Relative gradients for 166 southern stars were detennined by photographic spectrophotometry with a slitless spectrograph attached to the 30-inch Reynolds reflector. The system is believed to be uniform with that of Greenwich. The relations between the Mount Stromlo gradients and the colours of other observers are examined, and the colours of a group of very blue B stars discussed with regard to their bearing on the spectrum-colour relation and on the stellar temperature scale.
- 1 - natural sciences ; 2 - physics & astronomy ; 3 - astronomy & astrophysics
- 1 - sciences appliquees, technologies et medecines ; 2 - sciences exactes et technologie ; 3 - terre, ocean, espace ; 4 - astronomie
- 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Space and Planetary Science
- 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Astronomy and Astrophysics