| Minorplanet: | yes |
| 1067 Lunaria | |
| Background: |
|
| Discovered: | 9 September 1926 |
| Mpc Name: | (1067) Lunaria |
| Alt Names: | 1926 RG1974 PJ |
| Named After: | Lunaria |
| Epoch: | 4 September 2017 (JD 2458000.5) |
| Uncertainty: | 0 |
| Observation Arc: | 90.74 yr (33,142 days) |
| Perihelion: | 2.3207 AU |
| Semimajor: | 2.8706 AU |
| Eccentricity: | 0.1916 |
| Period: | 4.86 yr (1,777 days) |
| Mean Motion: | / day |
| Inclination: | 10.547° |
| Asc Node: | 289.59° |
| Arg Peri: | 115.03° |
| Dimensions: | km km 18.07 km km km |
| Rotation: | h h |
| Albedo: | 0.20 |
| Abs Magnitude: | 10.9911.08 |
1067 Lunaria, provisional designation, is a stony Itha asteroid from the outer regions of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 9 September 1926, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the flowering plant Lunaria (honesty).
Lunaria is a member of the Itha family, a very small family of asteroids, named after its parent body 918 Itha.
It orbits the Sun in the outer asteroid belt at a distance of 2.3–3.4 AU once every 4 years and 10 months (1,777 days; semi-major axis of 2.87 AU). Its orbit has an eccentricity of 0.19 and an inclination of 11° with respect to the ecliptic. The body's observation arc begins at Heidelberg in October 1926, one month after its official discovery observation.
Lunaria has been characterized as both L- and S-type asteroid by Pan-STARRS photometric survey. The overall spectral type for the Itha family is that of a stony S-type.
In July 1984, a first rotational lightcurve of Lunaria was obtained by American astronomer Richard Binzel. Lightcurve analysis gave a rotation period of 7.74 hours with a brightness variation of 0.13 magnitude . In September 2004, Donald Pray at the Carbuncle Hill Observatory derived a refined period of 6.057 hours with an amplitude of 0.27 magnitude from photometric observations .
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Lunaria measures between 15.43 and 22.968 kilometers in diameter and its surface has an albedo between 0.1240 and 0.298.
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and derives a diameter of 18.07 kilometers based on an absolute magnitude of 11.08.
This minor planet was named after Lunaria (commonly known as "honesty"), a flowering plant in the mustard family. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 .
Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between and . This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were exclusively named after plants, in particular flowering plants (also see list of minor planets named after animals and plants).