土星 ALPO-Japan Latest
Saturn Image 2015/07/09(UT)
Marc Delcroix,John Sussenbach
Marc Delcroix (320mm Newton)|
I test the new color camera from ZWO,ASI224MC
With the same gain as with my ASI174MM which gives me excellent results (despite Saturn being less than 28° high) since the
beginning of this apparition,I here expose twice faster,and the image is really clean - very low noise in faint lights,
the satellites here looks really nice,this is the best I did this year. And there is still room for improvement with the
gain setup moderate.
Note on this image the perturbed polar area rising top left of the globe.
And the best for me is that somehow magic image of Saturn in methane absorption band,the best one I ever got,with nice bands
and relatively low noise (for an image in that wavelength)
Again,large room for improvement: that image was made without binning (it's not resized,anyway no binning on that camera
but it looks like it's not a problem ),with an exposure time about twice shorter than with the monochrome ASI120MM,
and gain not setup to the maximum ...
This first test really satisfies me,I still need to optimize the parameters - not tonight,wind is back unfortunately ....
[Marc Delcroix Tournefeuille,France]
John Sussenbach(C14 356mm SC)|