File:590Tomyris_(Lightcurve_Inversion).png · Wikimedia Commons · See Wikimedia Commons
OverviewAI-generated
590 Tomyris is an asteroid located in the asteroid belt, orbiting the Sun. It was discovered by Max Wolf on March 4, 1906, at the Heidelberg-Königstuhl State Observatory. The object is named after Tomyris and carries the provisional designations A906 ED, 1954 ME, and 1955 SJ.
Physically, 590 Tomyris has a diameter of 30.577 km and an albedo of 0.187. Its rotation period is 5.5525 hours, and its absolute magnitude is 10.04. Orbital parameters include a semi-major axis of 2.998832139643839 AU, an eccentricity of 0.0784351718245397, and an inclination of 11.18276543071961 degrees. The periapsis is 2.763618225497923 AU, while the apoapsis is 3.234046053789756 AU.
Synthesized by Vinony from 35 facts across 4 sources: Wikidata, NASA, Jpl Sbdb, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
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
590 Tomyris (A906 ED)
- Orbit class
- Main-belt Asteroid
- Diameter
- 30.577 km
- Albedo
- 0.187
- Rotation period
- 5.553 h
- Absolute magnitude
- 10.040 H
- Earth MOID
- 1.780 AU
via NASA/JPL Small-Body Database
Key facts
- Discovered by
- Max Wolf
- Discovery site
- Heidelberg
- Discovery date
- 4 March 1906
- Pronunciation
- / ˈ t ɒ m ɪ r ɪ s /
- Alternative designations
- 1906 TO
- Observation arc
- 110.12 yr (40221 d)
- Aphelion
- 3.2395 AU (484.62 Gm )
- Perihelion
- 2.7564 AU (412.35 Gm)
- Semi major axis
- 2.9979 AU (448.48 Gm)
- Orbital period sidereal
- 5.19 yr (1896.0 d )
- Mean anomaly
- 166.534 °
- Mean motion
- 0° 11 23.532 / day
- Inclination
- 11.174°
- Longitude of ascending node
- 106.157°
- Argument of perihelion
- 339.791°
- Mean radius
- 19.935 ± 0.7 km
- Synodic rotation period
- 5.562 h (0.2318 d )
- Geometric albedo
- 0.1218 ± 0.009
via Wikipedia infobox
Wikidata facts
- Instance of
- asteroid
- Named after
- Tomyris
- Followed by
- Q155725
- Follows
- Q155708
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 30.577
- Orbital period
- 1896.822366113149
- Image
- 590Tomyris (Lightcurve Inversion).png
Show 18 more facts
- discoverer or inventor
- Max Wolf
- site of astronomical discovery
- Heidelberg-Königstuhl State Observatory
- provisional designation
- 1955 SJ
- time of discovery or invention
- 1906-03-04
- orbital inclination
- 11.18276543071961
- Commons category
- 590 Tomyris
- albedo
- 0.187
- rotation period
- 5.5525
- absolute magnitude
- 10.04
- orbital eccentricity
- 0.0784351718245397
- semi-major axis of an orbit
- 2.998832139643839
- periapsis
- 2.763618225497923
- apoapsis
- 3.234046053789756
- longitude of ascending node
- 105.9781150386881
- argument of periapsis
- 336.5515757204143
- mean anomaly
- 95.01050473333316
- time of periapsis
- 2460499.8943044613
- epoch
- November 21, 2025
Sources (2)
via Wikidata · CC0
~1 min read
Encyclopedic overview
590 Tomyris is a minor planet orbiting the Sun. Its name derives from the Massagetean (ancient Eastern Iranian) ruler Tomyris, and may have been inspired by the asteroid's provisional designation 1906 TO.
References
Excerpted from Wikipedia’s “590 Tomyris” article, available under the CC BY-SA 4.0 licence.