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Eta Antliae

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Eta Antliae is a double star in the southern constellation of Antlia. The brighter component has an apparent visual magnitude of 5.222, which makes it visible from Earth from the naked eye. It is approximately 108 light years away from Earth.

The main component has a stellar classification of F1 V, which indicates that it is an F-type main sequence star. This star has 55% more mass than the Sun. It shines with 6.6 times the Sun's luminosity at an effective temperature of 7132 K (12377°F, 6858 °C). This heat gives it the yellow-white glow of an F-type star.

InformationEdit

Observation dataEdit

  • Constellation: Antlia
  • Right ascension: 09h 58m 52.27556s
  • Declination: –35° 53′ 27.5098″
  • Apparent magnitude (V):5.222

CharacteristicsEdit

  • Spectral type: F1 V
  • U-B color index: +0.068
  • B-V color index: +0.333

AstrometryEdit

  • Radial velocity (RV): +30 km/s
  • Proper motion (μ): RA: -89.65 mas/yr
  • Dec.: -17.23 mas/yr
  • Parallax (π): 30.02 ±0.24 mas
  • Distance 108.6 ± 0.9 light years
  • 33.3 ± 0.3 parasecs

DetailsEdit

  • Mass: 1.55 Solar mass
  • Luminosity: 6.6 Solar luminosity
  • Surface gravity (log g): 3.94 cgs
  • Temperature: 7132 K (12377°F, 6858 °C)
  • Metallicity [Fe/H] -0.20 dex
  • Age: 1 billion

Other designationsEdit

  • CD–35 6050
  • FK5 377
  • HD 86629
  • HIP 48926
  • HR 3947
  • SAO 200926

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