Ring Nebula M57
The best-known planetary nebula is the Ring Nebula M57, easily found about halfway between Beta and Gamma Lyrae.
Updated: Jun 26, 2024 | By Tom Urbain
The Pleiades
The Pleiades, also known as the “Seven Sisters”, is the most famous of all star clusters. The group is very conspicuous, and has been known and regarded with reverence since early times.
Updated: Jun 26, 2024 | By Tom Urbain
Deep Sky Intro
The category "deep sky" encompasses all astronomical objects beyond our solar system, most of which are invisible to the naked eye.
Updated: Jun 26, 2024 | By Tom Urbain
Comet ISON
3C 273 is the first identified and optically brightest quasar, the super bright nucleus of an “active” galaxy.
Updated: Aug 9, 2024 | By Tom Urbain