NGC 2174 - Monkey Head Nebula (2017)
NGC 2174 (also known as Monkey Head Nebula) is an H II emission nebula located in the constellation Orion and is associated with the open star cluster NGC 2175. It is thought to be located about 6,400 light-years away from Earth. The nebula may have formed through hierarchical collapse.
There is some equivocation in the use of the identifiers NGC 2174 and NGC 2175. These may apply to the entire nebula, to its brightest knot, or to the star cluster it includes. Burnham's Celestial Handbook lists the entire nebula as 2174/2175 and does not mention the star cluster. The NGC Project (working from the original descriptive notes) assigns NGC 2174 to the prominent knot at J2000 06h 09m 23.7s, +20° 39′ 34″ and NGC 2175 to the entire nebula, and by extension to the star cluster. Simbad uses NGC 2174 for the nebula and NGC 2175 for the star cluster.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: Atik 460M
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal extender: Takahashi QE 1.6x
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP,
Filters: Astrodon 3nm Ha, Astrodon 3nm OIII, Astrodon 3nm SII
Accessories: Robofocus Focuser, ATIK EFW2
Original Resolution: 2080 x 2700
Dates: 10th - 14th Nov. '17
Frames:
Astrodon 3nm Ha 31 x 1200"
Astrodon 3nm OIII 24 x 1200"
Astrodon 3nm SII 29 x 1200"
Integration: 28 Hours
Center (RA, Dec):(92.444, 20.526)
Center (RA, hms):06h 09m 46.589s
Center (Dec, dms):+20° 31' 34.153"
Size:31.1 x 40.3 arcmin
Radius:0.424 deg
Pixel scale: 0.896 arcsec/pixel
Orientation:Up is 173 degrees E of N
There is some equivocation in the use of the identifiers NGC 2174 and NGC 2175. These may apply to the entire nebula, to its brightest knot, or to the star cluster it includes. Burnham's Celestial Handbook lists the entire nebula as 2174/2175 and does not mention the star cluster. The NGC Project (working from the original descriptive notes) assigns NGC 2174 to the prominent knot at J2000 06h 09m 23.7s, +20° 39′ 34″ and NGC 2175 to the entire nebula, and by extension to the star cluster. Simbad uses NGC 2174 for the nebula and NGC 2175 for the star cluster.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: Atik 460M
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal extender: Takahashi QE 1.6x
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP,
Filters: Astrodon 3nm Ha, Astrodon 3nm OIII, Astrodon 3nm SII
Accessories: Robofocus Focuser, ATIK EFW2
Original Resolution: 2080 x 2700
Dates: 10th - 14th Nov. '17
Frames:
Astrodon 3nm Ha 31 x 1200"
Astrodon 3nm OIII 24 x 1200"
Astrodon 3nm SII 29 x 1200"
Integration: 28 Hours
Center (RA, Dec):(92.444, 20.526)
Center (RA, hms):06h 09m 46.589s
Center (Dec, dms):+20° 31' 34.153"
Size:31.1 x 40.3 arcmin
Radius:0.424 deg
Pixel scale: 0.896 arcsec/pixel
Orientation:Up is 173 degrees E of N
Sky Plot
Annotated Image
