HD 126009
HD 126009 or CI Boötis is a variable star[3] in the northern constellation of Boötes.
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Boötes |
Right ascension | 14h 22m 14.00145s[1] |
Declination | +29° 22′ 11.7169″[1] |
Apparent magnitude (V) | 6.6[2] |
Characteristics | |
Spectral type | M3III[3] |
U−B color index | +1.46[2] |
B−V color index | +1.60[2] |
Variable type | Irregular[4] |
Astrometry | |
Radial velocity (Rv) | −19.66±0.54[5] km/s |
Proper motion (μ) | RA: -38.37[1] mas/yr Dec.: -25.87[1] mas/yr |
Parallax (π) | 4.23 ± 0.47[1] mas |
Distance | approx. 770 ly (approx. 240 pc) |
Details | |
Luminosity | 1,875[6] L☉ |
Temperature | 3,387[6] K |
Other designations | |
CI Boötes, BD+30° 2513, HD126009, HIP 70236, SAO 83312. | |
Database references | |
SIMBAD | data |
References
- 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.
- Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data.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, 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
- Mennessier, M. O.; et al. (August 2001), "Long period variable stars: galactic populations and infrared luminosity calibrations", Astronomy and Astrophysics, 374: 968–979, arXiv:astro-ph/0105552, Bibcode:2001A&A...374..968M, doi:10.1051/0004-6361:20010764.
- 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.
- 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
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