Abstract
A PHOTOGRAPHIC patrol of selected quasi-stellar objects (QSOs) has been in progress with the Yale 40 inch reflector since the autumn of 1966. On the average, about seven plates have been obtained of most QSOs, but additional plates have been taken of certain objects. Sandage1 first reported optical variations in 3C454.3. Subsequently, Angione2 published a light curve of this object, based on existing Harvard patrol plates taken over an interval of 60 yr. Over a period of 2 yr, seventeen Yale plates were obtained of 3C454.3. In addition, three plates were taken for us at the US Naval Observatory by W. Osborn.
Similar content being viewed by others
References
Sandage, A. R., Astrophys. J., 144, 1234 (1966).
Angione, R. J., Publ. Astro. Soc. Pacific, 80, 339 (1968).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
LÜ, P., HUNTER, J. Optical Variations of 3C454.3. Nature 221, 755–757 (1969). https://doi.org/10.1038/221755b0
Received:
Issue Date:
DOI: https://doi.org/10.1038/221755b0
- Springer Nature Limited
This article is cited by
-
О природе квазаров и активных ядер галактик
Astrophysics and Space Science (1977)
-
Rapidly rotating supermassive stars in the first post-Newtonian approximation to general relativity
Astrophysics and Space Science (1971)
-
Yearly Variations of 3C 120
Nature (1970)
-
Optical Variations in Quasars
Nature (1969)
-
Optical Variations in Quasi-stellar Objects
Nature (1969)