All Images Copyright Rod Gallagher                                      Click on image to see full size

Horsehead Nebula

Object

Type

Dark Nebula and Diffuse Nebula

Constellation

Orion

Distance

1,375 light years

Magnitude

6.8

Size

8 x 6 arc-min

Notes

The Horsehead Nebula is a dark nebula (Barnard 33) obscuring the brighter diffuse nebula IC434

Also visible in this image is bright reflection nebula NGC 2023 (to the lower left of the Horsehead)

Image

Date

2007-10-09

Place

Okie-Tex Star Party

Exposure Data

HaCRGB 60:110:60:60:80 min @ -15C

Ha 6x10, Clear 11x10, R 6x10, G 6x10, B 8x10 min

Notes

All filters binned 1x1

Equipment

Optics

Takahashi TOA-150

Focal Length

1100 mm @f/7.3

Mount

Takahashi NJP

Camera

SBIG ST-10XME

Focuser

RoboFocus

Filters

CFW-10, Astrodon CRGB, Ha

Software

TheSky6, FocusMax, CCDAutopilot3, PixInsight, PhotoShop CS6

Reprocessed on 07/28/2023