HD 201298

HD 201298
	Location of HD 201298 (circled)
Observation data; Epoch J2000 Equinox J2000
Constellation	Equuleus
Right ascension	21h 08m 28.14s[1]
Declination	+06° 59′ 21.69″[1]
Apparent magnitude (V)	6.18
Characteristics
Spectral type	M0III[2]
B−V color index	1.669±0.014[2]
Astrometry
Radial velocity (Rv)	18.22±0.17[1] km/s
Proper motion (μ)	RA: −10.403±0.154[1] mas/yr ; Dec.: 2.818±0.155[1] mas/yr
Parallax (π)	2.5918 ± 0.1038[1] mas
Distance	1,260 ± 50 ly ; (390 ± 20 pc)
Absolute magnitude (MV)	-0.89 (self caculated)
Details
Radius	80.78[3] R☉
Luminosity	1,424.793[3] L☉
Temperature	3,945.54[3] K
Other designations
	HIP 104357, HR 8090, SAO 126566, BD+06° 4754
Database references
SIMBAD	data

HD 201298 (HR 8090) is a star located in the northern constellation of Equuleus just next to 3 Equulei With an apparent magnitude of 6.14, it's barely visible to the naked eye. HD 201298 is currently located 1,260 light years away from the Solar System based on parallax, but is drifting away with a radial velocity of 18,22 km/s.

Properties

This is an aging M-type star with a classification of M0III. It has expanded to 80.78 times the Sun's girth, and radiates at 1,424 solar luminosities. With an effective temperature of 3,945 K, HD 201298 has a red-hue when viewed in the night sky.

References

Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
Anderson, E.; Francis, Ch. (2012-05-01). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
Gaia Collaboration; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.; Biermann, M.; Evans, D. W.; Eyer, L.; Jansen, F. (2018-08-01). "Gaia Data Release 2. Summary of the contents and survey properties". Astronomy and Astrophysics. 616: A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. hdl:2445/140475. ISSN 0004-6361. S2CID 49211658.

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[Ga1aDR2-1] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

[XHIP-2] Anderson, E.; Francis, Ch. (2012-05-01). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.

[Ga2aDR2-3] Gaia Collaboration; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.; Biermann, M.; Evans, D. W.; Eyer, L.; Jansen, F. (2018-08-01). "Gaia Data Release 2. Summary of the contents and survey properties". Astronomy and Astrophysics. 616: A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. hdl:2445/140475. ISSN 0004-6361. S2CID 49211658.