Halcyon
Sam, 23, New York & Colorado, forever astounded at just how much there is to see out there. I like lots of things.
apod:
“ 2018 December 22 A Cold December Night
Image Credit & Copyright:  Petr Horálek
Explanation: They say Orion always comes up sideways, and he does seem to on this cold December night. The bright stars of the familiar northern winter...

apod:

2018 December 22

A Cold December Night
Image Credit & Copyright: Petr Horálek

Explanation: They say Orion always comes up sideways, and he does seem to on this cold December night. The bright stars of the familiar northern winter constellation lie just above the snowy tree tops surrounding a cozy cottage near the town of Ustupky in the Czech Republic. But Gemini’s meteors also seem to rain on the wintry landscape. The meteor streaks are captured in exposures made near last Friday’s peak of the annual Geminid meteor shower. They stream away from the shower’s radiant above the trees, near the two bright stars of the zodiacal constellation of the Twins. Comet Wirtanen, a visitor to planet Earth’s skies, is visible too. Look for its telltale greenish coma near the stars of the seven sisters.

∞ Source: apod.nasa.gov/apod/ap181222.html

apod:
“ 2018 December 19 A Rainbow Geminid Meteor
Image Credit & Copyright: Dean Rowe
Explanation: Meteors can be colorful. While the human eye usually cannot discern many colors, cameras often can. Pictured is a Geminid captured by camera during...

apod:

2018 December 19

A Rainbow Geminid Meteor
Image Credit & Copyright: Dean Rowe

Explanation: Meteors can be colorful. While the human eye usually cannot discern many colors, cameras often can. Pictured is a Geminid captured by camera during last week’s meteor shower that was not only impressively bright, but colorful. The radiant grit cast off by asteroid 3200 Phaethon blazed a path across Earth’s atmosphere longer than 60 times the angular diameter of the Moon. Colors in meteors usually originate from ionized elements released as the meteor disintegrates, with blue-green typically originating from magnesium, calcium radiating violet, and nickel glowing green. Red, however, typically originates from energized nitrogen and oxygen in the Earth’s atmosphere. This bright meteoric fireball was gone in a flash – less than a second – but it left a wind-blown ionization trail that remained visible for several minutes, the start of which can be seen here.

∞ Source: apod.nasa.gov/apod/ap181219.html

archatlas:

Architecture Photographed in Fall 

September 22nd marked the start of fall in the Northern Hemisphere. This season of the year is excellent for architectural photography due to the effects of nature, which delights us with wonderful red and orange foliage. To mark the beginning of this season, we have created a selection of 10 works captured in fall by prominent photographers such as Francisco Nogueira, Jorge López Conde, and Steve Montpetit.