Star in the constellation Draco
HD 158633 is a main sequence star in the northern constellation of Draco . With an apparent visual magnitude of
6.43, this star is a challenge to view with the unaided eye but it can be seen clearly with a small telescope . Based upon parallax measurements, it is located at a distance of around 42 light years from the Sun. The star is drifting closer to the Sun with a radial velocity of −39 km/s, and is predicted to come to within 26.5 ly (8.1 pc) in around 190,400 years.
This is a K-type main sequence star with a spectral classification of K0 V. It has about 79% of the Sun's radius and 73% of the solar mass . It is an estimated 4.3 billion years old and is spinning with a projected rotational velocity of 3.4 km/s. The star is emitting an excess of infrared radiation at a wavelength of 70 μm, suggesting the presence of an orbiting debris disk . It has a low metallicity , with only 37% of the Sun's abundance of elements more massive than helium, and has a relatively high proper motion .
References
^ 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 .
^ 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 .
^ Hauck, B.; Mermilliod, M. (1998). "uvbyβ photoelectric photometric catalogue" . Astronomy and Astrophysics Supplement Series . 129 (3): 431–433. Bibcode :1998A&AS..129..431H . doi :10.1051/aas:1998195 .
Kovtyukh, V. V.; et al. (2004). "A new Böhm-Vitense gap in the temperature range 5560 to 5610 K in the main sequence". Astronomy and Astrophysics . 427 (3): 933–936. arXiv :astro-ph/0409753 . Bibcode :2004A&A...427..933K . doi :10.1051/0004-6361:20041449 . S2CID 204935981 .
^ Boyajian, Tabetha S.; et al. (July 2013), "Stellar Diameters and Temperatures. III. Main-sequence A, F, G, and K Stars: Additional High-precision Measurements and Empirical Relations", The Astrophysical Journal , 771 (1): 31, arXiv :1306.2974 , Bibcode :2013ApJ...771...40B , doi :10.1088/0004-637X/771/1/40 , S2CID 14911430 , 40. See Table 3.
Luck, R. Earle; Heiter, Ulrike (2006). "Dwarfs in the Local Region" . The Astronomical Journal . 131 (6): 3069–3092. Bibcode :2006AJ....131.3069L . doi :10.1086/504080 .
^ Beichman, C. A.; et al. (2006). "New Debris Disks Around Nearby Main-Sequence Stars: Impact on the Direct Detection of Planets". The Astrophysical Journal . 652 (2): 1674–1693. arXiv :astro-ph/0611682 . Bibcode :2006ApJ...652.1674B . doi :10.1086/508449 . S2CID 14207148 .
^ Luck, R. Earle (January 2017), "Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants", The Astronomical Journal , 153 (1): 19, arXiv :1611.02897 , Bibcode :2017AJ....153...21L , doi :10.3847/1538-3881/153/1/21 , S2CID 119511744 , 21.
^ "LHS 3287" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2009-04-14.
Bailer-Jones, C. A. L. (January 2018), "The completeness-corrected rate of stellar encounters with the Sun from the first Gaia data release", Astronomy & Astrophysics , 609 : 16, arXiv :1708.08595 , Bibcode :2018A&A...609A...8B , doi :10.1051/0004-6361/201731453 , S2CID 119462489 , A8
Categories :
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
**DISCLAIMER** We are not affiliated with Wikipedia, and Cloudflare.
The information presented on this site is for general informational purposes only and does not constitute medical advice.
You should always have a personal consultation with a healthcare professional before making changes to your diet, medication, or exercise routine.
AI helps with the correspondence in our chat.
We participate in an affiliate program. If you buy something through a link, we may earn a commission 💕
↑
Category