Omicron Capricorni

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

Template:Short description

Omicron Capricorni
Template:Location mark
Location of ο Capricorni (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Capricornus
ο Cap A
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) +5.94[2]
ο Cap B
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) +6.74[2]
Characteristics
ο Cap A
Spectral type A1 V[3]
U−B Template:Engvar +0.30[2]
B−V Template:Engvar +0.08[2]
ο Cap B
Spectral type A7/8 V[3]
U−B Template:Engvar +0.04[2]
B−V Template:Engvar +0.22[2]
Astrometry
ο Cap A
Radial velocity (Rv)Script error: No such module "val".[4] km/s
Proper motion (μ) RA: +31.70[1] mas/yr
Dec.: −83.18[1] mas/yr
Parallax (π)15.07±4.14 mas[1]
Distanceapprox. Template:Rnd ly
(approx. Template:Rnd pc)
ο Cap B
Radial velocity (Rv)Script error: No such module "val".[4] km/s
Proper motion (μ) RA: +33.31[1] mas/yr
Dec.: −66.16[1] mas/yr
Details
ο Cap A
MassScript error: No such module "val".[5] Template:Solar mass
Luminosity18.6[5] Template:Solar luminosity
Surface gravity (log g)4.23[6] cgs
TemperatureScript error: No such module "val".[6] K
Rotational velocity (v sin i)276[7] km/s
Age118[6] Myr
ο Cap B
MassScript error: No such module "val".[5] Template:Solar mass
Temperature7,762[5] K
Metallicity [Fe/H]{{{metal_fe2}}} dex
Rotational velocity (v sin i)136[7] km/s
Other designations
Template:Odlist[8]
ο Cap A: Template:Odlist[9]
ο Cap B: Template:Odlist[10]
Database references
SIMBADA
B

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

Omicron Capricorni (ο Capricorni) is a wide binary star[11] system in the constellation Capricornus.[12] The brighter component has an apparent visual magnitude of +5.94,[2] which is near the lower limit on stellar brightness that still can be seen with the naked eye. Based upon an annual parallax shift of 15.07 mas as seen from Earth,[1] this system is located roughly 220 light-years from the Sun. Large but uncertain discrepancies in the parallax measurements from Hipparcos may indicate, weakly, that there is a third, unseen companion in the system.[11]

Both visible components are white-hued A-type main-sequence stars.[3] The primary, component A, sometimes called ο1 Capricorni, has an apparent magnitude of +5.94, while the companion, component B or ο2 Capricorni, has an apparent magnitude of +6.74.[2] The two stars are currently separated by 21.91[11] arcseconds, corresponding to a projected separation of around Script error: No such module "val"..[13] At the estimated age of around 118[6] million years old, both components are spinning rapidly: component A has a projected rotational velocity of 276 km/s, while component B is 136 km/s.[7]

References

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

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

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

Template:Stars of Capricornus

Retrieved from "http://debianws.lexgopc.com/wiki143/index.php?title=Omicron_Capricorni&oldid=2832636"