Astronomy:HD 183552

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Short description: Star in the constellation of Telescopium
HD 183552
Observation data
Epoch J2000.0   Equinox (celestial coordinates)
Constellation Telescopium
Right ascension  19h 32m 53.82390s[1]
Declination −53° 11′ 08.2148″[1]
Apparent magnitude (V) 5.74±0.01[2]
Characteristics
Evolutionary stage main sequence[1]
Spectral type kA6 hF2 mF2 (II)[3]
U−B color index +0.19[4]
B−V color index +0.30[4]
Astrometry
Radial velocity (Rv)14.00±13.8[5] km/s
Proper motion (μ) RA: +36.270[1] mas/yr
Dec.: −7.392[1] mas/yr
Parallax (π)9.6769 ± 0.1128[1] mas
Distance337 ± 4 ly
(103 ± 1 pc)
Absolute magnitude (MV)+0.45[6]
Details
Mass1.68±0.29[7] M☉
Radius4.7[8] R☉
Luminosity45[9] L☉
Surface gravity (log g)3.26[10] cgs
Temperature7,317±282[11] K
Age733±8[1] Myr
Other designations
CPD−53°9585, GC 26959, HD 183552, HIP 96141, HR 7411, SAO 246151[12]
Database references
SIMBADdata

HD 183552, also known as HR 7411, is a probable spectroscopic binary[13] located in the southern constellation Telescopium. The system has a combined apparent magnitude of 5.74,[2] allowing it to be faintly visible to the naked eye. Based on parallax measurements from the Gaia spacecraft, it is estimated to be 337 light years distant.[1] The value is horribly constrained, but it appears to receding with a radial velocity of 14 km/s.[5]

This object is an Am star with a spectral classification of kA6hF2mF2 (II),[3] an evolved F-type star having the calcium K-line of an A6 star plus the hydrogen and metallic lines of an F2 star. Its current mass is 1.68 M☉[7] and is estimated to be 733 million years old,[1] having completed 83.1% of its main sequence lifetime. It has expanded to 4.7 times the radius of the Sun[8] and now radiates 45 times the luminosity of the Sun[9] from its photosphere at an effective temperature of 7,317 K.[11]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  2. ↑ 2.0 2.1 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P. et al. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355: L27–L30. ISSN 0004-6361. Bibcode: 2000A&A...355L..27H. 
  3. ↑ 3.0 3.1 Jaschek, Mercedes; Jaschek, Carlos (December 1960). "Southern Stars with Abnormal Spectra". Publications of the Astronomical Society of the Pacific 72 (429): 500. doi:10.1086/127590. ISSN 0004-6280. Bibcode: 1960PASP...72..500J. 
  4. ↑ 4.0 4.1 Feinstein, A. (November 1974). "Photoelectric UBVRI observations of AM stars". The Astronomical Journal 79: 1290. doi:10.1086/111675. ISSN 0004-6256. Bibcode: 1974AJ.....79.1290F. 
  5. ↑ 5.0 5.1 Kharchenko, N.V.; Scholz, R.-D.; Piskunov, A.E.; Röser, S.; Schilbach, E. (November 2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten 328 (9): 889–896. doi:10.1002/asna.200710776. ISSN 0004-6337. Bibcode: 2007AN....328..889K. 
  6. ↑ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331–346. doi:10.1134/S1063773712050015. ISSN 1063-7737. Bibcode: 2012AstL...38..331A. 
  7. ↑ 7.0 7.1 Stassun, Keivan G. et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S. 
  8. ↑ 8.0 8.1 Chandler, Colin Orion; McDonald, Iain; Kane, Stephen R. (17 February 2016). "The Catalog of Earth-Like Exoplanet Survey Targets (CELESTA): A Database of Habitable Zones Around Nearby Stars". The Astronomical Journal 151 (3): 59. doi:10.3847/0004-6256/151/3/59. Bibcode: 2016AJ....151...59C. 
  9. ↑ 9.0 9.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  10. ↑ McDonald, I.; Zijlstra, A. A.; Watson, R. A. (15 June 2017). "Fundamental parameters and infrared excesses of Tycho–Gaia stars". Monthly Notices of the Royal Astronomical Society 471 (1): 770–791. doi:10.1093/mnras/stx1433. ISSN 0035-8711. Bibcode: 2017MNRAS.471..770M. 
  11. ↑ 11.0 11.1 Bai, Yu; Liu, JiFeng; Bai, ZhongRui; Wang, Song; Fan, DongWei (2 August 2019). "Machine-learning Regression of Stellar Effective Temperatures in the Second Gaia Data Release". The Astronomical Journal 158 (2): 93. doi:10.3847/1538-3881/ab3048. Bibcode: 2019AJ....158...93B. 
  12. ↑ "HD 167714". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+167714. 
  13. ↑ Eggleton, P. P.; Tokovinin, A. A. (11 September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society 389 (2): 869–879. doi:10.1111/j.1365-2966.2008.13596.x. ISSN 0035-8711. Bibcode: 2008MNRAS.389..869E. 
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