"When beggars die, there are no comets seen;
The heavens themselves blaze forth the death of princes."

— William Shakespeare
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Updated: 5 hours 52 min ago

This Week’s Sky at a Glance, January 18 – 26

Fri, 01/18/2019 - 5:35am

  Friday, January 18 • Zero-magnitude Capella on high, and equally bright Rigel in Orion's foot, have almost the same right ascension. This means they cross your sky’s meridian at almost exactly the same time: around 9 or 10 p.m. now, depending on how far east or west you live in your time zone. So, whenever Capella passes its very highest, Rigel always marks true south over your landscape, and […]

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Categories: Astronomy

IC1805 SHO

Thu, 01/17/2019 - 9:02am

The post IC1805 SHO appeared first on Sky & Telescope.

Categories: Astronomy

A blue ring in the eye of the scorpion.

Thu, 01/17/2019 - 9:02am
Categories: Astronomy

Sh2-155 The Cave Nebula in Cepheus

Thu, 01/17/2019 - 9:02am
Categories: Astronomy

We Don’t Really Know When the Sun Rises

Thu, 01/17/2019 - 7:10am

Hundreds of sunrise and sunset times reveal that there’s something amiss with our calculations.

The post We Don’t Really Know When the Sun Rises appeared first on Sky & Telescope.

Categories: Astronomy

Scientists Question Popular Planet Formation Theory

Wed, 01/16/2019 - 1:42pm

New studies are challenging the core accretion theory, the primary model astronomers use to understand how worlds form in our solar system and beyond.

The post Scientists Question Popular Planet Formation Theory appeared first on Sky & Telescope.

Categories: Astronomy

All You Need to Know for Sunday’s Total Lunar Eclipse

Wed, 01/16/2019 - 10:58am

The total lunar eclipse of January 2019 promises to be a spectacle for those under clear skies in the zones of totality.

The post All You Need to Know for Sunday’s Total Lunar Eclipse appeared first on Sky & Telescope.

Categories: Astronomy

Astronomers Discover Most Distant Lensed Quasar

Wed, 01/16/2019 - 10:50am

The most distant magnified quasar known promises to shed light on the universe's early years.

The post Astronomers Discover Most Distant Lensed Quasar appeared first on Sky & Telescope.

Categories: Astronomy

Comets to Catch in 2019

Wed, 01/16/2019 - 10:06am

We peek ahead to see what comets await in 2019. Bright ones will be sparse, but several nice objects, including Comet Iwamoto (C/2018 Y1) and Comet Africano (C/2018 W2), will keep things lively.

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Categories: Astronomy

How “Light Echoes” Revealed a Black Hole’s Feeding Habits

Tue, 01/15/2019 - 9:27pm

Astronomers are taking a cue from bats, using a method similar to echolocation to map out the feeding environment around a black hole.

The post How “Light Echoes” Revealed a Black Hole’s Feeding Habits appeared first on Sky & Telescope.

Categories: Astronomy

Rosette Nebula on Monoceros

Tue, 01/15/2019 - 3:05pm

The post Rosette Nebula on Monoceros appeared first on Sky & Telescope.

Categories: Astronomy

A Guided Tour of January’s Total Lunar Eclipse

Tue, 01/15/2019 - 2:29pm

A special edition of our Sky Tour astronomy podcast provides you with a guided tour of the key events that will occur during this coming weekend's total lunar eclipse.

The post A Guided Tour of January’s Total Lunar Eclipse appeared first on Sky & Telescope.

Categories: Astronomy

Astrophotography: Bits, Bytes & Dynamic Range

Mon, 01/14/2019 - 5:06pm

Wider is better for astrophotography — understand the basics of bit depth and dynamic range for better astrophotos. Before you can have a proper understanding of what it means to stretch your image, you need to be sure you understand what your image is made of: numbers. That’s it . . . lots and lots of numbers. Every pixel has a number that corresponds to how bright the pixel should […]

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Categories: Astronomy

MallinCam’s Live View Camera

Mon, 01/14/2019 - 10:00am

MallinCam unveils its newest addition to the SkyRaider Video Camera series, the SkyRaider DS10c ($929.99).

The post MallinCam’s Live View Camera appeared first on Sky & Telescope.

Categories: Astronomy

Comet C/2018 N2 (ASASSN) 12/30/2018 Gif

Mon, 01/14/2019 - 5:49am
Categories: Astronomy

60-second Astro News: White Dwarfs & Hot Jupiters

Fri, 01/11/2019 - 9:51pm

This week in astronomy news: Space telescopes show us that white dwarfs are crystallizing in their cores and cloudy night skies are universal among hot Jupiters.

The post 60-second Astro News: White Dwarfs & Hot Jupiters appeared first on Sky & Telescope.

Categories: Astronomy

Celestial Event Dubbed “The Cow” Puzzles Astronomers

Fri, 01/11/2019 - 1:54pm

Astronomers can't agree on what kind of strange stellar death created a brilliant source dubbed "the Cow."

The post Celestial Event Dubbed “The Cow” Puzzles Astronomers appeared first on Sky & Telescope.

Categories: Astronomy

Comet 64P/Swift-Gehrels (Jan.5,2019)

Fri, 01/11/2019 - 9:34am
Categories: Astronomy