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Helligkeitsschätzungen von 12 quasistellaren Objekten auf photographischen Himmelsaufnahmen
Author(s) -
Jackisch G.
Publication year - 1970
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.19702920513
Subject(s) - physics , astrophysics
Abstract Twelve QSO's have been investigated for variability on plates of the “Sonneberger Himmelsüberwachung”. Besides for 3 C 273 and Ton 616 no variability exceeding the mean error (±0.08 mag for m < 17.0) was found. T ON 616 shows variability of 0,4 mag on time scales from hours (1964 Apr. 15) to one year.