Messier 108

Messier 108

Messier 108 – The Surfboard Galaxy

Messier 108 (M108), often nicknamed the Surfboard Galaxy, is an edge-on spiral galaxy located in the constellation Ursa Major, not far from the bright star Merak in the bowl of the Big Dipper. It lies approximately 45–50 million light-years from Earth and shines at an apparent magnitude of about 10.0, making it a good target for medium-sized amateur telescopes under dark skies. Visually, it appears as a narrow, elongated streak of light, which gives rise to its surfboard-like appearance.

M108 is classified as a barred spiral galaxy, though its structure is difficult to see directly because we view it nearly edge-on. Long-exposure images reveal a mottled, irregular disk filled with dark dust lanes, bright knots of star formation, and scattered foreground stars from our own Milky Way. Unlike the grand, symmetrical spirals seen face-on, M108 presents a more rugged and textured view, showing the layered complexity of a galaxy seen from the side. The galaxy is also notable for its energetic activity. Observations show regions of active star formation and evidence of disturbed gas and dust, possibly shaped by gravitational interactions within its galactic environment.

---

Sources

• NASA/IPAC Extragalactic Database (NED) – M108 / NGC 3556
• SIMBAD Astronomical Database – Messier 108
• SEDS Messier Database – Messier 108
• NASA/IPAC Infrared Science Archive (IRSA) – Galaxy data for NGC 3556

Astrophoto Recents, Astrophotography