... Роман Евгеньевич Ильинский email : ilinsky_r@mail.ru . ... Ильинский Р. Е., Ровенская Т. С. Дифференциалы луча в оптической системе // Вестник МГТУ. ... 1998.- ... Roman Ilinsky , Gradient-index meniscus lens free of spherical aberration, Journal of Optics A: Pure and Applied Optics, volume2, number 5, pages 449-451, year 2000 . ... Ильинский Р. Е. Определение реальных габаритов пучков в градиентных оптических системах // Прикладная оптика -2000: Тез. докл. ... 2000.- ... ROMAN ILINSKY . ...
... CEPHEID VARIABLE STARS: A Cepheid variable or Cepheid is a member of a particular class of very luminous, massive variable stars with pulsation periods of 1-70 days. ... The relationship is calibrated using data collected from Cepheids whose distances are determined by other means. ... Browse through the 68 CCD fits images he sent you, using ds9 and locate the Cepheid variable. ... Image credits: ESA - "http://sci.esa.int/science-e-media/img/20/cepheid-variables.jpg" . ...
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Types of Pulsating Variables . Why do Stars Pulsate? ... As with non-pulsating variables, there are several types of pulsating stars and some of the key types are described briefly below. ... Cepheids are very luminous, massive variables with periods of 1 -70 days. ...