File:PIA11665_moonlet_in_B_Ring_cropped.jpg · Wikimedia Commons · See Wikimedia Commons
In the Vinony graph
Within Vinony's link graph, S/2009 S 1 is referenced by 152 other articles, and connects out to rings of Saturn, Cassini−Huygens and Mimas.
It sits within the topics Astronomical objects discovered in 2009, Moons of Saturn and Moons with a prograde orbit.
Its subject is documented across 38 Wikipedia language editions.
Key facts
- Discovered by
- Cassini Imaging Team
- Semi major axis
- 116 914 km
- Eccentricity
- ≈ 0.000
- Orbital period sidereal
- 0.4715 d (11.32 h)
- Inclination
- ≈ 0.0
- Satellite of
- Saturn
- Mean diameter
- 0.3 km
- Synodic rotation period
- assumed synchronous
via Wikipedia infobox
Wikidata facts
- Instance of
- moon of Saturn
- Parent body
- Saturn
- Diameter
- 0.4
- Image
- PIA11665 moonlet in B Ring.jpg
Show 7 more facts
- time of discovery or invention
- 2009-07-26
- provisional designation
- S/2009 S 1
- discoverer or inventor
- Cassini
- orbital eccentricity
- 0
- semi-major axis of an orbit
- 117000
- apparent magnitude
- 28
- Commons category
- S/2009 S 1
Sources (3)
via Wikidata · CC0
~3 min read
Encyclopedic overview
S/2009 S 1 is a moonlet embedded in the outer part of Saturn's B Ring, orbiting 117,000 km (73,000 mi) away from the planet. The moonlet was discovered by the Cassini Imaging Team during the Saturnian equinox event on 26 July 2009, when the Cassini spacecraft imaged the moonlet casting a 36 km (22 mi)-long shadow onto the B Ring. With a diameter of 300 m (1,000 ft), it is most likely a long-lived solid body, which would count it as the smallest and innermost known moon of Saturn (as well as being the smallest known natural satellite in the Solar System).
Discovery
Excerpted from Wikipedia’s “S/2009 S 1” article, available under the CC BY-SA 4.0 licence.