Getting plate-solving status, please wait...
Elephant's head nebula in Hydrogen-alpha, 



    
        

            stevebryson

Elephant's head nebula in Hydrogen-alpha

Getting plate-solving status, please wait...
Elephant's head nebula in Hydrogen-alpha, 



    
        

            stevebryson

Elephant's head nebula in Hydrogen-alpha

Technical card

Imaging telescopes or lenses: ED80

Imaging cameras: SBIG ST-8300C

Mounts: Orion Atlas EQ-G

Guiding telescopes or lenses: ED80

Guiding cameras: The Imaging Source DMK 21AF04

Focal reducers: William Optics FF/FR 0.8x Tipo II

Software: photoshop  ·  PixInsight  ·  Nebulosity  ·  Microprojects Equinox Image

Filters: Orion H‑Alpha 7nm

Accessory: Orion Thin OAG


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