47 Boötis

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Template:Short description Template:About-distinguish

47 Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 5.581[2]
Characteristics
Evolutionary stage main sequence[3]
Spectral type A0 Vs[4]
B−V Template:Engvar Script error: No such module "val".[5]
Variable type suspected[6]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[2] km/s
Proper motion (μ) RA: −65.912[1] mas/yr
Dec.: +28.641[1] mas/yr
Parallax (π)12.4980±0.0766 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)0.97[5]
Details
47 Boo A
MassScript error: No such module "val".[3] Template:Solar mass
Radius1.8[7] Template:Solar radius
LuminosityScript error: No such module "val".[2] Template:Solar luminosity
Surface gravity (log g)4.32[2] cgs
Temperature10,130[2] K
Rotational velocity (v sin i)Script error: No such module "val".[2] km/s
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[8]
Database references
SIMBADdata

Script error: No such module "Check for unknown parameters".

47 Boötis is a binary star[9] system in the northern constellation of Boötes,[8] located 261 light years away from the Sun.[1] It has the Bayer designation k Boötis; 47 Boötis is the Flamsteed designation.[8] The system is visible to the naked eye as a faint, white-hued star with a combined apparent visual magnitude of 5.58.[2] It is moving closer to the Earth with a heliocentric radial velocity of −13 km/s.[2]

The primary member of the system, designated component A, is an A-type main-sequence star with a stellar classification of A0 Vs.[4] The 's' indicates sharp lines as it has a moderate rotation rate with a projected rotational velocity of 55 km/s.[2] It is a suspected variable star of unknown type.[10] The star has 2.46[3] times the mass of the Sun and is radiating 46[2] times the Sun's luminosity from its photosphere at an effective temperature of 10,130 K.[2]

The companion, component B, is a magnitude 13.3 star located at an angular separation of Script error: No such module "val". away from the primary.[9]

References

<templatestyles src="Reflist/styles.css" />

  1. ↑ a b c d e f Template:Cite DR2
  2. ↑ a b c d e f g h i j k Script error: No such module "citation/CS1".
  3. ↑ a b c Script error: No such module "citation/CS1".
  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ a b c Template:Cite simbad
  9. ↑ a b Script error: No such module "citation/CS1".
  10. ↑ Script error: No such module "citation/CS1".

Script error: No such module "Check for unknown parameters".

Template:Stars of Boötes

Retrieved from "http://debianws.lexgopc.com/wiki143/index.php?title=47_Boötis&oldid=2018847"