(919) Ilsebill Main-belt Asteroid

Discovered on 30 October 1918 by M. F. Wolf at Heidelberg.

Where Ilsebill is today

MercuryVenusEarthEarthMarsMarsIlsebillIlsebill

Seen from above the solar system on 2026-10-14: Ilsebill is 2.99 au from the Sun and 3.94 au from Earth. Computed from JPL's orbital elements.

Facts

Number919
Provisional designationA918 UD
Orbit classMain-belt Asteroid
Diameter33.5 km (#1,208 largest of 17,440 named asteroids with a measured size)
Albedo0.0470
Rotation period5.03 hours
Spectral typeC
Absolute magnitude (H)11.63
Orbital period4.62 years
Semi-major axis2.77 au
Perihelion – aphelion2.53 – 3.01 au
Eccentricity0.0861
Inclination8.16°
Closest distance between its orbit and Earth's (MOID)1.54 au

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

Also discovered on 30 October 1918

More named asteroids discovered by M. F. Wolf