ASASSN-21qj

ASASSN-21qj
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Puppis
Right ascension 08h 15m 23.300s[1]
Declination −38° 59′ 23.30″[1]
Apparent magnitude (V) 13.48±0.034[2]
Astrometry
Radial velocity (Rv)25.8±3[2] km/s
Proper motion (μ) RA: −9.692[1] mas/yr[1]
Dec.: 7.349[1] mas/yr[1]
Parallax (π)1.7631 ± 0.0112 mas[1]
Distance1,850 ± 10 ly
(567 ± 4 pc)
Details[2]
Radius1.045 R☉
Surface gravity (log g)4.339±0.005 cgs
Temperature5,760±10 K
Metallicity [Fe/H]−0.23±0.01 dex
Age300±92 Myr
Other designations
ASASSN -21qj[3]
Database references
SIMBADdata

ASASSN-21qj, also known as 2MASS J08152329-3859234, is a Sun-like main sequence star with a rotating disk of circumstellar dust and gas which are leftovers from its stellar formation around 300 million years ago. The star is located 1,850 light years (567.2 parsecs) from Earth in the constellation of Puppis.[4]

  1. ^ a b c d e f 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. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  2. ^ a b c Cite error: The named reference :0 was invoked but never defined (see the help page).
  3. ^ "2MASS J08152329-3859234". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-08-04.
  4. ^ Anderson, Natali (2023-10-11). "Astronomers Detect Afterglow of Collision between Two Ice-Giant Exoplanets | Sci.News". Sci.News: Breaking Science News. Retrieved 2023-10-22.