HD 183552

HD 183552
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
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 mas/yr[1]
Dec.: −7.392 mas/yr[1]
Parallax (π)9.6769 ± 0.1128 mas[1]
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
62 G. Telescopium[12], CPD−53°9585, GC 26959, HD 183552, HIP 96141, HR 7411, SAO 246151[13]
Database references
SIMBADdata

HD 183552, also known as HR 7411, is a probable spectroscopic binary[14] 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]

  1. ^ a b c d e f g h Cite error: The named reference DR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Jaschek1960 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Feinstein1974 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Kharchenko2007 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Stassun2019 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Chanlder2016 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference DR2 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference McDonald2017 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Bai2019 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Gould1879 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).