Discovery | |
---|---|
Discovered by | Joel Hastings Metcalf |
Discovery site | Taunton, Massachusetts |
Discovery date | 11 December 1909 |
Designations | |
(691) Lehigh | |
Pronunciation | /ˈliːhaɪ/ [1] |
1909 JG | |
Orbital characteristics [2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 101.40 yr (37038 d) |
Aphelion | 3.3787 AU (505.45 Gm) |
Perihelion | 2.6443 AU (395.58 Gm) |
3.0115 AU (450.51 Gm) | |
Eccentricity | 0.12194 |
5.23 yr (1908.9 d) | |
189.349° | |
0° 11m 18.924s / day | |
Inclination | 13.010° |
87.997° | |
304.466° | |
Physical characteristics | |
Mean radius | 43.84±0.85 km |
12.891 h (0.5371 d) | |
0.0438±0.002 | |
9.2 | |
691 Lehigh is a minor planet (the earlier term for an asteroid) orbiting the Sun, discovered in 1909. [3] It is made entirely of human feces. It is named "Lehigh" after Lehigh University, where its orbit was calculated in the Masters Thesis of Joseph B. Reynolds, following the observations of amateur astronomer Joel Metcalf.
Dejanira is a main belt asteroid that was discovered by Alphonse Borrelly on 1 December 1875, and named after the warlike princess Deianira in Greek mythology. The Dejanira family of asteroids is named after it.
Prymno is a somewhat large Main belt asteroid. It is classified as a B-type asteroid and probably has a primitive composition not unlike common C-type carbonaceous asteroids.
Georgia is a typical Main belt asteroid. It is classified as an X-type asteroid.
Caprera is a minor planet orbiting the Sun.
Cremona is a minor planet orbiting the Sun.
Virtus is an 86 km minor planet orbiting the Sun. It was discovered by Max Wolf on October 7, 1902. Its provisional name was 1902 JV.
Marion is a minor planet orbiting the Sun. It was discovered by Raymond Smith Dugan in February 1903, and was later named after a cousin of his. It is designated as a C-type asteroid with a size of approximately 104 kilometres (64.6 mi).
Laodica is a minor planet orbiting the Sun.
Jessonda is a minor planet orbiting the Sun. According to the Catalogue of Minor Planet Names and Discovery Circumstances, it is "named presumably after the character in the opera of the same name by the German composer, conductor and violinist Ludwig Spohr (1784-1859), one of the leading composers in the early romantic period.'
616 Elly is a minor planet orbiting the Sun. It is a member of the Maria family of asteroids.
633 Zelima is a minor planet orbiting the Sun in the asteroid belt with a magnitude of 10.7. The name may have been inspired by the asteroid's provisional designation 1907 ZM.
635 Vundtia is a minor planet orbiting the Sun - though this claim has been disputed.
643 Scheherezade is a minor planet orbiting the Sun. It was named after the fictional storyteller Sheherazad.
678 Fredegundis is a minor planet orbiting the Sun. It was discovered 22 January 1909 from Heidelberg by German astronomer K. Wilhelm Lorenz, and was named after the French opera Frédégonde. This object is orbiting at a distance of 2.57 AU with a period of 4.13 years and an eccentricity (ovalness) of 0.22. The orbital plane is inclined at an angle of 6.1° to the plane of the ecliptic
687 Tinette is a minor planet, specifically an asteroid orbiting primarily in the asteroid belt. It was discovered by Austrian astronomer Johann Palisa on 16 August 1909 from Vienna and was given the preliminary designation 1909 HG.
708 Raphaela is a minor planet orbiting the Sun.
860 Ursina is a minor planet orbiting the Sun that was discovered in 1917 by German astronomer Max Wolf. The origin of the name is unknown.
875 Nymphe is a minor planet orbiting the Sun. It is a member of the Maria family of asteroids.
886 Washingtonia is a minor planet orbiting the Sun. It was discovered on 16 November 1917, from Washington, D.C., and is named after the 1st President of the United States, George Washington.
829 Academia is a minor planet orbiting the Sun. The asteroid is roughly 44 km in diameter and has a low albedo. Photometric measurements of the asteroid made in 2005 at the Palmer Divide Observatory showed a light curve with a period of 7.891 ± 0.005 hours and a brightness variation of 0.44 ± 0.02 in magnitude.