Minorplanet: | yes |
Background: |
|
Discoverer: | Deep Ecliptic Survey |
Discovered: | 20 August 2001 |
88611 Teharonhiawako | |
Mpc Name: | (88611) Teharonhiawako |
Pronounced: | pronounced as /moh/ |
Mp Category: | TNOcubewano cold |
Orbit Ref: |   |
Observation Arc: | 4463 days (12.22 yr) |
Uncertainty: | 3 |
Epoch: | 13 January 2016 (JD 2457400.5) |
Aphelion: | 45.235abbr=onNaNabbr=on |
Perihelion: | 42.454AU |
Semimajor: | 43.845AU |
Eccentricity: | 0.031712 |
Period: | 290.32 yr (106041 d) |
Inclination: | 2.5834° |
Asc Node: | 304.78° |
Arg Peri: | 236.43° |
Mean Anomaly: | 158.44° |
Mean Motion: | 0.0033949°/day |
Satellites: | Sawiskera pronounced as /moh/ |
Mean Diameter: | (combined) (primary) (secondary) |
Abs Magnitude: | 5.8 |
88611 Teharonhiawako (provisional designation ) is a trans-Neptunian object and a member of the cold classical Kuiper belt, measuring about 220 km in diameter. It is a binary object, with a large companion named Sawiskera (formally designated (88611) Teharonhiawako I Sawiskera), which at 126 km in diameter is about two-thirds the size of its primary. The two components together are known as the Teharonhiawako - Sawiskera binary system.
Teharonhiawako was discovered on August 20, 2001, by the Deep Ecliptic Survey, and Sawiskera was identified a month later.
The primary is named after Teharonhia꞉wako, a god of maize in the Iroquois creation myth, while the secondary is named after his evil twin brother Sawiskera. The objects were named in 2007.
Teharonhiawako and Sawiskera is a binary minor planet which orbit each other. Their orbit has the following parameters: semi-major-axis—, period—, eccentricity— and inclination—(retrograde). The total system mass is about 2.4 kg.