Epsilon Aurigae - Wikipedia
It is an unusual eclipsing binary system comprising an F0 supergiant (officially named Almaaz / ælˈmɑːz /, the traditional name for the system) and a companion which is generally accepted to be a huge dark disk orbiting an unknown object, possibly a binary system of two small B-type stars.
Almaaz (Epsilon Aurigae): Star System, Name, Location - Star Facts
2023年2月4日 · Almaaz, Epsilon Aurigae (ε Aur), is a yellow-white supergiant star located in the constellation Auriga. With an apparent magnitude that varies from 2.92 to 3.83, it is on average the fifth brightest star in Auriga. It marks the left elbow of the celestial Charioteer.
Solving the 200-Year-Old Mystery of a Strange Eclipsing Star
2018年6月18日 · Every 27 years, Epsilon Aurigae dims for a two-year period. Scientists have speculated about what caused the eclipse: a cloud of meteors, a black hole, another star or a disk of material .
A mysterious star called Epsilon Aurigae | Sky Archive - EarthSky
2019年3月5日 · One of the most puzzling stars in all the heavens is Epsilon Aurigae. It’s an eclipsing binary star, but doesn’t behave exactly as one would expect. The strange brightening and dimming of its...
Epsilon Aurigae: Astronomy's longest-running mystery show
2016年10月31日 · Epsilon Aurigae, the large white star in this artist’s conception, dims every 27 years as seem from Earth. In a leading interpretation of the scientific evidence, an eclipse of Epsilon by a...
Epsilon Aurigae | Binary Star, Eclipsing Binary & Fading | Britannica
Epsilon Aurigae, binary star system of about third magnitude having one of the longest orbital periods (27 years) among eclipsing binaries (see eclipsing variable star). It is located an estimated 2,000 light-years from Earth in the constellation Auriga. The primary star is a yellow-white star about 135 times the size of the Sun. The secondary ...
Epsilon Aurigae | aavso
The end of the year is the prime observing season for one of the most enigmatic bright variables in our sky -- the mysterious eclipsing binary epsilon Aurigae. Now is an exciting time to familiarize yourself with this fascinating star, as we countdown to a rare eclipse starting in mid-2009.
Weird Object: Epsilon Aurigae | Astronomy.com
2015年6月19日 · Scientists have now solved the centuries-long mystery about the entity that eclipses the colossal star Epsilon (ε) Aurigae: It’s a giant gravel disk. Variable stars are a lot like macaroni...
Infrared images of the transiting disk in the ε Aurigae system
2010年4月8日 · Epsilon Aurigae (ε Aur) is a visually bright, eclipsing binary star system with a period of 27.1 years. The cause of each 18-month-long eclipse has been a subject of controversy for nearly 190...
Epsilon Aurigae - Hampshire Astronomical Group - Clanfield …
Epsilon Aurigae is a pulsating Supergiant F0 class variable star of magnitude +3 (varying by magnitude ~0.2) that is eclipsed once every 27.1 years. The eclipse lasts for between 640 and 721 days, and during the eclipse the brightness of the star will dim by 48%.