Monday, December 23, 2019

Dec 23 - Betelgeuse is 'Fainting'

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The red star Betelgeuse imaged in ultraviolet light by the Hubble Space Telescope. Image via NASA/ ESA.

Betelgeuse is 'fainting' but (probably) not about to explode

The well-known bright star Betelgeuse - a red supergiant star, famous for its name and for the fact that it'll explode someday - has become noticeably dimmer since late October. Here's what astronomers think is happening. Read more

Astronomers find 'missing' neutron star after 32 years

Thirty-two years ago, Supernova 1987A erupted in the nearby Large Magellanic Cloud. Astronomers using the ALMA radio telescope now say they've found the small, compact neutron star created in this mighty star explosion. Read more.

November 2019 was 2nd hottest on record for planet

Last month was the 2nd warmest  November in the 140-year global climate record, and polar sea ice coverage shrank to near-record lows, according to a NOAA report. Read more.

Next new moon is December 26

Unless they cause a solar eclipse, new moons generally can't be seen. The next new moon happens on December 26 at 05:13 UTC. It will cause an annular or ring eclipse, visible from Earth's Eastern Hemisphere. Read more.
Thank you all for shopping at The EarthSky Store!

The last day to order products for guaranteed Christmas delivery has passed. Click here to shop now and receive items shortly after the holidays. Your support means the world to us and helps us keep going! 

How can I see the Southern Cross now?

In late December and early January, those at the latitude of Hawaii - or further south - can see the Southern Cross before sunrise.

Sun's path: June solstice to December solstice 

View at EarthSky Community Photos. | Olivér Nagy in Budapest wrote on December 21: "It is solstice time! This is my current solargraphy image taken from summer solstice to winter solstice. The bright lines are the days of the year written by the sun on the sky. The upper lines are created at summer, and the lower ones at winter. The gaps in the lines means that there were cloudy periods at that time of the year. I used a plastic drain tube with 11-cm [about 4.5 inches] diameter and 23-cm [about 9 inches] height. Happy solstice to everyone!" Here's how to create a solargraph like this one. Thank you, Olivér!  View more seasonal images from the EarthSky Community, or submit your own.
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