swap_horiz 51 Pegasi b Alternatives
Looking for alternatives to 51 Pegasi b? Compare the top Exoplanet options ranked by our AI scoring system.
51 Pegasi b
51 Pegasi b is a gas giant exoplanet orbiting the Sun-like star 51 Pegasi. Its discovery in 1995 marked the first confirmation of an exoplanet around such a star. This “hot Jupiter” planet’s existence was determined through radial velocity measurements, offering scientists a crucial early example fo...
apps Top 51 Pegasi b Alternatives
The top alternative to 51 Pegasi b in 2026 is HD 209458 b with a score of 9.6/10, followed by KELT-9b (9.5) and HD 189733 b (9.4).
HD 209458 b
HD 209458 b is a giant exoplanet orbiting a Sun-like star approximately 153 light-years away. It gained significant atte...
KELT-9b
KELT-9b is a giant exoplanet orbiting the star HD 189733A. It’s notable as the hottest known planet, boasting a dayside...
HD 189733 b
HD 189733 b is a gas giant exoplanet orbiting a Sun-like star approximately 63 light-years away. It’s notable for posses...
WASP-76b
WASP-76b is an exoplanet orbiting a distant star, classified as a “hot Jupiter.” Its notable characteristic is its extre...
WASP-96b
WASP-96b is a giant exoplanet orbiting a star approximately 843 light-years away. Its atmosphere was studied extensively...
WASP-39b
WASP-39b is a giant exoplanet orbiting a Sun-like star approximately 700 light-years away. The James Webb Space Telescop...
WASP-12b
WASP-12b is a massive exoplanet orbiting the star WASP-12. This “hot Jupiter” exhibits an exceptionally short orbital pe...
WASP-121b
An ultra-hot Jupiter with a detected stratosphere and dayside temperatures exceeding 2,400 K, orbiting its host star in...
TrES-2b
The darkest known exoplanet, reflecting less than 1% of incident starlight, discovered by the TrES survey in 2006 and su...
WASP-189b
A very hot Jupiter orbiting a bright A-type star, studied intensively by ESA's CHEOPS mission and among the hottest know...
WASP-17b
The first exoplanet confirmed to orbit in a retrograde direction relative to its host star's rotation, announced by the...
HAT-P-7b
A hot Jupiter in the Cygnus field whose reflected starlight and orbital phase curve were detected by NASA's Kepler teles...
Tau Boötis b
A hot Jupiter discovered in 1996 around Tau Boötis, notable as one of the first exoplanets to have its atmospheric compo...
Gliese 876 b
Gliese 876 b is a Jupiter-mass planet orbiting the nearby M-dwarf Gliese 876 ~15 light-years away, discovered in 1998, a...
Upsilon Andromedae b
A hot Jupiter discovered in 1996 around Upsilon Andromedae, later recognized as part of the first confirmed multi-planet...
HAT-P-32b
A highly inflated hot Jupiter with one of the largest known radii for its mass class, making it a prime target for trans...
47 Ursae Majoris b
A Jupiter analog discovered in 1996 orbiting 47 Ursae Majoris at 2.1 AU in a nearly circular orbit, one of the first lon...
HD 217107 b
HD 217107 b is a hot Jupiter with an orbital period of ~7.1 days discovered in 1998 by Fischer et al., among the early c...
HD 130322 b
HD 130322 b is a hot Jupiter with an orbital period of ~10.7 days around HD 130322, discovered in 1999 by Udry et al. us...
XO-1b
A hot Jupiter discovered in 2006 by the XO wide-field photometric survey and among the earliest transiting exoplanets to...
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