HOPS 383

Infrared images from instruments at Kitt Peak National Observatory (left) and NASA's Spitzer Space Telescope document the outburst of HOPS 383, a young protostar in the Orion star-formation complex. The background is a wide view of the region taken from a Spitzer four-color infrared mosaic.

HOPS 383

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Orion
Right ascension	5h 35m 29.81s
Declination	−4° 59′ 51.1″
Distance	1,400 ly ly (420 pc)
Spectral type	Class 0 protostar
Other designations
HOPS 383

HOPS 383 is a Class 0 protostar. It is the first class-0 protostar discovered to have had an outburst, and as of 2020, the youngest protostar known to have had an outburst. The protostar was discovered by the Herschel Orion Protostar Survey (HOPS) team.

Further reading

• "HOPS 383: An Outbursting Class 0 Protostar in Orion"; Emily J. Safron, William J. Fischer, S. Thomas Megeath, Elise Furlan, Amelia M. Stutz, Thomas Stanke, Nicolas Billot, Luisa M. Rebull, John J. Tobin, Babar Ali, Lori E. Allen, Joseph Booker, Dan M. Watson, T. L. Wilson; The Astrophysical Journal Letters, Volume 800, Issue 1, article id. L5, 6 pp. (2015) February 2015; arXiv:1501.00492; Bibcode:2015ApJ...800L...5S; doi:10.1088/2041-8205/800/1/L5;