Proxima Centauri b Alternatives 2026 - Top Competitors Ranked

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Proxima Centauri b

Proxima Centauri b is an exoplanet orbiting Proxima Centauri, the closest star to our Sun. This super-Earth resides within its star’s habitable zone, raising possibilities for liquid water on its surface. Its proximity makes it a key target for astronomical study and future investigation by scientis...

9.9 Brilliant

apps Top Proxima Centauri b Alternatives

The top alternative to Proxima Centauri b in 2026 is Kepler-1649c with a score of 9.3/10, followed by LHS 1140 b (8.7) and Kepler-438b (8.5).

Kepler-1649c

Kepler-1649c is an exoplanet roughly Earth-sized orbiting a red dwarf star named Kepler-1649. Its location within its st...

Kepler Super Earth Earth Sized Habitable Zone

9.3 Excellent

LHS 1140 b

LHS 1140 b is an exoplanet approximately seven times Earth’s mass, orbiting the M-dwarf star LHS 1140. Its location with...

Transiting Super Earth Habitable Zone Potentially Habitable

8.7 Great

Kepler-438b

Kepler-438b is a near-Earth-sized exoplanet confirmed by NASA in 2015, orbiting within the habitable zone of a red dwarf...

Kepler Super Earth Habitable Zone Potentially Habitable

8.5 Great

Gliese 581 c

Gliese 581 c is a super-Earth exoplanet discovered in 2007 orbiting the red dwarf star Gliese 581, located about 20 ligh...

Rocky Radial Velocity Super Earth M Dwarf

8.4 Great

Kepler-296f

Kepler-296f is a transiting exoplanet categorized as a super-Earth, located approximately 1,000 light-years away. Confir...

Kepler Transiting Super Earth Habitable Zone

8.3 Great

Teegarden's Star b

Teegarden's Star b is a potentially Earth-like exoplanet situated in the habitable zone of the ultra-cool red dwarf star...

Radial Velocity Nearby Habitable Zone M Dwarf

8.3 Great

Kepler-296e

Super-Earth confirmed in 2014 orbiting within the habitable zone of Kepler-296, a red dwarf binary system ~1,200 light-y...

Kepler Transiting Super Earth Habitable Zone

8.2 Great

GJ 667Cc

GJ 667Cc is a super-Earth exoplanet confirmed in 2012, orbiting within the habitable zone of a red dwarf star in the tri...

Radial Velocity Super Earth Habitable Zone M Dwarf

8.2 Great

Ross 128 b

Ross 128 b is a near-Earth-mass exoplanet orbiting the red dwarf star Ross 128, located approximately 11 light-years fro...

Radial Velocity Nearby Super Earth Habitable Zone

8.2 Great

Gliese 876 d

Gliese 876 d is a super-Earth exoplanet orbiting the red dwarf star Gliese 876, located approximately 15 light-years fro...

Hot Rocky Radial Velocity Super Earth

7.8 Good

Gliese 581 e

Gliese 581 e is the least massive planet in the Gliese 581 system at ~1.9 Earth masses, announced in 2009; it orbits ver...

Hot Radial Velocity Super Earth M Dwarf

7.6 Good

TOI-715 b

TOI-715 b is a super-Earth exoplanet discovered by NASA's Transiting Exoplanet Survey Satellite (TESS) through the trans...

Transiting Super Earth Habitable Zone M Dwarf

7.5 Good

Wolf 1061 c

Wolf 1061 c is a confirmed exoplanet orbiting the red dwarf star Wolf 1061, located approximately 14 light-years away fr...

Radial Velocity Super Earth Habitable Zone Potentially Habitable

7.5 Good

HD 40307 g

HD 40307 g was reported in 2012 as a super-Earth candidate detected through radial-velocity measurements of the nearby K...

Radial Velocity Super Earth Habitable Zone Potentially Habitable

7.4 Good

GJ 273 b

GJ 273 b, also called Luyten b, is a super-Earth detected through radial-velocity measurements and announced in 2017. It...

Radial Velocity Nearby Super Earth Habitable Zone

7.4 Good

GJ 357 d

GJ 357 d is a confirmed, non-transiting super-Earth orbiting the M-dwarf GJ 357. Its minimum mass is about 6.1 Earth mas...

Radial Velocity Super Earth Habitable Zone Potentially Habitable

7.2 Good

K2-3 d

K2-3 d is a transiting exoplanet orbiting K2-3, a nearby cool M-dwarf star. It was identified from observations by NASA’...

K2 Transiting Super Earth Habitable Zone

7.2 Good

Teegarden's Star c

Teegarden's Star c is a confirmed planet orbiting the nearby ultracool red dwarf known as Teegarden's Star. It was annou...

Cool Radial Velocity Habitable Zone M Dwarf

7.0 Good

Wolf 1061 b

Wolf 1061 b is the innermost reported planet in the multi-planet system around Wolf 1061, a nearby red dwarf about 14 li...

Hot Radial Velocity Super Earth Multi Planet

6.6 Fair

GJ 3293 d

GJ 3293 d is a confirmed exoplanet orbiting the red-dwarf star GJ 3293. It is one of several planets detected in that sy...

Radial Velocity Super Earth Multi Planet Habitable Zone

6.0 Fair

summarize Quick Comparison Summary

Alternative	Score	vs Proxima Centaur...	Action
Kepler-1649c Exoplanet Kepler Super Earth Earth Sized	9.3 Excellent	-0.6	Compare
LHS 1140 b Exoplanet Transiting Super Earth Habitable Zone	8.7 Great	-1.2	Compare
Kepler-438b Exoplanet Kepler Super Earth Habitable Zone	8.5 Great	-1.4	Compare
Gliese 581 c Exoplanet Rocky Radial Velocity Super Earth	8.4 Great	-1.5	Compare
Kepler-296f Exoplanet Kepler Transiting Super Earth	8.3 Great	-1.6	Compare
Teegarden's Star b Exoplanet Radial Velocity Nearby Habitable Zone	8.3 Great	-1.6	Compare
Kepler-296e Exoplanet Kepler Transiting Super Earth	8.2 Great	-1.7	Compare
GJ 667Cc Exoplanet Radial Velocity Super Earth Habitable Zone	8.2 Great	-1.7	Compare
Ross 128 b Exoplanet Radial Velocity Nearby Super Earth	8.2 Great	-1.7	Compare
Gliese 876 d Exoplanet Hot Rocky Radial Velocity	7.8 Good	-2.1	Compare

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help Frequently Asked Questions

What are the best alternatives to Proxima Centauri b?

The top alternatives to Proxima Centauri b in 2026 include Kepler-1649c, LHS 1140 b, Kepler-438b, Gliese 581 c, Kepler-296f. Each offers unique features and is objectively scored on Lunoo to help you compare.

How does Proxima Centauri b compare to its competitors?

Our AI-powered comparison system analyzes features, pricing, user reviews, and expert opinions to provide objective scores. Proxima Centauri b scores 9.9/10. Click any alternative above to see a detailed side-by-side comparison.

Is Proxima Centauri b worth it in 2026?

Proxima Centauri b scores 9.9/10 on Lunoo, making it a highly-rated option in the Exoplanet category. However, alternatives like Kepler-1649c may better suit specific needs.

What is the best free alternative to Proxima Centauri b?

Several alternatives to Proxima Centauri b 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 Proxima Centauri b?

Common reasons users look for Proxima Centauri b 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 Proxima Centauri b are there?

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

Which Proxima Centauri b alternative has the highest rating?

Kepler-1649c currently holds the highest rating among Proxima Centauri b alternatives with a score of 9.3/10.

Can I use Kepler-1649c instead of Proxima Centauri b?

Kepler-1649c is one of the top-rated alternatives to Proxima Centauri b. 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 Proxima Centauri b?

Pricing varies among Proxima Centauri b 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 Proxima Centauri b 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.

Proxima Centauri b vs Kepler-1649c: which is better?

Proxima Centauri b scores 9.9/10 while Kepler-1649c scores 9.3/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

Proxima Centauri b vs LHS 1140 b: which is better?

Proxima Centauri b scores 9.9/10 while LHS 1140 b scores 8.7/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

Proxima Centauri b vs Kepler-438b: which is better?

Proxima Centauri b scores 9.9/10 while Kepler-438b scores 8.5/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

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