Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  46 Ori)  ·  46 eps Ori  ·  48 Ori  ·  48 sig Ori  ·  50 Ori)  ·  50 zet Ori  ·  Alnilam  ·  Alnitak  ·  B33  ·  Flame Nebula  ·  Horsehead nebula  ·  IC 426  ·  IC 431  ·  IC 432  ·  IC 434  ·  IC 435  ·  LDN 1614  ·  LDN 1620  ·  LDN 1635  ·  LDN 1636  ·  NGC 2023  ·  NGC 2024  ·  Orion  ·  Orion B  ·  Part of the constellation Orion (Ori)  ·  Sh2-277  ·  The star Alnilam (ε Ori  ·  The star Alnitak (ζ Ori  ·  The star σ Ori  ·  VV Ori  ·  And 1 more.
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Horsehead Nebula and surroundings in Orion’s Belt, 



    
        

            Martin Konrat
Powered byPixInsight

Horsehead Nebula and surroundings in Orion’s Belt

Getting plate-solving status, please wait...
Horsehead Nebula and surroundings in Orion’s Belt, 



    
        

            Martin Konrat
Powered byPixInsight

Horsehead Nebula and surroundings in Orion’s Belt

Acquisition details

Dates:
Nov. 15, 2022 ·  Nov. 17, 2022
Frames:
Antlia ALP-T Dual Band 5nm 2": 40×300(3h 20′) (gain: 100.00) -10°C bin 1×1
Optolong UV/IR cut 2": 170×150(7h 5′) (gain: 100.00) -10°C bin 1×1
Integration:
10h 25′
Avg. Moon age:
22.10 days
Avg. Moon phase:
50.49%
Bortle Dark-Sky Scale:
4.00

RA center: 05h38m37s.11

DEC center: -01°5755.6

Pixel scale: 4.378 arcsec/pixel

Orientation: -137.735 degrees

Field radius: 1.955 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 2700x1748

File size: 6.9 MB

Locations: giruá, RS, Brazil

Data source: Backyard

Description

The Horsehead Nebula (Barnard 33) and surroundings. OSC camera. 

This image consists of a composition between a 7h integration image with an UV/IR filter and a 3.5h integration image with a Duo-Narrowband filter to pull some of the faint h-alpha details.

The blending process is always a trial and error quest until the sweet spot Is reached.

For my taste I find it beautiful to make those faint nebulosities around Alnilam to pop up, like IC426 For example.

There’s more to appreciate in this image than the obvious horsehead/flame/ngc2023 trio.

Image taken from november 15th to 17th (2022) in Giruá, south of Brazil. Bortle Scale 4.

Camera: asi2600mc
170 x 150s images with Optolong UV/IR filter
40 x 300s images with Antlia alp-t filter
Askar FRA400 refractor
Zwo AM5 mount.
Processing: Pixinsight, Photoshop.

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