NOW ONLINE

Everything you need to know about the 2017 total solar eclipse

ASY160801

Login or Register |

Customer Service

Tonight's Sky

Sun

RISE—

SET—

Sun

Moon

—

—

PHASE—

DISK—

Mercury

RISE—

SET—

Mercury

—

Venus

—

—

Venus

—

Mars

RISE—

SET—

Mars

—

Jupiter

—

—

Jupiter

—

Saturn

—

—

Saturn

—

Tonight's Sky — Change location

City/place name

US state, Canadian province, or country

OR

US ZIP code

Searching...

Tonight's Sky — Select location

Tonight's Sky — Enter coordinates

Latitude: ° '

Longitude: ° '

UTC Offset:

Home
/
Back Issues
/
October 2013

submit to reddit

October 2013

ASY-CV1013

The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level.

Features

Top 10 exoplanets

by Richard Talcott

Astronomers have discovered nearly 1,000 planets orbiting other stars. Here we highlight 10 of them.

Web Extra: Exoplanets on the edge

by Richard Talcott

Many of the planetary systems orbiting other stars rank among the strangest objects humans have ever laid eyes on. Here are five more that stick out from this already eccentric crowd.

How Planck has redefined the universe

by Liz Kruesi

This new spacecraft has mapped the universe's matter, refined its composition and age, and revealed thousands of radio sources.

Web Extra: How Planck maps the sky

by Liz Kruesi

This spacecraft has been observing the microwave sky since August 2009.

What makes a Great Comet?

by Joseph Marcus

Slight tweaks in the celestial recipe make a good comet great.

Web Extra: Score your favorite comets

by Sarah Scoles

Using Joseph Marcus’ comet scorecard, find out if your favorite comets are Great or just good.

Comet ISON brightens before dawn

by Richard Talcott

This celestial visitor approaches naked-eye visibility.

Order from chaos — Genesis samples the solar wind

by Meenakshi Wadhwa

This NASA spacecraft captured and returned atoms from the Sun to Earth. What happened next took "recovery" to a whole new level.

10 great autumn binocular sights

by Phil Harrington

Head outside to explore a nearby galaxy, a stellar waterfall, and more.

Web Extra: 10 top autumn binocular treats

by Phil Harrington

All you need to enjoy these seasonal targets is a dark sky and good binoculars.

Spice up your images with Hydrogen-alpha data

by Rod Pommier

Make your images shine by adding light through this narrow-band filter.

"Astronomy" tests Denkmeier's Binotron-27

by Mike Reynolds

High-quality optics and superb mechanics make this accessory a winner.

Columns

The vegetarian star

by Bob Berman

Stellar surprises

by Stephen James O'Meara

Heavenly sketches

by Glenn Chaple

The "RegiStar" connection

by Tony Hallas

Our amazing Moon

by Erika Rix

Departments

Ask Astro

Solar blemishes

Valles Marineris

Planetary nebulae and supernova remnants

Kuiper Belt and Oort Cloud objects

The Sky this Month

Uranus at its best

StarDome and Path of the Planets

In Every Issue

Snapshot
Astro News
Web Talk
Reader Gallery

Breakthrough
Letters
New Products
Final Frontier

PIA14909_hires

The strange chemistry that creates ‘impossible’ clouds on Titan

eso1632a

This is where space blobs come from

ESA_Rosetta_20160911_LR

ESA releases striking new photos from Comet 67P

POPULAR

Searching for aliens who already know we're here

A gamma-ray burst hints that LIGO's double black holes started as one massive star

Pluto's largest moon may have once had an ocean

2016ICE_BEAUTY

Tour Iceland's fire, ice, and aurora with Astronomy!

200x133_eclipseBanner

Join Astronomy for America's 2017 total solar eclipse!

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter.

Sign up

Follow us:

THE MAGAZINE

ASY160801

Table of Contents
Subscribe
Digital Editons

EclipseEguideBooklet

Click here to receive a FREE e-Guide exclusively from Astronomy magazine.

Find us on Facebook

Astronomy Magazine