What are the key differences between Kepler-138c and Kepler-138d?

Compare Kepler-138c and Kepler-138d side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are Kepler-138c and Kepler-138d scored?

Kepler-138c has an AI score of 8.4/10 and Kepler-138d has an AI score of 8.3/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

Kepler-138c vs Kepler-138d 2026 - Compared

Kepler-138c

Kepler-138d

WINNER Kepler-138c

Kepler-138c edges ahead with a score of 8.4/10 compared to 8.3/10 for Kepler-138d. While both are highly rated in their...

emoji_events WINNER

Kepler-138c edges ahead with a score of 8.4/10 compared to 8.3/10 for Kepler-138d. While both are highly rated in their respective fields, Kepler-138c demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: Kepler-138c

verified Confidence: Low

description Overview

Kepler-138c

Super-Earth in the Kepler-138 system confirmed in 2015, orbiting its M-dwarf host every ~13.8 days in near orbital resonance with the adjacent Mars-sized companion Kepler-138b.

Kepler-138d

Outermost of the three originally confirmed Kepler-138 planets, a super-Earth orbiting its M-dwarf host every ~23.1 days, confirmed in 2015 alongside two inner companions.