15 Draconis

This article is about A Draconis. Not to be confused with Alpha Draconis.
15 Draconis
Observation data
Epoch J2000      Equinox J2000
Constellation Draco
Right ascension 16h 27m 59.01603s[1]
Declination +68° 46′ 05.3051″[1]
Apparent magnitude (V) 4.94[2]
Characteristics
Spectral type A0 III[3]
B−V color index −0.051±0.006[2]
Astrometry
Radial velocity (Rv)−6.7±2.8[2] km/s
Proper motion (μ) RA: −24.818[1] mas/yr
Dec.: +33.623[1] mas/yr
Parallax (π)7.2102 ± 0.1296 mas[1]
Distance452 ± 8 ly
(139 ± 2 pc)
Absolute magnitude (MV)−0.93[2]
Details
Radius3.3[4] R☉
Luminosity285.53[2] L☉
Surface gravity (log g)3.4[5] cgs
Temperature9,980[5] K
Rotational velocity (v sin i)154[6] km/s
Other designations
A Draconis, 15 Dra, BD+69° 850, FK5 619, HD 149212, HIP 80650, HR 6161, SAO 17107[7]
Database references
SIMBADdata

15 Draconis is a single[8] star in the northern circumpolar constellation of Draco, located 452 light years away from the Sun. 15 Draconis is the Flamsteed designation; it also has the Bayer designation A Draconis.[9] This object is visible to the naked eye as a white-hued star with an apparent visual magnitude of 4.94.[2] It is moving closer to the Earth with a heliocentric radial velocity of −7 km/s.[2]

This star has a stellar classification of A0 III,[3] matching that of an A-type giant star. It has a relatively high rate of spin with a projected rotational velocity of 154 km/s.[6] The star is radiating 286[2] times the Sun's luminosity from its photosphere at an effective temperature of 9,980 K.[5]

  1. ^ a b c d e Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f g h Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Cowley1972 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference CADARS was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Baines2017 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Royer2002 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference xref was invoked but never defined (see the help page).