Horsehead Nebula

Horsehead Nebula

In Astrophotography by Matt Shetzer

The Horsehead Nebula in LRGB

Click image for detailed view

The Horsehead Nebula is a beautiful small dark nebula in the constellation of Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion’s Belt, and is part of the much larger Orion molecular cloud complex. It appears within the southern region of the dense dust cloud known as Lynds 1630, along the edge of the much larger, active star-forming H II region called IC 434. The Horsehead Nebula is approximately 1,375 light-years from Earth and is one of the most identifiable nebulae because of its resemblance to a horse’s head.

ObjectHorsehead Nebula
Wiki Link
Other Names contained in imageBarnard 33
Imaging telescopes or lensesTakahashi FSQ -106ED4
Imaging camerasQHY268M
MountsSoftware Bisque Paramount MYT
Focal reducersNone
SoftwareSoftware Bisque The Sky X, N.I.N.A., PHD Lab PHD2, Viking,  PixInsight, Photoshop, Lightroom
FiltersAstrodon LRGB Gen2 E-Series Tru-Balance  36mm unmounted. Chroma Technology Narrowband 3nm Ha, SII, OIII – 36mm Unmounted
AccessoriesMoonlite NightCrawler 35 focuser, Maxdome II, Digital Loggers Pro Switch, Sky Alert Weather Station, Pegagsus Ultimate Powerbox v2, Starlight Xpress filter wheel, Alnitak Flip-Flat
Guiding Telescope or LensesOrion 60mm Guide Scope
Guiding CameraZWO ASI290MM Mini
Imaging Dates11/15/22,11/16/22,11/19/22,11/20/22,11/22/22,11/23/22,11/24/22,11/25/22,11/26/22,12/1/22,12/18/22,12/19/22
FramesLuminance: 67×300″  (5.6h)  Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Red: 55×300″ (4.6h) Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Green: 51×300″ (4.3h) Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Blue:53×300″ (4.4h) Gain 25, Photographic Mode, Temp -25C, Bin 1×1
Ha: 45×600″  (7.5h)  Gain 60, High Gain Mode, Temp -25C, Bin 1×1
Flats20 per Filter
Flat Darks40
Bortle Dark-Sky Scale:2
RA center85.31588382
DEC center-2.329763943
Pixel scale3.76
Resolution6280 x 4210
LocationsSirus 3.5m Observatory, Carbondale Colorado
Data sourceBackyard
Post Processing TechniquesPixInsight to Photoshop to Lightroom
Horsehead Nebula was last modified: January 23rd, 2023 by Matt Shetzer