Tags » Brown Dwarf

Астрономия, статия на деня: първият спектър на WISE 0855-0714 – кафявото джудже на което можете да карате ски

Според различни оценки температурата на WISE 0855-0714 (https://en.wikipedia.org/wiki/WISE_0855%E2%88%920714) е в границите 225-260 градуса по скалата на Келвин, което съответствува на -48 до -13 градуса по скалата на Целзий. 139 more words


News from The TRAPPIST

Hi, folks. It’s late, and, wow, it’s only Tuesday, but I wanted to mention this really great story, which has been on my mind the last couple of days. 281 more words

Rotation of "Super-Jupiter" Measured For The First Time

Astronomers have measured the rotation rate of a “super-Jupiter” exoplanet four times the mass of Jupiter by observing changes in brightness in its atmosphere.

The observations were done with NASA’s Hubble Space Telescope, and it marks the first ever measurement of rotation by direct imaging for an exoplanet. 415 more words


Elusive Nemesis

One other proposal that has been put forward is that the sun has a companion star, called Nemesis. Nemesis is a hypothetical, faint red/brown dwarf star orbiting the sun at a distance of about 1.5 light years. 167 more words

Earth's Changes

Report of discovery of large object in far outer edges of solar system incites skeptical reactions



December 11, 2015 by Bob Yirka report

ALMA prototype-antennas at the ALMA test facility. Credit: ESO

(Phys.org)—Two separate teams of researchers (one from Mexico, the other Sweden), have incited skepticism among the astronomy community by posting papers on the preprint server arXiv each describing a different large object they observed in the outer edges of the solar system. 215 more words

Earth Watch Report

Most Kepler objects of interest probably not exoplanets after all

From an article on the Sky and Telescope website by Monica Young, originally posted on December 10, 2015.

More than half of the potential giant planets detected by NASA’s Kepler satellite might not be planets after all according to a study by Alexandre Santerne (University of Porto, Portugal, and Aix Marseille University, France). 182 more words


Cool Star Marked by Jupiter-Like Storm

Using NASA’s Spitzer and Kepler space telescopes, a group of astronomers have identified a tiny star with what appears to be a giant, cloudy storm persistently raging – very much similar to Jupiter’s Great Red Spot vortex. 298 more words