R Octantis

R Octantis
	; The visual band light curve of R Octantis, from AAVSO data
Observation data; Epoch J2000 Equinox J2000
Constellation	Octans
Right ascension	05h 26m 06.19562s
Declination	��86° 23′ 17.7741″
Apparent magnitude (V)	6.4-13.2
Characteristics
Spectral type	M5.5e
Variable type	Mira
Astrometry
Radial velocity (Rv)	46.00 ± 4.7 km/s
Proper motion (μ)	RA: 1.26 ± 0.61 mas/yr ; Dec.: 28.97 ± 0.94 mas/yr
Parallax (π)	1.9834 ± 0.1669 mas
Distance	1,600 ± 100 ly ; (500 ± 40 pc)
Details
Luminosity	9304 L☉
Temperature	2571 K
Other designations
	R Oct, CD−86° 52, HD 40857, HIP 25412.
Database references
SIMBAD	data

R Octantis is a Mira variable star located in the southern constellation of Octans. It shines with a luminosity 9304 times that of the Sun and has a surface temperature of 2571 K.^[5]

References[]

^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
^ ^a ^b ^c ^d 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. Vizier catalog entry
^ Otero, Sebastian (26 April 2011). "R Octantis". AAVSO Website. American Association of Variable Star Observers. Retrieved 21 April 2016.
^ 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.
^ ^a ^b ^c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (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.
^ "V* R Oct". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 April 2016.

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[aavso-1] "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.

[van_Leeuwen2007-2] 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. Vizier catalog entry

[AAVSOR-3] Otero, Sebastian (26 April 2011). "R Octantis". AAVSO Website. American Association of Variable Star Observers. Retrieved 21 April 2016.

[Gaia-DR2-4] 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.

[Mcdonald-5] McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (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.

[SIMBAD-6] "V* R Oct". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 April 2016.

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Observation data Epoch J2000 Equinox J2000
The visual band light curve of R Octantis, from AAVSO data^[1]
Constellation	Octans
Right ascension	05^h 26^m 06.19562^s^[2]
Declination	��86° 23′ 17.7741″^[2]
Apparent magnitude (V)	6.4-13.2^[3]
Characteristics
Spectral type	M5.5e
Variable type	Mira
Astrometry

Radial velocity (R_v)	46.00 ± 4.7 km/s
Proper motion (μ)	RA: 1.26 ± 0.61^[2] mas/yr Dec.: 28.97 ± 0.94^[2] mas/yr
Parallax (π)	1.9834 ± 0.1669^[4] mas
Distance	1,600 ± 100 ly (500 ± 40 pc)

Details

Luminosity	9304^[5] `L`_☉
Temperature	2571^[5] K

Other designations
R Oct, CD−86° 52, HD 40857, HIP 25412.^[6]
Database references
SIMBAD	data