天王星 ALPO-Japan Latest

Uranus Image 2014/08/11(UT)

Stanislas Maksmowicz,Tiziano Olivetti,Alexander Obukhov
S.Maksmowicz,T.Olivetti,A.Obukhov

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I had a look this morning on Uranus with using the 203mm Cassegrain.
Full moon a little disturbing as the sky was hazzy and windy conditions.
Average conditions with 3-4/10 images (poor) with periods of 5-6/10 images
at 333-350 and 400x.
Banding structure was appearing faintly with something not clear near the
CM at around 02H10UT (below the equator circle),nothing noted at the limbs.
Observations ware leaded between 01H30 to 03H00UT (CM 178-193°).
South hemisphere (according to HST orientation) was the darker feature,
north hemisphere was clearer grey tone with a darker part at the north band
limit,north pole (according to HST orientation) was clear.
The patch collected near the CM (may be at CM 150° around) is uncertain
with regards the sky conditions,the present seeing and the aperture in
use,was not enough seen.
If the patch collected is the features object to the alert,this is not
well contrasted even using the W8 filter.
I will try again with a bigger size,hope the sky will be steadier.
CM were calculated with winJupos.

[Stanislas Maksymowicz  Ecquevilly,France]

last night the sky was unexpectedly clear,therefore I spent most of the night imaging.
Here is the results on Uranus,in the IR images there are some features resembling banding,
but they could well be artifacts.
The planet is very faint in IR,I used 0.5 s exposure.
The orientation is indicated in the picture.

［ティジャノ:オリベッティ　イタリア］
[Tiziano Olivetti : Soiano del Lago Italy]

2014/08/11  22:40(UT)  CM=251.6 (15 mins)
280mm S-C (Celestron C11), QHY5L-2, 1.8x Barlow, Baader >610 nm
Seeing 8-9/10, Trans 6-7/10
3000 frames X 100ms

[Alexander Obukhov:Moscow,Russia]

ALPO-Japan Latest Uranus Section	2014/08/14
	2014/08/10