Hemisphere:  Northern  ·  Contains:  NGC 869  ·  NGC 884  ·  NGC 957  ·  The star 7Per  ·  The star 8Per  ·  chi Persei Cluster  ·  h Persei Cluster
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Double cluster with Ha relic background., 



    
        

            Olly Penrice
Double cluster with Ha relic background.
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Double cluster with Ha relic background.

Technical card


Basic astrometry details

Astrometry.net job: 3926504

RA center: 2h 21' 10"

DEC center: +57° 6' 36"

Pixel scale: 2.881 arcsec/pixel

Orientation: 0.061 degrees

Field radius: 2.250 degrees


Resolution: 4683x3115

Data source: Backyard

Description

This is an older image re-posted for the first time since it was lost in the crash. I simply followed Fabian Neyer's good idea of looking for the relic radiation (if that's what it is) from the clusters' formation. I think that you can, if you try, find some evidence for a Rosette-like bubble blown by radiation pressure from the hot stars but I wouldn't call it conclusive...
21 hours all in, LRGB and Ha, using both Tak FSQ106 and TEC 140 data from Les Granges, as usual, in SE France.

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ollypenrice
Olly Penrice
License: None (All rights reserved)
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Double cluster with Ha relic background., 



    
        

            Olly Penrice