Presenting a project continued from last year. CTB1 or Abell 85, the Garlic Pop Nebula!

CTB 1 is a supernova remnant in the Cassiopeia constellation. It was originally cataloged by George Abell as a planetary nebula. Later discoveries revealed that CTB 1 is actually a very faint supernova remnant, about the size of the full moon. It's approximately 10,000 light-years from Earth and is approximately 100 light years in diameter.

The hydrogen-alpha shell is extremely faint, and was just barely visible in a 5-minute sub-exposure from a mono camera. Being in Bortle 7 didn't help either. Revealing the full circular shape was definitely going to be a challenge, so I spent a few nights on this object for a total exposure time of 60 hours (Including 10 hrs of OSC narrowband data from last year).

Acquisition Details:

Telescope: @oriontelescopes EON 115mm EDT

Camera : @zwo_astronomy_cameras 294MM Pro/294MC Pro

Mount: @skywatcherusa EQ6R pro

Filters: @optolongfilter Lextreme, Astronomik SHO 7nm filters

@svbonyastronomy 60mm guidescope

Total Exposure: 60 hours

The Heart Nebula, IC805, imaged in Hubble Palette. This is an emission nebula and star forming region of almost 200 light-years across, located within the Perseus Arm of our Milky Way galaxy, about 7500 light-years away in constellation Cassiopeia.

In the center is Melotte 15, an open cluster of stars, which contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass. Also visible are massive cosmic clouds sculpted by stellar winds and radiation from the massive hot stars of the Melotte 15

One interesting find was a planetary nebula, WeBo1, just north of the heart! The nebula is a thin ring of glowing gas that surrounds a binary star system.

Acquisition Details:

Scope: RedCat 51

Mount: Explore Scientific iExos 100

Imaging Camera: ASI183MMPro

Filters: Astronomik 7nm SHO

Bortle 7

Total Integrated Exposure: 28 hrs 

M31 - The Andromeda galaxy at 2.5 million light years away from us!

Satellite galaxies, M110 and M32, are clearly visible. While editing this image, I found a tiny smudge directly below M110. When I looked it up on Simbad, I saw that it was catalogued as UGC 394, a galaxy that 267 Million Light years away from us! When photons from these galaxies, captured by my camera, started their journey, Earth was in the Mesozoic era, the age of the reptiles! 

Shooting the Elephants Trunk nebula second time this season. Yes, I cannot get enough of this target.

3000 light years away from us, the Elephant's Trunk Nebula winds through the emission nebula and young star cluster complex IC 1396, in the high and far off constellation of Cepheus. Of course, the cosmic elephant's trunk is over 20 light-years long. This composite was recorded through narrow band filters that transmit the light from ionized hydrogen, sulfur, and oxygen atoms in the region. The resulting image highlights the bright swept-back ridges that outline pockets of cool interstellar dust and gas. Such embedded, dark, tendril-shaped clouds contain the raw material for star formation and hide protostars within the obscuring cosmic dust.

Acquisition Details:

Scope: Orion 115mm EDT

Mount: EQ6-R Pro

Imaging Camera: ASI294MMPro

Filters: Astronomik 7nm SHO

Bortle 7

Total Integrated Exposure: 23 hrs 

100 X 300s Ha96 X 300s Oiii81 X 300s SII