In the Vinony graph
Vinony's link graph records 11 inbound references to Q154719, and connects out to Sun, day and comet.
It sits within the topics Astronomical objects discovered in 1902, Background asteroids and Discoveries by Max Wolf.
Vinony links it to 40 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
- Max Wolf
- Discovery site
- Heidelberg
- Discovery date
- 3 March 1902
- Pronunciation
- / p ɛ ˈ t r aɪ n ə /
- Alternative designations
- 1902 HT
- Observation arc
- 111.53 yr (40737 d)
- Aphelion
- 3.2971 AU (493.24 Gm )
- Perihelion
- 2.7064 AU (404.87 Gm)
- Semi major axis
- 3.0017 AU (449.05 Gm)
- Orbital period sidereal
- 5.20 yr (1899.6 d )
- Mean anomaly
- 287.189 °
- Mean motion
- 0° 11 22.272 / day
- Inclination
- 14.474°
- Longitude of ascending node
- 179.408°
- Argument of perihelion
- 86.737°
- Mean radius
- 23.285 ± 1.4 km
- Synodic rotation period
- 11.7922 h (0.49134 d )
- Geometric albedo
- 0.2372 ± 0.032
via Wikipedia infobox
Wikidata facts
- Diameter
- 45.751
- Orbital period
- 1902.727117606765
Show 14 more facts
- provisional designation
- A902 EH
- time of discovery or invention
- 1902-03-03
- orbital inclination
- 14.45403032959663
- albedo
- 0.246
- rotation period
- 11.7922
- absolute magnitude
- 8.91
- orbital eccentricity
- 0.0950485050760461
- semi-major axis of an orbit
- 3.005052431882626
- periapsis
- 2.719426690557046
- apoapsis
- 3.290678173208207
- longitude of ascending node
- 179.0548421617347
- argument of periapsis
- 89.98638160862662
- mean anomaly
- 208.9493310675178
- time of periapsis
- 2461798.8561219736
Sources (2)
via Wikidata · CC0
~1 min read
Encyclopedic overview
482 Petrina is a minor planet orbiting the Sun.
Attempts to produce a light curve for this object have yielded differing synodic rotation periods, perhaps in part because the period is close to half an Earth day. Observations suggest that the pole of rotation is near the orbital plane, yielding only small light variations during certain parts of each orbit. Attempts to observe the asteroid photometrically during an optimal viewing period of the object's orbit gave a rotation period of 11.7922 ± 0.0001 h with an amplitude variation of 0.53 ± 0.05 in magnitude.
Excerpted from Wikipedia’s “Q154719” article, available under the CC BY-SA 4.0 licence.