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Enormous Lyα nebula (ELAN) Around the quasar UM287 at around z=2.3. Cosmic filament illuminated by the quasar. MAMMOTH-1: 1,441,000 ly (442,000 pc) [5] Enormous Lyα nebula (ELAN) The nebula is associated with the galaxy overdensity BOSS1441, [5] which is a protocluster at z=2.3. The nebula represents the circumgalactic medium. Its emission is ...
Among other uses, lavacasts can be built to block the way for new players from spawn (upper left) to the rest of the map (lower right). Also visible at lower right is an incomplete lava cast (currently covered in lava). An aerial render of the spawn region in July 2019, centered on the middle of the map with a diameter of just over 4,000 blocks.
The taxonomy of the Cyanea species is not fully agreed upon; some zoologists have suggested that all species within the genus should be treated as one. Two distinct taxa, however, occur together in at least the eastern North Atlantic, with the blue jellyfish (Cyanea lamarckii Péron & Lesueur, 1810) differing in color (blue, not red) and smaller size (10–20 cm [3 + 7 ⁄ 8 – 7 + 7 ⁄ 8 ...
WFPC2/HST image showing the asymmetric nebula surrounding VY CMa, which is the central star VY Canis Majoris is surrounded by an extensive and dense asymmetric red reflection nebula , with a total ejected mass of 0.2–0.4 M ☉ and a temperature of 800 kelvin , based on a DUSTY model atmosphere that has been formed by material expelled from ...
Photoevaporation is the process where energetic radiation ionises gas and causes it to disperse away from the ionising source. The term is typically used in an astrophysical context where ultraviolet radiation from hot stars acts on clouds of material such as molecular clouds, protoplanetary disks, or planetary atmospheres.
This is a list of exoplanets within the circumstellar habitable zone that are either under 10 Earth masses or smaller than 2.5 Earth radii, and thus have a chance of being rocky. [ 3 ] [ 1 ] Note that inclusion on this list does not guarantee habitability, and in particular the larger planets are more unlikely to have a rocky composition. [ 4 ]
seen from Earth measuring about 0.002 lux −6.00: Crab Supernova of 1054: seen from Earth (6500 light-years away) [40] −5.90: International Space Station: seen from Earth when the ISS is at its perigee and fully lit by the Sun [41] −4.92: planet Venus: seen from Earth maximum brightness [42] when illuminated as a crescent −4.14: planet ...
Map showing the Orion OB1 association, which contains the blue supergiants of Orion's Belt and the Orion Nebula. Betelgeuse is believed to be a runaway star that was ejected from the Orion OB1 association. The kinematics of Betelgeuse are complex. The age of Class M supergiants with an initial mass of 20 M ☉ is roughly 10 million years.