HAT-P-2b Alternatives 2026 - Top Competitors Ranked

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HAT-P-2b

HAT-P-2b is a confirmed gas-giant exoplanet that crosses the disk of its host star, HAT-P-2, an F-type star. It has a mass of about nine Jupiters, completes an orbit in roughly 5.6 days, and follows an unusually eccentric path with an eccentricity near 0.52. The planet was identified by the HATNet t...

7.0 Good

apps Top HAT-P-2b Alternatives

The top alternative to HAT-P-2b 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...

Giant Hot Jupiter Transiting Atmosphere Detected

9.6 Brilliant

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

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

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

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

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

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

WASP-121b

WASP-121b is an exoplanet classified as a giant, resembling a hot Jupiter. Its notable characteristic is its extremely s...

Giant Atmosphere Hot Jupiter Transiting

8.8 Great

TrES-2b

TrES-2b is a giant exoplanet orbiting the star GSC 03549-02807. It’s notable as the darkest known exoplanet, reflecting...

Giant Hot Jupiter Transiting Kepler Target

8.8 Great

WASP-189b

WASP-189b is a giant exoplanet orbiting a young A-type star. It’s notable for being one of the hottest known exoplanets,...

Giant Hot Jupiter Transiting Ultrashort Period

8.7 Great

WASP-17b

WASP-17b is a giant exoplanet announced in 2009 by the Wide Angle Search for Planets consortium. It holds the distinctio...

Giant Hot Jupiter Transiting Retrograde Orbit

8.6 Great

WASP-43b

WASP-43b is a hot Jupiter exoplanet discovered in 2011 by the Wide Angle Search for Planets survey. It orbits an active...

Hot Jupiter Transiting M Dwarf Tidal Lock

8.6 Great

HAT-P-7b

HAT-P-7b is a hot Jupiter exoplanet located in the Cygnus constellation, notable for its retrograde orbit around its hos...

Retrograde Giant Hot Jupiter Transiting

8.4 Great

WASP-18b

WASP-18b is an ultrashort-period hot Jupiter exoplanet discovered by the Wide Angle Search for Planets survey in 2009. I...

Hot Jupiter Transiting Ultrashort Period F Star

8.4 Great

Tau Boötis b

Tau Boötis b is an exoplanet categorized as a hot Jupiter, orbiting the F-type star Tau Boötis. Discovered in 1996 using...

Giant Radial Velocity Hot Jupiter F Star

8.3 Great

Upsilon Andromedae b

Upsilon Andromedae b is a hot Jupiter exoplanet discovered in 1996 orbiting the F-type main-sequence star Upsilon Androm...

Giant Radial Velocity Hot Jupiter Multi Planet

8.0 Great

HAT-P-32b

HAT-P-32b is an inflated hot Jupiter exoplanet orbiting the G-type or F-type star HAT-P-32. Discovered in 2011, it is si...

Giant Inflated Hot Jupiter Transiting

7.8 Good

WASP-19b

WASP-19b is a hot Jupiter exoplanet with one of the shortest known orbital periods of any exoplanet, completing an orbit...

Giant Hot Jupiter Transiting G Star

7.8 Good

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

Kepler-7b

Kepler-7b is a transiting hot Jupiter discovered during NASA's Kepler mission. It has a large radius relative to its mas...

Reflective Giant Kepler Hot Jupiter

7.4 Good

summarize Quick Comparison Summary

Alternative	Score	vs HAT-P-2b	Action
HD 209458 b Exoplanet Giant Hot Jupiter Transiting	9.6 Brilliant	+2.6	Compare
KELT-9b Exoplanet Giant Hot Jupiter Transiting	9.5 Brilliant	+2.5	Compare
HD 189733 b Exoplanet Blue Planet Giant Atmosphere	9.4 Excellent	+2.4	Compare
WASP-76b Exoplanet Giant Atmosphere Hot Jupiter	9.3 Excellent	+2.3	Compare
WASP-96b Exoplanet Giant Atmosphere Hot Jupiter	9.2 Excellent	+2.2	Compare
WASP-39b Exoplanet Giant Atmosphere Hot Jupiter	9.1 Excellent	+2.1	Compare
WASP-12b Exoplanet Giant Hot Jupiter Transiting	8.9 Great	+1.9	Compare
WASP-121b Exoplanet Giant Atmosphere Hot Jupiter	8.8 Great	+1.8	Compare
TrES-2b Exoplanet Giant Hot Jupiter Transiting	8.8 Great	+1.8	Compare
WASP-189b Exoplanet Giant Hot Jupiter Transiting	8.7 Great	+1.7	Compare

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help Frequently Asked Questions

What are the best alternatives to HAT-P-2b?

The top alternatives to HAT-P-2b 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 HAT-P-2b compare to its competitors?

Our AI-powered comparison system analyzes features, pricing, user reviews, and expert opinions to provide objective scores. HAT-P-2b scores 7.0/10. Click any alternative above to see a detailed side-by-side comparison.

Is HAT-P-2b worth it in 2026?

HAT-P-2b scores 7.0/10 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 HAT-P-2b?

Several alternatives to HAT-P-2b 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 HAT-P-2b?

Common reasons users look for HAT-P-2b 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 HAT-P-2b are there?

Lunoo currently lists 20 scored alternatives to HAT-P-2b in the Exoplanet category, ranked by our AI-powered evaluation system.

Which HAT-P-2b alternative has the highest rating?

HD 209458 b currently holds the highest rating among HAT-P-2b alternatives with a score of 9.6/10.

Can I use HD 209458 b instead of HAT-P-2b?

HD 209458 b is one of the top-rated alternatives to HAT-P-2b. 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 HAT-P-2b?

Pricing varies among HAT-P-2b 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 HAT-P-2b 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.

HAT-P-2b vs HD 209458 b: which is better?

HAT-P-2b scores 7.0/10 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.

HAT-P-2b vs KELT-9b: which is better?

HAT-P-2b scores 7.0/10 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.

HAT-P-2b vs HD 189733 b: which is better?

HAT-P-2b scores 7.0/10 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.

swap_horiz HAT-P-2b Alternatives

HAT-P-2b

apps Top HAT-P-2b Alternatives

HD 209458 b

KELT-9b

HD 189733 b

WASP-76b

WASP-96b

WASP-39b

WASP-12b

WASP-121b

TrES-2b

WASP-189b

WASP-17b

WASP-43b

HAT-P-7b

WASP-18b

Tau Boötis b

Upsilon Andromedae b

HAT-P-32b

WASP-19b

KELT-11b

Kepler-7b

summarize Quick Comparison Summary

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