NGC 2174

About image

NGC 2174 is an emission nebula located in the constellation Orion, associated with the open star cluster NGC 2175.
It is thought to be located about 6,400 light-years away from Earth.
This nebula is also called “Monkey Head Nebula”, but it is necessary a bit of fantasy to see this head in the nebula shape.
The image was obtained from my home terrace in severe conditions due to light pollution and sky “foggy” for high humidity, so long total integration was needed.

Technical data
Optic         Tecnosky Apo refractor LT 130-910 with Riccardi reducer 0.75x (focal lenght 692mm, f/5.3)
Mount       Skywatcher EQ8
Camera                      Atik 4000 with Starlight Xpress external filter wheel 5 positions
Filters                         Baader 50mm unmounted RGB
Guiding system         Artesky Ultraguide 70mm 
Exposure details    R 7x300" bin1 -20C

         G 7x300" bin1 -20C
            B 7x300" bin1 -20C

                                   Ha 28x900" bin1 -25C
         OIII 19x900" bin1 -20C + 6x900" bin1 -25C

         SII 25x900" bin1 -25C                                           

Total integration       21h15'
Acquisition                Voyager, PHD2
Processing                Pixinsight 1.8, Photoshop CS5, StarXTerminator, Topaz Denoise
SQM-L                       18.2    
Location                    Rescaldina (Italy), home terrace
Date                          5/30 November, 6/12/13 December 2021

© Roberto Marinoni 2019 - All rights reserved