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Contains:  NGC 4609
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NGC 4609 & Hogg 15 - Open Clusters in the Coalsack - Tamron 1200 mm, 





    
        

            Ray Caro
NGC 4609 & Hogg 15 - Open Clusters in the Coalsack - Tamron 1200 mm

NGC 4609 & Hogg 15 - Open Clusters in the Coalsack - Tamron 1200 mm

Technical card

Resolution: 1975x2975

Dates:June 24, 2018

Frames: 120x30"

Integration: 1.0 hours

Avg. Moon age: 11.36 days

Avg. Moon phase: 87.43%

Astrometry.net job: 2132389

RA center: 190.680 degrees

DEC center: -62.998 degrees

Pixel scale: 1.316 arcsec/pixel

Orientation: 357.973 degrees

Field radius: 0.653 degrees

Data source: Backyard

Description

In the Coalsack, image published here https://astrob.in/353867/B/ it is mentioned a tiny cluster of stars NGC 4609. It is magnified by my Tamron 1200 mm.

It was discovered by James Dunlop in 1826 and later included in the NGC by John Herschel.

The biggest star on the image is HD 110432 and probably part of NGC 4609.

Slightly below, on the left, there is a small open cluster called Hogg 15. It has the particularity of containing a Wolf-Rayet star (WR 47).

These two clusters would apparently lie behind the Coalsack.

Comments

Author

RayCaro
Ray Caro
License: None (All rights reserved)
2051
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Revisions

  • NGC 4609 & Hogg 15 - Open Clusters in the Coalsack - Tamron 1200 mm, 





    
        

            Ray Caro
    Original
  • NGC 4609 & Hogg 15 - Open Clusters in the Coalsack - Tamron 1200 mm, 





    
        

            Ray Caro
    C
  • Final
    NGC 4609 & Hogg 15 - Open Clusters in the Coalsack - Tamron 1200 mm, 





    
        

            Ray Caro
    D

C

I made the stars twinkle...

D

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Sky plot

Sky plot

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NGC 4609 & Hogg 15 - Open Clusters in the Coalsack - Tamron 1200 mm, 





    
        

            Ray Caro