File:298Bap-LB1-mag15.jpg · Wikimedia Commons · See Wikimedia Commons
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
- Auguste Charlois
- Discovery site
- Nice , France
- Discovery date
- 9 September 1890
- Alternative designations
- A890 RB
- Minor planet category
- Main belt Baptistina family
- Observation arc
- 123.99 years
- Aphelion
- 2.049 AU
- Perihelion
- 2.049 AU
- Semi major axis
- 2.264 AU
- Orbital period sidereal
- 3.407 years
- Mean anomaly
- 113.57°
- Mean motion
- 0° 17 21.588 / day
- Inclination
- 6.279°
- Longitude of ascending node
- 8.112°
- Argument of perihelion
- 134.99°
- Earth moid
- 1.065 AU
- Jupiter moid
- 2.525 AU
- Dimensions
- 13–30 km (8.1–18.6 mi)
via Wikipedia infobox
Wikidata facts
- Instance of
- asteroid
- Followed by
- 299 Thora
- Follows
- 297 Caecilia
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 21.135
- Orbital period
- 1244.391898215943
- Image
- 298Bap-LB1-mag15.jpg
Show 19 more facts
- discoverer or inventor
- Auguste Charlois
- site of astronomical discovery
- Nice Observatory
- time of discovery or invention
- 1890-09-09
- asteroid family
- Baptistina family
- orbital inclination
- 6.279760380251505
- Commons category
- 298 Baptistina
- provisional designation
- A890 RB
- albedo
- 0.131
- rotation period
- 16.23
- absolute magnitude
- 11.21
- orbital eccentricity
- 0.09513326540816947
- semi-major axis of an orbit
- 2.264153318521365
- periapsis
- 2.048757019945684
- apoapsis
- 2.479549617097045
- longitude of ascending node
- 8.112399524867067
- argument of periapsis
- 134.9891005368659
- mean anomaly
- 113.5685774758595
- time of periapsis
- 2460607.933839714
- epoch
- November 21, 2025
Sources (2)
via Wikidata · CC0
~1 min read
Encyclopedic overview
298 Baptistina is an asteroid orbiting in the asteroid belt. It is the namesake of the Baptistina family. It was discovered on 9 September 1890 by Auguste Charlois of Nice. The source of its name is unknown. It measures about 13–30 km (8.1–18.6 mi) in diameter. Although it has an orbit similar to the Flora family asteroids, it was once considered a possible source of the impactor that caused the extinction of the dinosaurs, a possibility ruled out by the Wide-field Infrared Survey Explorer (WISE) in 2011.
Orbit of Baptistina
Excerpted from Wikipedia’s “298 Baptistina” article, available under the CC BY-SA 4.0 licence.