(40706) Milam Main-belt Asteroid

Discovered on 11 September 1999 by LONEOS at Anderson Mesa.

Stefanie N. Milam (b. 1980) is an astrochemist at NASA Goddard Space Flight Center. Her expertise ranges across the electromagnetic spectrum and from interstellar ices to evolved stars to solar system objects. She is Deputy Project Scientist for Planetary Science for the James Webb Space Telescope.Naming citation (WGSBN Bull. 1, #2, 21), IAU / Minor Planet Center, via NASA/JPL

Where Milam is today

MercuryVenusEarthEarthMarsMarsMilamMilam

Seen from above the solar system on 2026-10-14: Milam is 3.23 au from the Sun and 4.11 au from Earth. Computed from JPL's orbital elements.

Facts

Number40706
Provisional designation1999 RO240
Orbit classMain-belt Asteroid
Diameter10.2 km (#5,008 largest of 17,440 named asteroids with a measured size)
Albedo0.0330
Absolute magnitude (H)14.43
Orbital period4.94 years
Semi-major axis2.90 au
Perihelion – aphelion2.55 – 3.24 au
Eccentricity0.119
Inclination18.1°
Closest distance between its orbit and Earth's (MOID)1.55 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also discovered on 11 September 1999

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