Discovered by Denis Bergeron Alternative names 1999 DN4 Orbital period 1,910 days Orbits Sun Discovery site Val-des-Bois MPC designation 74503 | Discovery date 23 February 1999 Observation arc 7693 days (21.06 yr) Discovered 23 February 1999 Discoverer Denis Bergeron Asteroid group Asteroid belt | |
Aphelion 3.5689053 AU (533.90063 Gm) Perihelion 2.4583088 AU (367.75776 Gm) | ||
74503 Madola (1999 DN4) is a main-belt asteroid discovered on February 23, 1999, by Denis Bergeron at Val-des-Bois(Quebec).
In mid-2009, it was officially named Madola by the International Astronomical Union, in honor of Christian Marois (b. 1974), René Doyon (b. 1963) and David Lafrenière (b. 1978), who developed instruments and techniques that allowed the first direct photograph of an extrasolar planetary system, consisting of three planets orbiting the star HR 8799 in Pegasus.
Doyon was director of the Mont-Mégantic Observatory in Quebec; Marois and Lafrenière were postdoctoral fellows at the Herzberg Institute of Astrophysics and the University of Toronto.
References
74503 Madola Wikipedia(Text) CC BY-SA