Open Star Clusters — Young Groups of Stars
Open star clusters are loose groups of stars that formed together from the same cloud of gas and dust. Their stars are typically young and spread out across the sky, often showing a wide range of colors that reflect different stellar temperatures and stages of evolution.
Open clusters are among the easiest deep-sky objects to image. Because they consist primarily of stars, they are broadband targets and are captured without filters and even short integration times can produce attractive results.
Many open clusters are relatively large and are well-suited to short and medium focal lengths, including DSLR or mirrorless cameras with telephoto lenses. Many can be captured in a single frame with wide-field setups.
Open clusters can be imaged successfully even from heavily light-polluted locations, since bright stars remain visible despite skyglow. Dark skies can improve the surrounding star fields and reveal faint background structure, but they are not essential for good results.
These images show real objects captured from Earth with modern astrophotography equipment. Many of them represent hours — sometimes dozens of hours — of collected light, carefully processed to reveal details that would otherwise remain invisible.
No simulations and no AI-generated imagery, only real photons gathered under the night sky.
M45 – The Pleiades – captured with a Sky-Watcher Esprit 100 at f/4.12 with ASI2600MM Pro camera and LRGBH filters. Image by Cosmic Captures
M46 – processed by Cosmic Captures from Telescope.Live image data
NGC 869 & NGC 884 (h and χ Persei) – The Double Cluster – captured with a Sky-Watcher Esprit 100 at f/4.12 with ASI2600MM Pro camera and LRGBH filters. Image by Cosmic Captures
M44 – Beehive Cluster – processed by Cosmic Captures from Telescope.Live image data
IC 2602 – The Southern Pleiades – processed by Cosmic Captures from Telescope.Live image data