Frosty Leo Nebula - Observation History

Observation History

This PPN was first noticed in the IRAS survey due to its exceptionally cold IRAS color temperatures. It also has a uniquely sharp maximum at 60-μM.

Read more about this topic:  Frosty Leo Nebula

Famous quotes containing the words observation and/or history:

    That observation which is called knowledge of the world will be found much more frequently to make men cunning than good.
    Samuel Johnson (1709–1784)

    I believe that history might be, and ought to be, taught in a new fashion so as to make the meaning of it as a process of evolution intelligible to the young.
    Thomas Henry Huxley (1825–95)