HD 182893

HD 182893
Location of HD 182893 (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Telescopium
Right ascension 19h 29m 52.61028s[1]
Declination −55° 26′ 30.3051″[1]
Apparent magnitude (V) 6.13±0.01[2]
Characteristics
Spectral type K0/1 III[3]
U−B color index +0.81[4]
B−V color index +0.98[4]
Astrometry
Radial velocity (Rv)−27.1±0.4[5] km/s
Proper motion (μ) RA: +23.472 mas/yr[1]
Dec.: −65.581 mas/yr[1]
Parallax (π)9.9485 ± 0.0394 mas[1]
Distance328 ± 1 ly
(100.5 ± 0.4 pc)
Absolute magnitude (MV)+1.23[6]
Details[7]
Mass2.42±0.04 M☉
Radius8.08±0.16 R☉
Luminosity36.9±0.8 L☉
Surface gravity (log g)2.94±0.08 cgs
Temperature5,006±41 K
Metallicity [Fe/H]+0.16±0.03 dex
Rotational velocity (v sin i)1.4±1.2[8] km/s
Age761±9[9] Myr
Other designations
60 G. Telescopii[10], CD−55°8180, CPD−55°9096, GC 26883, HD 182893, HIP 95866, HR 7388, SAO 246125[11]
Database references
SIMBADdata

HD 182893, also known as HR 7388 or rarely 60 G. Telescopii, is a solitary, yellowish-orange hued star located in the southern constellation Telescopium. It has an apparent magnitude of 6.13,[2] making it barely visible to the naked eye even under ideal conditions. Based on Gaia DR3 parallax measurements, the object is estimated to be 328 light years away.[1] However, it is approaching the Solar System with a heliocentric radial velocity of −27 km/s.[5] At its current distance, HD 182893's brightness is diminished by 0.19 magnitudes due to interstellar dust.[12] It has an absolute magnitude of +1.23.[6]

HD 182893 has a stellar classification of K0/1 III,[3] indicating that it is an evolved K-type star with the characteristics of a K0 and K1 giant star. It has 2.42 times the mass of the Sun[7] but at the age of 761 million years,[9] it has expanded to 8.08 times the radius of the Sun. It radiates 36.9 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 5,006 K.[7] HD 182893 is particularly metal enriched with an iron abundance 145% that of the Sun's ([Fe/H] = +0.16).[7] Like most giant stars it spins slowly, having a projected rotational velocity of 1.4 km/s.[8]

  1. ^ a b c d e Cite error: The named reference GaiaDR3 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 Houk1975 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Oja1970 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b c d Cite error: The named reference Ottoni2022 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference De Medeiros2014 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Gomes da Silva2021 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Gould1879 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Gontcharov2017 was invoked but never defined (see the help page).