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The July edition of the Binocular Sky Newsletter is ready. Astronomical darkness returns to the southern part of the UK this month, and we have:
* Yet another "promising" comet
* Asteroid Ceres
* Neptune and Uranus return
I hope this helps you to fill your evenings (actually, more likely pre-dawn mornings!) enjoyably.
To pick up your free copy, just head over to http://binocularsky.com and click on the Newsletter tab, where you can subscribe (also free, of course) to have it emailed each month, and get archived copies.
I've just managed to get hold of an AsiAir Pro. First impressions are just spot on. I had a little concern when it arrived as I wasn't sure if it would handle a USB hub. Much to my surprise it did! I connected the following to make sure
ZWO178mm Main Camera at present
ZWO120mm Mini Guide Scope
ZWO EFW Mini Filter Wheel
SkyWatcher EQ 35 Pro via USD with Direct PC Connect option using the EQMount INDI driver
Powered EQ Mount, EAR via AsiAir Pro
All connected successfully. Will keep updating as I start to use 🙂
At long last I have managed to image Caliban, also known as Uranus XVI. It is a small (circa 72km) outer satellite of Uranus which was discovered in September 1997 using the Hale 5m telescope at Palomar. Incidentally, Sycorax (U-XVII)was discovered in the same observing session. That satellite is around 1.7 magnitude brighter and so much easier to observe.
Although a three hours exposure, unfiltered for maximum sensitivity, was used the signal to noise ratio is barely 3 and serious image processing was needed to produce a relatively clear image. Even so, it is not especially obvious. The reason is that the MPOC ephemeris predicts that the satellite has a magnitude of 22.2 at the time of observation. More information is available at http://www.astropalma.com/Projects/Satellites/caliban.html
This is my third Uranus capture this season. I am much happier with this result.
The seeing helped a lot and the sky quality was favorable.
This image is the result of 5 de-rotated videos on Winjupos, all captured with IR742 filter. The result was used as luminance in the composition. RGB came from a normal color capture.
Following the images of other friends, we can notice the atmospheric activity on the planet. It seems to be changing every week. Many changes can still happen until the opposition.