Frustrated with the high cost of a proprietary Go To, the author developed a free, open source, DIY option, rDUINOScope Boiana.
The Winter Hexagon fills the sky toward the east and south these evenings. Start with brilliant Sirius at its bottom. Going clockwise from there, march up through Procyon, Pollux and Castor, Menkalinan and Capella on high, down to Aldebaran, then to Rigel in Orion's foot, and back to Sirius.
February's astronomy podcast offers you a trio of bright planets to spot before dawn and a plethora of bright stars to check out each evening.
The launch of the Humanity Star has some fuming, others smiling, at the prospect of seeing a bright, new satellite. What do you think?
Get ready for a celestial event — a total lunar eclipse during the month's second full Moon and near lunar perigee — that hasn't happened in 35 years!
The Moon, two days past first quarter, shines to the right of Aldebaran and lower left of the Pleiades. The Great Square of Pegasus is sinking in the west.
A slow, relentless rhythm, known as the saros cycle, is hidden away in the movements of the Moon and Sun. How does it foretell eclipses — and how could Babylonians discover its existence long before modern science and technology?
An unusual dawn total lunar eclipse presents special challenges and great photo opportunities. Here's what you need to know to make the most of it.
Here's all you need to know to help us measure the size of Earth's shadow on Jan. 31, 2018.
A spectacular fireball seen by hundreds of people from Iowa to Ontario delivered precious samples from the asteroid belt to the lake country of southern Michigan Tuesday night.
Sirius twinkles brightly below Orion in the southeast. Around 8 p.m. Sirius shines straight below Betelgeuse in Orion's shoulder.
Mira, one of the easiest-to-observe pulsating variable stars, reaches peak brightness this month. Don't be shy, come look her in the eye.
Friday, January 12 • Sirius, the Dog Star, rises in the east-southeast around the end of twilight now, if you're near latitude 40° north (New York, Denver, Madrid, Athens). From such latitudes, Procyon — left of Sirius, by 2½ fists at arm's length — precedes it up; "Procyon" is from the ancient Greek for "before…
We look ahead to see what fuzzy visitors, new and returning, will brighten the nights ahead. One and possibly two naked-eye comets are on the way.
Orion strides up the southeastern sky after nightfall in January. Above it glitters Aldebaran. Above Aldebaran are the Pleiades. Far left of them shines Capella.
The new year opens with the magnificent pairing of the solar system's largest planet with one of its smallest.
The Quadrantid meteor shower is usually one of the year's best. But this year's event will be spoiled by strong light from an intruding Moon.
On Wednesday, January 31, 2018, the first total lunar eclipse in more than two years graces the skies above North America. The Western United States, including Alaska and Hawaiʻi, has the best view.
January's astronomy podcast describes how to spot Mercury, Mars, Jupiter, and Saturn in the predawn sky during January — plus you'll learn about a "trifecta" full Moon at month's end.
In the evening sky tonight, look lower left of the waxing gibbous Moon for Aldebaran, and upper left of the Moon for the Pleiades.
Two total lunar eclipses occur this year, the first since late 2015, in January and July. Meanwhile, three solar eclipses take place in 2018 — all of them only partial cover-ups.
More than a dozen times each year, we experience a pulse of "shooting stars" from an annual meteor shower. Sky & Telescope predicts that the two best meteor showers in 2018 will be the Perseids in mid-August and the Geminids in mid-December.
Beginning in 1645, obsessed observers drew maps of the Moon's face in ever-greater detail. These observers made it into the author's Lunar Hall of Fame.
Sirius, the Dog Star, sparkles low in the east-southeast after dinnertime. Procyon, the Little Dog Star, shines in the east to Sirius's left.
The Local Group galaxies and their kin are the building blocks of the most magnificent galaxies in the universe. Let them inspire your winter nights.