NGC 6751

NGC 6751
A Hubble Space Telescope (HST) image of NGC 6751. Credit: HST/NASA/ESA.
Observation data (Epoch J2000.0)
Right ascension	19h 5m 55.6s[1]
Declination	-5° 59′ 32.9″[1]
Distance	6.500 Ly
Apparent magnitude (V)	11.9[2]
Apparent dimensions (V)	0.43'
Constellation	Aquila
Physical characteristics
Radius	0.215'
Absolute magnitude (V)	11.9
Other designations	GSC 05140-03497, PK 029-05 1, PN Th 1-J, CSI-06-19031, HD 177656, PMN J1905-0559, PN Sa 2-382, EM* CDS 1043, HuLo 1, PN ARO 101, PN G029.2-05.9, GCRV 11549, IRAS 19032-0604, PN VV' 477, SCM 227, GSC2 S3002210353, 2MASX J19055556-0559327, PN VV 219, UCAC2 29903231 .
See also: Planetary nebula, Lists of nebulae

NGC 6751 is a planetary nebula in the constellation Aquila. The nebula is estimated to be around 0.8 light-years in diameter. The star at the centre of the nebula has a surface temperature of approximately 140,000 K. It has been calculated to be roughly 6,500 light-years away from Earth. It was formed when a star collapsed and threw off its outer layer of gas several thousand years ago.

The nebula was the subject of the winning picture in the 2009 Gemini School Astronomy Contest, in which Australian high school students competed to select an astronomical target to be imaged by Gemini.

See also

• Planetary nebula
• List of planetary nebulae

External links

• 2009 Gemini School Astronomy Contest press release
• NASA Astronomy Picture of the Day: April 16, 2005
• The Glowing Eye of NGC 6751: December 18, 2007
• Simbad
• NGC 6751

References

1. ^ ^{a b} "SIMBAD Astronomical Database". Results for NGC 6751. http://simbad.u-strasbg.fr/Simbad. Retrieved 2007-04-27. 
2. ^ "NGC/IC Project". http://www.ngcicproject.org/dss/dss_ngc.asp. Retrieved 2010-01-01.