Object: NGC 2174 aka The Monkey Head Nebula, is an emission nebula located about 6,400 light-years away in the constellation Orion.
Taken: March 31, April 1, April 2, 2021
Telescope: Astro-Tech 14” RC with Starizona Apex-ED L 0.65x focal reducer
Mount: Paramount ME II
Camera: ZWO ASI2600MM-Pro (cooled to 0C; Gain 100) Bin 1×1.
Guiding: ZWO ASI290MM-Mini with ZWO M68 Off-Axis Guider (OAG)
Rotator: Moonlite Nitecrawler
Filters used: Chroma Ha, OIII and SII 3nm narrowband filters with a ZWO 7-position Electronic Filter Wheel (EFW)
Exposures: 40×180 seconds Ha; 40×180 seconds OIII; 55×180 seconds SII for a total exposure time of 6.8 hours; calibrated with 40 dark frames, 40 flat frames with 40 dark-flats and 100 bias frames.
Seeing Conditions:
Image capture and telescope control: Sequence Generator Pro and TheSkyX Pro
Processed with PixInsight, Photoshop CC 2022