File:387_Aquitania.png · 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
- F. Courty
- Discovery site
- Bordeaux Obs.
- Discovery date
- 5 March 1894
- Pronunciation
- / æ k w ɪ ˈ t eɪ n i ə /
- Named after
- Aquitaine , (Roman Gallia Aquitania )
- Alternative designations
- 1894 AZ · 1945 NA, 1948 BG · 1953 EO 1
- Minor planet category
- main-belt · ( middle ) , Postrema
- Observation arc
- 123.56 yr (45,132 days)
- Aphelion
- 3.3853 AU
- Perihelion
- 2.0964 AU
- Semi major axis
- 2.7409 AU
- Orbital period sidereal
- 4.54 yr (1,657 days)
- Mean anomaly
- 330.99 °
- Mean motion
- 0° 13 1.92 / day
- Inclination
- 18.113°
- Longitude of ascending node
- 128.24°
- Argument of perihelion
- 157.14°
- Dimensions
- 97.33 ± 3.42 km , 100.51 ± 2.9 km , 105.06 ± 1.34 km
via Wikipedia infobox
Wikidata facts
- Instance of
- asteroid
- Named after
- Gallia Aquitania
- Followed by
- 388 Charybdis
- Follows
- 386 Siegena
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 100.51
- Mass
- 1.8
- Orbital period
- 1653.600851676674
Show 19 more facts
- discoverer or inventor
- Fernand Courty
- site of astronomical discovery
- Bordeaux Observatory
- provisional designation
- 1953 EO1
- time of discovery or invention
- 1894-03-05
- asteroid spectral type
- L-type asteroid
- orbital inclination
- 18.14877101697493
- albedo
- 0.190
- Commons category
- 387 Aquitania
- rotation period
- 24.144
- absolute magnitude
- 7.49
- orbital eccentricity
- 0.2383510981493381
- semi-major axis of an orbit
- 2.736664174793998
- periapsis
- 2.084377263465897
- apoapsis
- 3.3889510861221
- longitude of ascending node
- 127.9914806884353
- argument of periapsis
- 157.7527235600954
- mean anomaly
- 262.2038664109041
- time of periapsis
- 2461449.7104716487
- epoch
- November 21, 2025
Sources (3)
via Wikidata · CC0
~3 min read
Encyclopedic overview
Orbital diagram depicting Aquitania's 18° inclination. 387 Aquitainia, provisional designation 1894 AZ, is a Postremian asteroid from the central regions of the asteroid belt, approximately 101 kilometers in diameter. Discovered by Fernand Courty at the Bordeaux Observatory in 1894, it was named for the French region of Aquitaine, the former province of Gallia Aquitania in the ancient Roman Empire.
Discovery
Excerpted from Wikipedia’s “387 Aquitania” article, available under the CC BY-SA 4.0 licence.