428 Monachia
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| Discovery A | |
|---|---|
| Discoverer | Walther Villiger |
| Discovery date | November 18, 1897 |
| Alternate designations B |
1897 DK; 1946 UL; 1949 OE; 1953 TN3; 1974 XU |
| Category | Main belt (Flora family) |
| Orbital elements C | |
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| Eccentricity (e) | 0.179 |
| Semi-major axis (a) | 345.184 Gm (2.307 AU) |
| Perihelion (q) | 283.364 Gm (1.894 AU) |
| Aphelion (Q) | 407.004 Gm (2.721 AU) |
| Orbital period (P) | 1280.202 d (3.51 a) |
| Mean orbital speed | 19.61 km/s |
| Inclination (i) | 6.2° |
| Longitude of the ascending node (Ω) |
17.76° |
| Argument of perihelion (ω) |
15.598° |
| Mean anomaly (M) | 226.711° |
| Physical characteristics D | |
| Dimensions | 18 km[1] |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 0.151 d (3.634 h) [2] |
| Spectral class | unknown |
| Absolute magnitude | 11.5 |
| Albedo (geometric) | 0.114[1] |
| Mean surface temperature |
unknown |
428 Monachia is an asteroid orbiting within the Flora family in the Main Belt.
It was discovered by Walther Villiger on November 18, 1897 in Munich. It was his only asteroid discovery.
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| Minor planets | ||
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| For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |
