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Contains:  IC 1805
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Melotte 15 - Center of the Heart, 





    
        

            Uwe Deutermann

Melotte 15 - Center of the Heart

Technical card

Resolution: 3274x2542

Dates:Oct. 4, 2018Nov. 10, 2018

Frames:
Baader H-Alpha 2" 7nm: 10x600" (gain: 200.00) -15C bin 1x1
Baader H-Alpha 2" 7nm: 20x180" (gain: 200.00) -20C bin 1x1
Baader H-Beta 2" 8.5nm: 7x180" (gain: 200.00) -20C bin 1x1
Baader OIII 2" 8,5nm: 6x600" (gain: 200.00) -15C bin 1x1
Baader OIII 2" 8,5nm: 8x180" (gain: 200.00) -20C bin 1x1
Baader SII 2" 8nm: 6x600" (gain: 200.00) -15C bin 1x1
Baader SII 2" 8nm: 10x180" (gain: 200.00) -20C bin 1x1

Integration: 5.9 hours

Darks: ~35

Flats: ~78

Bias: ~50

Avg. Moon age: 13.59 days

Avg. Moon phase: 17.66%

Bortle Dark-Sky Scale: 6.00

Temperature: 15.00

Astrometry.net job: 2365386

Locations: Home Backyard, Fleming Island, Florida, United States

Data source: Backyard

Description

This was actually my first target with the new mount, wanted to see if sharpness can be improved with the new mount. The guiding was quite good, and the exposure times not as long, slight improvement from previous images. Did a quick processing of this one just to see a quick final result.

IC1805: Sprawling across almost 200 light-years, emission nebula IC 1805 is a mix of glowing interstellar gas and dark dust clouds. About 7,500 light-years away in the Perseus spiral arm of our galaxy, stars were born in IC 1805. In fact, near the cosmic heart's center are the massive hot stars of a newborn star cluster also known as Melotte 15, about 1.5 million years young. The nebula's intense red output and its configuration are driven by the radiation emanating from this small group of stars near the nebula's center. This open cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.

Comments

Author

udeuterm
Uwe Deutermann
License: Attribution-NonCommercial-ShareAlike Creative Commons
1400
Like

Revisions

  • Melotte 15 - Center of the Heart, 





    
        

            Uwe Deutermann
    Original
  • Melotte 15 - Center of the Heart, 





    
        

            Uwe Deutermann
    B
  • Melotte 15 - Center of the Heart, 





    
        

            Uwe Deutermann
    C
  • Final
    Melotte 15 - Center of the Heart, 





    
        

            Uwe Deutermann
    D
  • Melotte 15 - Center of the Heart, 





    
        

            Uwe Deutermann
    E

B

Had to work on this to make it look nicer ;-)! Used just the Hα and S data for this version.

C

Applied the AdvSharpening script recommended by Alan (thanks for the tip!). It indeed got a bit more details out of this image.

D

Playing around with PI. Integrated 2 sets of image session into one, automatic star alignment worked great.

E

The starless version of Melotte 15. Gloomy.

Histogram

Melotte 15 - Center of the Heart, 





    
        

            Uwe Deutermann