| Minorplanet: | yes |
| Background: |
|
| 780 Armenia | |
| Mpc Name: | (780) Armenia |
| Alt Names: | 1914 UC |
| Pronounced: | [1] |
| Discovered: | 25 January 1914 |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Eccentricity: | 0.097135 |
| Semimajor: | 3.1144AU |
| Perihelion: | 2.8119AU |
| Aphelion: | 3.4169abbr=onNaNabbr=on |
| Period: | 5.50 yr (2007.5 d) |
| Inclination: | 19.085° |
| Asc Node: | 144.857° |
| Arg Peri: | 214.403° |
| Mean Motion: | / day |
| Observation Arc: | 107.14 yr (39134 d) |
| Uncertainty: | 0 |
| Abs Magnitude: | 9.00 |
| Rotation: | 19.891abbr=onNaNabbr=on |
| Mean Radius: | km |
780 Armenia is a minor planet in the asteroid belt orbiting the Sun. It is named after the Kingdom of Armenia, now Armenia. This object is orbiting at a distance of with an eccentricity of 0.097 and a period of 2007.52NaN2. The orbital plane is inclined at an angle of 19.1° to the plane of rotation. This asteroid spans a girth of ~94 km. The long rotation period of this asteroid necessitated light curve data from more than one latitude. The overlapping data provided a solution with a period of and a brightness amplitude of in magnitude.
This object is the namesake of the Armenia family, a family of 13–76 asteroids that share similar spectral properties and orbital elements; hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.