Risultati di ricerca
4 giorni fa · Several of the stellar class of white dwarf stars, which have low luminosities and high densities, also are among the brightest stars. Sirius B is a prime example, having a radius one-thousandth that of the Sun, which is comparable to the size of Earth.
4 giorni fa · Credit: NASA. To find the universe’s oldest stars, you must look for the ones with low chemical abundances and a retrograde orbit. That’s what a group of students in a class of MIT professor ...
2 giorni fa · June 4 morning: Moon moving toward Jupiter and Mercury. On June 4, 2024, the waning crescent moon will be floating above the planets low on the horizon. Mercury and Jupiter will appear closest ...
2 giorni fa · ^ A very few low / no metallicity stars ( populations II and III) between 140–250 M☉ end their lives by a type II-P supernova explosion, which is powerful enough to blow (almost) all matter away from the vicinity of the star, so that not enough material remains to create either a black hole, or a neutron star, or a white dwarf ...
3 giorni fa · Planet Glows With Molten Lava. Hunting the First Stars. Iconic Horsehead Nebula. Unexpected Differences in Binary Stars: Origin. Summaries. Headlines. Researchers Advance Detection of...
4 giorni fa · An online sky map to identify constellations and major stars and planets easy to see with the naked eye.
22 ore fa · They are likely to have accreted and assimilated about 100–200 low-mass galaxies during the past 12 billion years. [97] The stars in the extended halos of the Andromeda Galaxy and the Milky Way may extend nearly one-third the distance separating the two galaxies.
