Chi1 Fornacis
  | |
| 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 | |
| Luminosity | 27.86[1] L☉ |
| Temperature | 8626 K[1] K |
| Other designations | |
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[edit]
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[edit]
- ^ a b c d e f g h i j k "Chi1 Fornacis Star Facts". Universe Guide. January 2015 [Revised 12 November 2023]. Archived from the original on 18 November 2023.
- ^ "χ1 Fornacis". The Sky Live. Retrieved 2023-11-18.
- ^ a b c d e 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.
- ^ 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.
