M27 - NGC6853 - Dumbbell Nebula  
Vulpecula

Planetary Nebula		  
 
M27 (NGC 6853) is the famous Dumbbell Nebula, one of the most photographed planetary nebulae in the night sky. It is located in Vulpecula at the southern end of Cygnus. Its Magnitude 7.4 visual brightness makes it easy to find even in small telescopes. It is estimated to be 1,200 light-years from Earth. The Dumbbell Nebula was discovered on 12th July 1764 by Charles Messier and was the first planetary nebula to be discovered.

Planetary nebulae are formed in the dying stages of a star when the core fusion reactions decline to the extent that the star's structure cannot be supported - gravity forces the outer part of the star to collapse inwards, causing the inner part to condense and heat up. The intense build up of pressure and radiation causes the outer shell to 'explode' and be driven away. The intense stellar wind causes the surrounding gases to ionize in bright colours. Planetary nebulae are in fact very common in our galaxy, other noteworthy examples being the Helix Nebula and the Ring Nebula, though most of them are much smaller and less significant than these examples.		  
 
Technical details:  
Location:  
 Valdemorillo - Spain
Date:  
 18/07/2007 (dd/mm/yyyy)
Conditions:  
 Good
Temperature:  
 ºC
Humidity:  
 
Telescope:  
 Meade SC8" f/10
Reducer/corrector:  
 No reducer
Filter:  
 IDAS LPS 2"
Mount:  
 Meade LXD Autostar
Camera:  
 Canon 300D Schott filter
Exposure:  
 12x300s @ ISO800
Guiding tube:  
 Skylux 70/700 f/10, barlow x2
Guiding camera:  
 Celestron NexImage
Guiding software:  
 K3CCDTools
 
Procesing:  
 Stacked, histogram adjustment, curves and wavelets.  
Notes:  
 Very good guiding data obtained. Clear and stable sky.  
     

 
All Contents Copyright by Jaime Fernández and Copyright of their respectives owners. Text mainly extracted from Wikipedia.
All Jaime Fernandez propietary contents freely available for non-profit purposes,
otherwise I beg you for a fair contribution to NGO Medicos Sin Fronteras proportional to the profit obtained.

Este sitio web usa cookies para su funcionamiento. No utiliza cookies publicitarias ni de personalización.
Al navegar por esta web aceptas el uso de estas cookies y que tus datos de navegación sean anónimamente recopilados para conteo estadístico y control de acceso
(IP origen, fecha y hora, página visitada y términos de búsqueda usados).