Hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  NGC 2174  ·  NGC 2175
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Monkey Head Nebula (NGC 2174) in Orion, 


            Steve Milne
Monkey Head Nebula (NGC 2174) in Orion
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Monkey Head Nebula (NGC 2174) in Orion

Technical card

Imaging telescopes or lenses: Takahashi FSQ106ED

Imaging cameras: QSI 690 WSG-8

Mounts: 10 Micron GM1000HPS

Guiding telescopes or lenses: Takahashi FSQ106ED

Guiding cameras: QSI 690 WSG-8

Software: Sequence Generator Pro  ·  Adobe Photoshop 6 CS  ·  Pixinsight 1.8

Filters: Astrodon OIII 5nm  ·  Astrodon Ha 5nm  ·  Astrodon SII 5nm

Dates:Feb. 21, 2020

Astrodon Ha 5nm: 24x1200" bin 1x1
Astrodon OIII 5nm: 24x1200" bin 1x1
Astrodon SII 5nm: 24x1200" bin 1x1

Integration: 24.0 hours

Avg. Moon age: 27.57 days

Avg. Moon phase: 4.28%

Basic astrometry details

Astrometry.net job: 3268759

RA center: 6h 9' 19"

DEC center: +20° 54' 39"

Pixel scale: 2.095 arcsec/pixel

Orientation: 180.948 degrees

Field radius: 1.168 degrees

Resolution: 2453x3176

Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura


NGC 2174 is a star-forming region around 6,400 light years away in the constellation of Orion. Radiation from the newly formed stars in the centre of the nebula excite surrounding gases, giving rise to an emission nebula in which some observers see the head of a monkey (looking left).

The object in the lower left of the frame is Sharpless 2-247 - another emission nebula located around 7,000 light years away. Sh 2-247 falls within the boundaries of Gemini.

NGC 2174 was photographed between 1 January and 21 February 2020 from a remote imaging rig that is jointly owned and operated by Barry Wilson and me.

Telescope: Takahashi FSQ 106
Camera: QSI 683 WSG
Filters: Astrodon 5nm NB
Mount: 10 Micron GM1000HPS

SII: 24 x 1200s
Ha: 24 x 1200s
OIII: 24 x 1200s

A total of 24 hours exposure.

Data capture: Steve Milne & Barry Wilson
Image processing: Steve Milne