| Interstellar cloud | |
|---|---|
| High-velocity cloud | |
 An image of Smith's Cloud, taken in 2008 by the Green Bank Telescope | |
| Observation data: J2000.0[1] epoch | |
| Right ascension | 19h 59m [1] |
| Declination | −00.3° [1] |
| Apparent diameter | 11° |
| Physical characteristics | |
| Dimensions | 9.8×103 ly (3 kpc) × 3.3×103 ly (1 kpc) |
| Designations | Smith Cloud, WV 360, HVC 040-15 |
Smith's Cloud is a high-velocity cloud of hydrogen gas located in the constellation Aquila at Galactic coordinates l = 39°, b = −13°. The cloud was discovered in 1963 by Gail Bieger, née Smith, who was an astronomy student at Leiden University in the Netherlands.[2][3]
- ^ a b c "NAME Gal Center Positive". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 March 2014.
- ^ Cite error: The named reference
newscientistwas invoked but never defined (see the help page). - ^ Smith, G.P. (1963). "Peculiar Feature at l = 40°.5, b = −15°.0". Bulletin of the Astronomical Institutes of the Netherlands. 17: 203. Bibcode:1963BAN....17..203S.