(1618) Dawn Main-belt Asteroid
Discovered on 5 July 1948 by E. L. Johnson at Johannesburg.
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Where Dawn is today
Seen from above the solar system on 2026-10-14: Dawn is 2.81 au from the Sun and 2.33 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1618 |
| Provisional designation | 1948 NF |
| Orbit class | Main-belt Asteroid |
| Diameter | 17.5 km (#2,581 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.145 |
| Rotation period | 43.6 hours |
| Spectral type | S |
| Absolute magnitude (H) | 11.18 |
| Orbital period | 4.86 years |
| Semi-major axis | 2.87 au |
| Perihelion – aphelion | 2.78 – 2.96 au |
| Eccentricity | 0.0310 |
| Inclination | 3.22° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by E. L. Johnson
- (1568) Aisleen
- (1580) Betulia
- (1585) Union
- (1607) Mavis
- (1609) Brenda
- (1623) Vivian
- (1731) Smuts
- (1760) Sandra
- (1819) Laputa
- (1885) Herero
- (1922) Zulu
- (2546) Libitina
← (1617) Alschmitt · (1619) Ueta →