Spring Galaxy Season: Mid-April Is Your Window
Best datesApr 14–20 (new Moon Apr 17)
Min. telescope4" suburban; 6"+ recommended
Best targetsLeo Triplet, Markarian’s Chain, Sombrero
Spring is galaxy season in the Northern Hemisphere, and the two-week window around April’s new Moon is when serious deep-sky observers live outside. With the Moon absent from the sky, even moderately light-polluted locations can reach galaxies tens of millions of light-years away.
The Leo Triplet (M65, M66, NGC 3628)
The Leo Triplet is the crown jewel of April’s deep-sky targets. Three galaxies — M65, M66, and NGC 3628 — fit within the same low-power telescopic field of view. Look for them in the constellation Leo, below the hindquarters of the Lion.
Through a 4" telescope at 50×–80×, all three appear as soft, elongated smudges. M65 and M66 show brighter, more concentrated cores. NGC 3628 — nicknamed the Hamburger Galaxy for its edge-on disk and dark dust lane — is fainter but unmistakable in shape.
Through a 6"–8" telescope under dark skies, dust lanes and the distinct spiraling structure of M66 start to emerge.
Markarian’s Chain and the Virgo Cluster
If you have a wide-field eyepiece and a dark sky, sweep slowly through the border of Virgo and Coma Berenices. You are flying through the heart of the Virgo Galaxy Cluster — a gravitationally bound city of thousands of galaxies, approximately 54 million light-years away. Markarian’s Chain — a curved arc of eight galaxies including M84, M86, and several fainter members — is one of the most spectacular sights in the spring sky with an 8" telescope.
The Sombrero Galaxy (M104)
The Sombrero Galaxy in Virgo is one of the most recognizable galaxies visible in a backyard telescope. Its bright, bulging nucleus and prominent dark dust lane across the disk’s edge give it an instantly recognizable silhouette. A 6" telescope at 100× makes the dust lane obvious. It is one of the most photographically satisfying objects in the spring sky.
Ready to chase galaxies? Our
best telescopes for deep-sky observation guide covers the exact apertures and eyepieces needed for spring galaxy season.