Your guide to astrophotography

M96, an impressive spiral galaxy of grand design, dwells approximately 31 million light-years away in the constellation Leo Minor. This galaxy presents well-defined spiral arms that wrap around a prominent central core. Unlike some spiral galaxies with loosely wound or fragmented arms, M96 showcases a majestic symmetry.

The dark dust lanes within M96’s spiral arms are not merely aesthetic; they play a crucial role in the galaxy’s ongoing star formation. These dense clouds of dust and gas provide the raw materials for birthing new stars. As the dust and gas collapse under their own gravity, they heat up and eventually reach a point where nuclear fusion ignites, giving rise to a newborn star.

Roughly 33 million light-years away in the constellation Leo resides a majestic barred spiral galaxy known as Messier 95, or M95 for short. M95 is a vibrant, young galaxy by cosmic standards. Its spiral arms are teeming with star formation, fueled by vast reserves of gas and dust. A prominent feature within the galaxy is a ring-shaped structure encircling the central bar. This ring is a hotbed of star formation, churning out new stars at a rapid pace.

M95 and the Milky Way galaxy are actually quite comparable in size. Estimates suggest M95 has a diameter of around 75,000 light-years, while the Milky Way is thought to be roughly 100,000 light-years across. So, the Milky Way might be a bit wider, but they’re both considered large spiral galaxies.

Situated roughly 23 million light-years away in the constellation Canes Venatici, the Hunting Dogs, M106 stands as a grand intermediate spiral galaxy. With a diameter exceeding 130,000 light-years, it rivals the size of our Milky Way galaxy.

Despite its grandeur, observing M106 presents a challenge for astrophotographers in the Northern Hemisphere, as it never ascends very high above the horizon. Nevertheless, astrophotographers can capture swirling arms, luminous gas clouds, and a detailed central region.

Nestled within the constellation Leo (the Lion) lies a bright pair of galaxies: M96 and M95.

Messier 96 (on the left), also known as M96 or NGC 3368, is an intermediate spiral galaxy about 31 million light-years away. It is also about the same size as our own Milky Way galaxy.

Messier 95 (on the right), also known as M95 or NGC 3351, is a barred spiral galaxy (notice the central bar structure) about 33 million light years away.