![]() DH Tauri and the b companion (lower left) with the Very Large Telescope Credit: ESO VLT SPHERE; Van Holstein et al.; Processing: Meli_thev | |
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Taurus |
Right ascension | 04h 29m 41.558s [1] |
Declination | +26° 32′ 58.27″ [1] |
Apparent magnitude (V) | 13.1 [2] |
Characteristics | |
Spectral type | M0-M1Ve(T) [3] |
Variable type | T Tau [3] |
Astrometry | |
Proper motion (μ) |
RA: +7.065
[4]
mas/
yr Dec.: -20.699 [4] mas/ yr |
Parallax (π) | 7.3880 ± .0593 mas [4] |
Distance | 441 ± 4
ly (135 ± 1 pc) |
Details | |
Mass | 0.41 [5] M☉ |
Radius | 1.26 [5] R☉ |
Luminosity | 0.22 [5] L☉ |
Temperature | 3,751 [4] K |
Age | 3.16 [5] Myr |
Other designations | |
Database references | |
SIMBAD | data |
DH Tauri, also known as DH Tau, is a type M star, located 140 parsecs (456.619 light years) away. It forms a binary system with DI Tauri 15 ″ away, and has a substellar companion, either a brown dwarf or massive exoplanet.
DH Tauri is a type M, or red dwarf star, one of the most common types of star in the Milky Way. [6] It has an apparent magnitude of 13.71 and temperature of 3,751 K. DH Tauri has a mass of 0.41 M☉ and an estimated radius of 1.26 R☉.
The companion DH Tauri B or b has a mass estimated to be between eight MJ and 22 MJ, making it either a super-Jupiter or brown dwarf. [7] Other sources give a mass as high as 0.03 M☉, with a bolometric luminosity of 0.01 L☉. [8] The spectral type has been classified as M7.5 [8] or M9.25. [9] The companion, while its host star still having a protoplanetary disk, is still accreting material, being surrounded by a circumsubstellar disk (possibly a circumplanetary disk, depending on its formation history). [10]
![]() DH Tauri and the b companion (lower left) with the Very Large Telescope Credit: ESO VLT SPHERE; Van Holstein et al.; Processing: Meli_thev | |
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Taurus |
Right ascension | 04h 29m 41.558s [1] |
Declination | +26° 32′ 58.27″ [1] |
Apparent magnitude (V) | 13.1 [2] |
Characteristics | |
Spectral type | M0-M1Ve(T) [3] |
Variable type | T Tau [3] |
Astrometry | |
Proper motion (μ) |
RA: +7.065
[4]
mas/
yr Dec.: -20.699 [4] mas/ yr |
Parallax (π) | 7.3880 ± .0593 mas [4] |
Distance | 441 ± 4
ly (135 ± 1 pc) |
Details | |
Mass | 0.41 [5] M☉ |
Radius | 1.26 [5] R☉ |
Luminosity | 0.22 [5] L☉ |
Temperature | 3,751 [4] K |
Age | 3.16 [5] Myr |
Other designations | |
Database references | |
SIMBAD | data |
DH Tauri, also known as DH Tau, is a type M star, located 140 parsecs (456.619 light years) away. It forms a binary system with DI Tauri 15 ″ away, and has a substellar companion, either a brown dwarf or massive exoplanet.
DH Tauri is a type M, or red dwarf star, one of the most common types of star in the Milky Way. [6] It has an apparent magnitude of 13.71 and temperature of 3,751 K. DH Tauri has a mass of 0.41 M☉ and an estimated radius of 1.26 R☉.
The companion DH Tauri B or b has a mass estimated to be between eight MJ and 22 MJ, making it either a super-Jupiter or brown dwarf. [7] Other sources give a mass as high as 0.03 M☉, with a bolometric luminosity of 0.01 L☉. [8] The spectral type has been classified as M7.5 [8] or M9.25. [9] The companion, while its host star still having a protoplanetary disk, is still accreting material, being surrounded by a circumsubstellar disk (possibly a circumplanetary disk, depending on its formation history). [10]