Johannes Franz Hartmann photograph

Johannes Franz Hartmann

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Gender Male
Death88 years ago
Date of birth January 11,1865
Zodiac sign Capricorn
Born Erfurt
Germany
Date of died September 13,1936
DiedGottingen
Germany
Field Astronomy
Discovered1029 La Plata
965 Angelica
1254 Erfordia
Date of Reg.
Date of Upd.
ID977453
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Johannes Franz Hartmann Life story


Johannes Franz Hartmann was a German physicist and astronomer. In 1904, while studying the spectroscopy of Delta Orionis he noticed that most of the spectrum had a shift, except the calcium lines, which he interpreted as indicating the presence of interstellar medium.

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