Mike Alexandersen

Academic website

Center for Astrophysics | Harvard & Smithsonian
Solar, Stellar and Planetary Sciences Division
Minor Planet Center


Mike Alexandersen is a MPC Fellow at the Minor Planet Center (MPC), located at the Center for Astrophysics | Harvard & Smithsonian (CfA) in Cambridge, Massachusetts, USA.

Mike holds a B.Sc. and a M.Sc. degrees in astronomy at the University of Copenhagen in Copenhagen, Denmark, and a Ph.D. in astronomy from the University of British Columbia in Vancouser, British Columbia, Canada. After his Ph.D. Mike was a Postdoctoral Research Fellow at the Academia Sinica Institute of Astronomy and Astrophysics in Taipei, Taiwan, for 4.5 years before coming to CfA.

Mike's research focuses on the outer Solar System, the Kuiper Belt and Trans-Neptunian Objects (TNOs), although he also works on Centaurs, coorbital asteroids, and natural satellites of the giant planets.

Mike's MPC services include processing of observations of TNOs and natural satellites, as well as code development.

Research (WIP)

Research related stuff here.

  1. LiDO
  2. Shifty
  3. NatSat stuff


Logo of the LiDO survey.
LiDO logo.

The Large Inclination Distant Objects (LiDO) survey is currently one of my main research projects.


Something else I'm working on.

NatSat stuff

Something else I'm working on.

Useful links

Basically my bookmarks:


Logo of the LiDO survey
LiDO logo. The star over the 'i' is the Sun, the dot in the middle of the 'o' is Neptune, and the curves are the orbits of the Plutinos discovered in the A-semester (11 objects, light blue) and B-semester (11 objects, dark blue) of the survey, in a frame of reference looking down from the ecliptic north pole, co-rotating with Neptune (so that Neptune appears to not move).