HD 96700

HD 96700
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Hydra
Right ascension 11h 07m 54.427s[1]
Declination −30° 10′ 28.45″[1]
Apparent magnitude (V) 6.51[2]
Characteristics
Spectral type G0 V[3]
B−V color index 0.606[2]
Astrometry
Radial velocity (Rv)12.839±0.0105[2] km/s
Proper motion (μ) RA: −505.371 mas/yr[1]
Dec.: −132.293 mas/yr[1]
Parallax (π)39.3975 ± 0.0208 mas[1]
Distance82.79 ± 0.04 ly
(25.38 ± 0.01 pc)
Details
Mass0.96[4] M☉
Radius0.96 or 1.1[5] R☉
Surface gravity (log g)4.36[3] cgs
Temperature5,879[3] K
Metallicity [Fe/H]−0.14[3] dex
Age11.9[6] Gyr
Other designations
CD−29° 8875, GJ 412.2, HD 96700, HIP 54400, HR 4328, SAO 179558[7]
Database references
SIMBADdata

HD 96700 is the Henry Draper Catalogue designation for a star in the equatorial constellation of Hydra. It has an apparent visual magnitude of 6.51,[2] which puts it below the limit that can be seen with the naked eye by a typical observer.[8] (According to the Bortle scale, it is possible for some observers to see it from dark rural skies.) Based upon parallax measurements, this star is around 83 light years away from the Sun.[1] It is drifting further away with a radial velocity of 12.8 km/s.[2]

This is considered a high proper motion star, shifting its position across the celestial sphere at a rate of 0.52 arc seconds per year, along a position angle of 255.21°.[9] It is a member of the thin disk population of stars and is orbiting the galactic core at a mean galactocentric distance of 23.4 kly (7.17 kpc) with an orbital eccentricity 0.16. The inclination of its galactic orbit carries it no more than 950 ly (290 pc) away from the galactic plane.[10]

HD 96700 is a G-type main sequence star with a stellar classification of G0 V.[3] It has a slightly lower mass than the Sun[4] and a lower metallicity.[3] The estimated size is similar to the Sun, ranging from 96% to 110% depending on the method used.[5] The effective temperature of the star's outer atmosphere is 5,879 K,[3] giving it the yellow-hued glow of a G-type star.[11] It appears to be much older than the Sun, with age estimates ranging up to 11.9 billion years.[6]

HD 96700 might have a companion star, the K-type star CD-27 7781 appears to have similar distance and proper motions with the primary. At an angular distance of 6867", the projected separation between both stars is of 174,000 AU (2.75 light-years).[12] The existence of any additional stellar companions at projected distances from 7 to 209 astronomical units is ruled out.[13]

  1. ^ a b c d e Cite error: The named reference GaiaEDR3 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference aa552_A64 was invoked but never defined (see the help page).
  3. ^ a b c d e f g Cite error: The named reference aj132_1_161 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference aa556_A150 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference cadars was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference cgssn09 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Weaver1947 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference apjss141_1_187 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference aa394_927 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference multiplicity was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Mugrauer_Ginski_2015 was invoked but never defined (see the help page).