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LDN 1235 The Dark Shark Nebula, 





    
        

            Randal Healey
LDN 1235 The Dark Shark Nebula

LDN 1235 The Dark Shark Nebula

Technical card

Resolution: 920x1439

Dates:Nov. 1, 2017Nov. 2, 2017Nov. 3, 2017

Frames:
Astrodon B CCD 1.25": 17x300" -20C bin 1x1
Astrodon G CCD 1.25": 12x300" -20C bin 1x1
Optolong H-alpha 12nm: 8x600" -20C bin 1x1
L: 15x300" -20C bin 1x1
Astrodon R CCD 1.25": 14x300" -20C bin 1x1

Integration: 6.2 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 12.87 days

Avg. Moon phase: 95.18%

Astrometry.net job: 1810956

RA center: 332.947 degrees

DEC center: 73.205 degrees

Pixel scale: 3.187 arcsec/pixel

Orientation: 355.761 degrees

Field radius: 0.756 degrees

Locations: Healey "Utahopia" Observatory, Kaysville, Utah, United States

Data source: Backyard

Description

LDN1235 Dark Shark Nebula

Sporting an uncanny resemblance to a shark, LDN 1235 is most likely an extended red emission nebula (ERE). EREs shine by photoluminescence when dust particles are hit by high energy radiation.

Comments

Author

RandalHealey
Randal Healey
License: None (All rights reserved)
1431
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Revisions

  • LDN 1235 The Dark Shark Nebula, 





    
        

            Randal Healey
    Original
  • Final
    LDN 1235 The Dark Shark Nebula, 





    
        

            Randal Healey
    B

Sky plot

Sky plot

Histogram

LDN 1235 The Dark Shark Nebula, 





    
        

            Randal Healey