- Stingray Nebula
Planetary nebula
caption=Hubble Space Telescope photograph of the nebula
name = Stingray Nebula
type =
epoch =J2000
ra = RA|17|16|21.071Harvnb|SIMBAD|2007]
dec = DEC|-59|29|23.64
dist_ly = 18 kly (5.6 kpc)Harvnb|Parthasarathy|2000]
appmag_v = 10.75
size_v = 1″.6
constellation = Ara
radius_ly = 0.08 ly
absmag_v = -3.0Ref_label|A|a|none
notes =
names = PN G331.3-12.1,
Hen 3-1357The Stingray Nebula (Hen-1357) is the youngest knownplanetary nebula (PN). Harv|Gry|2002 The Stingray is located in the direction of the southern constellation
Ara (the Altar).History
Karl Gordon Henize classified Stingray Nebula as an A or B type Hα emission line star in 1967. It was observed in 1971 to be a pre-planetary nebulae (PPNe) when it seemed to be aasymptotic giant branch (AGB) B1supergiant . It was discovered as a planetary nebula (PN) in 1989 by the IUE (Parthasarathy et al 1993). Harv|Gry|2002 Parthasarathy et al. concluded that the light from the event arrived at Earth after 1975, probably in 1987 (the light would have travelled for about 18,000 years). Harv|Parthasarathy|2000Planetary nebula nucleus (PNN)
In 1995 the central planetary nebula nucleus (PNN) was observed as a DA
white dwarf , having seemingly faded by a factor of three between 1987 and 1995. The PNN has an estimated mass of 0.6 MΘ, and has an observed companion star separated by 0.3arcsec . Nebula mass is estimated as 0.015 MΘ.Luminosity is estimated to be 3000 L☉. Harv|Parthasarathy|2000
Notes
- Note_label|A|a|none10.75 apparent magnitude - 5 * (log10(5.6 kpc distance) - 1) = -3.0 absolute magnitude
References
* citation
last1 = Gry
first1 = C.
title = The rapidly evolving planetary nebula Hen 3-1357
journal = FUSE Proposal ID #Q304
year = 2002
volume =
issue =
pages =
url = http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002fuse.prop.Q304G
* citation
last1 = Guerrero
first1 = Martin
title = The Earliest Production of Hot Gas in Young Planetary Nebulae
journal = XMM-Newton Proposal ID #04023801
year = 2005
volume =
issue =
pages =
url = http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005xmm..prop...95G
* citation
last1 = Parthasarathy
first1 = M.
title = Birth and early evolution of planetary nebulae
journal = Bulletin of the Astronomical Society of India
year = 2000
volume = 28
issue =
pages = 217-224
url = http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2000BASI...28..217P
* citation
last1 = SIMBAD
title = Results for Stingray Nebula
authorlink = SIMBAD
year = 2007
date =January 15 2007
publisher = SIMBAD, Centre de Données Astronomiques de Strasbourg
url = http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=Stingray+Nebula
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