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65 Cybele

File:Cybele_ZIMPOL.png · Wikimedia Commons · See Wikimedia Commons

EntityQ156149· pop 48· linked from 51 articles

Also known as (65) Cybele, Cybele

outer main-belt asteroid

Picture of the Day · NASA

Pathfinder on Mars

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
E. W. Tempel
Discovery site
Marseille Obs.
Discovery date
8 March 1861
Pronunciation
/ ˈ s ɪ b ə l iː /
Named after
Cybele , (Hellenistic deity)
Alternative designations
1949 YQ
Minor planet category
main belt · ( outer ) , Cybele
Adjectives
Cybelean / ˌ s ɪ b ə ˈ l iː ə n / , rarely Cybelian / s ɪ ˈ b ɛ l i ə n /
Observation arc
155.98 yr (56,971 d )
Aphelion
3.8102 AU
Perihelion
3.0464 AU
Semi major axis
3.4283 AU
Orbital period sidereal
6.35 yr (2,319 days)
Mean anomaly
168.06 °
Mean motion
0° 9 19.08 / day
Inclination
3.5627°
Longitude of ascending node
155.63°
Argument of perihelion
102.37°

via Wikipedia infobox

Wikidata facts

Instance of
asteroid
Named after
Cybele
Followed by
66 Maja
Parent body
Sun
Diameter
237.26
Orbital period
2297.651769014972
Image
000065-asteroid shape model (65) Cybele.png
Show 19 more facts
discoverer or inventor
Wilhelm Tempel
site of astronomical discovery
Marseille Observatory
provisional designation
A861 EB
time of discovery or invention
1861-03-08
asteroid spectral type
X-type asteroid
orbital inclination
3.564948573675304
albedo
0.0706
Commons category
65 Cybele
rotation period
6.0814
absolute magnitude
6.83
orbital eccentricity
0.1277298484584262
semi-major axis of an orbit
3.407667304299327
periapsis
2.97240647592444
apoapsis
3.842928132674213
longitude of ascending node
155.0988086609751
argument of periapsis
104.1394103311971
mean anomaly
272.6326811906559
time of periapsis
2461558.1102072676
Sources (2)

via Wikidata · CC0

~5 min read

Encyclopedic overview

65 Cybele is one of the largest asteroids in the Solar System. It is located in the outer asteroid belt. It is thought to be a remnant primordial body. It gives its name to the Cybele group of asteroids that orbit outward from the Sun from the 2:1 orbital resonance with Jupiter. The X-type asteroid has a relatively short rotation period of 6.0814 hours. It was discovered by Wilhelm Tempel in 1861, and named after Cybele, the earth goddess.

Discovery and naming

Excerpted from Wikipedia’s “65 Cybele” article, available under the CC BY-SA 4.0 licence.

Gallery (3)