HD 283572


Coordinates: Sky map 04h 21m 58.8483s, +28° 18′ 06.5119″

HD 283572
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 04h 21m 58.8483s[1]
Declination +28° 18′ 06.5119″[1]
Evolutionary stage pre-main-sequence star[2]
Spectral type G5[3]
Apparent magnitude (B) 9.80[1]
Apparent magnitude (g) 8.80[4]
Apparent magnitude (R) 9.14[1]
Apparent magnitude (J) 7.414[1]
Variable type T Tau[3]
Radial velocity (Rv)15.0±1.5[3] km/s
Proper motion (μ) RA: 8.84±0.03[4] mas/yr
Dec.: -26.426±0.017[4] mas/yr
Parallax (π)7.8735 ± 0.0190[4] mas
Distance414.2 ± 1.0 ly
(127.0 ± 0.3 pc)
Mass1.6 M
Radius2.2 R
Luminosity5.5 L
Temperature5770 K
Metallicity [Fe/H]0.7±0.2[2] dex
Rotation1.55 d[2]
Rotational velocity (v sin i)78[2] km/s
Other designations
HDE 283572, 2MASS J04215884+2818066, BD+27 657, GSC 01828-00481, HIP 20388, TYC 1828-481-1, V987 Tauri, Gaia DR2 164536250037820160
Database references

HD 283572 is a young T Tauri-type pre-main sequence star in the constellation of Taurus about 414 light years away, belonging to the Taurus Molecular Cloud.[2] It is a rather evolved protostar which already dispersed its birth shroud.[3] The star emits a very high X-ray flux of 1031 ergs/s. That radiation flux associated with the magnetic activity induced a high coronal temperature of 3 kEv and regular flares.[5] HD 283572 will eventually evolve to an A-type main-sequence star when on the main sequence.[2] It is no longer accreting mass, and is magnetically decoupled from the remnants of the protoplanetary disk,[2] belonging to the terminal, 3rd phase of the disk evolution.[6]

Protoplanetary system

HD 283572 is surrounded by a light (<0.0004 M) and faint protoplanetary disk with uncertain inclination. Different instruments yielded measurements of disk inclination to the plane of sky from 35 to 60 degrees.[6] A search for planetary transits was performed but no planets were detected as of 2019.[7]


  1. ^ a b c d e "HD 283572". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-11-01.
  2. ^ a b c d e f g Scelsi, L.; Maggio, A.; Peres, G.; Pallavicini, R. (2005), "Coronal properties of G-type stars in different evolutionary phases", Astronomy & Astrophysics, 432 (2): 671–685, arXiv:astro-ph/0501631, Bibcode:2005A&A...432..671S, doi:10.1051/0004-6361:20041739, S2CID 15298988
  3. ^ a b c d e Torres, Rosa M.; Loinard, Laurent; Mioduszewski, Amy J.; Rodriguez, Luis F. (2007), "VLBA Determination of the Distance to Nearby Star‐forming Regions. II. Hubble 4 and HDE 283572 in Taurus", The Astrophysical Journal, 671 (2): 1813–1819, arXiv:0708.4403, Bibcode:2007ApJ...671.1813T, doi:10.1086/522924, S2CID 16357104
  4. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. Gaia EDR3 record for this source at VizieR.
  5. ^ Favata, F.; Micela, G.; Sciortino, S. (1998), "X-ray spectroscopy of the weak-lined T Tauri star HD 283572", Astronomy and Astrophysics, 336: 413–420, Bibcode:1998A&A...337..413F
  6. ^ a b Yasui, Chikako; Hamano, Satoshi; Fukue, Kei; Kondo, Sohei; Sameshima, Hiroaki; Takenaka, Keiichi; Matsunaga, Noriyuki; Ikeda, Yuji; Kawakita, Hideyo; Otsubo, Shogo; Watase, Ayaka; Taniguchi, Daisuke; Mizumoto, Misaki; Izumi, Natsuko; Kobayashi, Naoto (2019), "Possible Progression of Mass-flow Processes around Young Intermediate-mass Stars Based on High-resolution Near-infrared Spectroscopy. I. Taurus", The Astrophysical Journal, 886 (2): 115, arXiv:1909.09850, Bibcode:2019ApJ...886..115Y, doi:10.3847/1538-4357/ab45ee, S2CID 202718804
  7. ^ Hambálek, Ľ.; Vaňko, M.; Paunzen, E.; Smalley, B. (2019), "T Tauri stars in the SuperWASP and NSVS surveys", Monthly Notices of the Royal Astronomical Society, 483 (2): 1642–1654, arXiv:1811.08655, Bibcode:2019MNRAS.483.1642H, doi:10.1093/mnras/sty3151