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Astronomical Observations & Information, Winter of 2020

Astronomical Observations & Information, Winter of 2020


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 07 January 2020

 

ASTROPHYSICS, COSMIC OBSERVATIONS

Observations & Information, Winter of 2020

Events & Information

 

WHERE WE AT

Earth Closest to the Sun

The Earth at Perihelion,
In-The-Sky, January 6, 2020.

MAIN POINTS

Closest at Mid-Winter
"The Earth's annual orbit around the solar system will carry it to its closest point to the Sun, at a distance of 0.98 AU."

Annual Variation
"The Earth's distance from the Sun varies by around 3% over the course of the year because its orbit is slightly oval-shaped, following a path called an ellipse."

"...a 3% difference in the Earth's distance from the Sun is barely noticeable."

Our Tilted Engine of Weather
"Annual changes in our weather, for example between the summer and winter, are caused entirely by the tilt of the Earth's axis of rotation, rather than by any change in its distance from the Sun."


Trail Guide
Astronomical Models of Earth Orbit & Angle to the Sun

 

 

WINTER SKIES

Orion in Visible and Infrared Light
Orion in Visible and Infrared Light, by Akira Fujii & NASA.
The visible light (left) and infrared (right) images of the constellation Orion shown here are of the exact same area. Images by Akira Fujii & NASA.

 

Rise of Orion & The Winter Circle

Winter Night Skies
Rising in the East with the Fall of Darkness, the Orion Constellation announces the seasonal arrival and now nightly Rise of the Winter Circle.

The Winter Circle
The Winter Circle is defined by the major stars of the major constellations decorating the Winter night Sky, composed of Sirius in Canis Major, Procyon of Canis Minor, the Gemini Twins Pollux and Castor, up to the Goat Herder Capella among the kids in Auriga, over to Aldebaran, the eye of the Bull Taurus, then back down to the Big Dog, Sirius.

 

Orion in Detail
Astronomy Picture of the Day, Orion with Overlay

 

ORION in ACTION TODAY

Betelgeuse is Acting Strange, and Astronomers are Buzzing,
National Geographic, December 26, 2019.

 

STAR CHARTS

Check out the location of the Winter Circle in relation to its constellations,
The Whole Universe Star Chart

The Star Wheel times and tracks the Winter Circle from your location,
Digital Star Wheel

 

Trail Guide
Navigation Page, Observation Tools

 

STARS

What Stars Do, besides being Pretty...
Star Operations, Supernova Explosions, & Neutron Star Collisions: How Elements are Created

 

 

 

ASTROPHYSICS, SKY, & SPACE

News of Man & Nature, January 2020

 

 

 

TOP

 

 

 

More
Nature News

 

Climate Destruction News

 

Trees

Bee News

Bear News

Spider Forum

Bird News

Small Mammals

Frogs and Reptiles

Butterfly News

 

Health and Fitness

Mountain Safety

Mosquito News

Female Trail

High Sierra History

 

Astro-Phys, Space, & Science News

High Sierra Geology News

Fish, Oceans, & Water News

Anthropocene

 

 

TOP

 

observational, astronomy, for, High Sierra, backpackers, outdoorsmen, Winter 2020, star chart, sky wheel, references, charts, Orion, Winter Circle, Winter stars, Earth, at, Perihelion

 

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