(1636) Porter Main-belt Asteroid

Discovered on 23 January 1950 by K. Reinmuth at Heidelberg.

Where Porter is today

MercuryVenusEarthEarthMarsMarsPorterPorter

Seen from above the solar system on 2026-10-14: Porter is 2.15 au from the Sun and 2.61 au from Earth. Computed from JPL's orbital elements.

Facts

Number1636
Provisional designation1950 BH
Orbit classMain-belt Asteroid
Diameter8.37 km (#6,249 largest of 17,440 named asteroids with a measured size)
Albedo0.145
Rotation period2.97 hours
Spectral typeS
Absolute magnitude (H)12.24
Orbital period3.34 years
Semi-major axis2.23 au
Perihelion – aphelion1.95 – 2.52 au
Eccentricity0.127
Inclination4.44°
Closest distance between its orbit and Earth's (MOID)0.963 au

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

Also discovered on 23 January 1950

More named asteroids discovered by K. Reinmuth