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

Horsehead and Flame 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)

and the Flame Nebula NGC 2024 on the lower right of the image

Image

Date

2011-09-26 (OTSP), 2014-10-26 (CRO)

Place

Okie-Tex Star Party, Cheddar Ranch Observatory

Exposure Data

HaRGB 450:90:90:90 mins @ -15C

Ha 9x30 and 12x15, R 18x5, G 18x5, B 18x5 min

Notes

All filters binned 1x1, created pseudo luminance frame from RGB

Equipment

Optics

Takahashi FSQ-106N

Focal Length

530 mm @f/5.0

Mount

Takahashi NJP

Camera

SBIG ST-10XME

Focuser

RoboFocus

Filters

CFW-10, Astrodon CRGB, Ha

Software

TheSkyX, FocusMax5, CCDAutopilot5, PixInsight, PhotoShop CS6

Reprocessed on 07/28/2023