description Sh2-155 Overview
Sh2-155 is the Cave Nebula in Cepheus, a Caldwell 9 H II region on the Cepheus B cloud with ongoing star formation about 2,400 light-years away.
insights Why this score
Sh2-155 ranks #174 of 577 in the Nebula ranking, behind Messier 78, ahead of Calabash Nebula.
Cave Nebula is a well-known Sharpless object with strong visual identity and widespread imaging popularity.
help Sh2-155 FAQ
How good is Sh2-155?
Sh2-155 scores 8.02/10 (Great) on Lunoo, making it a well-rated option in the Nebula category. Cave Nebula is a well-known Sharpless object with strong visual identity and widespread imaging popularity.
What are the best alternatives to Sh2-155?
See our alternatives page for Sh2-155 for a ranked list with scores. Top alternatives include: Elephant's Trunk Nebula, Sh2-129, Flying Bat Nebula.
How does Sh2-155 compare to Elephant's Trunk Nebula?
See our detailed comparison of Sh2-155 vs Elephant's Trunk Nebula with scores, features, and an AI-powered verdict.
Is Sh2-155 worth it in 2026?
With a score of 8.02/10, Sh2-155 is highly rated in Nebula. See all Nebula ranked.
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