Wednesday, 8 January 2014

Jupiter 7/1/2014




2 hours on Jupiter last night, great to be out after all the horrendous weather we've been having!

Some notes to go with the sketch -

SPR was obvious all night, faint with nothing to show but the last time I viewed Jupiter was with my 16" with too much power (x189) so it was great to see an improvement on that.

The STB almost merged into the SPR at times, very little difference in contrast between these two areas.

The whole SEB area sucked me in all night, I found it hard to concentrate on other areas and this was mainly due to my eye constantly getting drawn to the large white oval which preceded the GRS. A dark almost brown colour separated the RSH to this white spot. Has this white oval got a name?

Moving back to system II and the NEB showed deep blue festoons although at the time of the sketch none of them reached out into the EQ like they did when I first started viewing 2 hours earlier.

The NTB had an almost wedge shape disappearing to almost nothing on the following limb.

Just as the GRS started to show the last traces of the NNTB slid off the preceding limb which left the NPR showing roughly the same contrast as the SPR.


I was very surprised to see actual colour on Jupiter last night, this happened only sat the earlier stages when seeing was AII but seeing dropped to AIII later and it went back to the usual various shades of grey.


2250 UT
CM 1 - 294
CM 2 -186
Alt 53˚
AII dropping to AIII
Skymax 180 with binoviewers x150 ish

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