Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Getting plate-solving status, please wait...
Spelunking - Sh2-155 (Cave Nebula) in HAOIIILRGB, 





    
        

            Nico Carver
Spelunking - Sh2-155 (Cave Nebula) in HAOIIILRGB

Spelunking - Sh2-155 (Cave Nebula) in HAOIIILRGB

Technical card

Resolution: 4355x3038

Dates:June 3, 2019June 11, 2019June 14, 2019June 22, 2019July 1, 2019July 2, 2019July 3, 2019July 14, 2019July 15, 2019Aug. 1, 2019Aug. 9, 2019Aug. 10, 2019Aug. 24, 2019Aug. 25, 2019Aug. 29, 2019Aug. 30, 2019Sept. 16, 2019Sept. 17, 2019Sept. 18, 2019Sept. 19, 2019Sept. 21, 2019Sept. 27, 2019Sept. 28, 2019Oct. 4, 2019

Frames:
Astrodon B Gen.2 E-series: 64x300" -15C bin 1x1
Astrodon G Gen.2 E-series: 57x300" -15C bin 1x1
Astrodon L Gen.2 E-series: 50x300" -15C bin 1x1
Astrodon R Gen.2 E-series: 59x300" -15C bin 1x1
Astrodon Tru-Balance 1.25" 3nm OIII: 222x300" (gain: 200.00) -15C bin 1x1
Astrodon Tru-Balance 1.25" 5nm Ha: 297x300" (gain: 200.00) -15C bin 1x1

Integration: 62.4 hours

Darks: ~30

Flats: ~30

Flat darks: ~30

Avg. Moon age: 15.73 days

Avg. Moon phase: 45.32%

Bortle Dark-Sky Scale: 6.25

Mean SQM: 19.27

Astrometry.net job: 2977180

RA center: 344.843 degrees

DEC center: 62.412 degrees

Pixel scale: 2.425 arcsec/pixel

Orientation: 342.996 degrees

Field radius: 1.789 degrees

Data source: Traveller

Description

n. Spelunking: the exploration of caves, especially as a hobby

This is a two panel mosaic that I shot from June through October 2019. I also shot Near IR and SII data that I didn't end up using. Maybe some other time.

Narrowband was shot in Somerville, MA (SQM reading at zenith = 18.0 mpsas). Broadband was shot at the ATMOB Clubhouse in Westford, MA. (SQM reading at zenith = 20.17 mpsas)

Comments

Author

2ghouls
Nico Carver
License: Attribution-ShareAlike Creative Commons
3269
Like

Revisions

  • Spelunking - Sh2-155 (Cave Nebula) in HAOIIILRGB, 





    
        

            Nico Carver
    Original
  • Spelunking - Sh2-155 (Cave Nebula) in HAOIIILRGB, 





    
        

            Nico Carver
    B
  • Final
    Spelunking - Sh2-155 (Cave Nebula) in HAOIIILRGB, 





    
        

            Nico Carver
    C

B

Annotated version

C

A bit darker / changed reds. It looked a bit weird on certain monitors.

Sky plot

Sky plot

Histogram

Spelunking - Sh2-155 (Cave Nebula) in HAOIIILRGB, 





    
        

            Nico Carver