HD 157753

HD 157753
Observation data; Epoch J2000 Equinox J2000
Constellation	Ara
Right ascension	17h 27m 57.60196s
Declination	−52° 17′ 49.8161″
Apparent magnitude (V)	5.75
Characteristics
Spectral type	K2III
B−V color index	+1.17
Astrometry
Radial velocity (Rv)	−8.70 km/s
Proper motion (μ)	RA: −14.50 mas/yr ; Dec.: −58.43 mas/yr
Parallax (π)	9.12 ± 0.53 mas
Distance	360 ± 20 ly ; (110 ± 6 pc)
Details
Luminosity	81 L☉
Temperature	4,564 K
Other designations
	FK5 3386, HD 157753, HIP 85470, HR 6483, SAO 244763.
Database references
SIMBAD	data

HD 157753 is giant star in the southern constellation of Ara. It may be an astrometric binary,^[6] and it has a faint, magnitude 13 companion at an angular separation of 31.5″ along a position angle of 356° (as of 2000).^[7]

References

^ ^a ^b ^c ^d ^e van Leeuwen, F. (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. S2CID 18759600.
^ ^a ^b Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars", Monthly Notes of the Astronomical Society of Southern Africa, 27: 11, Bibcode:1968MNSSA..27...11C
^ Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H
^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
^ ^a ^b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352
^ Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976.
^ Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22

External links

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[van_Leeuwen2007-1] van Leeuwen, F. (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. S2CID 18759600.

[mnrassa27_11-2] Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars", Monthly Notes of the Astronomical Society of Southern Africa, 27: 11, Bibcode:1968MNSSA..27...11C

[houk1978-3] Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H

[Gontcharov-4] Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.

[Mcdonald2012-5] McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352

[Eggleton2008-6] Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976.

[WDSC2014-7] Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22

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Observation data Epoch J2000 Equinox J2000
Constellation	Ara
Right ascension	17^h 27^m 57.60196^s^[1]
Declination	−52° 17′ 49.8161″^[1]
Apparent magnitude (V)	5.75^[2]
Characteristics
Spectral type	K2III^[3]
B−V color index	+1.17^[2]
Astrometry

Radial velocity (R_v)	−8.70^[4] km/s
Proper motion (μ)	RA: −14.50^[1] mas/yr Dec.: −58.43^[1] mas/yr
Parallax (π)	9.12 ± 0.53 mas^[1]
Distance	360 ± 20 ly (110 ± 6 pc)

Details

Luminosity	81^[5] `L`_☉
Temperature	4,564^[5] K

Other designations
FK5 3386, HD 157753, HIP 85470, HR 6483, SAO 244763.
Database references
SIMBAD	data