description HB 9 Overview
HB 9 is an ancient supernova remnant in the constellation Cassiopeia, notable for its large angular diameter and estimated age of roughly 5,000 years.
help HB 9 FAQ
How good is HB 9?
HB 9 scores 4.99/10 (Poor) on Lunoo, making it rated in the Nebula category.
What are the best alternatives to HB 9?
See our alternatives page for HB 9 for a ranked list with scores. Top alternatives include: Sharpless 2-91, CTB 1 (Abell 85), Abell 85 (CTB 1).
How does HB 9 compare to Sharpless 2-91?
See our detailed comparison of HB 9 vs Sharpless 2-91 with scores, features, and an AI-powered verdict.
Is HB 9 worth it in 2026?
With a score of 4.99/10, HB 9 is a solid option in Nebula. See all Nebula ranked.
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