Nu Caeli
Template:Location mark Location of ν Caeli (circled) | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Caelum |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 6.07[2] |
| Characteristics | |
| Spectral type | F2/3 V[3] or F1 III-IV[4] |
| B−V Template:Engvar | +0.37[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[5] km/s |
| Proper motion (μ) | RA: −3.846 mas/yr[1] Dec.: +66.201 mas/yr[1] |
| Parallax (π) | 20.2691±0.0215 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | +2.46[6] |
| Details | |
| Mass | 1.34[7] Template:Solar mass |
| Radius | 2.107[8] Template:Solar radius |
| Luminosity | 8.011[8] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val".[7] cgs |
| Temperature | 6,696[8] K |
| Metallicity [Fe/H] | −0.11[9] dex |
| Rotational velocity (v sin i) | 44.9[10] km/s |
| Age | 880[7] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[11] | |
| Database references | |
| SIMBAD | data |
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Nu Caeli is a yellow-white hued star in the constellation Caelum. Its name is a Bayer designation that is Latinized from ν Caeli, and abbreviated Nu Cae or ν Cae. This star has an apparent visual magnitude of 6.07, which indicates it is near the lower limit of brightness that is visible to the naked eye. According to the Bortle scale, the star can be viewed from dark suburban skies. Based upon an annual parallax shift of Script error: No such module "val". as seen from Earth, it is located Script error: No such module "convert". from the Sun. The star is drifting further away with a line of sight velocity of +24 km/s.[5]
Houk (1978) listed a stellar classification of F2/3 V for Nu Caeli,[3] which would indicate this is an F-type main-sequence star.[3] In contrast, Malaroda (1975) assigned it to class F1 III-IV,[4] which would suggest it is a more evolved F-type subgiant/giant transitional object. It is an estimated 880 million years old and has a high rate of spin, showing a projected rotational velocity of 45 km/s.[10] This star has 1.34[7] times the mass of the Sun and 2.1 times the Sun's radius.[8] It is radiating eight times the Sun's luminosity from its photosphere at an effective temperature of Script error: No such module "val"..[8]
A stellar companion is listed in multiple star catalogues. It is a 10th-magnitude star at an angular separation of about Script error: No such module "val".,[12][13] but is much further away than ν Caeli and thus unrelated.[14]
References
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- ↑ a b c d Template:Cite Gaia EDR3
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
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- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ a b c d e Script error: No such module "citation/CS1".
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- ↑ a b Script error: No such module "citation/CS1".
- ↑ Template:Cite simbad
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Template:Cite Gaia EDR3
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External links
- HR 1557 VizieR Bright Star Catalogue entry
- CCDM J04503-4119 Vizier Catalog of Components of Double and Multiple stars
- Nu Caeli Aladin Image
- Wikisky