HD 93833

HD 93833
Observation data; Epoch J2000 Equinox J2000
Constellation	Sextans
Right ascension	10h 49m 43.48894s[1]
Declination	−09° 51′ 09.6989″[1]
Apparent magnitude (V)	5.842[2]
Characteristics
Spectral type	K0 III[3]
U−B color index	+0.91[4]
B−V color index	+1.07[4]
Astrometry
Radial velocity (Rv)	40.3 ± 2[5] km/s
Proper motion (μ)	RA: 10.06[1] mas/yr ; Dec.: −26.87[1] mas/yr
Parallax (π)	9.57 ± 0.36[1] mas
Distance	340 ± 10 ly ; (104 ± 4 pc)
Details[6]
Radius	10.527 R☉
Luminosity	49.414 ± 3.212 L☉
Temperature	4720 ± 125 K
Other designations
	BD−09° 3147, HD 93833, HIP 52948, HR 4233, SAO 137815
Database references
SIMBAD	data

HD 93833 is a star in the constellation of Sextans. Its apparent magnitude is 5.842,[2] but interstellar dust makes it appear 0.202 magnitudes dimmer than it should be.[6] It is located some 340 light-years (104 parsecs) away, based on parallax.[1]

HD 93833 is a K-type giant star. It has evolved from the main sequence to a radius of 10.5 times that of the Sun. It emits 49.4 times as much energy as the Sun at a surface temperature of 4,720 K.[6]

References

van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
Houk, N.; Cowley, A. P. (1975). "University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90°.0 to -53°.0". Michigan Catalogue of two-dimensional spectral types for the HD stars. 1. Bibcode:1975mcts.book.....H.
Johnson, H. L. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99. Bibcode:1966CoLPL...4...99J.
Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Washington. Bibcode:1953GCRV..C......0W.
McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017). "Fundamental parameters and infrared excesses of Tycho-Gaia stars". Monthly Notices of the Royal Astronomical Society. 471: 770. arXiv:1706.02208. Bibcode:2017MNRAS.471..770M. doi:10.1093/mnras/stx1433.

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[HIP-1] van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.

[TYC2-2] Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.

[Houk1975-3] Houk, N.; Cowley, A. P. (1975). "University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90°.0 to -53°.0". Michigan Catalogue of two-dimensional spectral types for the HD stars. 1. Bibcode:1975mcts.book.....H.

[Johnson-4] Johnson, H. L. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99. Bibcode:1966CoLPL...4...99J.

[GCRV-5] Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Washington. Bibcode:1953GCRV..C......0W.

[McDonald-6] McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017). "Fundamental parameters and infrared excesses of Tycho-Gaia stars". Monthly Notices of the Royal Astronomical Society. 471: 770. arXiv:1706.02208. Bibcode:2017MNRAS.471..770M. doi:10.1093/mnras/stx1433.