Ieri siamo ritornati a Casera Razzo. Il cielo è stato sereno ma il periodo di Ottobre-Dicembre è quello con il cielo più luminoso dell'anno . THE SQM started from 21:21 (first reading at eight in the evening) and ended at 21:27 (almost three in the morning).
In this period when we were in Val Visdende readings have recorded at least two tenths better. From 21.2 to 21.5 there is much difference: the Milky Way was not as sculpted as well as galaxies and nebulae eyepiece were less clear.
We were a group that has found its way into the shelter Smith (the reason for choosing Casera Razzo knowing that the sky was the least seasonal). There was Lorenzo Burti with his Obsession-like 50 cm, 60 cm with I, Marco Cardin, Andrew Francescon (30 cm), Pierpaolo Campostrini (CPC 8 "), Davide Visentin (45 cm). 50 of Lorenzo, who had seemed so great two years ago, this time I seemed small ...
For the curious, we compared different objects in different telescopes. In general the difference is also only a 10 cm aperture.
The temperature was about -8 ° C and the humidity was very low. Seeing maybe it was not bad, but the temperature difference was decisive. The stars were perfect on the latest on the 160x and 100x. In addition they were no longer point (in some cases I have gone to 265x).
The objects observed were many, as I have said often in several telescopes simultaneously. For example, an item I wanted to see was the Jones-Emberson 1 (PK 164 +31.1). Initially appeared to be elusive Dabvide in 45 of 50 in both of Lawrence. Then we found the right combination of filters and zoom in pretty well and was visible as a disk / ring. In 60 cm with UHC filter at 100x-S has finally shown as a ring (though weak) with two 'breaks. This is what is perceived (see photo for comparison). Ossrvata also Lumicon UHC filter at 160x with perhaps some mostrav thing more.
I tried in vain without recognizing other ghostly planetary really: Puwei 1, Abell 30, Abell 31 and perhaps some other.
We also spent some 'time to see the cone but to no avail.
not I make a list of all the classic nebuolse we observed. I mention only the Rosetta OIII filter with the first 50x 30 cm Andrea (we saw a good slice) and later to 100x (can always 6 mm) in 60 cm. You could obviously shares whose consistency, however, was similar to the previous vision.
Observed Thor's helmet, the more washed out than usual and the N GC 2261. In 60 cm appeared similar to this photo (color included). Look
different galaxies close to 891. In particular, NGC 898 that we could see sustained magnification (265x) as a small galaxy cutting next to the large galqassia cutting is 891. The 898 seemed like the 891 that I had always seen from the rocket Casera 80ED Mirko.
Overall a night finalmente con il cielo sereno, anche se il buio non è stato il massimo.
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