Paul Halpern Quote

There are four major ways in which researchers are hunting for planets. Technically, these are called astrometry, spectroscopy, interferometry, and photometry. For descriptive purposes, however, I refer to them respectively as the wobble method, the speed-trap technique, the zebra-stripe procedure, and the shadow approach.

The Quest for Alien Planets: Exploring Worlds outside the Solar System, Chapter I (p. 16), Plenun Trade. 1997

There are four major ways in which researchers are hunting for planets. Technically, these are called astrometry, spectroscopy, interferometry, and...

There are four major ways in which researchers are hunting for planets. Technically, these are called astrometry, spectroscopy, interferometry, and...

There are four major ways in which researchers are hunting for planets. Technically, these are called astrometry, spectroscopy, interferometry, and...

There are four major ways in which researchers are hunting for planets. Technically, these are called astrometry, spectroscopy, interferometry, and...