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Vor 4 Tagen · A more precise historical approach is found in Astronomia nova and Epitome Astronomiae Copernicanae.
Vor 4 Tagen · Nova, any of a class of exploding stars whose luminosity temporarily increases from several thousand to as much as 100,000 times its normal level. A nova reaches maximum luminosity within hours after its outburst and may shine intensely for several days or occasionally for a few weeks, after which.
- The Editors of Encyclopaedia Britannica
Vor 3 Tagen · JAMES WEBB. Ein überraschend normales Schwarzes Loch im jungen Universum. Schwarze Löcher wuchsen bereits weniger als eine Milliarde Jahre nach dem Urknall in ähnlicher Weise wie heute. Dies zeigen jetzt vorgestellte Beobachtungen mit dem Weltraumteleskop James Webb.
Vor 2 Tagen · Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Explanation: Last April's Full Moon shines through high clouds near the horizon, casting shadows in this garden-at-night skyscape.
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Vor 4 Tagen · Ottavio Brenzoni's letter of 15 January 1605 to Galileo brought the 1572 supernova and the less bright nova of 1601 to Galileo's notice. Galileo observed and discussed Kepler's Supernova in 1604.
Vor 4 Tagen · Astronomy, science that encompasses the study of all extraterrestrial objects and phenomena. Since the late 19th century, astronomy has expanded to include astrophysics, the application of physical and chemical knowledge to an understanding of the nature of celestial objects.
Vor 5 Tagen · Galaxy - Novae, Andromeda, Nebula: An unfortunate misidentification hampered the early recognition of the northern sky’s brightest nearby galaxy, the Andromeda Nebula, also known as M31. In 1885 a bright star, previously invisible, appeared near the centre of M31, becoming almost bright enough to be seen without a telescope.
