NGC7635 (Bubble Nebula) + M52 - RGB (9 votes)  
Cassiopeia

HII Emission nebula
 
 
Awards & publications:
Jun 2009 CloudlyNights.com Monthly Winner
 
 
CloudlyNights Award

It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, the 15 ± 5 M☉SAO 20575 (BD+60 2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.

With an 8 or 10 inch telescope, the nebula is visible as an extremely faint and large shell around the star. The nearby 7th magnitude star on the west hinders observation, but one can view the nebula using averted vision. Using a 16 to 18 inch scope, one can see that the faint nebula is irregular, being elongated in the north south direction.


 
 
Technical details:  
Location:  
Soria - Spain
Date:  
29/julio
Conditions:  
Good
Temperature:  
17ºC
Humidity:  
low
 
Telescope:  
Meade Reflector 150 f/5
Reducer/corrector:  
Baader MPCC
Filter:  
IDAS LPS 2"
Mount:  
Vixen GPD2 Autostar Meade
Camera:  
Canon 350D no filter
Exposure:  
4x600s, ISO400
Guiding tube:  
B&C 60/350 f7
Guiding camera:  
Meade DSI Pro
Guiding software:  
K3CCDTools
 
Procesing:  
 
Notes:  
Elegida foto del mes Junio 2009 en CloudlyNights.com (CloudlyNights Jun09 Monthly Winner)  
   
   
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Votes received / Votos recibidos: 9  
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