Discovery | |
---|---|
Discovered by | E. F. Coddington |
Discovery date | 2 October 1899 |
Designations | |
(445) Edna | |
Pronunciation | /ˈɛdnə/ [1] |
1899 EX | |
Main belt | |
Orbital characteristics [2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 116.53 yr (42563 d) |
Aphelion | 3.82552 AU (572.290 Gm) |
Perihelion | 2.57569 AU (385.318 Gm) |
3.20060 AU (478.803 Gm) | |
Eccentricity | 0.19525 |
5.73 yr (2091.4 d) | |
190.102° | |
0° 10m 19.668s / day | |
Inclination | 21.2944° |
292.111° | |
81.2763° | |
Physical characteristics | |
Dimensions | 87.17±2.1 km [2] 88.60 ± 4.10 km [3] |
Mass | (3.47 ± 0.78) × 1018 kg [3] |
Mean density | 9.52 ± 2.50 g/cm3 [3] |
19.97 h (0.832 d) | |
0.0447±0.002 | |
9.29 | |
Edna (minor planet designation: 445 Edna) is a large Main belt asteroid.
It was discovered by E. F. Coddington on October 2, 1899, at Mount Hamilton, California. It was the astronomer's third and final asteroid discovery.
Aethra is a metallic asteroid and Mars-crosser on an eccentric orbit from the asteroid belt. It measures approximately 40 kilometers in diameter.
Germania is a very large main-belt asteroid. It is classified as a B-type asteroid and is probably composed of dark, primitive carbonaceous material.
Desiderata is a very large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
Vaticana is a large Main belt asteroid.
Eichsfeldia is a large main belt asteroid that was discovered by German astronomers Max Wolf and A. Schwassmann on 15 February 1899 in Heidelberg. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material.
Photographica is a typical Main belt asteroid. It is classified as an S-type asteroid.
Aeternitas is a main belt asteroid. It was discovered by Max Wolf and A. Schwassmann on 27 October 1899 in Heidelberg. It is classified as an A-type asteroid. The asteroid is roughly 45 km in diameter and has a high albedo.
Valentine is a large Main belt asteroid.
Patientia is approximately the 15th-largest asteroid in the asteroid belt with a diameter of 225 km. It was discovered by French astronomer Auguste Charlois on 4 December 1899, and assigned a provisional designation 1899 EY.
Bruchsalia is a main-belt asteroid. It was discovered by Max Wolf and Friedrich Karl Arnold Schwassmann on May 22, 1900. Its provisional name was 1900 FG.
Genua is a minor planet orbiting the Sun.
Carina is a minor planet orbiting the Sun.
Evelyn is a main belt asteroid discovered by Raymond Smith Dugan on 19 January 1903. The asteroid was named after Evelyn Smith Dugan, mother of the discoverer.
Marianna is a minor planet orbiting the Sun.
626 Notburga is a large, dark asteroid orbiting the Sun in the asteroid belt.
680 Genoveva is a minor planet orbiting the Sun. It was named after the play Genoveva by Friedrich Hebbel. The name may have been inspired by the asteroid's provisional designation 1909 GW, as W is pronounced 'v' in German, as is V in Latinate names such as 'Genoveva'.
690 Wratislavia is a minor planet orbiting the Sun. Wratislavia was discovered on October 16, 1909. IRAS data shows it is about 135 km in diameter.
769 Tatjana is a minor planet orbiting the Sun. The body was named such after Tatiana Larina, protagonist of Alexander Pushkin's poem "Eugene Onegin". It's possible that the name was suggested by the provisional designation of the asteroid, 1913 TA, but unlike bodies named by Wolf, Knopff and Metcalf in the years 1905–1909, there's no naming pattern to support this.
854 Frostia is a main-belt asteroid orbiting the Sun. It was discovered in 1916 by Sergei Ivanovich Belyavsky from Simeiz Observatory in Crimea and is named after Edwin Brant Frost, an American astronomer. This asteroid measures approximately 8.4 km (5.2 mi) in diameter.
915 Cosette is an S-type asteroid belonging to the Flora family of Main Belt asteroids. Its rotation period is 4.445 hours.