Frosty Leo Nebula

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**Frosty Leo Nebula**
Observation data (Epoch J2000)
Protoplanetary nebula	Lists of nebulae

Right ascension	09^h 39^m 53.96^s^[1]
Declination	+11° 58′ 52.4″^[1]
Distance	3 kly (920 pc)^[2]
Apparent magnitude (V)
Apparent dimensions (V)
Constellation	Leo
Physical characteristics
Radius	? ly^[a]
Absolute magnitude (V)	?^[b]
Notable features	-
Other designations	IRAS 09371+1212^[1]

The Frosty Leo Nebula is a protoplanetary nebula located roughly at 3,000 light-years (Davis et al. 2005) away from Earth. It is a bipolar nebula. Its central star is of spectral type K7II. It is unusual in that it has an extremely deep absorption feature at 3.1µm and is unusually located at more than 900 pc above the plane of our galaxy.(Bourke et al. 2000)

[edit] Notes

^{^} distance × sin( diameter_angle / 2 ) = ? ly. radius
^{^} ?^[1] apparent magnitude - 5 * (log₁₀(920 pc distance) - 1) = ? absolute magnitude

^ ^a ^b ^c ^d (SIMBAD 2007)
^ (Davis et al. 2005)

[edit] References

Davis, C. J.; M. D. Smith & T. M. Gledhill et al. (2005), "Near-infrared echelle spectroscopy of protoplanetary nebulae: probing the fast wind in H₂", Monthly Notices of the Royal Astronomical Society 360(1): 104-118
Bourke, Tyler; A. R. Hyland & Garry Robinson et al. (2000), "The Evolutionary Status of the Frosty Leo Nebula", Asymmetrical Planetary Nebulae II: From Origins to Microstructures, ASP Conference Series. Edited by J. H. Kastner, N. Soker, and S. Rappaport. ISBN: 1-58381-026-9 199(1): 171
SIMBAD (January 7, 2007), Results for Frosty Leo Nebula, SIMBAD, Centre de Données Astronomiques de Strasbourg