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swap_horiz XO-1b Alternatives

Looking for alternatives to XO-1b? Compare the top Exoplanet options ranked by our AI scoring system.

You're looking at alternatives to:
XO-1b

XO-1b

A hot Jupiter discovered in 2006 by the XO wide-field photometric survey and among the earliest transiting exoplanets to have its atmospheric composition probed by transmission spectroscopy.

5.5 Mediocre

apps Top XO-1b Alternatives

The top alternative to XO-1b 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).

1
HD 209458 b

HD 209458 b

HD 209458 b is a giant exoplanet orbiting a Sun-like star approximately 153 light-years away. It gained significant atte...

Giant Hot Jupiter Transiting Atmosphere Detected
9.6 Brilliant
2
KELT-9b

KELT-9b

KELT-9b is a giant exoplanet orbiting the star HD 189733A. It’s notable as the hottest known planet, boasting a dayside...

Giant Hot Jupiter Transiting Ultrahot
9.5 Brilliant
3
HD 189733 b

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...

Blue Planet Giant Atmosphere Hot Jupiter
9.4 Excellent
4
WASP-76b

WASP-76b

WASP-76b is an exoplanet orbiting a distant star, classified as a “hot Jupiter.” Its notable characteristic is its extre...

Giant Atmosphere Hot Jupiter Transiting
9.3 Excellent
5
WASP-96b

WASP-96b

WASP-96b is a giant exoplanet orbiting a star approximately 843 light-years away. Its atmosphere was studied extensively...

Giant Atmosphere Hot Jupiter Transiting
9.2 Excellent
6
51 Pegasi b

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 confir...

Giant Pegasus Radial Velocity Hot Jupiter
9.1 Excellent
7
WASP-39b

WASP-39b

WASP-39b is a giant exoplanet orbiting a Sun-like star approximately 700 light-years away. The James Webb Space Telescop...

Giant Atmosphere Hot Jupiter Transiting
9.1 Excellent
8
WASP-12b

WASP-12b

WASP-12b is a massive exoplanet orbiting the star WASP-12. This “hot Jupiter” exhibits an exceptionally short orbital pe...

Giant Hot Jupiter Transiting Tidally Distorted
8.9 Great
9
WASP-121b

WASP-121b

An ultra-hot Jupiter with a detected stratosphere and dayside temperatures exceeding 2,400 K, orbiting its host star in...

Giant Atmosphere Hot Jupiter Transiting
8.8 Great
10
TrES-2b

TrES-2b

The darkest known exoplanet, reflecting less than 1% of incident starlight, discovered by the TrES survey in 2006 and su...

Giant Hot Jupiter Transiting Kepler Target
8.8 Great
11
WASP-189b

WASP-189b

A very hot Jupiter orbiting a bright A-type star, studied intensively by ESA's CHEOPS mission and among the hottest know...

Giant Hot Jupiter Transiting Ultrashort Period
8.7 Great
12
WASP-17b

WASP-17b

The first exoplanet confirmed to orbit in a retrograde direction relative to its host star's rotation, announced by the...

Giant Hot Jupiter Transiting Retrograde Orbit
8.6 Great
13
HAT-P-7b

HAT-P-7b

A hot Jupiter in the Cygnus field whose reflected starlight and orbital phase curve were detected by NASA's Kepler teles...

Retrograde Giant Hot Jupiter Transiting
8.4 Great
14
Tau Boötis b

Tau Boötis b

A hot Jupiter discovered in 1996 around Tau Boötis, notable as one of the first exoplanets to have its atmospheric compo...

Giant Radial Velocity Hot Jupiter F Star
8.3 Great
15
Upsilon Andromedae b

Upsilon Andromedae b

A hot Jupiter discovered in 1996 around Upsilon Andromedae, later recognized as part of the first confirmed multi-planet...

Giant Radial Velocity Hot Jupiter Multi Planet
8.0 Great
16
HAT-P-32b

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...

Giant Inflated Hot Jupiter Transiting
7.8 Good
17
HD 80606 b

HD 80606 b

HD 80606 b is a gas giant with one of the most eccentric planetary orbits known (e ≈ 0.93), discovered in 2001 within a...

Giant Radial Velocity Transiting G Star
7.8 Good
18
WASP-19b

WASP-19b

Hot Jupiter with one of the shortest known orbital periods (~0.789 days), discovered by the WASP survey in 2010 and stud...

Giant Hot Jupiter Transiting G Star
7.8 Good
19
KELT-11b

KELT-11b

A highly inflated hot Saturn orbiting a subgiant star with one of the lowest densities among known exoplanets, making it...

Giant Inflated Hot Jupiter Transiting
7.6 Good
20
HD 149026 b

HD 149026 b

A Saturn-sized transiting hot Jupiter discovered in 2005 around HD 149026, notable for an abnormally massive dense core...

Giant Radial Velocity Transiting Hot Saturn
7.6 Good

summarize Quick Comparison Summary

Alternative Score vs XO-1b Action
HD 209458 b
HD 209458 b
Exoplanet Giant Hot Jupiter Transiting
9.6 Brilliant +4.1 Compare
KELT-9b
KELT-9b
Exoplanet Giant Hot Jupiter Transiting
9.5 Brilliant +4.0 Compare
HD 189733 b
HD 189733 b
Exoplanet Blue Planet Giant Atmosphere
9.4 Excellent +3.9 Compare
WASP-76b
WASP-76b
Exoplanet Giant Atmosphere Hot Jupiter
9.3 Excellent +3.8 Compare
WASP-96b
WASP-96b
Exoplanet Giant Atmosphere Hot Jupiter
9.2 Excellent +3.7 Compare
51 Pegasi b
51 Pegasi b
Exoplanet Giant Pegasus Radial Velocity
9.1 Excellent +3.6 Compare
WASP-39b
WASP-39b
Exoplanet Giant Atmosphere Hot Jupiter
9.1 Excellent +3.6 Compare
WASP-12b
WASP-12b
Exoplanet Giant Hot Jupiter Transiting
8.9 Great +3.4 Compare
WASP-121b
WASP-121b
Exoplanet Giant Atmosphere Hot Jupiter
8.8 Great +3.3 Compare
TrES-2b
TrES-2b
Exoplanet Giant Hot Jupiter Transiting
8.8 Great +3.3 Compare

See all Exoplanet ranked by score

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help Frequently Asked Questions

What are the best alternatives to XO-1b?
The top alternatives to XO-1b in 2026 include HD 209458 b, KELT-9b, HD 189733 b, WASP-76b, WASP-96b. Each offers unique features and is objectively scored on Lunoo to help you compare.
How does XO-1b compare to its competitors?
Our AI-powered comparison system analyzes features, pricing, user reviews, and expert opinions to provide objective scores. XO-1b scores 5.5/10. Click any alternative above to see a detailed side-by-side comparison.
Is XO-1b worth it in 2026?
XO-1b scores 5.5/10 in the Exoplanet category. We recommend comparing it with the 20 alternatives listed above to find the best fit for your needs.
What is the best free alternative to XO-1b?
Several alternatives to XO-1b offer free plans or free tiers. Check the alternatives listed above and visit their websites to compare pricing and free options.
Why should I switch from XO-1b?
Common reasons users look for XO-1b alternatives include pricing, specific feature gaps, better integration needs, or simply exploring newer options. Our objective scoring helps you compare without bias.
How many alternatives to XO-1b are there?
Lunoo currently lists 20 scored alternatives to XO-1b in the Exoplanet category, ranked by our AI-powered evaluation system.
Which XO-1b alternative has the highest rating?
HD 209458 b currently holds the highest rating among XO-1b alternatives with a score of 9.6/10.
Can I use HD 209458 b instead of XO-1b?
HD 209458 b is one of the top-rated alternatives to XO-1b. While they serve similar purposes in the Exoplanet space, each has distinct strengths. Use our comparison tool above for a detailed side-by-side analysis.
What is the cheapest alternative to XO-1b?
Pricing varies among XO-1b alternatives. We recommend checking each alternative's website for current pricing. Many options in the Exoplanet category offer free tiers or competitive pricing.
How are XO-1b alternatives ranked on Lunoo?
Lunoo uses an AI-powered scoring system that analyzes category fit, feature coverage, pricing signals, public reception, recency, and value to provide 0 to 10 scores. Rankings are updated continuously.
XO-1b vs HD 209458 b: which is better?
XO-1b scores 5.5/10 while HD 209458 b scores 9.6/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.
XO-1b vs KELT-9b: which is better?
XO-1b scores 5.5/10 while KELT-9b scores 9.5/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.
XO-1b vs HD 189733 b: which is better?
XO-1b scores 5.5/10 while HD 189733 b scores 9.4/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

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