Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
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SH2-129 and OU4 aka Flying Bat & Squid Nebulae, 



    
        

            Tommy Lease
SH2-129 and OU4 aka Flying Bat & Squid Nebulae
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SH2-129 and OU4 aka Flying Bat & Squid Nebulae

Revision title: My First APOD October 12th 2022

Getting plate-solving status, please wait...
SH2-129 and OU4 aka Flying Bat & Squid Nebulae, 



    
        

            Tommy Lease
SH2-129 and OU4 aka Flying Bat & Squid Nebulae
Powered byPixInsight

SH2-129 and OU4 aka Flying Bat & Squid Nebulae

Revision title: My First APOD October 12th 2022

Acquisition details

Dates:
Oct. 4, 2022
Frames:
360×300(30h)
Integration:
30h
Avg. Moon age:
9.00 days
Avg. Moon phase:
66.89%

Basic astrometry details

Astrometry.net job: 6668179

RA center: 21h11m18s.2

DEC center: +59°5356

Pixel scale: 5.678 arcsec/pixel

Orientation: 307.804 degrees

Field radius: 1.692 degrees

Resolution: 1897x1002

File size: 1.2 MB

Locations: Colorado, Parker, CO, United States; Parker, Parker, CO, United States; Bortle 5, Parker, CO, United States

Data source: Backyard

Description

SH2-129 and OU4 aka Flying Bat & Squid Nebulae in HOO and RGB stars. This is my largest project to date with a total of 30 hrs of total integration time. It still needs more OIII, but my weather isn't cooperating. I may revisit this one at a later date, but here's what I've got! 

Explanation: The Squid Nebula's alluring bipolar shape is distinguished here by the telltale blue-green emission from doubly ionized oxygen atoms. Though apparently completely surrounded by the reddish hydrogen emission region Sh2-129, the true distance and nature of the Squid Nebula have been difficult to determine. Still, a more recent investigation suggests Ou4 really does lie within Sh2-129 some 2,300 light-years away. Consistent with that scenario, Ou4 would represent a spectacular outflow driven by HR8119, a triple system of hot, massive stars seen near the center of the nebula. The truly giant Squid Nebula would physically be nearly 50 light-years across. https://science.nasa.gov/ou4-giant-squid-flying-bat

Equipment: 
ASI2600MM-Pro
Antlia 36mm RGB, 3nm SHO filters
Orion 8" f/4 newt
SW Quattro CC
EQ6R-Pro

Image Details: 
Ha-122x300s, gain 100, -10c (10 hrs)
OIII-228x300s, gain 100, -10c (19 hrs)
R-20x60s, gain 100, -10c
G- 20x60s, gain 100, -10c
B- 20x60s, gain 100, -10c (1 hr)
Total integration: 30 hrs

Acquired in NINA, Processed in Pixinsight and Photoshop

Comments

Revisions

  • SH2-129 and OU4 aka Flying Bat & Squid Nebulae, 



    
        

            Tommy Lease
    Original
  • Final
    SH2-129 and OU4 aka Flying Bat & Squid Nebulae, 



    
        

            Tommy Lease
    C

C

Title: My First APOD October 12th 2022

Description: I forgot to share that this image won APOD! This was my first APOD, so I was very happy when this was announced!

Uploaded: ...

Sky plot

Sky plot

Histogram

SH2-129 and OU4 aka Flying Bat & Squid Nebulae, 



    
        

            Tommy Lease