منابع مشابه
Night sky at the Indian Astronomical Observatory during 2000 − 2008
This paper presents an analysis of the optical night sky brightness and extinction coefficient measurements in UBVRI at the Indian Astronomical Observatory (IAO), Hanle, during the period 2003−2008. They are obtained from an analysis of CCD images acquired at the 2 m Himalayan Chandra Telescope (HCT) at IAO. Night sky brightness was estimated using 210 HFOSC images obtained on 47 nights and cov...
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Astronomical & Astrophysical Transactions The Journal of the Eurasian Astronomical Society Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713453505 Flux density evolution of the sources 3C273, 3C279 and 3C454.3 at the frequencies 102 MHz-36.8 GHz A. E. Volvach a; L. N. Volvach a; M. G. Larionov b; H. D. Aller...
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ژورنال
عنوان ژورنال: Nature
سال: 1919
ISSN: 0028-0836,1476-4687
DOI: 10.1038/103166a0