Reference : Photoelectric lightcurves and rotation period of the minor planet 201 Penelope
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/19143
Photoelectric lightcurves and rotation period of the minor planet 201 Penelope
English
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Louis, B. [Liege, Universite, Cointe-Ougree, Belgium]
Cramer, N. [Geneve, Observatoire, Sauverny, Switzerland]
Rufener, F. [Geneve, Observatoire, Sauverny, Switzerland]
Waelkens, C. [Geneve, Observatoire, Sauverny, Switzerland]
Barbier, R. [European Southern Observatory, Santiago, Chile]
Birch, P. V. [Perth Observatory, Bickley, Australia]
Nov-1983
Astronomy and Astrophysics. Supplement Series
EDP Sciences
54
371-378
Yes (verified by ORBi)
International
0365-0138
Les Ulis
France
[en] ASTRONOMICAL PHOTOMETRY ; ELECTROPHOTOMETRY ; LIGHT CURVE ; PLANETARY ROTATION ; COLOR ; MAGNITUDE ; PERIODIC VARIATIONS ; TIME MEASUREMENT ; UBV SPECTRA ; ASTEROIDS
[en] Results of photoelectric observations of the asteroid 201 Penelope carried out at the European Southern Observatory and Perth Observatory during the 1980 opposition of the asteroid between October 6 and November 7 are presented. Observations were made in the standard UBV and Geneva systems at ESO, and in V-prime at Perth. Examination of composite light curves shows the presence of two distinct maxima and two distinct minima, with a total amplitude of the V light curve of 0.52 magnitudes. A mean synodic rotation period of 3 h, 44 min, 51.6 + or - 7.4 sec is derived. Using a mean phase coefficient beta[SUB]V[/SUB] = 0.037 mag/deg, a primary V (1,0) maximum of 8.51 + or - 0.01 magnitudes is obtained. Color indices are measured as B-V = 0.70 + or - 0.01 and U-B = 0.23 + or - 0.02 magnitudes, and previously reported color variations (Surdej and Cramer, 1980) are attributed to a failure in the reduction procedure.
Researchers ; Professionals
http://hdl.handle.net/2268/19143
http://esoads.eso.org/abs/1983A%26AS...54..371S
The authors thank EDP Sciences for their deposit authorization

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