Owl Nebula

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Planetary Nebula
Data of the Owl Nebula
M97-stargazer-obs.jpg
Taken from the Stargazer Observatory
AladinLite
Constellation Big Bear
Position
equinox : J2000.0
Right ascension 11h 14m 47.7s
declination + 55 ° 01 ′ 09 ″
Appearance
Apparent brightness  (visual) 9.9 likes 
Angular expansion 3.4 ′ × 3.3 ′  
Central star
designation RX J111447.9 + 550106 
Apparent brightness 16 likes 
Physical data
Redshift (27 ± 17)  ·  10 −6 
Radial velocity (8 ± 5) km / s 
distance vague information
between 400 u. 12,000 ly 
Dimensions 0.15 M ☉
Age 6000 years
history
discovery Pierre Méchain
Date of discovery February 16, 1781
Catalog names
 NGC  3587 •  PK  148 + 57.1 • PN G148.4 + 57.0 •  M  97

The Owl Nebula (also known as Messier 97 or NGC 3587 ) is one of the approximately 1,600 planetary nebulae in our Milky Way . With the dimensions 3.4 '× 3.3' and an apparent magnitude of 9.9 mag, it is located in the constellation Great Bear . The shell ejected from the central star is about 2  light years in diameter and expands at about 40 km / s in space .

Web links

Individual evidence

  1. ↑ NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ SEDS : NGC 3587
  3. ↑ a b SIMBAD
  4. ↑ a b c Messier 97 at SEDS
  5. ↑ Seligman