Delta1 Canis Minoris

For other stars with this Bayer designation, see δ Canis Minoris.
δ1 Canis Minoris
Location of δ1 Canis Minoris (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Canis Minor
Right ascension 07h 32m 05.94912s[1]
Declination +01° 54′ 52.1263″[1]
Apparent magnitude (V) +5.25[2]
Characteristics
Evolutionary stage Giant star or main sequence star
Spectral type F0 III[3] or F0 V[4]
U−B color index +0.20[2]
B−V color index +0.22[2]
Astrometry
Radial velocity (Rv)+29.1±2.8[5] km/s
Proper motion (μ) RA: −1.64[1] mas/yr
Dec.: −1.10[1] mas/yr
Parallax (π)4.29 ± 0.27 mas[1]
Distance760 ± 50 ly
(230 ± 10 pc)
Absolute magnitude (MV)−1.59[6]
Details
Luminosity319[7] L☉
Surface gravity (log g)3.64±0.09[8] cgs
Temperature7,623±86[8] K
Metallicity [Fe/H]+0.15±0.05[8] dex
Rotational velocity (v sin i)50[9] km/s
Other designations
δ1 CMi, 7 CMi, BD+02°1691, FK5 2587, GC 10085, HD 59881, HIP 36641, HR 2880, SAO 115581[10]
Database references
SIMBADdata

Delta1 Canis Minoris, Latinized from δ1 Canis Minoris, is a solitary,[11] yellow-white hued star in the constellation Canis Minor. It is faintly visible to the naked eye with an apparent visual magnitude of +5.25.[2] Based upon an annual parallax shift of 4.29 mas as seen from Earth,[1] this star is located roughly 760 light years from the Sun.

Houk and Swift (1999) list a stellar classification of F0 V[4] for Delta1 Canis Minoris, indicating it is an F-type main-sequence star. However, Cowley et al. (1969) gave it a class of F0 III, which would suggest it is instead an evolved giant star.[3] The spectrum displays a higher than solar metallicity – a term indicating the abundance of elements other than hydrogen and helium compared to the Sun. The star is spinning with a projected rotational velocity of 50[9] km/s and is radiating 319[7] times the Sun's luminosity from its photosphere at an effective temperature of 7,623 K.[8]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Johnson1966 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Houk1999 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference deBruijne2012 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 McDonald2012 was invoked but never defined (see the help page).
  8. ^ a b c d Cite error: The named reference Prugniel2011 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Jasniewicz2006 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).