Catalogued
Hertzsprung-Russell diagram
- Made by
- Hertzsprung; Russell
- Year
- 1911/1913
- Field
- Physics and astronomy
- Kind
- Data display
- Room
- How a group spreads — Placed by reading its description, not yet studied
6 other forms share this skeleton
Source
Russell 1914, Popular Astronomy 22
Attribution checked against the source