Lesser known Open Star Clusters.
Open Star Clusters.
Melotte 25 [credit: NASA/ESA/STScI]
Wide-field observations of Open Star Clusters.
The Takahashi FSQ-85ED is a Modified Petzval quadruplet apochromat refractor.
Going the distance for dark skies.
The Takahashi 7x50mm Finderscope is a doublet refractor.
The TeleVue Nagler eyepiece line is an industry standard in the field of astronomy.