| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 16h 54m 00.36029s [2] |
| Declination | −57° 54′ 34.2317″ [2] |
| Apparent magnitude (V) | 5.92 [3] |
| Characteristics | |
| Spectral type | M1III [4] |
| U−B color index | +1.92 [3] |
| B−V color index | +1.60 [3] |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | -40.7 [5] km/s |
| Proper motion (μ) |
RA: -40.18
[2]
mas/
yr Dec.: -123.26 [2] mas/ yr |
| Parallax (π) | 4.60 ± 0.47 mas [2] |
| Distance | approx. 710
ly (approx. 220 pc) |
| Details | |
| Radius | 53 [6] R☉ |
| Luminosity | 637 [7] L☉ |
| Temperature | 3,839 [7] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 151967 is suspected variable star in the southern constellation of Ara. It is a sixth magnitude star, [3] which means it is just visible to the naked eye in dark skies. Parallax measurements place it at a distance of approximately 710 light years from the Earth. [2]
This is a red giant with a stellar classification of M1III; [4] it has expanded to 53 [6] times the radius of the Sun and radiates 637 [7] times the Sun's luminosity. The star varies in brightness by an amplitude of 0.0156 in magnitude over a period of 26 days. [8] The effective temperature of the outer atmosphere is 3,839 K, [7] giving it the ruddy hue of an M-type star. [9]
References
- ^ "Light Curve", Hipparcos ESA, ESA, retrieved 29 September 2022.
- ^ a b c d e f 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- ^ a b c d Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data.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 Houk, Nancy; Cowley, A. P. (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode: 1978mcts.book.....H.
- ^ Evans, D. S. (June 20–24, 1966), Batten, Alan Henry; Heard, John Frederick (eds.), "The Revision of the General Catalogue of Radial Velocities", Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, vol. 30, University of Toronto: International Astronomical Union, p. 57, Bibcode: 1967IAUS...30...57E.
- ^ a b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367 (2): 521–524, arXiv: astro-ph/0012289, Bibcode: 2001A&A...367..521P, doi: 10.1051/0004-6361:20000451, S2CID 425754.
- ^ a b c d 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.
- ^ Koen, Chris; Eyer, Laurent (March 2002), "New periodic variables from the Hipparcos epoch photometry", Monthly Notices of the Royal Astronomical Society, 331 (1): 45–59, arXiv: astro-ph/0112194, Bibcode: 2002MNRAS.331...45K, doi: 10.1046/j.1365-8711.2002.05150.x, S2CID 10505995.
- ^ "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on March 18, 2012, retrieved 2015-08-25.
External links
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Star clusters |
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 | This variable star–related article is a stub. You can help Wikipedia by expanding it. |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 16h 54m 00.36029s [2] |
| Declination | −57° 54′ 34.2317″ [2] |
| Apparent magnitude (V) | 5.92 [3] |
| Characteristics | |
| Spectral type | M1III [4] |
| U−B color index | +1.92 [3] |
| B−V color index | +1.60 [3] |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | -40.7 [5] km/s |
| Proper motion (μ) |
RA: -40.18
[2]
mas/
yr Dec.: -123.26 [2] mas/ yr |
| Parallax (π) | 4.60 ± 0.47 mas [2] |
| Distance | approx. 710
ly (approx. 220 pc) |
| Details | |
| Radius | 53 [6] R☉ |
| Luminosity | 637 [7] L☉ |
| Temperature | 3,839 [7] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 151967 is suspected variable star in the southern constellation of Ara. It is a sixth magnitude star, [3] which means it is just visible to the naked eye in dark skies. Parallax measurements place it at a distance of approximately 710 light years from the Earth. [2]
This is a red giant with a stellar classification of M1III; [4] it has expanded to 53 [6] times the radius of the Sun and radiates 637 [7] times the Sun's luminosity. The star varies in brightness by an amplitude of 0.0156 in magnitude over a period of 26 days. [8] The effective temperature of the outer atmosphere is 3,839 K, [7] giving it the ruddy hue of an M-type star. [9]
References
- ^ "Light Curve", Hipparcos ESA, ESA, retrieved 29 September 2022.
- ^ a b c d e f 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 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 Houk, Nancy; Cowley, A. P. (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode: 1978mcts.book.....H.
- ^ Evans, D. S. (June 20–24, 1966), Batten, Alan Henry; Heard, John Frederick (eds.), "The Revision of the General Catalogue of Radial Velocities", Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, vol. 30, University of Toronto: International Astronomical Union, p. 57, Bibcode: 1967IAUS...30...57E.
- ^ a b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367 (2): 521–524, arXiv: astro-ph/0012289, Bibcode: 2001A&A...367..521P, doi: 10.1051/0004-6361:20000451, S2CID 425754.
- ^ a b c d 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.
- ^ Koen, Chris; Eyer, Laurent (March 2002), "New periodic variables from the Hipparcos epoch photometry", Monthly Notices of the Royal Astronomical Society, 331 (1): 45–59, arXiv: astro-ph/0112194, Bibcode: 2002MNRAS.331...45K, doi: 10.1046/j.1365-8711.2002.05150.x, S2CID 10505995.
- ^ "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on March 18, 2012, retrieved 2015-08-25.
External links
| Stars |
| ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||
|
Star clusters |
| ||||||||||
| Nebulae |
| ||||||||||
| Galaxies |
| ||||||||||
|
| This variable star–related article is a stub. You can help Wikipedia by expanding it. |