The Needle Galaxy (NGC 4565)
NGC 4565 is a spiral galaxy seen almost perfectly edge-on from Earth - its thin disk bisected by a dark dust lane, presenting one of the most elegant and geometry-driven views in the deep skyAnything beyond our own solar system: nebulae, galaxies and star clusters. Faint, far away, and the reason for long exposures..
The Needle Galaxy lies around 30–50 million light-years away in the constellation Coma Berenices. It is often cited as one of the finest examples of an edge-on spiral galaxy visible from the northern hemisphere - the near-perfect alignment with our line of sight means we see its disk as a thin sliver of light, with the central bulge rising above and below the plane like a lens.
The dark dust lane that runs the full length of the disk is the defining feature - a band of cold, unilluminated gas and dust that bisects the galaxy cleanly when seen from this angle. What we are looking at is essentially the same structure as our own Milky Way would present to a distant observer.
The Needle rewards longer focal lengths - the more you can resolve along that thin disk, the more detail you pull out of the dust lane and the faint extensions of the outer arms. Background galaxies in the same field are a nice bonus.