2135 Aristaeus
Near-Earth asteroid
title: "2135 Aristaeus" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["apollo-asteroids", "potentially-hazardous-asteroids", "discoveries-by-schelte-j.-bus", "discoveries-by-eleanor-f.-helin", "named-minor-planets", "astronomical-objects-discovered-in-1977"] description: "Near-Earth asteroid" topic_path: "general/apollo-asteroids" source: "https://en.wikipedia.org/wiki/2135_Aristaeus" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Near-Earth asteroid ::
::data[format=table title="Infobox planet"]
| Field | Value |
|---|---|
| minorplanet | yes |
| background | #FFC2E0 |
| name | Aristaeus |
| discoverer | E. F. Helin and S. J. Bus |
| discovery_site | Palomar |
| discovered | 17 April 1977 |
| mpc_name | (2135) Aristaeus |
| alt_names | 1977 HA |
| pronounced | |
| named_after | Aristaeus |
| mp_category | PHA |
| orbit_ref | |
| epoch | 13 January 2016 (JD 2457400.5) |
| aphelion | 2.40409 AU |
| perihelion | 0.79485 AU |
| semimajor | 1.5995 AU |
| eccentricity | 0.50305 |
| period | 2.02 yr (738.86 d) |
| inclination | 23.06145° |
| asc_node | 191.221° |
| mean_anomaly | 83.4440° |
| arg_peri | 290.8743° |
| abs_magnitude | 17.94 |
| observation_arc | 37.19 yr (13585 days) |
| uncertainty | 1 |
| mean_motion | / day |
| moid | 0.00972802 AU |
| :: |
| minorplanet = yes | background = #FFC2E0 | name = Aristaeus | image = | caption = | discovery_ref = | discoverer = E. F. Helin and S. J. Bus | discovery_site = Palomar | discovered = 17 April 1977 | mpc_name = (2135) Aristaeus | alt_names = 1977 HA | pronounced = | named_after = Aristaeus | mp_category = PHA | orbit_ref = | epoch = 13 January 2016 (JD 2457400.5) | aphelion = 2.40409 AU | perihelion = 0.79485 AU | semimajor = 1.5995 AU | eccentricity = 0.50305 | period = 2.02 yr (738.86 d) | inclination = 23.06145° | asc_node = 191.221° | mean_anomaly = 83.4440° | arg_peri = 290.8743° | dimensions = | albedo = | spectral_type = | abs_magnitude = 17.94 | observation_arc = 37.19 yr (13585 days) | uncertainty = 1 | mean_motion = / day | moid = 0.00972802 AU
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. Its orbit is well-determined for the next several hundred years.
The asteroid made its closest approach to Earth on 1 April 1977, at a nominal distance of 0.03216 AU. It will make its next closest approach on 2 April 2064, at a nominal distance of 0.0546 AU.
References
|type=last observation: 2014-06-27 |title=JPL Small-Body Database Browser: 2135 Aristaeus (1977 HA) |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Aristaeus;cad=1 |publisher=Jet Propulsion Laboratory |access-date=15 April 2016}}
References
- "New Names of Minor Planets". [[Minor Planet Center]].
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::