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Deep Sky Gallery

M4 is one of the nearest globular clusters in the sky; its distance is perhaps only about 7,200 light years. M4 can be detected by the naked eye under very dark skies (1.3 degrees west of Antares, visual brightness 5.6 mag), and is prominent with the slightest optical aid.

Refractor William Optics FLT98 (98/618 mm), TeleVue field flattener/reducer 0,8x, Lumicon DeepSky filter,
SBIG ST8300 CCD camera, -7C; guided on QHY5 , 8x8 minutes exposure.

July 2012.

The Helix Nebula is one of the closest of all planetary nebulae and one of the apparently largest planetaries known. At a distance of 450 light years, its apparent size covers an area of 16 arc minutes diameter, more than half of that of the full moon.

Image is obtained through a refractor William Optics FLT98 (98/618 mm), TeleVue field flattener/reducer 0,8x, Lumicon DeepSky filter, SBIG ST8300 CCD camera, guided on QHY5 , 7x10 minutes exposure. July, 2012.

The Bubble Nebula is an emission nebula located in the northern constellation Cassiopeia. The nebula lies at a distance of 7,100 to 11,000 light years from Earth. NGC 7635 is located near a large molecular cloud, and lies roughly in the same direction as the open star cluster Messier 52.

Refractor William Optics FLT98 (98/618 mm), TeleVue field flattener/reducer 0,8x, Lumicon DeepSky filter,
SBIG ST8300 CCD camera, guided on QHY5 , 15x5 minutes exposure.

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Deep Sky Gallery

M4 Globular cluster in Scorpion

NGC 7293 Helix Nebula

NGC 7635 Bubble Nebula