HD 108541
In this article we are going to address HD 108541, a topic of great relevance today. HD 108541 is an issue that has generated great interest and debate in various areas, whether in the academic, professional or social sphere. Over the years, HD 108541 has captured the attention of experts and society in general, due to its impact and implications in different aspects of daily life. In this article, we propose to analyze and delve into the different aspects related to HD 108541, with the aim of providing a global and enriching vision of this topic. Through a comprehensive and detailed approach, we aim to offer a comprehensive perspective that allows the reader to understand and reflect on HD 108541 from different perspectives.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 12h 28m 22.46490s[1] |
| Declination | −39° 02′ 28.2168″[1] |
| Apparent magnitude (V) | 5.448[2] |
| Characteristics | |
| Spectral type | B8/9V[2] |
| B−V color index | -0.08[3] |
| Astrometry | |
| Radial velocity (Rv) | 5.00[4] km/s |
| Proper motion (μ) | RA: -28.01[1] mas/yr Dec.: -13.76[1] mas/yr |
| Parallax (π) | 7.47±0.28 mas[1] |
| Distance | 440 ± 20 ly (134 ± 5 pc) |
| Absolute magnitude (MV) | 0.28[5] |
| Details | |
| Mass | 2.9[5] M☉ |
| Luminosity | 265[6] L☉ |
| Temperature | 10990[5] K |
| Age | 0.174[5] Gyr |
| Other designations | |
| u Cen, CD–34° 7753, HD 108541, HIP 60855, SAO 203508, HR 4748, GC 17001[2] | |
| Database references | |
| SIMBAD | data |
HD 108541, also known by its Bayer designation u Centauri is a star located in the constellation Centaurus, It is also known as HR 4748. The apparent magnitude of the star is about 5.4, meaning it is only visible to the naked eye under excellent viewing conditions. Its distance is about 440 light-years (140 parsecs), based on its parallax measured by the Hipparcos astrometry satellite.[1] The spectral type of HD 108541 is B8/9V, meaning it is a late B-type main sequence star. These types of stars are a few times more massive than the Sun, and have effective temperatures of about 10,000 to 30,000 K. HD 108541 is just under 3 times more massive than the Sun[5] and has a temperature of about 11,000 K.[5]
References
- ^ a b c d e f 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 "* u Cen". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 February 2017.
- ^ Corben, P. M. (1966). "Photoelectric magnitudes and colours for bright southern stars". Monthly Notes of the Astron. Soc. Southern Africa. 25: 44. Bibcode:1966MNSSA..25...44C.
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
- ^ a b c d e f Grosbol, P. J. (1978). "Space velocities and ages of nearby early-type stars". Astronomy and Astrophysics Supplement Series. 32: 409–421. Bibcode:1978A&AS...32..409G.
- ^ de Vaucouleurs, A. (1957). "Spectral types and luminosities of B, A and F southern stars". Monthly Notices of the Royal Astronomical Society. 117 (4): 449. Bibcode:1957MNRAS.117..449D. doi:10.1093/mnras/117.4.449.
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