description 140 Siwa Overview
140 Siwa is a main-belt asteroid discovered by Johann Palisa in 1874. It was named after Siwa, a figure associated with the mythology of the ancient Slavs, and is classified as a dark asteroid in the P-type group in the description provided here. The object also became known in spacecraft mission planning because it was considered as a possible flyby target for the European Space Agency's Rosetta mission before the mission trajectory was changed.
help 140 Siwa FAQ
How good is 140 Siwa?
140 Siwa scores 4.92/10 (Poor) on Lunoo, making it rated in the Asteroid category.
What are the best alternatives to 140 Siwa?
See our alternatives page for 140 Siwa for a ranked list with scores. Top alternatives include: 46 Hestia, 56 Melete, 11 Parthenope.
How does 140 Siwa compare to 46 Hestia?
See our detailed comparison of 140 Siwa vs 46 Hestia with scores, features, and an AI-powered verdict.
Is 140 Siwa worth it in 2026?
With a score of 4.92/10, 140 Siwa is a solid option in Asteroid. See all Asteroid ranked.
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