File:000155-asteroid_shape_model_(155)_Scylla.png · Wikimedia Commons · See Wikimedia Commons
In the Vinony graph
Vinony's link graph records 8 inbound references to 155 Scylla, and connects out to asteroid spectral type, asteroid belt and asteroid family.
It is catalogued under topics including Astronomical objects discovered in 1875, Background asteroids and Discoveries by Johann Palisa.
Vinony links it to 45 Wikipedia language editions.
Picture of the Day · NASA
Pathfinder on Mars
2026-07-04
On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.
via NASA APOD
Key facts
- Discovered by
- J. Palisa
- Discovery site
- Austrian Naval Obs.
- Discovery date
- 8 November 1875
- Pronunciation
- / ˈ s ɪ l ə /
- Named after
- Scylla (Greek mythology)
- Alternative designations
- A875 VE; 1907 TJ;, 1930 UN; 1930 XS;, 1934 RU; 1939 TK;, 1941 HL; 1950 FL;, 1950 FN
- Minor planet category
- main-belt · ( middle ) , background
- Observation arc
- 142.38 yr (52,004 d)
- Aphelion
- 3.5207 AU
- Perihelion
- 1.9916 AU
- Semi major axis
- 2.7562 AU
- Orbital period sidereal
- 4.58 yr (1,671 d)
- Mean anomaly
- 2.9234 °
- Mean motion
- 0° 12 55.44 / day
- Inclination
- 11.388°
- Longitude of ascending node
- 40.994°
- Argument of perihelion
- 45.838°
- Mean diameter
- 32.90 ± 12.33 km , 39.21 ± 0.97 km , 39.605 ± 0.198 km , 39.88 ± 3.8 km , 41.38 ± 11.37 km , 45.482 ± 0.215 km
via Wikipedia infobox
Wikidata facts
- Instance of
- asteroid
- Named after
- Scylla
- Followed by
- 156 Xanthippe
- Follows
- 154 Bertha
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 39.605
- Orbital period
- 1675.764409455273
- Image
- 000155-asteroid shape model (155) Scylla.png
Show 19 more facts
- discoverer or inventor
- Johann Palisa
- site of astronomical discovery
- Pula Observatory
- provisional designation
- A875 VE
- time of discovery or invention
- 1875-11-08
- orbital inclination
- 11.35900067442896
- albedo
- 0.027
- Commons category
- 155 Scylla
- rotation period
- 7.9597
- asteroid spectral type
- X-type asteroid
- absolute magnitude
- 11.15
- orbital eccentricity
- 0.2728065742962906
- semi-major axis of an orbit
- 2.761063259920311
- periapsis
- 2.007827050566102
- apoapsis
- 3.51429946927452
- longitude of ascending node
- 40.52977186955957
- argument of periapsis
- 46.85230469221904
- mean anomaly
- 243.941806028161
- time of periapsis
- 2461540.7394191213
- epoch
- November 21, 2025
Sources (2)
via Wikidata · CC0
~1 min read
Encyclopedic overview
155 Scylla is a main belt asteroid. It was discovered by Austrian astronomer Johann Palisa at the Austrian Naval Observatory on 8 November 1875, and named after the monster Scylla in Greek mythology. Two weeks after its discovery this asteroid became lost and was not recovered for 95 years. It was finally found by Paul Wild of Berne, Switzerland with the aid of an ephemeris created in 1970 by Conrad M. Bardwell at Cincinnati Observatory.
Photometric observations of this asteroid during 2008 at the Organ Mesa Observatory in Las Cruces, New Mexico, gave an asymmetrical, bimodal light curve with a period of 7.9597 ± 0.0001 hours and a brightness variation of 0.46 ± 0.03 in magnitude.
Excerpted from Wikipedia’s “155 Scylla” article, available under the CC BY-SA 4.0 licence.