The Night Sky This Week

The arch of the northern spring Milky Way across the eastern sky, as seen on a beautifully clear and … [+] mild spring night at Dinosaur Provincial Park, Alberta on May 14, 2018 The galactic centre in Sagittarius is at right to the south Jupiter is the bright object in the southwest at far right; above it Arcturus The Summer Triangle stars are rising in the east at centre, including bright blue-white Vega at top centre The Big Dipper is at far left Due north and the North Star are at left toward the faint yellow-green and magenta glow of aurora on the horizon Little of the aurora was visible to the eye Bands of green and red airglow colour the sky at centre and at right to the south The distinct and sharp-edged band of airglow was present all through the shooting session This is a stitch of 21 segments, in 3 tiers of 7 each, taken with the Syrp Genie Mini controller in panorama mode, but with the camera manually raised from 0 to 30 to 60 altitude for each of the three tiers The Mini did the azimuth panning and shutter control automatically All exposures were 30 seconds at f/28 with the Sigma 20mm Art lens and Nikon D750 at ISO 6400 Stitching was with PTGui which did the job fast and seamlessly. (Photo by: VW Pics/Universal Images Group via Getty Images)

Universal Images Group via Getty Images

Each Monday I pick out the northern hemisphere’s celestial highlights (mid-northern latitudes) for the week ahead, but be sure to check my main feed for more in-depth articles on stargazing, astronomy, eclipses and more.

What To See In The Night Sky This Week: May 8-14, 2023

With full Moon behind us the night skies at last begin to darken. A waning gibbous Moon later this week means our bright satellite rises after midnight, leaving the post-sunset night skies dark—and perfect for stargazing. As usual, being on planet Earth is all about balance. Sure, the skies are becoming moonless, and the rising temperatures in the northern hemisphere are making stargazing more enjoyable, but as May wears on the hours of astronomical darkness drastically dwindle. After all, we’re only six weeks from the solstice … so get those stars gazed at while you can!

Monday, May 8: Mars in Gemini

Stellarium

Monday, May 8: Mars in Gemini

Tonight in the western sky after sunset it will be possible to see the planet Mars close to Pollux, one of the two bright stars in Gemini.

Friday, May 12: Last Quarter Moon

Today will see a Last Quarter (or Third Quarter) Moon, which will appear half-illuminated and rise after midnight. Over the next week, its rising time will gradually shift later by about 50 minutes each night, clearing the way for night skies that are darker for longer.

Saturday, May 13: ‘Milky Way’ weekend

With the night sky darker and our planet in the “right” place in its orbit of the Sun, this weeked will see the brighter core of the Milky Way appear to those in the northern hemisphere. Best seen shortly after sunset in the eastern sky, a dark sky destination will be crucial—this is not something you’ll see from an urban backyard.

Constellation of the week: Boötes

The constellation of Boötes, “the herdsman,” is a sign that summer is on its way. The brightest star by far is in Boötes is the red giant star Arcturus, one of the brightest stars that can be seen from Earth. It’s just 37 light-years away.

M51, a spiral galaxy, and its “companion” galaxy, NGC 5195, which is relatively structureless. Taken … [+] from the U.S. Naval Observatory. (Photo by © CORBIS/Corbis via Getty Images)

Corbis via Getty Images

Object of the week: Whirlpool galaxy

A face-on spiral galaxy that can be seen interacting with a smaller galaxy, the Whirlpool—also called M51—can be seen using any small telescope. It’s a massive 28 million light-years distant in the constellation Canes Venatici close to the Big Dipper. Astronomers think there’s a Saturn-sized planet—the first so-called “extroplanet”— orbiting one of its stars.

Times and dates given apply to mid-northern latitudes. For the most accurate location-specific information consult online planetariums like Stellarium and The Sky Live. Check planet-rise/planet-set, sunrise/sunset and moonrise/moonset times for where you are.

Wishing you clear skies and wide eyes.

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