File:NASA-14114-HubbleSpaceTelescope-DebrisDisks-20140424.jpg · Wikimedia Commons · See Wikimedia Commons
خردهسیاره
Sign in to savethumb|300px|right|Debris disks detected in HST archival images of young stars, HD 141943 and HD 191089, using improved imaging processes (24 April 2014). thumb|486958 Arrokoth, the first pristine planetesimal visited by a spacecraft.
A planetesimal is a small, rocky object in space that forms in the early stages of planetary development, combining together to eventually create planets. They matter because studying them—like the pristine planetesimal 486958 Arrokoth visited by spacecraft—helps scientists understand how planets form and what the early solar system was like.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Subclass of
- small Solar System body
- Follows
- circumstellar disk
Show 5 more facts
- discoverer or inventor
- Viktor Safronov
- influenced by
- accretion
- start time
- 1904-00-00
- exact match
- purl.obolibrary.org/obo/ENVO_01001148
- Commons category
- Planetesimals
via Wikidata · CC0