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swap_horiz HD 128311 c Alternatives

Looking for alternatives to HD 128311 c? Compare the top Exoplanet options ranked by our AI scoring system.

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HD 128311 c

HD 128311 c

HD 128311 c is a gas-giant exoplanet orbiting the K-type star HD 128311, located roughly 53 light-years from Earth. The planet was announced in 2005 from radial-velocity observations. It is the outer member of a known two-planet system, and its orbital period is close to twice that of HD 128311 b, p...

6.5 Fair

apps Top HD 128311 c Alternatives

The top alternative to HD 128311 c in 2026 is Gliese 876 b with a score of 8.1/10, followed by Upsilon Andromedae b (8.0) and 55 Cancri b (7.8).

1
Gliese 876 b

Gliese 876 b

Gliese 876 b is a giant exoplanet orbiting Gliese 876, a nearby red-dwarf star roughly 15 light-years from Earth. Announ...

Resonance Giant Cold Radial Velocity
8.1 Great
2
Upsilon Andromedae b

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
3
55 Cancri b

55 Cancri b

55 Cancri b is a gas giant exoplanet orbiting the Sun-like star 55 Cancri (also designated Copernicus), located approxim...

Warm Giant Radial Velocity Multi Planet
7.8 Good
4
47 Ursae Majoris b

47 Ursae Majoris b

47 Ursae Majoris b is a gas giant exoplanet orbiting the Sun-like G-type star 47 Ursae Majoris at a distance of approxim...

Giant Cold Radial Velocity Sun Like
7.8 Good
5
Epsilon Eridani b

Epsilon Eridani b

Epsilon Eridani b is a gas giant exoplanet orbiting the nearby K-type star Epsilon Eridani, located approximately 10.5 l...

Giant Cold Radial Velocity K Star
7.8 Good
6
Upsilon Andromedae c

Upsilon Andromedae c

Upsilon Andromedae c is a giant exoplanet orbiting the F-type star Upsilon Andromedae. Announced in 1999 from radial-vel...

Warm Giant Radial Velocity Multi Planet
7.4 Good
7
Mu Arae b

Mu Arae b

Mu Arae b is a gas-giant exoplanet orbiting Mu Arae, a G-type star roughly 50 light-years from Earth. It was detected th...

Giant Cold Radial Velocity Multi Planet
7.4 Good
8
Pi Mensae b

Pi Mensae b

Pi Mensae b is a massive gas-giant exoplanet detected by the radial-velocity method and announced in 2001. It follows a...

Giant Cold Eccentric Radial Velocity
7.4 Good
9
55 Cancri d

55 Cancri d

55 Cancri d is a gas-giant exoplanet in the 55 Cancri system, orbiting a Sun-like star about 41 light-years from Earth....

Giant Cold Radial Velocity Multi Planet
7.2 Good
10
Upsilon Andromedae d

Upsilon Andromedae d

Upsilon Andromedae d is a gas-giant exoplanet in the multi-planet Upsilon Andromedae system, orbiting an F-type star abo...

Giant Cold Radial Velocity Multi Planet
7.2 Good
11
47 Ursae Majoris c

47 Ursae Majoris c

47 Ursae Majoris c is a confirmed giant planet orbiting the nearby Sun-like star 47 Ursae Majoris. It was announced in 2...

Giant Cold Radial Velocity Multi Planet
7.0 Good
12
HD 10180 g

HD 10180 g

HD 10180 g is a proposed exoplanet candidate orbiting the Sun-like star HD 10180, located about 127 light-years from Ear...

Giant Cold Radial Velocity Multi Planet
6.6 Fair
13
Mu Arae d

Mu Arae d

Mu Arae d is a gas-giant exoplanet in the system of Mu Arae, a Sun-like star located roughly 50 light-years away. It was...

Giant Cold Radial Velocity Multi Planet
6.5 Fair
14
HD 128311 b

HD 128311 b

HD 128311 b is a gas-giant exoplanet orbiting the K-type star HD 128311, about 53 light-years from Earth. It was detecte...

Warm Giant Radial Velocity Multi Planet
6.5 Fair
15
HD 37124 c

HD 37124 c

HD 37124 c is a giant exoplanet orbiting HD 37124, a Sun-like star approximately 108 light-years from Earth. It was anno...

Giant Cold Radial Velocity Multi Planet
6.2 Fair
16
HD 37124 d

HD 37124 d

HD 37124 d is a giant exoplanet associated with HD 37124, a Sun-like star about 108 light-years from Earth. It was annou...

Giant Cold Radial Velocity Multi Planet
6.2 Fair
17
HD 192310 c

HD 192310 c

HD 192310 c is an exoplanet orbiting HD 192310, a nearby K-type star about 29 light-years from Earth. It was announced i...

Cold Radial Velocity Super Earth Multi Planet
6.2 Fair
18
HIP 14810 c

HIP 14810 c

HIP 14810 c is a giant exoplanet orbiting the Sun-like star HIP 14810, located about 170 light-years from Earth. It was...

Giant Cold Radial Velocity Multi Planet
6.2 Fair
19
HD 219134 g

HD 219134 g

HD 219134 g is an exoplanet orbiting the nearby star HD 219134, which is notable for hosting a complex system of at leas...

Giant Cold Radial Velocity Nearby
6.2 Fair
20
HD 95338 b

HD 95338 b

HD 95338 b is a giant exoplanet detected through radial-velocity observations of the star HD 95338. The host is a metal-...

Giant Cold Radial Velocity Long Period
5.8 Mediocre

summarize Quick Comparison Summary

Alternative Score vs HD 128311 c Action
Gliese 876 b
Gliese 876 b
Exoplanet Resonance Giant Cold
8.1 Great +1.6 Compare
Upsilon Andromedae b
Upsilon Andromedae b
Exoplanet Giant Radial Velocity Hot Jupiter
8.0 Great +1.5 Compare
55 Cancri b
55 Cancri b
Exoplanet Warm Giant Radial Velocity
7.8 Good +1.3 Compare
47 Ursae Majoris b
47 Ursae Majoris b
Exoplanet Giant Cold Radial Velocity
7.8 Good +1.3 Compare
Epsilon Eridani b
Epsilon Eridani b
Exoplanet Giant Cold Radial Velocity
7.8 Good +1.3 Compare
Upsilon Andromedae c
Upsilon Andromedae c
Exoplanet Warm Giant Radial Velocity
7.4 Good +0.9 Compare
Mu Arae b
Mu Arae b
Exoplanet Giant Cold Radial Velocity
7.4 Good +0.9 Compare
Pi Mensae b
Pi Mensae b
Exoplanet Giant Cold Eccentric
7.4 Good +0.9 Compare
55 Cancri d
55 Cancri d
Exoplanet Giant Cold Radial Velocity
7.2 Good +0.7 Compare
Upsilon Andromedae d
Upsilon Andromedae d
Exoplanet Giant Cold Radial Velocity
7.2 Good +0.7 Compare

See all Exoplanet ranked by score

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help Frequently Asked Questions

What are the best alternatives to HD 128311 c?
The top alternatives to HD 128311 c in 2026 include Gliese 876 b, Upsilon Andromedae b, 55 Cancri b, 47 Ursae Majoris b, Epsilon Eridani b. Each offers unique features and is objectively scored on Lunoo to help you compare.
How does HD 128311 c compare to its competitors?
Our AI-powered comparison system analyzes features, pricing, user reviews, and expert opinions to provide objective scores. HD 128311 c scores 6.5/10. Click any alternative above to see a detailed side-by-side comparison.
Is HD 128311 c worth it in 2026?
HD 128311 c scores 6.5/10 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 HD 128311 c?
Several alternatives to HD 128311 c 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 HD 128311 c?
Common reasons users look for HD 128311 c 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 HD 128311 c are there?
Lunoo currently lists 20 scored alternatives to HD 128311 c in the Exoplanet category, ranked by our AI-powered evaluation system.
Which HD 128311 c alternative has the highest rating?
Gliese 876 b currently holds the highest rating among HD 128311 c alternatives with a score of 8.1/10.
Can I use Gliese 876 b instead of HD 128311 c?
Gliese 876 b is one of the top-rated alternatives to HD 128311 c. 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 HD 128311 c?
Pricing varies among HD 128311 c 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 HD 128311 c 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.
HD 128311 c vs Gliese 876 b: which is better?
HD 128311 c scores 6.5/10 while Gliese 876 b scores 8.1/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.
HD 128311 c vs Upsilon Andromedae b: which is better?
HD 128311 c scores 6.5/10 while Upsilon Andromedae b scores 8.0/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.
HD 128311 c vs 55 Cancri b: which is better?
HD 128311 c scores 6.5/10 while 55 Cancri b scores 7.8/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

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