The Bubble Nebula, designated NGC 7635, is a stunning celestial wonder located in the constellation Cassiopeia. This breathtaking emission nebula is a region of active star formation, where massive stars at the center emit intense ultraviolet radiation, causing the surrounding gas to glow brilliantly. What makes the Bubble Nebula particularly captivating is its spherical, bubble-like structure, created by the powerful stellar winds and radiation from a central massive star known as BD+60°2522. This stellar wind compresses the surrounding interstellar material, sculpting the gas and dust into a shell-like form. The Bubble Nebula is a visual testament to the dynamic interplay between massive stars and the cosmos, offering astronomers a glimpse into the ongoing birth and evolution of stars in our Milky Way galaxy.

Image Description and Details : After a few months off while i had planetary equipment on the mount. The RC is now back on the mount for some deep sky imaging again. Starting with the Bubble nebula or NGC 7635. 8000 light years away in the constellation Cassiopeia. Captured from my Bortle 5 backgarden in west sussex over many nights. I also added the data i captured back in 2021, as it's a target i find fascinating and keep returning to. Capture details:118x 600 Ha. 63x 600 oiii and 58x 600 sii.Equipment details: EQ6-rASI 1600mmBaader 1.25" narrowband filtersOrion RC 8"
Copyright: Carl Gough

The LOBSTER CLAW (SH2-157) & BUBBLE NEBULA (SH2-162), or Sharpless 157 (Sh2-157), is an emission nebula, around 12,000 light-years from Earth between the Cassiopeia and Cepheus constellations. There are several interesting features in this nebula rich region, including the Bubble Nebula, NGC 7635 (or Sh2-162), a HII region emission nebula which lies in a surrounding shell, and excited by the star SAO 20575. Also in the frame are the Wolf-Rayet massive star WR 157, two large open clusters of stars NGC 7510 and NGC 7654, and the nebula NGC 7538, which is home to the largest yet discovered protostar, 300 times the size of our solar system! This image was captured over the span of a week totaling 14.2 hours in narrowband. Each filter was mapped to the Hubble Palette. OTA: William Optics GT81 using 0.8x Flat6A-81 reducerMount: Celestron CGX-LCamera: ZWO ASI294MM ProGain: 100 Night 13nm Sii 22x600s3.7 hours Night 27nm Oiii 30x600s5 hours Night 33nm Ha 22x900s5.5 hours 14.2 hours total Cooling Temperature: -10 CelsiusAuto-guiding: ZWO ASI174MM Mini and ZWO M48 OAGControl: ZWO ASIAIR Pro Flagstaff, AZ - Bortle 4 skies Calibrated in Astro Pixel Processor⁣ with darks and flatsProcessed in Pixinsight and Lightroom

Copyright: Copyright: Drew Evans

Image Description and Details :

"Auriga" private Observatory - Russia - Moscow Region - Makeikha
Photo shooting: August - 14, 17, 18, 19, 20, 21, 22; September: 06, 11, 12; October - 10
Accumulation: 42.2 hours
Baader Planetarium H-alpha 1.25" CCD 7 nm: 121x600" bin 1x1
Baader Planetarium OIII 1.25" CCD 8.5nm: 71x600" bin 1x1
Baader Planetarium SII 1.25 CCD 8nm: 47x600" bin 1x1
Astronomik RGB 1.25" Type IIc: 47x180" bin 1x1
Telescope: SkyWatcher Quattro 8S
Shooting Camera: ZWO Optical ASI 1600-MM COOLED
Mount: SkyWatcher EQ 8 PRO Mount
Telescope Guide: SkyWatcher EvoGuide 50ED
Guide camera: ZWO ASI ZWO 120mm mini
Focus Reducer: Tele Vue Paracorr Type-2


Copyright: Sviatoslav Lips

Planetary nebula KjPn 8 (PN G112.5-00.1, K3-89) and Bubble Nebula (NGC7635) in the constellation Cassiopeia.KjPn 8 (PN G112.5-00.1, K3-89) is a bipolar planetary nebula which was discovered by M.A.Kazaryan and Eh.S.Parsamyan in 1971 and independently by Kohoutek in 1972. It is one of the strangest and possibly most unique planetary nebulae in the sky. In my image, we see it on the left side of the frame below the center. Planetary nebula consists of a compact red core (apparent size is about 3–4 arcsec in diameter) surounded by a huge bipolar lobe structure that measures 12x5 arcminutes. There is the possibility that the two separate structures are two separate planetary nebulae formed from both members of a binary star system moving onto the planetary nebula phase within a few thousand years of each other.

This image taken over several nights in November 2020.R-channel - 20 x 150 sec. bin 1x1;G-channel - 20 x 150 sec. bin 1x1;B-channel - 20 x 150 sec. bin 1x1;Ha- 46 x 600 sec. bin 2x2;OIII- 74 x 600 sec. bin 2x2.Total integration time about 22:30 hours.

My setup: Telescope 8" Celestron Schmidt-Cassegrain (SCT) CPC800 GPS (XLT) on the equatorial wedge, focal reducer Starizona Night Owl 0.4х, Feq=864mm, camera Starlight Xpress Trius SX694, SX mini filter wheel, filters Astrodon LRGB E-series gen.2, Astrodon Ha 5nm, Astrodon OIII 3nm.Capture and processing software: MaxIm DL6, PHD2, PixInsight, StarTools, Photoshop CC, Zoner photo studio 14.North at the top.

Copyright: Boris Vladimirovich