Astronomy:2135 Aristaeus
| Discovery | |
|---|---|
| Discovered by | E. F. Helin and S. J. Bus |
| Discovery site | Palomar |
| Discovery date | 17 April 1977 |
| Designations | |
| (2135) Aristaeus | |
| Pronunciation | /ærɪˈstiːəs/ |
| Named after | Aristaeus |
| 1977 HA | |
| Minor planet category | PHA[1] |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 1 | |
| Observation arc | 37.19 yr (13585 days) |
| |{{{apsis}}}|helion}} | 2.40409 astronomical unit|AU (359.647 Gm) |
| |{{{apsis}}}|helion}} | 0.79485 AU (118.908 Gm) |
| 1.5995 AU (239.28 Gm) | |
| Eccentricity | 0.50305 |
| Orbital period | 2.02 yr (738.86 d) |
| Mean anomaly | 83.4440° |
| Mean motion | 0° 29m 14.046s / day |
| Inclination | 23.06145° |
| Longitude of ascending node | 191.221° |
| 290.8743° | |
| Earth MOID | 0.00972802 AU (1,455,291 km) |
| Physical characteristics | |
| Absolute magnitude (H) | 17.94[1] |
2135 Aristaeus (1977 HA) is an Apollo asteroid discovered on April 17, 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.[2]
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 astronomical unit|AU (1,500,000 km; 930,000 mi).[1] Its orbit is well-determined for the next several hundred years.
The asteroid made its closest approach to Earth on April 1, 1977, at a nominal distance of 0.03216 AU (4,811,000 km; 2,989,000 mi).[1] It will make its next closest approach on April 2, 2064, at a nominal distance of 0.0546 AU (8,170,000 km; 5,080,000 mi).[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 2135 Aristaeus (1977 HA)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Aristaeus;cad=1.
- ↑ "New Names of Minor Planets", Minor Planet Circular (Cambridge, Mass: Minor Planet Center) (MPC 5014), 1 Nov 1979, ISSN 0736-6884, https://www.minorplanetcenter.net/iau/ECS/MPCArchive/1979/MPC_19791101.pdf
External links
- 2135 Aristaeus at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 2135 Aristaeus at ESA–space situational awareness
- 2135 Aristaeus at the JPL Small-Body Database
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