Antonio Cidadao (250mm LX200SCT : FLICM7 1E CCD camera)
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![](j040121p.jpg)
Bad seeing, degrading with time did not allow thr production of good data
for Methane 5nm-18nm ratios, but data is here anyway.
The STB dark spot is seen in IR and is dark in methane (see enlargement of
the IR-CH4 pair).
There is a SEB sector preceding the GRS, dark in methane (arrowed), that is
not dark in broadband IR.
Wished the CH4 image-ratio was sufficiently good to say if the same pattern
currently observed in NTB also aplies to this SEB sector. It is IR bright
(as NTB), methane dark with both methane filters (as is NTB), and the
question remaining is if it is darker with one methane filter with respect
to the other.
Good observations
≪アントニオ シダダオ ポルトガル≫
[Antonio Cidadao Oeiras - Portugal]
Joao Antonio Pereira Clerigo(LX200GPS Mak 7" . ToUcam 840K)
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![](j040121q.jpg)
this is my first time participating
hope averythig allright.
Jupiter -
2004/01/21 01:21:20 UT
CMI: 234,6° CMII: 74,3° CMIII: 350,7°
Meade LX200GPS Mak 7" @ f/24
ToUcam 840K + IRF
Scopetronix MaxPower Lens
Seeing 8/10 Trans 8/10
Joao Clerigo
Regards, Joao Clerigo
[ Joao Antonio Pereira Clerigo: M.Grande, Portugal]
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