| Behaviours that observationally look very similar have different meanings for different children. |
| It is all the way between ± one sigma of the asymmetric red circles wing, observationally undiscernible. |
| This result confirms observationally for the first time previous theoretical results, by a team of Geneva, about the effect of metallicity on stellar rotation. |
| Any two consecutive cards will be observationally indistinguishable in color. |
| The majority of the research is observationally based and there is emphasis on the utilization of radars, satellites, research aircraft. |
| Of this group, the Cepheid variables have been studied in greatest detail, both theoretically and observationally. |
