NGC 6541 & M25

NGC 6541 (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.

NGC 6541, M25 - Zoom

M25 (IC4725) – is an open cluster of stars in the southern constellation of Sagittarius. The cluster is located near some obscuring features, with a dark lane passing near the center. M25 is at a distance of about 2,000 light-years light-years away from Earth and is 67.6 million years old. The spatial dimension of this cluster is about 13 light-years across.

Photos (June 2019) taken at Tenerife, exactly in the place next to “God’s finger”. A great place for astrophotography during night and long conversations about the nature of time, speed of light, wondering if life exists in other planetary systems…


Equipment: Canon EOS 6D (no mod) with a Canon EF 200 [mm] 2.8L II USM lens, on a glued iOptron CEM 25 mount, which I accidentally earlier crashed on beton.

  • Composition: Astro Pixel Processor,
  • Processing: GIMP v2.10.14 + plug-ins (Linux),
  • Lights: 10 x 90[s] ISO 1000,
  • Flats: 40 ISO-1000,
  • Darks: 17 ISO-1000,
  • Bias: 20 ISO-1000