Key facts
- Discovered by
- E. F. Helin and S. J. Bus
- Discovery site
- Palomar
- Discovery date
- 17 April 1977
- Pronunciation
- / æ r ɪ ˈ s t iː ə s /
- Named after
- Aristaeus
- Alternative designations
- 1977 HA
- Minor planet category
- PHA
- Observation arc
- 37.19 yr (13585 days)
- Aphelion
- 2.40409 AU (359.647 Gm )
- Perihelion
- 0.79485 AU (118.908 Gm)
- Semi major axis
- 1.5995 AU (239.28 Gm)
- Orbital period sidereal
- 2.02 yr (738.86 d )
- Mean anomaly
- 83.4440 °
- Mean motion
- 0° 29 14.046 / day
- Inclination
- 23.06145°
- Longitude of ascending node
- 191.221°
- Argument of perihelion
- 290.8743°
- Earth moid
- 0.00972802 AU (1,455,291 km)
via Wikipedia infobox
Wikidata facts
- Instance of
- near-Earth asteroid
- Named after
- Aristaeus
- Followed by
- 2136 Jugta
- Follows
- 2134 Dennispalm
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Orbital period
- 738.9638465947008
Show 16 more facts
- semi-major axis of an orbit
- 1.599618836636408
- discoverer or inventor
- Eleanor F. Helin
- site of astronomical discovery
- Palomar Observatory
- provisional designation
- 1977 HA
- time of discovery or invention
- 1977-04-17
- orbital eccentricity
- 0.5030860272069245
- absolute magnitude
- 18.05
- argument of periapsis
- 290.9802572426059
- orbital inclination
- 23.07237482818519
- mean anomaly
- 37.18009347122379
- periapsis
- 0.7948729510676352
- apoapsis
- 2.404364722205181
- longitude of ascending node
- 191.1088688963965
- Commons category
- 2135 Aristaeus
- time of periapsis
- 2460924.1812641993
- epoch
- November 21, 2025
Sources (2)
via Wikidata · CC0
~1 min read
Encyclopedic overview
2135 Aristaeus (1977 HA) is an Apollo asteroid discovered on 17 April 1977, by E. F. Helin and S. J. Bus at Palomar Observatory. It is named for Aristaeus, the son of Apollo and the nymph Cyrene.
2135 Aristaeus is a potentially hazardous asteroid (PHA) because its minimum orbit intersection distance (MOID) is less than 0.05 AU and its diameter is greater than 150 meters. The Earth-MOID is 0.0100 AU (1,500,000 km; 930,000 mi). Its orbit is well-determined for the next several hundred years.
Excerpted from Wikipedia’s “2135 Aristaeus” article, available under the CC BY-SA 4.0 licence.