691 Lehigh
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| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | December 11, 1909 |
| Designations | |
| Alternative names | 1909 JG |
| Orbital characteristics | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Aphelion | 3.372 AU |
| Perihelion | 2.663 AU |
| Semi-major axis | 3.017 AU |
| Eccentricity | 0.118 |
| Orbital period | 5.242 a |
| Mean anomaly | 158.818° |
| Inclination | 12.990° |
| Longitude of ascending node | 88.374° |
| Argument of perihelion | 301.531° |
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691 Lehigh is a minor planet (the earlier term for an asteroid) orbiting the Sun. It is named "Lehigh" after Lehigh University, where its orbit was calculated in the Masters Thesis of Joseph B. Reynolds, following Metcalf's observations.
External links
- Discovery Circumstances: Numbered Minor Planets
- Lehigh University – Special Collections – Planet Lehigh: Early Astronomy
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