NGC6541 & M25 (GCL 86 or ESO 280-SC4) – is a globular cluster in the southern constellation of Corona Australis. It is estimated to be around 14 billion years old. 6.3 [mag]. Distance from Sun 24,5 tly.
Bahtinov mask is the simplest and most effective tool for manual focusing. Learn how to interpret diffraction spikes on the bright star Vega to ensure your images are always sharp.
M92 is the forgotten pearl of Hercules. Explore the history of this 14-billion-year-old cluster, learn how to find it, and how to photograph it without burning its dense core.
M13 is the brightest globular cluster in the northern hemisphere. This article discusses its extreme density, the elusive “Propeller” (Y-shape) feature, and the fact that we sent our radio calling card there in 1974.
17 Cygnus – Analysis of the 17 Cygnus double star system in the constellation Cygnus. View the crops to see how to resolve close stars and why a 26″ separation is an excellent test for your telescope’s optics.
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