Back یوتا ماهی پرنده Persian Iota Volantis Portuguese Jota Volantis Swedish 飛魚座ι Chinese

Iota Volantis

ι Volantis
Location of ι Volantis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Volans
Right ascension 06h 51m 26.98552s[1]
Declination −70° 57′ 48.2766″[1]
Apparent magnitude (V) 5.39[2]
Characteristics
Spectral type B7 III[3]
U−B color index −0.37[3]
B−V color index −0.12[3]
Astrometry
Radial velocity (Rv)18.5[4] km/s
Proper motion (μ) RA: +3.64[1] mas/yr
Dec.: +26.08[1] mas/yr
Parallax (π)5.79 ± 0.19 mas[1]
Distance560 ± 20 ly
(173 ± 6 pc)
Absolute magnitude (MV)+0.14[5]
Details
Mass3.72±0.06[6] M☉
Radius4.7[7] R☉
Luminosity313[6] L☉
Temperature11,803[6] K
Rotational velocity (v sin i)129[6] km/s
Age236[5] Myr
Other designations
ι Nor, CPD−70°572, FK5 267, HD 51557, HIP 32912, HR 2602, SAO 256344[8]
Database references
SIMBADdata

Iota Volantis, Latinized as ι Volantis, is the Bayer designation for a star in the southern constellation of Volans. It has an apparent visual magnitude of 5.39,[2] which indicates it is faintly visible to the naked eye. With a parallax of 0.00579″, it lies at an estimated distance of roughly 560 light years from the Sun.[1]

This star has a stellar classification of B7 III,[3] which means it is a B-type giant star. However, some sources give it a classification of B7 IV, which would indicate it is a subgiant star. It has 3.7 times the mass of the Sun and is spinning rapidly with a projected rotational velocity of 129 km/s.[6] The estimated size of the star is 4.7 times the radius of the Sun,[7] and it shines with around 313 times the Sun's luminosity. The effective temperature of the star's outer atmosphere is 11,803 K,[6] giving it the blue-white hue of a B-type star.[9]

  1. ^ a b c d e f Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Cousins1962 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference houk1979 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference rgcrv was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Gontcharov2012 was invoked but never defined (see the help page).
  6. ^ a b c d e f Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference aaa367_521 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).

Developed by StudentB