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Sky Watch by J. Alex Knoll

Look overhead to Corona Borealis

With week’s end, the sun sets at 8:20 and each night after almost a minute later. But it’s still more than an hour later that the glow of dusk gives way fully to darkness. By that time Saturn shines high in the south, the only planet visible until well before dawn.

Look for the hero Hercules between the stars of spring and summer

The waning gibbous moon rises in the southeast a couple hours before midnight at week’s end, but Tuesday’s last-quarter moon does not crest the horizon until almost 2am.

Four planets await the keen-eyed early bird

The sun sets this week around 8:10. Following the trail of the sun, look above the northwest horizon for golden Capella, the sixth-brightest star. Opposite, in the northwest, shines Vega, the fifth brightest star. This time each year, the two line up at the same height in the sky, right now around 10pm.

Meteors and planets dance across our skies

The annual Eta Aquarid meteors will likely be at their best before dawn Friday with encores possible early Saturday and Sunday. Unless you’re pulling an all-nighter, you’ll have to wake early, as the closer to dawn the greater their intensity.

Follow the Big Dipper

The sun sets a little before 8:00 this week, with full darkness coming almost an hour later. By that time, the great bear Ursa Major is almost directly overhead. The third-largest constellation, Ursa Major has been seen as a great she-bear by ancient peoples from Greece to India, Babylon to North America.

Only the strongest of this year’s Lyrid meteors will pierce the glare

The waning gibbous moon rises around midnight at week’s end and shines bright through dawn, which puts a damper on the annual Lyrid meteor shower, peaking in the dark hours of Thursday/Friday and Friday/Saturday.

A rainbow of hues shines from the heavens

The waxing moon reaches full phase Sunday. Saturday it shines less than 10 degrees — the span of an average fist held at arm’s length — below Saturn, the only visible evening planet. The next night, the full moon is farther to the east of Saturn, and the star Regulus five degrees above it. Saturn and Regulus appear about equally bright, both near first magnitude, but Saturn’s steady golden glow is a sharp contrast to the twinkling, blue-white star.

Follow the moon to these star clusters

The moon waxes through afternoon and evening skies this week, passing through the spring constellations of the zodiax and reaching first-quarter phase Monday.

We have several planets to look for, but they’re disappearing fast

The waning moon reaches last-quarter on Saturday, rising around 2:30am and shining high in the south as the sun rises at 7am. If you’re up before this time, look to the east for blazing Venus.

Neither plane nor loon, it’s Super Moon

Thursday’s near-full moon shines below the bright star Regulus, the heart of Leo the lion. This star, 77 light years away, has four times the girth, burns more than twice as hot and is more than 100 times brighter than our sun.