Newest observations
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Kangasala, One halo form
I
4.10.2023 at 11.36 -
Kangasala, One halo form
I
3.10.2023 at 15.57 -
Kurikka, One halo form
I
3.10.2023 at 15.06 -
Järvenpää, One halo form
I
3.10.2023 at 11.00 -
Porvoo, Sondby, One halo form
I
3.10.2023 at 09.57 -
Turku, One halo form
I
3.10.2023 at 05.40 -
Kurikka, One halo form
I
2.10.2023 at 15.05 -
Kannonkoski, Bishop's ring
II
2.10.2023 at 14.57 -
Kuusamo, Käylä, Bishop's ring
III
2.10.2023 at 14.29 -
Kurikka, Jurva, One halo form
I
2.10.2023 at 12.40 -
Kurikka, Jurva, Bishop's ring
2.10.2023 at 11.53 -
Kannonkoski, One halo form
I
2.10.2023 at 11.26
Contact information
Visibility II / V
We got an idea from the team for the talkoo activity weekend from 12-14.6 summer observations, a week before midsummer. The spherical star clusters were chosen as the target. The observation device was Artjärvi Tähtikallio's Alluna RC-16 and Sbig STL1001 camera. We first tried the filters, M107 on a dim target. Only with the R filter did we get something visible. H-Alpha was very noisy, Blue B something, L and G saturated. We took 30s of 2s exposures with R-filter from all our subjects. I took pictures with MaximDL v4.5 and my poor handling skills. Image calibration was not successful without working smoothing images. The targets were M107, M10, M12, M14, M13, M92.
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