Acta Astronomica ist eine polnische Fachzeitschrift für Astronomie in englischer Sprache, die 1925 vom Astronom und Mathematiker Tadeusz Banachiewicz gegründet wurde. Sie erscheint alle 3 Monate als Fachzeitschrift der polnischen astronomischen Kopernikus-Stiftung.
Wikimedia Foundation.
Cepheid variable — This article is about a class of pulsating stars. For the similarly named constellation, see Cepheus (constellation). Cepheids redirects here. For the fictional species, see Blind Alley . A Cepheid ( /ˈs … Wikipedia
Type II Cepheid — Type II Cepheids are variable stars which pulsate with periods typically between 1 and 50 days.[1][2] Type II Cepheids are population II stars and are thus old, typically metal poor, low mass objects.[1] Type II Cepheids were historically called… … Wikipedia
Classical Cepheid variable — Classical Cepheids (also known as Population I Cepheids, Type I Cepheids, or Delta Cephei variables) are a type of Cepheid variable star. They are population I, variable stars that exhibit pulsation periods in the order of a few days to months,… … Wikipedia
Cosmic distance ladder — * Light green boxes: Technique applicable to star forming galaxies. * Light blue boxes: Technique applicable to Population II galaxies. * Light Purple boxes: Geometric distance technique. * Light Red box: The planetary nebula luminosity function… … Wikipedia
Комета Галлея — 1P/Галлея Комета Галлея 8 марта 1986 года Открытие Первооткрыватель: Наблюдалась в глубо … Википедия
Centaurus A — (NGC 5128) Observation data (J2000 epoch) Constellation Centaurus … Wikipedia
Enkyō (Edo period) — nihongo| Enkyō |延享 was a nihongo| Japanese era name|年号,| nengō ,|lit. year name after Kanpō and before Kan en. This period spanned the years from 1744 through 1748. The reigning emperors were nihongo|Sakuramachi tennō |桜町天皇 and nihongo|Momozono… … Wikipedia
Kanpō — nihongo| Kanpō |寛保 was a nihongo| Japanese era name|年号,| nengō ,|lit. year name after Genbun and before Enkyō. This period spanned the years from 1741 through 1744. The reigning emperor was nihongo|Sakuramachi tennō |桜町天皇. [Titsingh, Isaac.… … Wikipedia
Banachiewicz — Tadeusz Banachiewicz Tadeusz Banachiewicz (* 13. Februar 1882 in Warschau; † 17. November 1954 in Krakau) war ein polnischer Astronom, Mathematiker und Geodät … Deutsch Wikipedia
Астрономическая обсерватория Ягеллонского университета — Оригинал названия Obserwatorium Astronomiczne Uniwersytetu Jagiellonskiego Тип астрономическая обсерватория Код 055 (наблюдения) Расположение … Википедия
