IRAS 19475+3119
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 49m 29.5627s |
| Declination | +31° 27′ 16.221″ |
| Apparent magnitude (V) | 9.52 |
| Characteristics | |
| Evolutionary stage | Protoplanetary nebula |
| Spectral type | F3Ib |
| Astrometry | |
| Proper motion (μ) | RA: -0.6 mas/yr Dec.: -2.8 mas/yr |
| Other designations | |
|
HD 331319
|
|
IRAS 19475+3119 is a protoplanetary nebula in the constellation of Cygnus, 15,000 light-years away. An observation with the Hubble Space Telescope revealed a quadrupolar structure.[1]
The central star was originally 2.5 solar masses,[1] and is now 0.63 solar masses. The object is 8,300 times the luminosity of the sun and 4.9 kpc from the sun; its diameter is estimated to be 58 times that of the sun[2]
References
- ↑ 1.0 1.1 Raghvendra Sahai et al.: A Quadrupolar Preplanetary Nebula: IRAS 19475+3119, The Astrophysical Journal, Volume 658, Issue 1, pp. 410-422.
- ↑ Ming-Chien Hsu, Chin-Fei Lee: An Envelope Disrupted by a Quadrupolar Outflow in the Pre-Planetary Nebula IRAS19475+3119, arXiv:1105.2410v1
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This nebula-related article is a stub. You can help Wikipedia by expanding it. |
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This supergiant-related article is a stub. You can help Wikipedia by expanding it. |
