Quantcast

Latest Proxima Centauri Stories

NASA Releases Interface Region Imaging Spectrograph Footage Of X-class Flare
2014-09-18 03:30:06

Karen Fox, NASA On Sept. 10, 2014, NASA's newest solar observatory, the Interface Region Imaging Spectrograph, or IRIS, mission joined other telescopes to witness an X-class flare – an example of one of the strongest solar flares -- on the sun. Combing observations from more than one telescope helps create a much more complete picture of such events on our closest star. Watch the movie to see how the flare appears different through the eyes of IRIS than it does through NASA's Solar...

Nearby Flare Star Gives Burst Of Light
2013-06-14 12:17:36

Brett Smith for redOrbit.com - Your Universe Online Within a span of three minutes, a star in the Usra Major constellation less than 16 light-years from Earth gave off a massive flare, making the object 15 times brighter than normal, according to a new report in the journal Astrophysics. The star, known as WX“¯UMa, is a so-called flare star, a class of stars which can become 100 times or more brighter within a few seconds or minutes. These flares appear to be randomly...

Stellar Alignment Allows Opportunity To Find Planets Near Proxima Centauri
2013-06-04 08:55:53

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Besides our own Sun, the red dwarf star Proxima Centauri is the nearest star to Earth. As such, astronomers have sought to determine if planets orbit the tiny object. But because of its low brightness, and other issues, previous attempts to find planets using traditional methods have failed. But researchers have now determined that two unique opportunities -- one in October 2014, another in February 2016 -- will allow...

Closest Star System In A Century Found 6.5 Light Years Away
2013-03-11 16:28:34

Brett Smith for redOrbit.com - Your Universe Online Using data obtained from a NASA satellite, a Pennsylvania State University astronomer has identified the closest solar system to be found within the past 97 years. According to astronomer Kevin Luhman´s report in the Astrophysical Journal Letters, the newly identified system is a pair of brown dwarf stars and the third-closest system to the Sun. “The distance to this brown dwarf pair is 6.5 light years -- so close that...

How Do Wide Binary Stars Form
2012-12-05 13:48:14

Lee Rannals for redOrbit.com - Your Universe Online Scientists have reported in the journal Nature that they have figured out by using computer simulations how wide binary stars are able to form. Wide binary stars are two stars that orbit each other at a distance up to a light year. Some binary stars can be very close, while other pairs are extremely far apart. Astronomers have known about wide binary pairs for a long time, but how they form has remained a mystery. Now, astronomers...

Closest-Ever Exoplanet Discovered In The Alpha Centauri Star System
2012-10-17 14:08:24

Video 1 | Video 2 Lawrence LeBlond for redOrbit.com - Your Universe Online Astronomers have discovered a planet similar in mass to the Earth orbiting a star in the Alpha Centauri system – the nearest to Earth. Surpisingly, according to the astronomers, this planet which is just 4 light years away is also the lightest ever discovered around a star like our Sun. While the planet itself may be more similar in size and mass than Venus is to Earth, that´s where the good news...

Solar Corona Captured In Highest Resolution Ever
2012-07-21 05:29:44

[ Video 1 ] | [ Video 2 ] redOrbit Staff & Wire Reports - Your Universe Online A telescope launched on board a NASA sounding rocket earlier this month has captured the highest-resolution images of the sun's corona, the US space agency announced on Friday. The 16-megapixel images of the million-degree atmosphere of the sun were captured in an extreme-ultraviolet wavelength of light by the High Resolution Coronal Images (Hi-C) telescope, according to the Harvard-Smithsonian Center...

2012-07-09 10:55:42

A team of scientists has created an "MRI" of the Sun's interior plasma motions, shedding light on how it transfers heat from its deep interior to its surface. The result, which appears in the journal the Proceedings of the National Academy of Sciences, upends our understanding of how heat is transported outwards by the Sun and challenges existing explanations of the formation of sunspots and magnetic field generation. The work was conducted by researchers from NYU's Courant Institute of...


Latest Proxima Centauri Reference Libraries

10_229495c009fca33ec67cb53f830d8a202
2004-10-19 04:45:44

Centaurus Constellation -- Centaurus (the centaur) was one of the 48 constellations listed by Ptolemy, and counts also among the 88 modern constellations. A constellation of the southern hemisphere, mentioned by Eudoxus (4th century B.C.) and Aratus (3rd century B.C.), Ptolemy catalogued thirty-seven stars in it. It contains Proxima Centauri, the red dwarf that is the nearest known star (other than the Sun) to Earth, as well as Alpha Centauri, which is a double star to which Proxima...

6_9182d2d493640e91b36f6c6769af79e62
2004-10-19 04:45:42

Red Dwarf -- A red dwarf is a small star on the main sequence, either late K or M spectral type. They have a diameter and mass of less than one-third that of the Sun (down to 0.08 solar masses, which are Brown dwarves) and a surface temperature of less than 3,500 K. They emit little light, sometimes as little as 1/10,000th that of the sun. Due to the slow rate at which they burn hydrogen red dwarves have a enormous lifespan, estimates range from a tens of billions up to trillions of...

3_430c9969154cd2928ecbcfb45cf0d8dd2
2004-10-19 04:45:40

Proxima Centauri -- The red dwarf star Proxima Centauri (also Alpha Centauri C), part of the Alpha Centauri star system, is the nearest star to our Earth other than the Sun. Proxima Centauri is roughly 4.22 light years from Earth, 270,000 times as far as the sun. Its apparent magnitude is 11 (very weak, as red dwarfs in general are: far too weak to be observable with the naked eye). Proxima Centauri has often been suggested as a logical first destination for interstellar travel....

3_aaa6f0d4aeab03d9ae4d6b2e552621d02
2004-10-19 04:45:40

Brown Dwarf -- Brown dwarfs are a special type of low-mass star (approximately 13-70 Jupiter masses) that do not have nuclear fusion occurring in their cores during their time on the main sequence. Early in their development most brown dwarf stars do have lithium fusion in their cores, and a lack of lithium is a test for low-mass objects that are suspected of being brown dwarfs. Many brown dwarfs continue to glow in the red and infrared after their lithium is exhausted. This glow is...

3_9b544732a3ec053113238c19e714a11b2
2004-10-19 04:45:40

Alpha Centauri -- Alpha Centauri is the brightest star system in the southern constellation of Centaurus, and is the third brightest in the entire night sky (although too far south to be visible in most of the northern hemisphere). It is also the closest star system to Earth. It bears the proper name Rigil Kentaurus (often shortened to Rigil Kent), meaning "foot of the centaur" in Arabic, but is nonetheless usually referred to by its Bayer designation Alpha Centauri. Alpha Centauri is...

More Articles (5 articles) »
Word of the Day
ramage
  • Boughs or branches.
  • Warbling of birds in trees.
Related