Johannes Franz Hartmann
| Use attributes for filter ! | |
| Gender | Male |
|---|---|
| Death | 89 years ago |
| Date of birth | January 11,1865 |
| Zodiac sign | Capricorn |
| Born | Erfurt |
| Germany | |
| Date of died | September 13,1936 |
| Died | Gottingen |
| Germany | |
| Field | Astronomy |
| Discovered | 1029 La Plata |
| 965 Angelica | |
| 1254 Erfordia | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 977453 |
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.
