File:304_Olga.png · Wikimedia Commons · See Wikimedia Commons
In the Vinony graph
Within Vinony's link graph, 304 Olga is referenced by 11 other articles, and connects out to Vienna, day and comet.
Vinony files it under Astronomical objects discovered in 1891, Background asteroids and C-type asteroids (Tholen).
Its subject is documented across 39 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
- Johann Palisa
- Discovery date
- 14 February 1891
- Pronunciation
- / ˈ ɒ l ɡ ə / , German: [ ˈɔlɡaː ]
- Alternative designations
- A891 CB; 1952 SJ
- Minor planet category
- Main belt
- Observation arc
- 124.78 yr (45577 d)
- Aphelion
- 2.93719 AU (439.397 Gm )
- Perihelion
- 1.86853 AU (279.528 Gm)
- Semi major axis
- 2.40286 AU (359.463 Gm)
- Orbital period sidereal
- 3.72 yr (1360.5 d )
- Mean anomaly
- 63.6148 °
- Mean motion
- 0° 15 52.607 / day
- Inclination
- 15.8530°
- Longitude of ascending node
- 159.080°
- Argument of perihelion
- 172.423°
- Dimensions
- 67.86 ± 2.1 km , 70.30 ± 2.32 km
- Mass
- (1.15 ± 1.12) × 10 kg
- Synodic rotation period
- 18.36 h (0.765 d )
via Wikipedia infobox
Wikidata facts
- Diameter
- 65.99
- Mass
- 327000000000000000
- Orbital period
- 1360.015447029617
- Image
- 304 Olga Orbit Diagram.png
Show 17 more facts
- provisional designation
- A891 CB
- time of discovery or invention
- 1891-02-14
- orbital inclination
- 15.84898527964226
- density
- 2
- rotation period
- 18.36
- apparent magnitude
- 15.11
- Commons category
- 304 Olga
- albedo
- 0.047
- absolute magnitude
- 10.03
- orbital eccentricity
- 0.2224991236511985
- semi-major axis of an orbit
- 2.402316787433514
- periapsis
- 1.867803407496995
- apoapsis
- 2.936830167370033
- longitude of ascending node
- 158.9580423646964
- argument of periapsis
- 172.3880722819265
- mean anomaly
- 243.2304630577602
- time of periapsis
- 2461441.6343721775
Sources (2)
via Wikidata · CC0
~1 min read
Encyclopedic overview
304 Olga is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
It was discovered by Johann Palisa on 14 February 1891 in Vienna.
Excerpted from Wikipedia’s “304 Olga” article, available under the CC BY-SA 4.0 licence.