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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
Small body data
1419 Danzig (1929 RF)
- Orbit class
- Main-belt Asteroid
- Diameter
- 14.997 km
- Albedo
- 0.260
- Rotation period
- 8.120 h
- Absolute magnitude
- 11.400 H
- Earth MOID
- 0.978 AU
via NASA/JPL Small-Body Database
Key facts
- Discovered by
- K. Reinmuth
- Discovery site
- Heidelberg Obs.
- Discovery date
- 5 September 1929
- Named after
- German name of the, Polish city of Gdańsk
- Alternative designations
- 1929 RF · 1936 RD, 1952 HJ 4 · 1957 WO 1 , A917 GA
- Minor planet category
- main-belt · ( inner ) Flora · background
- Observation arc
- 99.90 yr (36,489 days)
- Aphelion
- 2.6285 AU
- Perihelion
- 1.9570 AU
- Semi major axis
- 2.2927 AU
- Orbital period sidereal
- 3.47 yr (1,268 days)
- Mean anomaly
- 356.63 °
- Mean motion
- 0° 17 2.04 / day
- Inclination
- 5.7254°
- Longitude of ascending node
- 213.53°
- Argument of perihelion
- 232.65°
- Mean diameter
- 14.059 ± 0.096 km , 14.139 km , 14.997 ± 0.382 km , 15.09 ± 0.22 km
- Synodic rotation period
- 8.0 ± 0.1 h 8.1202 ± 0.0001 h
via Wikipedia infobox
Wikidata facts
- Diameter
- 14.997
- Orbital period
- 1268.220487355407
- Image
- 1419Danzig (Lightcurve Inversion).png
Show 15 more facts
- provisional designation
- A917 GA
- time of discovery or invention
- 1929-09-05
- orbital eccentricity
- 0.1470305398969401
- orbital inclination
- 5.725147303372045
- periapsis
- 1.955829716432697
- apoapsis
- 2.630101686542467
- semi-major axis of an orbit
- 2.292965701487582
- mean anomaly
- 185.0559283894959
- longitude of ascending node
- 213.478920354771
- argument of periapsis
- 232.7531101919285
- absolute magnitude
- 11.4
- Commons category
- 1419 Danzig
- albedo
- 0.26
- rotation period
- 8.1202
- time of periapsis
- 2461616.799043772
Sources (2)
via Wikidata · CC0
~4 min read
Article
1419 Danzig (prov. designation: 1929 RF) is a highly elongated Flora asteroid from the inner regions of the asteroid belt. It was discovered on 5 September 1929, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany. The stony S-type asteroid has a rotation period of 8.1 hours and measures approximately 14 kilometers (8.7 miles) in diameter. It was named for the city of Gdańsk (German: Danzig).
Classification and orbit