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Light curves of asteroid 51 NEMAUSA during its 1989 apparition
Light curves of 51 Nemausa were obtained during 5 nights in 1989. It isfound that the shape of the light curves of the asteroid is stronglydependent on the phase angle. The maximum amplitude increases from 0.11to 13 m as the phase angle increases from 5.4 to 26.5 deg. The meanvalue of the phase coefficient is 0.045 magnitude/deg.
| Photoelectric observations of lunar occultations. XV
The last (or possibly penultimate) paper in a series on lunaroccultations presents observations of 404 phenomena, preceded by somegeneral remarks of a retrospective nature. The series of observationsbegan in 1968. Data for 20 doubles or suspected doubles are presented,ranked in order of certainty, with designation 3 representing thesurest. Thirteen of the cases refer to stars not previously noted asdoubles. Seven determinations of angular diameters are presented, ofwhich three have been previously observed.
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sonraki gruplarýn üyesi:
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Aslan |
| Sað Açýklýk: | 11h35m20.64s |
| Yükselim: | +07°53'10.0" |
| Görünürdeki Parlaklýk: | 9.437 |
| özdevim Sað Açýklýk: | -58.1 |
| özdevim Yükselim: | -13.2 |
| B-T magnitude: | 10.271 |
| V-T magnitude: | 9.506 |
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