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Neptune Image 2008/09/01(UT)
Marc Delcroix,Carl Roussell
M.Delcroix,C.Roussell
Here is a composition of Neptune,Triton and a star around:
Acquisition parameters are detailed in the image below,Neptune is a LRGB (L w/
barlow x 2,R/G/B at prime focus,Triton and star from another image w/ x0.5
reducer - everything assembled together and magnified by x2)
There is a strange artefact which would look oriented correctly along Neptune
equator,but i don't believe it's real.
Measured positions for Triton fit perfectly with the models,but not the
measured magnitude,maybe due to Triton being to close to Neptune as Frank
pointed out.
Please also note that like for the other giant gazeous planets,Triton is more
visible in IR (this is actually the only wavelength were it's visible without
Neptune beeing saturated).
[Marc Delcroix Tournefeuille,France]
|
Carl Roussell(150mm F8 refractor) |
Date: 2008/09/01 4:16 UT
Telesccope: 15cm f/8 Refractor
Magnification: 400x
Seeing: 5/10 Trans: 3/6
Filters: IL
CM=79 Dia: 2.3" De: -28.1
Col Est: Blue Mag Est: +7.7
Notes: Limb darkening only
[ Carl Roussell : Cambray Canada]
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