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M 27

Planetary Nebula in Vulpecula 

 (ra: 19:59.6 / dec 22:43)

 

 

 

 

June 2011, Laguna de Todos los Santos, 25 de Mayo

Buenos Aires, Argentina

 

 

 

DATA

TYPE: Planetary Nebula

VISUAL BRIGHTNESS: 7.4

SIZE: 8 X 5.7 arcs minutes

DISTANCE: 1.25 k light years

   

OBJECT DESCRIPTION AND IMAGE SESSION

M27 was the first ever discovered Planetary Nebula by Charles Messier in 1764. It also is the larger object of its type. The brightest part of this object spreads out in 6 arc minutes, approximately 2.4 light years. The region is  illuminated by its central star, that shines at magnitude 13.5. The visible glow in the picture is generated as atoms are excited by the dying star's intense but invisible ultra violet light. M27 is the type of Nebula our Sun will produce when nuclear fusion stops in its core.

The object was too low in the horizon where also some light pollution of a 40 km away town washed the transparency of the sky in that particular area.

 

IMAGE INFORMATION

SCOPE: Celestron SCT 8" working in f6.3

MOUNT: Sky Watcher HEQ6

SKY CONDITIONS: Rural Skies - good

CAMERAS: QSI 583 WS -10Cº

FILTERS: Baader 31 mm LRGB

EXPOSURES: LHaRGB (30,20,20,20,20) RGB bin 2x2

GUIDING: William Optics ZenithStar 66 f6. Starlight Xpress Lodestar Camera. AA 3.71 Control Camera Plug-in

PROCESSING: Images Plus (Sigma Median Combination) CCD Sharp Richardson Lucy Deconvolution NASA Photoshop Fits Liberator, Photoshop CS