Month: September 2015

NGC6960 Veil nebula

The previous picture of the Veil nebula was done by using a focal length of 1000 mm. Since this nebula is huge, I wanted to capture also the other parts. This time I reduced the focal length to 730 mm, by ASA corrector/reducer.

Telescope:Newton 254/1000 mm
Aperture:254 mm
Focal length:730 mm
MountSkywatcher EQ-6
AutoguidingOrion Mini Autoguider
Camera:Moravian instruments G2 8300M @ -30C
Corrector:ASA 2″ corrector/reducer
Filters:Baader Ha, OIII
Exposure:15x Ha, 15x OIII, 600 s, bin 1×1

M13 Great globular cluster in Hercules

Great globular cluster in Hercules is huge, it contains approximately 300 000 stars and it has about 145 light years in diameter and it is 25 thousands of light years away from the solar system. In 1974 a message from Earth was sent to M13 inhabitants, but due to the speed of light will be received after 24,959 years (Arecibo message).