Chi2 Fornacis
Location of χ1 Fornacis (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Fornax[1]
Right ascension 03h 25m 55s[1]
Declination −35° 55′ 14″[1]
Apparent magnitude (V) 6.39[1]
Characteristics
Evolutionary stage main sequence star
Spectral type A1IV[1]
Astrometry
Proper motion (μ) RA: 36.3 ± 0.42[1] mas/yr
Dec.: -4.38 ± 0.34[1] mas/yr
Parallax (π)9.27[1] mas
Details
Luminosity27.86[1] L☉
Temperature8626 K[1] K
Other designations
χ1 For, HD 21573, TYC 7027-1218-1, HIP 15987, HR 1042[1]

χ1 Fornacis, Latinised from Chi1 Fornacis (Chi1 For, χ1 For) is a variable star in the southern constellation of Fornax.[2] It is the brightest star in the χ1 Fornacis cluster, a star cluster around 104 parsecs from Earth.[3]

χ1 Fornacis cluster

The χ1 Fornacis cluster, or Alessi 13,[4] is one of the four star clusters known within 110 parsecs from Earth. [3] Despite its closeness, the χ1 Fornacis cluster has barely been studied. Its age is 40 million years and its distance is 104 parsecs.[3] The χ1 Fornacis cluster appears to be closely related to the Tucana–Horologium and Columba associations.[3] A remarkable, unprecedented aspect of the cluster is the large percentage of M-type stars with warm excess infrared emission due to orbiting dust grains.[3]

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Chi1 Fornacis Star Facts". Universe Guide. January 2015 [Revised 12 November 2023]. Archived from the original on 18 November 2023.
  2. ↑ "χ1 Fornacis". The Sky Live. Retrieved 2023-11-18.
  3. 1 2 3 4 5 Zuckerman, B.; Klein, Beth; Kastner, Joel (2019). "The Nearby, Young, χ1 Fornacis Cluster: Membership, Age, and an Extraordinary Ensemble of Dusty Debris Disks". The Astrophysical Journal. 887 (1). 87. arXiv:1909.08764. Bibcode:2019ApJ...887...87Z. doi:10.3847/1538-4357/ab45ea.
  4. ↑ P. A. B. Galli; H. Bouy; J. Olivares; N. Miret-Roig; L. M. Sarro; D. Barrado; A. Berihuete (2021). "χ1 Fornacis cluster DANCe: Census of stars, structure, and kinematics of the cluster with Gaia-EDR3" (PDF). Astronomy and Astrophysics. 654. A122. doi:10.1051/0004-6361/202141366. Retrieved 28 November 2023.
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