Search results
Results from the WOW.Com Content Network
It is one of the three stars of the Summer Triangle, along with Vega and Deneb. [6] [7] [8] It is an A-type main-sequence star with 1.8 times the mass of the Sun and 11 times its luminosity. [9] [10] The star rotates quickly, and this gives the star an oblate shape where it is flattened towards the poles. [9] [10] [11]
The Summer Triangle in the context of the night sky, with dimmer stars fading out first and then fading in last. From mid-to-tropical northern latitudes: the centre of the triangle appears about overhead around solar midnight during summer, and exactly so at about the 27th parallel north. This means it rises at sunset in the east and sets at ...
This article documents the most distant astronomical objects discovered and verified so far, and the time periods in which they were so classified. For comparisons with the light travel distance of the astronomical objects listed below, the age of the universe since the Big Bang is currently estimated as 13.787±0.020 Gyr.
The Sun would appear as a white star of apparent magnitude +0.5, [136] roughly the same as the average brightness of Betelgeuse from Earth. It would be at the antipodal point of α Centauri AB's current right ascension and declination , at 02 h 39 m 36 s +60° 50′ 02.308″ (2000), in eastern Cassiopeia , easily outshining all the rest of the ...
The ancient Greeks observed that the appearance of Sirius as the morning star heralded the hot and dry summer and feared that the star caused plants to wilt, men to weaken, and women to become aroused. [30] Owing to its brightness, Sirius would have been seen to twinkle more in the unsettled weather conditions of early summer. To Greek ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The closest encounter to the Sun so far predicted is the low-mass orange dwarf star Gliese 710 / HIP 89825 with roughly 60% the mass of the Sun. [4] It is currently predicted to pass 0.1696 ± 0.0065 ly (10 635 ± 500 au) from the Sun in 1.290 ± 0.04 million years from the present, close enough to significantly disturb the Solar System's Oort ...
They have an angular separation of 309.2 arcseconds (5.2 arcminutes); [17] far enough apart to appear as a close pair of separate stars to the naked eye under suitable viewing conditions. The distance between the two stars is at least 3,750 AU (0.06 light-year, or almost a hundred times the average distance between Pluto and the Sun), so their ...