Peter 163

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Stern
Gliese 163
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Swordfish
Right ascension 04 h 09 m 15.67 s
declination -53 ° 22 ′ 25.3 ″
Apparent brightness 11.8 mag
Typing
Known exoplanets 5
B − V color index (1.19) 
U − B color index (1.09) 
R − I index (1.40) 
Spectral class M3.5
Astrometry
parallax (66.07 ± 0.03)  mas
distance (49.34 ± 0.02)  ly
Visual absolute brightness M vis +11 likes
Proper movement 
Rec. Share: (1046.14 ± 0.06)  mas / a
Dec. portion: (584.13 ± 0.07)  mas / a
Physical Properties
Dimensions (0.40 ± 0.02)  M
Luminosity

(0.02)  L

Effective temperature (3500 ± 100)  K.
Metallicity [Fe / H] (0.10 ± 0.10)
Other names
and catalog entries
Gliese catalog FY 163 [1]
Hipparcos catalog HIP 19394 [2]
Tycho catalog TYC 8502-1934-1 [3]Template: Infobox star / maintenance / specification of the TYC catalog
2MASS catalog 2MASS J04091567-5322254 [4]
Other names LHS 188

Gliese 163 is a red dwarf of the spectral class M3.5, which is located around 49  light years (15  pc ) from the sun in the constellation Swordfish and is probably circled by 5 planetary companions. The object has an apparent magnitude of 11.8 mag and an absolute magnitude of +11 mag.

Planetary companions

In September 2012, the discovery of at least two exoplanets around Gliese 163 with the help of the HARPS instrument was announced. The innermost planet, Gliese 163 b, has an orbital period of almost 9 days and about 10 times the mass of the earth. The next Gliese 163 c has a period of about 26 days and is located on the inner edge of the habitable zone . Its minimum mass is about 8 earth masses. In 2013 the discovery of Gliese 163 d was announced, which is located much further out with an orbital period of about 600 days. In 2019 the discovery of the planets Gliese 163 e and f was announced.

Planetary system of Gliese 163
Planet
(by distance from the star)
Discovery
(year)
Minimum dimensions
(in M )
Cycle time
(in days)
Major semi-axis
(in AU )
eccentricity
b 2012 10 8.63 0.06 0.02
c 2012 8th 25.64 0.12 0.03
f 2019 7th 109.5 0.33 0.04
e 2019 14th 349 0.7 0.03
d 2013 20th 604 1.02 0.02

Web links

Individual evidence

  1. a b c d e f g h L 229-91. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on September 21, 2019 .
  2. a b Catalog. In: Extrasolar Planets Encyclopaedia . Retrieved September 21, 2019 .
  3. a b c d GJ 163. NASA Exoplanet Archive , accessed September 21, 2019 .