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The Dark Horse Nebula or Great Dark Horse (sometimes called the Prancing Horse) is a large dark nebula that, from Earth's perspective, obscures part of the upper central bulge of the Milky Way. The Dark Horse lies in the equatorial constellation Ophiuchus (the Serpent Bearer), near its borders with the more famous constellations Scorpius and ...
Gravitational interactions between stars in a stellar system can result in large accelerations of one or more of the involved stars. In some cases, stars may even be ejected. [ 20 ] This can occur in seemingly stable star systems of only three stars, as described in studies of the three-body problem in gravitational theory.
Smaller stars generate energy more slowly, so this component radiates only 6% [3] of the luminosity of the Sun. Its outer atmosphere has an effective temperature of 4,036 K. [ 3 ] Compared to the Sun, both components show only half the abundance of elements other than hydrogen and helium —what astronomers term their metallicity .
List of most distant individually seen stars Star Redshift Distance Discovery Notes WHL0137-LS (Earendel) 6.2 ± 0.1 [1] 8,600 2022 The most distant known star as of 2023. MACS J0647.7+7015 LS1 4.8 [2] 7,830 2023 MACS J0647.7+7015 LS2 Abell 2744 LS1 2.65 [3] 6,110 2022 Godzilla: 2.38 [4] 5,780 2022 The most luminous known star. Quyllur: 2.1878 ...
Pegasus is a constellation in the northern sky, named after the winged horse Pegasus in Greek mythology.It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and is one of the 88 constellations recognised today.
The amount of shift is quite small, even for the nearest stars, measuring 1 arcsecond for an object at 1 parsec's distance (3.26 light-years), and thereafter decreasing in angular amount as the distance increases.
The notion of a “Rock Star” was first mentioned in 1960 — before that and for a while after as well, the biggest musicians of this new, fast evolving musical genre were simply pop stars.
Distance measures are used in physical cosmology to give a natural notion of the distance between two objects or events in the universe.They are often used to tie some observable quantity (such as the luminosity of a distant quasar, the redshift of a distant galaxy, or the angular size of the acoustic peaks in the cosmic microwave background (CMB) power spectrum) to another quantity that is ...