AK_Pyxidis Knowpia

AK Pyxidis
	; A visual band light curve for AK Pyxidis, plotted from data published by Tabur et al. (2009)
Observation data; Epoch J2000 Equinox J2000
Constellation	Pyxis
Right ascension	08h 48m 14.62631s
Declination	−28° 38′ 19.6757″
Apparent magnitude (V)	6.09-6.51
Characteristics
Spectral type	M5III
Variable type	semiregular variable
Astrometry
Proper motion (μ)	RA: -10.60 ± 0.29 mas/yr ; Dec.: −8.05 ± 0.29 mas/yr
Parallax (π)	4.68 ± 0.41 mas
Distance	700 ± 60 ly ; (210 ± 20 pc)
Details
Luminosity	1500 L☉
Temperature	3410 K K
Other designations
	AK Pyxidis, CD−61° 1428, HD 75306, HIP 43215, SAO 176496.
Database references
SIMBAD	data

AK Pyxidis is a semiregular variable star located in the constellation Pyxis. It varies between magnitudes 6.09 and 6.51,^[3] pulsating to multiple periods simultaneously of 55.5, 57.9, 86.7, 162.9 and 232.6 days.^[1] Located around 1228 light-years distant, it shines with a luminosity approximately 1500 times that of the Sun and has a surface temperature of 3410 K.^[4]

References edit

^ ^a ^b Tabur, V.; Bedding, T.R. (2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society. 400 (4): 1945–61. arXiv:0908.3228. Bibcode:2009MNRAS.400.1945T. doi:10.1111/j.1365-2966.2009.15588.x. S2CID 15358380.
^ ^a ^b ^c ^d ^e van Leeuwen, F. (November 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 ^c ^d Watson, Christopher (25 August 2009). "AK Pyxidis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 29 July 2015.
^ ^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* AK Pyx". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 5 September 2015.

[tabur-1] Tabur, V.; Bedding, T.R. (2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society. 400 (4): 1945–61. arXiv:0908.3228. Bibcode:2009MNRAS.400.1945T. doi:10.1111/j.1365-2966.2009.15588.x. S2CID 15358380.

[vanLeeuwen2007-2] van Leeuwen, F. (November 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

[AAVSOAK-3] Watson, Christopher (25 August 2009). "AK Pyxidis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 29 July 2015.

[Mcdonald-4] 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-5] "V* AK Pyx". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 5 September 2015.

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Observation data Epoch J2000 Equinox J2000
A visual band light curve for AK Pyxidis, plotted from data published by Tabur et al. (2009)^[1]
Constellation	Pyxis
Right ascension	08^h 48^m 14.62631^s^[2]
Declination	−28° 38′ 19.6757″^[2]
Apparent magnitude (V)	6.09-6.51^[3]
Characteristics
Spectral type	M5III ^[3]
Variable type	semiregular variable^[3]
Astrometry

Proper motion (μ)	RA: -10.60 ± 0.29^[2] mas/yr Dec.: −8.05 ± 0.29^[2] mas/yr
Parallax (π)	4.68 ± 0.41 mas^[2]
Distance	700 ± 60 ly (210 ± 20 pc)

Details

Luminosity	1500^[4] `L`_☉
Temperature	3410 K^[4] K

Other designations
AK Pyxidis, CD−61° 1428, HD 75306, HIP 43215, SAO 176496.^[5]
Database references
SIMBAD	data

Summary

References edit