HD 126009

HD 126009
	; The visual band light curve of HD 126009, plotted from data presented by Tabur et al. (2009)
Observation data; Epoch J2000 Equinox J2000
Constellation	Boötes
Right ascension	14h 22m 14.00145s
Declination	+29° 22′ 11.7169″
Apparent magnitude (V)	6.6
Characteristics
Spectral type	M3III
U−B color index	+1.46
B−V color index	+1.60
Variable type	Irregular
Astrometry
Radial velocity (Rv)	−19.66±0.54 km/s
Proper motion (μ)	RA: -38.37 mas/yr ; Dec.: -25.87 mas/yr
Parallax (π)	4.23 ± 0.47 mas
Distance	approx. 770 ly ; (approx. 240 pc)
Details
Luminosity	1,875 L☉
Temperature	3,387 K
Other designations
	CI Boötes, BD+30° 2513, HD126009, HIP 70236, SAO 83312.
Database references
SIMBAD	data

HD 126009 or CI Boötis is a variable star^[4] in the northern constellation of Boötes.

References[]

^ Tabur, V.; Bedding, T. R.; Kiss, L. L.; Moon, T. T.; Szeidl, B.; Kjeldsen, H. (December 2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society. 400 (4): 1945–1961. doi:10.1111/j.1365-2966.2009.15588.x. Retrieved 5 November 2021.
^ ^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^ ^a ^b ^c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M
^ ^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
^ Mennessier, M. O.; et al. (August 2001), "Long period variable stars: galactic populations and infrared luminosity calibrations", Astronomy and Astrophysics, 374 (3): 968–979, arXiv:astro-ph/0105552, Bibcode:2001A&A...374..968M, doi:10.1051/0004-6361:20010764, S2CID 15721872.
^ Famaey, B.; et al. (2009). "Spectroscopic binaries among Hipparcos M giants,. I. Data, orbits, and intrinsic variations". Astronomy and Astrophysics. 498 (2): 627–640. arXiv:0901.0934. Bibcode:2009A&A...498..627F. doi:10.1051/0004-6361/200810698. S2CID 18739721.
^ ^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

External links[]

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[Tabur-1] Tabur, V.; Bedding, T. R.; Kiss, L. L.; Moon, T. T.; Szeidl, B.; Kjeldsen, H. (December 2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society. 400 (4): 1945–1961. doi:10.1111/j.1365-2966.2009.15588.x. Retrieved 5 November 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.

[MERMILLIOD-3] Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M

[tabur-4] 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

[aaa374_968-5] Mennessier, M. O.; et al. (August 2001), "Long period variable stars: galactic populations and infrared luminosity calibrations", Astronomy and Astrophysics, 374 (3): 968–979, arXiv:astro-ph/0105552, Bibcode:2001A&A...374..968M, doi:10.1051/0004-6361:20010764, S2CID 15721872.

[Famaey2009-6] Famaey, B.; et al. (2009). "Spectroscopic binaries among Hipparcos M giants,. I. Data, orbits, and intrinsic variations". Astronomy and Astrophysics. 498 (2): 627–640. arXiv:0901.0934. Bibcode:2009A&A...498..627F. doi:10.1051/0004-6361/200810698. S2CID 18739721.

[Mcdonald2012-7] 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

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Observation data Epoch J2000 Equinox J2000
The visual band light curve of HD 126009, plotted from data presented by Tabur et al. (2009)^[1]
Constellation	Boötes
Right ascension	14^h 22^m 14.00145^s^[2]
Declination	+29° 22′ 11.7169″^[2]
Apparent magnitude (V)	6.6^[3]
Characteristics
Spectral type	M3III^[4]
U−B color index	+1.46^[3]
B−V color index	+1.60^[3]
Variable type	Irregular^[5]
Astrometry

Radial velocity (R_v)	−19.66±0.54^[6] km/s
Proper motion (μ)	RA: -38.37^[2] mas/yr Dec.: -25.87^[2] mas/yr
Parallax (π)	4.23 ± 0.47^[2] mas
Distance	approx. 770 ly (approx. 240 pc)

Details

Luminosity	1,875^[7] `L`_☉
Temperature	3,387^[7] K

Other designations
CI Boötes, BD+30° 2513, HD126009, HIP 70236, SAO 83312.
Database references
SIMBAD	data