|M57. The Ring Nebula|
|Planetary nebula in Lyra|
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
|Telescopie||8" Meade LX200GPS, f=2000mm. Equatorial. Autoguide with Toucam and guidedog|
|Camera||Artemis 285. Focal
reducer 0,7. IDAS LPR Hutech filter
||L: 8x300s. RGB: 2x300s
stacked and RGB with AIP4WIN. LRGB and
final process with Adobe Photoshop.
|Visits since september 14th, 2004:|