OverviewAI-generated
1158 Luda is an asteroid located in the asteroid belt, orbiting the Sun. It was discovered on August 31, 1929, by Grigory Neujmin at the Simeiz Observatory. The object carries the provisional designations 1929 QF, 1954 UQ1, 1958 TG1, and 1972 GC. Its name honors Lyudmila.
Physical measurements indicate a diameter of 18.636 km and an albedo of 0.2329, with a rotation period of 6.863 hours. The absolute magnitude is listed as 10.93. Orbital parameters include a semi-major axis of 2.5648495, an eccentricity of 0.1137871070199107, and an inclination of 14.82861. The periapsis is 2.2762849 and the apoapsis is 2.855051289431275. The orbital period is 1499.049656495606.
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
1158 Luda (1929 QF)
- Orbit class
- Main-belt Asteroid
- Diameter
- 18.636 km
- Albedo
- 0.221
- Rotation period
- 6.863 h
- Absolute magnitude
- 10.920 H
- Earth MOID
- 1.310 AU
via NASA/JPL Small-Body Database
Key facts
- Discovered by
- G. Neujmin
- Discovery site
- Simeiz Obs.
- Discovery date
- 31 August 1929
- Named after
- Ludmilla Neujmin, (discoverer's sister)
- Alternative designations
- 1929 QF · 1954 UQ 1 , 1958 TG 1 · 1972 GC
- Minor planet category
- main-belt · Maria · Eunomia
- Observation arc
- 87.27 yr (31,876 days)
- Aphelion
- 2.8532 AU
- Perihelion
- 2.2742 AU
- Semi major axis
- 2.5637 AU
- Orbital period sidereal
- 4.11 yr (1,499 days)
- Mean anomaly
- 56.051 °
- Mean motion
- 0° 14 24.36 / day
- Inclination
- 14.834°
- Longitude of ascending node
- 344.74°
- Argument of perihelion
- 56.226°
- Dimensions
- 18.636 ± 0.207 km , 18.70 ± 0.48 km , 19.06 ± 0.8 km ( IRAS :8) , 20.596 ± 0.130 km
- Synodic rotation period
- 6.86 ± 0.01 h , 6.863 ± 0.005 h , 6.870 ± 0.005 h , 6.90 ± 0.01 h , 7.44 h
via Wikipedia infobox
~3 min read
Encyclopedic overview
1158 Luda, provisional designation 1929 QF, is a stony asteroid from the middle regions of the asteroid belt, approximately 19 kilometers in diameter. It was discovered on 31 August 1929, by Soviet astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula. It was named after Ludmilla Neujmin, the sister of the discoverer.
Orbit and classification
Excerpted from Wikipedia’s “1158 Luda” article, available under the CC BY-SA 4.0 licence.