Globular in Hercules
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: SBIG 10XME NABG with Enhanced Cooling
Guider: SBIG ST4
Exposure: RGB = 20:20:20
RGB Combine Ratio: 1: 1.05: 1.11 (G2V Calibration)
Filters: AstroDon RGB Tricolor
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing FWHM = 10.5 arcsec (Maxim DL - 10min subframe), Transparency 8/10
Outside Temperature: 15 C
CCD Temperature: -20 C
Processing Tools: Maxim DL, Photoshop, PixInsight, RW Debloomer.
HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS
GLOBULARS OPEN CLUST PLANETARIES LINKS
magnitude globular cluster in Hercules is extremely dim, but
contains a colorful assemblage of faint stars. The brightest
stars in this globular are 17.6th magnitude and shows primarily
the orange supergiants and yellow suns. A hint of the blue members
is fleeting. I keep asking myself why I spent an hour on this
one, but the results were worth it.
There are a
number of very faint galaxies in this field, the brightest being
Seeing was terrible,
and blurs were passing over the guidestar 30 arcseconds across!
None the less most was taken care of with the extremely powerful
deconvolution routines in PixInsight.