M13 or NGC6205) is a globular cluster in the constellation of Hercules discovered by Edmond Halley in 1714.
It is barelly visible by the human eye under a dark sky...
It is barelly visible by the human eye under a dark sky...
Last week i finally had the chance,after several months,of inactivity, to find myself under the dark sky of Drassa and test the new field flattener for the equinox 80.The night was very cloudy but i had the luck of an 1 hour window...so i pointed at the highest DSO at that time which was..M13.
The photo is the result of 12x300" exposures with the respective calibration frames.(darks,flats,bias).
Mount: CG5-GT
CCD:QH8L
There is a slight misalingment of the optics which is visibile in the upper left corner but overall i believe this flattener (TecnoSky 1x) is doing a fine job considering the sensor size.
By clicking on the picture below you may view the 1650x1100 version.
Clear Skies
The photo is the result of 12x300" exposures with the respective calibration frames.(darks,flats,bias).
Mount: CG5-GT
CCD:QH8L
There is a slight misalingment of the optics which is visibile in the upper left corner but overall i believe this flattener (TecnoSky 1x) is doing a fine job considering the sensor size.
By clicking on the picture below you may view the 1650x1100 version.
Clear Skies
Here is a 100% (actual pixels) crop on M13 )