Gliese 581b

GPTKB entity

Statements (57)
Predicate Object
gptkbp:instance_of gptkb:planet
gptkbp:bfsLayer 5
gptkbp:bfsParent gptkb:Gliese_581
gptkbp:area 1.5 times the radius of Earth
gptkbp:atmosphere unknown atmospheric composition
potentially habitable atmosphere
may have a thick atmosphere
gptkbp:average_temperature approximately 100° C
gptkbp:climate extreme climate conditions
gptkbp:community_engagement popular among astronomy enthusiasts
gptkbp:contains M3 V
gptkbp:controls Gliese 581 system
gptkbp:country unknown if it has moons
formed in the habitable zone
categorized as a super-Earth
contains at least four planets
similar to other super-Earths
gptkbp:discovered_by gptkb:University_of_Geneva
gptkb:Michel_Mayor
radial velocity method
gptkbp:distance 20.3 light years
gptkbp:eccentricity 0.0
gptkbp:elevation 0.041 AU from its star
gptkbp:future_plans considered to have potential for life
gptkbp:growth_habit under investigation
considered for habitability studies
gptkbp:has_luminosity exists in a multi-planet system
gptkbp:has_spectral_type gptkb:red_dwarf_star
gptkbp:hosts gptkb:Gliese_581
https://www.w3.org/2000/01/rdf-schema#label Gliese 581b
gptkbp:is_explored_in not yet explored by spacecraft
potential target for future missions
gptkbp:location gptkb:Libra_constellation
gptkbp:mass 1.5 times the mass of Earth
1.5 to 2.0 Earth masses
0.31 solar masses
0.34 solar radii
16.0 Earth masses
gptkbp:orbital_inclination about 50 degrees
gptkbp:orbital_period not in resonance
unknown rotation period
5.36 days
gptkbp:origin named after the Gliese catalog
gptkbp:research subject of many studies
difficult to observe directly
observed by HARPS spectrograph
studied using Doppler spectroscopy
gptkbp:research_interest high interest in astrobiology
gptkbp:season not applicable
gptkbp:semi_major_axis 0.041 AU
gptkbp:significance important for understanding exoplanets
gptkbp:surface higher than Earth
high surface temperatures
possible presence of liquid water
gptkbp:type super-Earth
gptkbp:year_created gptkb:2005
April 2005