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Contains:  IC 1805
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Melotte 15 Narrowband, 





    
        

            Antonio.Spinoza
Melotte 15 Narrowband

Melotte 15 Narrowband

Technical card

Resolution: 5135x3627

Dates:Sept. 24, 2015Sept. 25, 2015Sept. 26, 2015

Frames:
Baader H-alpha 36mm: 19x1800" -20C bin 1x1
Baader OIII 36mm: 11x1800" -20C bin 1x1
Baader SII 36mm: 13x1800" -20C bin 1x1

Integration: 21.5 hours

Darks: ~24

Bias: ~125

Avg. Moon age: 11.74 days

Avg. Moon phase: 89.24%

Bortle Dark-Sky Scale: 7.00

Astrometry.net job: 838164

RA center: 2h 33' 0"

DEC center: +61° 29' 42"

Pixel scale: 0.811 arcsec/pixel

Orientation: 87.941 degrees

Field radius: 0.708

Locations: Home Yard, Valley Center, California, United States

Description

The star cluster at the heart of the Heart Nebula contains several stars up to 50 times the mass of the Earth's sun. Only about 1.5 million years old, the large bright stars, along with many other smaller stars, emit intense radiation that excites the surrounding gas and dust clouds, causing them to glow brightly in the H-alpha band creating an image of beautiful, intricate forms.

This image maps SII to red, Ha to green and OIII to blue.

The original image had bad transition zones between stacks where my position between nights and across the meridian were not perfect, so it was cropped a bit.

Comments

Author

Antonio.Spinoza
Antonio.Spinoza
License: None (All rights reserved)
1870
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Revisions

  • Melotte 15 Narrowband, 





    
        

            Antonio.Spinoza
    Original
  • Melotte 15 Narrowband, 





    
        

            Antonio.Spinoza
    B
  • Final
    Melotte 15 Narrowband, 





    
        

            Antonio.Spinoza
    C

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Melotte 15 Narrowband, 





    
        

            Antonio.Spinoza