M57. The Ring Nebula
Planetary nebula in Lyra

The ring nebula is the prototype of planetary nebula. The ejected material of the star forms a torus. The central star (Mag. 15.0) is the remnant of a star similar to our sun that, at the end of its nuclear-burning life ejected to the space its external layers.
Distance to earth: 2,300 light years
Visual Magnitude: 8.8
More information: Messier index. M57



Full resolution image

Date and location Aug 8, 2025. Caraquiz, Guadalajara
Telescope GSO RC12 Truss, f=2450mm, on ASA DDM85 mount. No autoguide
Camera
Moravian G3 16200. IDAS LPS Hutech y  R, G, B Baader filters
Image processing L: 180x300s; RGB: 82x300s. Processed with Pixinsight




Date and location
 25-jun-2005. Caraquiz, Madrid, Spain
Telescopie 8" Meade LX200GPS, f=2000mm. Equatorial. Autoguide with Toucam and guidedog
Camera Artemis 285. Focal reducer  0,7. IDAS LPR Hutech filter
Image processing
 L: 8x300s. RGB: 2x300s stacked and RGB with AIP4WIN. LRGB and final process with  Adobe Photoshop.

  Previous images of M57


Visits since september 14th, 2004:   Contador

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