HD 33283
In this article, we will explore the topic of HD 33283 in detail, addressing its different facets and perspectives from a holistic view. HD 33283 is a topic of great relevance today, which has generated extensive debate and interest in various areas. Over the next few lines, we will analyze the historical background of HD 33283, its impact on contemporary society, as well as the possible future implications it could have. We will delve into its deepest aspects, with the aim of offering a comprehensive and enriching vision of HD 33283, which allows our readers to obtain a greater understanding and perspective on this very relevant topic.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lepus |
| Right ascension | 05h 08m 01.0123s[1] |
| Declination | −26° 47′ 50.8941″[1] |
| Apparent magnitude (V) | 8.05[2] |
| Characteristics | |
| Spectral type | G3/5V[2] + M4–5[3] |
| B−V color index | 0.641±0.009[2] |
| Astrometry | |
| Radial velocity (Rv) | +4.51±0.19[2] km/s |
| Proper motion (μ) | RA: 56.184[1] mas/yr Dec.: −46.058[1] mas/yr |
| Parallax (π) | 11.0993±0.0286 mas[1] |
| Distance | 293.9 ± 0.8 ly (90.1 ± 0.2 pc) |
| Absolute magnitude (MV) | 3.19[2] |
| Details | |
| HD 33283 | |
| Mass | 1.39±0.04 M☉[4] 1.24±0.1[5] M☉ |
| Radius | 1.95±0.04 R☉[4] 1.20±0.1[5] R☉ |
| Luminosity | 4.37±0.02[4] L☉ |
| Surface gravity (log g) | 3.99±0.03[4] cgs |
| Temperature | 5,985±57[4] K |
| Metallicity | 0.35±0.08[2] dex |
| Rotational velocity (v sin i) | 1.09±0.26[6] km/s |
| Age | 3.6±0.6[4] Gyr |
| HD 33283 B | |
| Mass | 0.17[3] M☉ |
| Other designations | |
| CD–26°2029, FK5 4470, Gaia DR2 2955981936912654592, GC 6286, HD 33283, HIP 23889, SAO 170100, PPM 75021, 2MASS J05080100-2647509[7] | |
| Database references | |
| SIMBAD | data |
HD 33283 is a star in the southern constellation Lepus with one planet and a co-moving stellar companion.[3] With an apparent visual magnitude of 8.05,[2] the star is too faint to be seen with the naked eye. It is located at a distance of 294 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +4.5.[2]
This is an ordinary G-type main-sequence star with a stellar classification of G3/5V.[2] It is about 3.6 billion years old and is chromospherically inactive. The star is spinning slowly with a projected rotational velocity of 1 km/s[6] and an estimated rotation period of about 55.5 days.[5] It is larger and more massive than the Sun. HD 33283 is radiating over four times the luminosity of the Sun from its photosphere at an effective temperature of 5,985 K.[4]
In 2014, a co-moving red dwarf companion star, HD 33283 B, of spectral class M4–M5 was detected at an angular separation of 55.7″, corresponding to a projected separation of 5,244 AU.[3]
Planetary system
In 2006, J. A. Johnson and associates found a jovian planet orbiting HD 33283 with the radial velocity method.[5] It is orbiting at a distance of 0.15 AU (22 Gm) from the host star with a period of 18.2 days and an eccentricity (ovalness) of 0.4.[8]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥0.329±0.071 MJ | 0.1508±0.0087 | 18.1991±0.0017 | 0.399±0.056 | — | — |
See also
References
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c d e f g h i Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.
- ^ a b c d Mugrauer, M.; et al. (March 2014). "New wide stellar companions of exoplanet host stars". Monthly Notices of the Royal Astronomical Society. 439 (1): 1063–1070. Bibcode:2014MNRAS.439.1063M. doi:10.1093/mnras/stu044.
- ^ a b c d e f g Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951. S2CID 54555839.
- ^ a b c d Johnson, John Asher; et al. (2006). "The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets". The Astrophysical Journal. 647 (1): 600–611. arXiv:astro-ph/0604348. Bibcode:2006ApJ...647..600J. doi:10.1086/505173. S2CID 12421834.
- ^ a b Jofré, E.; et al. (2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422. Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474. S2CID 53666931.
- ^ "HD 33283". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-06-25.
{{cite web}}: CS1 maint: postscript (link) - ^ a b Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619.
External links
- "Notes for star HD 33283". Extrasolar Planets Encyclopaedia. Archived from the original on November 6, 2007.
