephant's head nebula in Hydrogen-alpha, 



    
        

            stevebryson

Elephant's head nebula in Hydrogen-alpha

Elephant's head nebula in Hydrogen-alpha, 



    
        

            stevebryson

Elephant's head nebula in Hydrogen-alpha

Equipment

Imaging Telescopes Or Lenses
ED80
Imaging Cameras
SBIG ST-8300C
Mounts
Orion Atlas EQ-G
Filters
Orion H‑Alpha 7nm
Accessories
Orion Thin OAG · William Optics FF/FR 0.8x Tipo II
Software
PixInsight · photoshop · Nebulosity · Microprojects Equinox Image
Guiding Telescopes Or Lenses
ED80
Guiding Cameras
The Imaging Source DMK 21AF04

Acquisition details

Dates:
Oct. 14, 2013
Frames:
Orion H‑Alpha 7nm: 21x1800" (10h 30') -15C bin 2x2
Integration:
10h 30'
Avg. Moon age:
10.11 days
Avg. Moon phase:
77.41%
Bortle Dark-Sky Scale:
5.00

Basic astrometry details

Astrometry.net job: 88993

Resolution: 1578x1219

Locations: Home, San Rafael, California, United States

Data source: Backyard

Description

This far north, a 30-minute exposure is enough for the stars to show a little image rotation due to the off-axis guiding.

Comments

Histogram

Elephant's head nebula in Hydrogen-alpha, 



    
        

            stevebryson