Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1848  ·  IC 1871
Getting plate-solving status, please wait...
The Soul Nebula (Westerhout 5) in SHO, 


            Douglas J Struble
The Soul Nebula (Westerhout 5) in SHO
Powered byPixInsight

The Soul Nebula (Westerhout 5) in SHO

Getting plate-solving status, please wait...
The Soul Nebula (Westerhout 5) in SHO, 


            Douglas J Struble
The Soul Nebula (Westerhout 5) in SHO
Powered byPixInsight

The Soul Nebula (Westerhout 5) in SHO


Imaging Telescopes Or Lenses
Stellarvue SV70T
Imaging Cameras
ZWO ASI1600MM-Cool
Orion Atlas Pro AZ/EQ-G
Astronomik SII 1.25" 6nm · Astrodon Ha 5nm · Astrodon OIII 3nm · Astronomik Ha 6nm 1.25'' · Astrodon SII 3nm
ZWO 8x 1.25" Filter Wheel (EFW) · QHYCCD PoleMaster · MoonLite CFL 2.5" Large Format Focuser · Stellarvue SV70T Focal Reducer
PHD2 · Sequence Generator Pro · PixInsight · Photoshop CS5 · SkySafari Pro
Guiding Telescopes Or Lenses
Stellarvue 50mm Guidescope
Guiding Cameras

Acquisition details

Oct. 10, 2017 ·  Oct. 15, 2017 ·  Oct. 17, 2017 ·  Dec. 17, 2019 ·  Dec. 18, 2019 ·  Dec. 21, 2019
Astrodon Ha 5nm: 131x240" (8h 44') (gain: 139.00) -20°C bin 1x1
Astrodon OIII 3nm: 114x240" (7h 36') (gain: 139.00) -20°C bin 1x1
Astrodon OIII 3nm: 229x120" (7h 38') (gain: 200.00) -20°C bin 1x1
Astrodon SII 3nm: 65x240" (4h 20') (gain: 139.00) -20°C bin 1x1
Astronomik Ha 6nm 1.25'': 289x120" (9h 38') (gain: 200.00) -20°C bin 1x1
Astronomik SII 1.25" 6nm: 266x120" (8h 52') (gain: 200.00) -20°C bin 1x1
46h 48'
Avg. Moon age:
23.13 days
Avg. Moon phase:
Bortle Dark-Sky Scale:

Basic astrometry details

Astrometry.net job: 3251426

RA center: 02h54m51s.6

DEC center: +60°2338

Pixel scale: 2.319 arcsec/pixel

Orientation: 187.755 degrees

Field radius: 1.582 degrees

Resolution: 3977x2885

Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard


I combined data from 2017 with data I just captured over the past month. The goal was to go even deeper on the fainter nebulosity. That is also why I kept it a bit light. I didn't want to burry the fainter structure. This past fall I have worked on two Sharpless objects just off the Soul Nebula; Sh2-201 and Sh2-198, which are in the upper left and on the right side of my image:



The Soul Nebula (Westerhout 5) is an emission nebula in the constellation of Cassiopeia. It forms a well known pair with the nearby Heart nebula (only 2.5 degrees) called the "Heart and Soul" nebula. These nebula are in fact connected via a bridge of gas. The nebula is also known as the Embryo Nebula or IC 1848, the Index Catalogue designation of an open cluster contained within the nebula.

With an apparent size of some 150 arc minutes, the nebula's distance of 7,500 light years means it has a physical size of around 100 light years. When the Heart nebula is included, the Heart and Soul nebula span around 300 light years of space. The nebula houses a few open star clusters, their designations being CR 34, CR 632, CR 634 and IC 1848 which is also sometimes used to refer to the nebula itself. Also located near the nebula are three small emission nebulae, with designations IC 1871, IC 670, IC 669. Stellar winds from stars within the nebula are producing pillars of gas and dust that point towards the centre of the nebula. Stars are also located at their tips. These pillars are thought to be around 10 light years long. A large radio source is located in the nebulae. Designated Westerhout 5 (W5), it appears four times greater than the Moon. The appearance of the nebula in the radio portion of the electromagnetic spectrum follows a similar pattern to the optical.


Sky plot

Sky plot


The Soul Nebula (Westerhout 5) in SHO, 


            Douglas J Struble