- The Little Dumbell
Nebula in Perseus
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling
Guider: SBIG ST4
Exposure: HaRGB = 80:20:20:20 (RGB NOT Binned)
RGB Combine Ratio: 1: 1.05: 1.11
Filters: AstroDon RGB Tricolor
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing FWHM = 5 arcsec (Maxim DL - 10min subframe), Transparency 8/10
Outside Temperature: 35 F
CCD Temperature: -30 C
Processing Tools: Maxim DL, Gralaks Sigma, Photoshop, PixInsight, Starizona Debloomer.
HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS
GLOBULARS OPEN CLUST PLANETARIES LINKS
This is my deepest
image yet of this celestial splendor, a dying star in the winter
Milkyway. Extreme care was taken to ensure correct coloration
on both the stars and nebula when the luminance was incorporated.
Composed of two parts, NGC650 & NGC651 this 12.2 magnitude
planetary nebula displays very clearly the twin hoops or ears
that are known to follow the magnetic field lines of the central
star. With a size of 170 arcseconds, it rates as one of the larger
of such objects with a 16th magnitude central star.
The LRGB color correction technique was used to its fullest capacity
here, to enable the enhanced LRGB to match the G2V calibrated
RGB image as closely as possible. A screened duplicate layer
was combined with the luminance data using a mask made from the
image itself, converted to a negative. This enabled rich detail
in both the brightest and dimmest areas of nebulosity.