HD 40307 d Alternatives 2026 - Top Competitors Ranked

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HD 40307 d

Exoplanet Warm Radial Velocity Super Earth Multi Planet K Star

HD 40307 d is one of the planets first identified around the nearby K-type star HD 40307. It was reported in 2008 from radial-velocity measurements and has a minimum mass of about 9.5 Earth masses, placing it in the super-Earth range. In the original three-planet solution, it was the outermost plane...

6.5 Fair

apps Top HD 40307 d Alternatives

The top alternative to HD 40307 d in 2026 is 55 Cancri b with a score of 7.8/10, followed by Upsilon Andromedae c (7.4) and HD 40307 g (7.4).

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

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

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

HD 69830 b

HD 69830 b is the innermost known planet around HD 69830, a nearby K-type star. It has a minimum mass of about 10 Earth...

Warm Radial Velocity Neptune Class Multi Planet

7.2 Good

61 Virginis b

61 Virginis b is the innermost known planet in the 61 Virginis system, orbiting a nearby Sun-like star about 28 light-ye...

Hot Radial Velocity Super Earth Multi Planet

7.2 Good

55 Cancri c

55 Cancri c is a confirmed Neptune-class exoplanet orbiting the G-type star 55 Cancri, also known as Copernicus. Radial-...

Warm Radial Velocity Neptune Class Multi Planet

7.0 Good

HD 69830 c

HD 69830 c is a confirmed Neptune-class planet detected by measuring the radial-velocity motion of the K-type star HD 69...

Warm Radial Velocity Neptune Class Multi Planet

7.0 Good

HD 10180 c

HD 10180 c is a confirmed planet detected through the radial-velocity motion of the Sun-like star HD 10180, located abou...

Hot Radial Velocity Super Earth Multi Planet

7.0 Good

HD 40307 b

HD 40307 b is a radial-velocity exoplanet orbiting the K-type star HD 40307, about 42 light-years away. With a minimum m...

Hot Radial Velocity Super Earth Multi Planet

6.8 Fair

61 Virginis c

61 Virginis c is a radial-velocity planet orbiting the nearby Sun-like star 61 Virginis, about 28 light-years from Earth...

Warm Radial Velocity Super Earth Multi Planet

6.8 Fair

HD 10180 d

HD 10180 d is a radial-velocity exoplanet orbiting the Sun-like star HD 10180 at a distance of about 127 light-years. It...

Warm Radial Velocity Neptune Class Multi Planet

6.8 Fair

HD 10180 e

HD 10180 e is a radial-velocity exoplanet in the multi-planet system around HD 10180, a Sun-like star about 127 light-ye...

Warm Radial Velocity Neptune Class Multi Planet

6.8 Fair

HD 219134 d

HD 219134 d is an extrasolar planet orbiting the nearby K-type star HD 219134 in the constellation Cassiopeia, about 21...

Warm Radial Velocity Nearby Super Earth

6.8 Fair

HD 40307 c

HD 40307 c is a super-Earth-mass exoplanet orbiting the K-type star HD 40307. It was announced in 2008 from radial-veloc...

Warm Radial Velocity Super Earth Multi Planet

6.5 Fair

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

HD 192310 b

HD 192310 b is a planet with a minimum mass in the Neptune range orbiting the nearby K-type star HD 192310. Its existenc...

Warm Radial Velocity Super Earth Multi Planet

6.5 Fair

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

GJ 273 c

GJ 273 c is a small exoplanet orbiting GJ 273, also known as Luyten's Star, a nearby red dwarf. It was reported in 2017...

Warm Radial Velocity Super Earth Multi Planet

6.2 Fair

GJ 3293 c

GJ 3293 c is an exoplanet detected by measuring the gravitational effect it produces on its host star, the red dwarf GJ...

Warm Radial Velocity Super Earth Multi Planet

6.2 Fair

GJ 357 c

GJ 357 c is a confirmed exoplanet orbiting the nearby M-dwarf star GJ 357. It is classified as a super-Earth and is non-...

Warm Radial Velocity Super Earth Multi Planet

5.8 Mediocre

summarize Quick Comparison Summary

Alternative	Score	vs HD 40307 d	Action
55 Cancri b Exoplanet Warm Giant Radial Velocity	7.8 Good	+1.3	Compare
Upsilon Andromedae c Exoplanet Warm Giant Radial Velocity	7.4 Good	+0.9	Compare
HD 40307 g Exoplanet Radial Velocity Super Earth Habitable Zone	7.4 Good	+0.9	Compare
HD 69830 b Exoplanet Warm Radial Velocity Neptune Class	7.2 Good	+0.7	Compare
61 Virginis b Exoplanet Hot Radial Velocity Super Earth	7.2 Good	+0.7	Compare
55 Cancri c Exoplanet Warm Radial Velocity Neptune Class	7.0 Good	+0.5	Compare
HD 69830 c Exoplanet Warm Radial Velocity Neptune Class	7.0 Good	+0.5	Compare
HD 10180 c Exoplanet Hot Radial Velocity Super Earth	7.0 Good	+0.5	Compare
HD 40307 b Exoplanet Hot Radial Velocity Super Earth	6.8 Fair	+0.3	Compare
61 Virginis c Exoplanet Warm Radial Velocity Super Earth	6.8 Fair	+0.3	Compare

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help Frequently Asked Questions

What are the best alternatives to HD 40307 d?

The top alternatives to HD 40307 d in 2026 include 55 Cancri b, Upsilon Andromedae c, HD 40307 g, HD 69830 b, 61 Virginis b. Each offers unique features and is objectively scored on Lunoo to help you compare.

How does HD 40307 d compare to its competitors?

Our AI-powered comparison system analyzes features, pricing, user reviews, and expert opinions to provide objective scores. HD 40307 d scores 6.5/10. Click any alternative above to see a detailed side-by-side comparison.

Is HD 40307 d worth it in 2026?

HD 40307 d 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 40307 d?

Several alternatives to HD 40307 d 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 40307 d?

Common reasons users look for HD 40307 d 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 40307 d are there?

Lunoo currently lists 20 scored alternatives to HD 40307 d in the Exoplanet category, ranked by our AI-powered evaluation system.

Which HD 40307 d alternative has the highest rating?

55 Cancri b currently holds the highest rating among HD 40307 d alternatives with a score of 7.8/10.

Can I use 55 Cancri b instead of HD 40307 d?

55 Cancri b is one of the top-rated alternatives to HD 40307 d. 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 40307 d?

Pricing varies among HD 40307 d 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 40307 d 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 40307 d vs 55 Cancri b: which is better?

HD 40307 d 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.

HD 40307 d vs Upsilon Andromedae c: which is better?

HD 40307 d scores 6.5/10 while Upsilon Andromedae c scores 7.4/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

HD 40307 d vs HD 40307 g: which is better?

HD 40307 d scores 6.5/10 while HD 40307 g scores 7.4/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

swap_horiz HD 40307 d Alternatives

HD 40307 d

apps Top HD 40307 d Alternatives

55 Cancri b

Upsilon Andromedae c

HD 40307 g

HD 69830 b

61 Virginis b

55 Cancri c

HD 69830 c

HD 10180 c

HD 40307 b

61 Virginis c

HD 10180 d

HD 10180 e

HD 219134 d

HD 40307 c

HD 128311 b

HD 192310 b

HD 192310 c

GJ 273 c

GJ 3293 c

GJ 357 c

summarize Quick Comparison Summary

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