Donald Howard Menzel
Videos
Donald Howard Menzel was one of the first theoretical astronomers and astrophysicists in the United States. He discovered the physical properties of the solar chromosphere, the chemistry of stars, the
Donald Howard Menzel Portrait
Planetary nebula PK 329-02.2, also known as Menzel 2, or Mz 2. It was discovered in 1922.
Menzel's cover art, Galaxy Science Fiction, 10/1969
Solar eclipse of April 2024 from Indianapolis
Chromosphere
Videos
A chromosphere is the second layer of a star's atmosphere, located above the photosphere and below the solar transition region and corona. The term usually refers to the Sun's chromosphere, but not ex
Donald Howard Menzel
…14, 1976) was one of the first theoretical astronomers and astrophysicists in the United States. He discovered the physical properties of the solar chromosphere, the chemistry of stars, the atmosphere of Mars, and the nature of gaseous nebulae. Born in Florence, Colorado in 1901 and raised in Leadville, he…
The red color of the chromosphere could be seen during the solar eclipse of August 11, 1999.