|
gptkbp:instance_of
|
gptkb:exoplanet
gptkb:star
|
|
gptkbp:age
|
approximately 4.5 billion years
|
|
gptkbp:apparent_magnitude
|
5.49
|
|
gptkbp:atmosphere
|
not well studied
|
|
gptkbp:average_temperature
|
approximately 1200 K
5800 K
|
|
gptkbp:constellation
|
gptkb:Pegasus
|
|
gptkbp:contains
|
gptkb:51_Pegasi_b
|
|
gptkbp:contains_star
|
gptkb:main-sequence_star
gptkb:Milky_Way
|
|
gptkbp:country
|
gptkb:51_Pegasi_system
gptkb:Giant
at least 1
|
|
gptkbp:declination
|
+20° 46' 00''
|
|
gptkbp:discovered_by
|
gptkb:1995
gptkb:Michel_Mayor
|
|
gptkbp:discovery
|
gptkb:La_Silla_Observatory
radial velocity
first detection of an exoplanet around a solar-type star
|
|
gptkbp:discovery_year
|
gptkb:1995
|
|
gptkbp:distance_from_earth
|
approximately 50 light years
|
|
gptkbp:eccentricity
|
0.0
|
|
gptkbp:events
|
numerous follow-up studies conducted
|
|
gptkbp:first_exoplanet
|
first exoplanet discovered around a sun-like star
|
|
gptkbp:future_prospects
|
ongoing research planned
|
|
gptkbp:has_color
|
0.6
0.63
|
|
gptkbp:has_luminosity
|
approximately 1.2 times the Sun's luminosity
|
|
gptkbp:has_mechanic
|
-0.020 arcseconds/year
|
|
gptkbp:has_method
|
radial velocity method
|
|
gptkbp:has_radius
|
1.2 solar radii
1.2 times the radius of Jupiter
|
|
gptkbp:has_spectral_type
|
G2.5 V
|
|
gptkbp:hosts
|
51 Pegasi A
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
51 Pegasi
|
|
gptkbp:impact
|
significant impact on the field of astronomy
|
|
gptkbp:is_a
|
gptkb:main-sequence_star
|
|
gptkbp:is_approximately
|
50 light years away from Earth
|
|
gptkbp:is_known_for
|
hosting the first exoplanet discovered around a sun-like star.
|
|
gptkbp:is_located_in
|
gptkb:Milky_Way
|
|
gptkbp:is_part_of
|
gptkb:Pegasus_constellation
the Hipparcos catalog
|
|
gptkbp:is_similar_to
|
gptkb:the_Sun
|
|
gptkbp:is_visible_from
|
with binoculars
|
|
gptkbp:lighting
|
5.49 magnitude
|
|
gptkbp:mass
|
1.1 solar masses
0.47 times the mass of Jupiter
|
|
gptkbp:metallicity
|
0.0 dex
|
|
gptkbp:orbital_inclination
|
90 degrees
|
|
gptkbp:orbital_period
|
not applicable
4.23 days
|
|
gptkbp:origin
|
named after the constellation Pegasus
|
|
gptkbp:parallax
|
0.065 arcseconds
|
|
gptkbp:publications
|
many scientific publications related to it
|
|
gptkbp:related_exoplanets
|
related to other hot Jupiters
|
|
gptkbp:research
|
observed by various telescopes
|
|
gptkbp:research_interest
|
high interest in exoplanet studies
|
|
gptkbp:right_ascension
|
21h 31m 38.3s
|
|
gptkbp:rotation_period
|
not specified
not determined
|
|
gptkbp:semi_major_axis
|
0.05 AU
|
|
gptkbp:surface
|
approximately 10 m/s²
|
|
gptkbp:type
|
gptkb:main-sequence_star
gptkb:hot_Jupiter
|
|
gptkbp:zone
|
not within habitable zone
|
|
gptkbp:bfsParent
|
gptkb:51_Pegasi_b
|
|
gptkbp:bfsLayer
|
8
|