HD 48265

HD 48265 / Nosaxa
Observation data
Epoch J2000      Equinox J2000
Constellation Puppis
Right ascension 06h 40m 01.7270s[1]
Declination −48° 32′ 31.042″[1]
Apparent magnitude (V) 8.07[2]
Characteristics
Spectral type G5IV/V[3]
Apparent magnitude (B) ~8.80[2]
Apparent magnitude (J) 6.842 ± 0.021[4]
Apparent magnitude (H) 6.529 ± 0.061[4]
Apparent magnitude (K) 6.449 ± 0.020[4]
Astrometry
Radial velocity (Rv)22.5 ± 0.2[5] km/s
Proper motion (μ) RA: 26.524±0.089[1] mas/yr
Dec.: 29.689±0.095[1] mas/yr
Parallax (π)11.14 ± 0.21 mas[1]
Distance293 ± 6 ly
(90 ± 2 pc)
Absolute magnitude (MV)3.34[6]
Details
Mass0.93[6] M
Radius2.34 ± 0.26[7] R
Luminosity0.623 ± 0.058[7] L
Temperature5,508[5] K
Metallicity [Fe/H]0.29 ± 0.05[2] dex
Rotational velocity (v sin i)3.0[7] km/s
Age4.8[5] Gyr
Other designations
Nosaxa, CD–48 2430, HD 48265, HIP 31895, SAO 218115.[8]
Database references
SIMBADdata
Exoplanet Archivedata

HD 48265 is the Henry Draper Catalogue designation for a star in the southern constellation Puppis. It has an apparent visual magnitude of 8.07,[2] which makes it too faint to be seen with the naked eye. Based upon parallax measurements made during the Hipparcos mission, it is located at a distance of roughly 293 light-years (90 parsecs) from Earth.[1]

This star has a stellar classification of G5IV/V,[3] suggesting that, at an age of 4.8 billion years,[5] it has reached an intermediate evolutionary stage between a main sequence star and a subgiant. It has but 93% of the mass of the Sun,[6] while its outer atmosphere has begun to expand, reaching about 2.3 times the Sun's radius.[7] HD 48265 is radiating 62%[7] of the Sun's luminosity from its atmosphere at an effective temperature of 5,508 K,[5] giving it the yellowish glow of a G-type star.[9] Measurement of the chemical abundances of this star indicate that, compared to the Sun, it has a 95%[2] greater proportion of elements other than hydrogen and helium—what astronomers term the star's metallicity.

  1. ^ a b c d e f Cite error: The named reference Gaia2016 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference aaa485_2_571 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference 2MASS was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference aaa418_989 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference MAGELLAN was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference exoplanet was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).