Object: Sharpless 2-132 is a very faint emission nebula on the Cepheus/Lacerta border. The nebula is about 10400 light-years away in the Perseus Arm of the Milky Way galaxy. The stars responsible for ionizing its gases are very hot and massive; in particular, two Wolf-Rayet stars blowing ionized gas, molecules, and dust with a velocity of about 50 km/s.
This image shows the lion’s mane.
This was imaged in narrowband to capture Ha, OIII, and SII emissions from the nebula and processed in the Hubble palette.
Taken: September 5, 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)
Focuser: Moonlite Nitecrawler
Rotator: Moonlite Nitecrawler
Filters used: Chroma Ha, OIII and SII 3nm filters with a ZWO 7-position Electronic Filter Wheel (EFW)
Exposures: 18×300 seconds Ha; 24×300 seconds OIII; and 20×300 seconds SII for a total exposure time of 5.167 hours; calibrated with 40 dark frames, 40 flat frames with 40 dark-flats.
Seeing Conditions:
Image capture and telescope control: Sequence Generator Pro and TheSkyX Pro with a SkyShed POD MAX observatory.
Processed with PixInsight, Photoshop CC 2021