HD 84607
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  | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Sextans |
| Right ascension | 09h 46m 23.61048s[1] |
| Declination | +01° 47′ 08.1160″[1] |
| Apparent magnitude (V) | 5.64±0.01[2] |
| Characteristics | |
| Spectral type | F0/2 IV[3] |
| U−B color index | +0.12[4] |
| B−V color index | +0.34[4] |
| Astrometry | |
| Radial velocity (Rv) | 7.8±0.3[5] km/s |
| Proper motion (μ) | RA: −55.710 mas/yr[1] Dec.: −40.437 mas/yr[1] |
| Parallax (π) | 13.0508±0.0651 mas[1] |
| Distance | 250 ± 1 ly (76.6 ± 0.4 pc) |
| Absolute magnitude (MV) | +1.12[6] |
| Details | |
| Mass | 2.01[7] M☉ |
| Radius | 3.43±0.17[8] R☉ |
| Luminosity | 26.29+0.34 −0.31[1] L☉ |
| Surface gravity (log g) | 3.61±0.08[9] cgs |
| Temperature | 6,919±111[10] K |
| Metallicity [Fe/H] | +0.14[11] dex |
| Rotation | 1.51 d[12] |
| Rotational velocity (v sin i) | 93.1±4.7[12] km/s |
| Age | 1.06[7] Gyr |
| Other designations | |
| 1 G. Sextantis[13], AG+02°1299, BD+02°2246, FK5 2782, GC 13459, HD 84607, HIP 47960, HR 3879, SAO 117901, TIC 455274792[14] | |
| Database references | |
| SIMBAD | data |
HD 84607 (HR 3879; 1 G. Sextantis) is a solitary star[15] located in the equatorial constellation Sextans. It is faintly visible to the naked eye as a yellowish-white hued point of light with an apparent magnitude of 5.64.[2] The object is located relatively close at a distance of 250 light-years based on Gaia DR3 parallax measurements,[1] but it is receding with a heliocentric radial velocity of 7.8 km/s.[5] At its current distance, HD 84607's brightness is diminished by an interstellar extinction of 0.18 magnitudes[16] and it has an absolute magnitude +1.12.[6]
HD 84607 has a stellar classification of F0/2 IV,[3] indicating that it is a slightly evolved star with the characteristics of a F0 and F2 subgiant. At the age of 1.06 billion years,[7] the star is ceasing hydrogen fusion at its core and is cooling and expanding onto the red giant branch. It has 2.01 times the mass of the Sun[7] and a slightly enlarged radius 3.43 times that of the Sun.[8] It radiates 26.29 times the luminosity of the Sun[1] from its photosphere at an effective temperature of 6,919 K.[10] HD 84607 is metal enriched with an iron abundance of [Fe/H] = +0.14 or 138% of the Sun's[11] and it spins fairly quickly with a projected rotational velocity of 93.1 km/s within 1.51 days.[12]
