Tuesday, July 10, 2007

Lacaille 9352

Star type
g M0.5 Ve

Distance from Earth
g 10.73 ly

Star Service No.
g NA

g 8.4 billion years

Diameter/Mass/Temp (xSol)
g 1.08%; 47%; 3,340 K

Brightness (xSol)
g 1.1%

g About 10% of Sol's abundance of elements heavier than hydrogen

Comparison to Sol
g NA

Picture of star
g See picture
g See upper right of page (photo courtesy of ESO Online Digitized Sky Survey)

Star system features
g NA

Known planets
g No Jupiter sized object could be detected by the recent research using the Hubble Space Telescope

Habitable zone
g Accounting for infrared light, the distance from Lacaile 9352 where an Earth-type planet would be comfortable warm enough to have liquid water is about 0.22 AU. At that distance, the orbital period would be around 55 days, and the rotation of the planet may become tidally locked with the star so that one side would have perpetual daylight while the other would be in darkness. Moreover, the light emitted by red dwarfs may be too red in color for Earth-type plant life to perform photosynthesis efficiently..

Orbital map
g NA

View from star
g See sky map

Nearby stars
(Star systems with 10 light years)
g EZ Aquarii 3: 4.1 ly
g Cincinnati, 4.6 ly
g Epsilon Indi, 4.6 ly
g Lacaille 8760: 4.9 ly
g Gliese 876 / Ross 780, 6.7 ly
g Luyten 726-8: 6.7 ly
g YZ Ceti, 6.8 ly
g CD-49 13515, 7.3 ly
g Tau Ceti, 7.9 ly
g G 158-27, 8.5 ly
g L 722-22 AB, 9.4 ly
g Ross 154, 9.6 ly
g LHS 1565, 9.8 ly

Map locating star system
g See stellar map

Location in Earth sky
g In the southwestern edge of Constellation Piscis Australis (or Austrinus), the Southern Fish, near Constellation Grus, the Crane - southeast of Beta Piscis Australis/Austrini and southwest of Gamma and Delta Piscis Australis/Austrini; not visible to the naked eye

Other names
g NSV 14420
g HD 217987
g CD -36°15693
g GCTP 5584
g Gl 887
g LHS 70
g SAO 214301
g LTT 9348
g LFT 1758
g Cordoba 31353
g NSV 14420
g HIP 114046
g UGPMF 591
g Proxima Piscis Austrini; PIP sa

Sci-fi mentions
g Planet Fand orbits star in Alistair Reynold's novella "Galactic North"

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