A Photoelectric Observation of the Asteroid Eros (Abstract)

1938 ◽  
Vol 50 ◽  
pp. 231
Author(s):  
F. E. Roach ◽  
L. G. Stoddard
1953 ◽  
Vol 21 (4) ◽  
pp. 659-664 ◽  
Author(s):  
Royal Marshall ◽  
Norman Davidson

1988 ◽  
Vol 98 ◽  
pp. 183-184
Author(s):  
Ennio Poretti

Variable stars are a field where the contribution of amateur astronomers is of great importance. This contribution can be separated in to complementary parts: 1)collaboration with professional institutes that well-equipped amateurs can easily undertake in the field of photoelectric observation;2)visual observation of variable stars, which in many cases can be a preliminary approach to photoelectric photometry.


1978 ◽  
Vol 2 (2) ◽  
pp. 341-344
Author(s):  
PLANETARYLABORATORY ◽  
PURPLEMOUNTAINOBSERVATORY ◽  
STELLARDIVISIONOFPEKINGOBSERV

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