Category: nebula

NGC 6781

NGC 6781 – Aql

Among the celestial treasures, planetary nebulae really stand out. Placed at a few thousands of light years from us, NGC 6781 is a perfect example of that. It is one of the apparently largest...

M 57

M 57, the “Ring Nebula”: a new color view

  After some time of stop, we took a new color image with our Celestron C14 robotic unit, to test the Baader Planetarium RGB filters we installed on the telescope, upgrading from the previous...

Messier 20, the "Trifid" nebula

M 20, the “Trifid Nebula” – Sgr

  Undoubtedly among the most beautiful diffuse nebulae in the sky, Messier 20 is a remarkable deep sky object, with a breathtaking color combination, ranging from blue to deep red and purple: this is...

M 57 in HaRGB

M 57, the “Ring Nebula” – Lyr

The amazing Messier 57 planetary nebula has been imaged several times from the Virtual Telescope robotic facility. Sure, it is one of the most spectacular deep sky objects, easy to see even from live...

M 17

M 17, the “Omega Nebula” – Sgr

The region of Scorpius and Sagittarius is one of the richest places in the sky. Plenty of wonderful treasures there, with some of the most remarkable deep sky objects we know. The diffuse nebula...

NGC 6992

NGC 6992 – Cyg

NGC 6992 is part of the famous “Veil Nebula”, the remnant of a supernova exploded about 10.000 years ago. Its distance is estimated in about 1500 light years and it is in the same...

Barnard 33, the "Horsehead" nebula

The Horsehead Nebula (Barnard 33) – Ori

One of the most famous dark nebulae, Barnard 33 – the “Horsehead” – takes its glory from its unique shape: an horse head, of course! It was recognized on photographic plates by Williamina Fleming...

M 57, the "Ring" nebula

M 57 – Lyr

  With no doubts, Messier 57 is the  most famous planetary nebula in the sky. It is often called the “Ring” nebula, for obvious reasons. It was discovered by A. D. de Pellepoix in...