Ernst Hartwig
Obituary
### Obituary

* [AN **219** (1923\) 185/186](http://adsabs.harvard.edu//full/seri/AN.../0219//0000101.000.html) 

[Category:1851 births](/wiki/Category:1851_births "1851 births")
[Category:1923 deaths](/wiki/Category:1923_deaths "1923 deaths")
[Category:19th\-century German astronomers](/wiki/Category:19th-century_German_astronomers "19th-century German astronomers")
[Category:Discoverers of comets](/wiki/Category:Discoverers_of_comets "Discoverers of comets")
[Category:Discoverers of supernovae](/wiki/Category:Discoverers_of_supernovae "Discoverers of supernovae")
[Category:20th\-century German astronomers](/wiki/Category:20th-century_German_astronomers "20th-century German astronomers")


Can you provide a brief summary of [AN]'s life and achievements?