Newest observations
-
Turku, Negative observation of missing night shining clouds
7.6.2023 at 00.00 -
Rautalampi, One halo form
I
6.6.2023 at 14.49 -
Kurikka, Jurva, Several halo forms
II
6.6.2023 at 14.00 -
Turku, Several halo forms
II
6.6.2023 at 13.03 -
Ruokolahti, Haloniemi, One halo form
I
6.6.2023 at 11.00 -
Saarijärvi, Several halo forms
II
6.6.2023 at 10.39 -
Kangasala, One halo form
I
6.6.2023 at 08.58 -
Kurikka, Pollen corona
IV
6.6.2023 at 07.52 -
Kurikka, Sun
V
6.6.2023 at 07.50 -
Vantaa, Pa?hkina?rinne, Negative observation of missing night shining clouds
6.6.2023 at 00.30 -
Turku, Hirvensalo, Several halo forms
II
5.6.2023 at 20.00 -
Turku, Several halo forms
II
5.6.2023 at 19.55
Contact information
Visibility II / V
Rauno Päivinen, Etelä-Karjalan nova
The sky brightened up for a while on Christmas Day evening, and since eating ham was already getting dull, I included star photography in the program.
After initial difficulties, I aimed the tube at this small planetary nebula IC 5217 (PNG 100.6-05.4) found in the constellation Sisilisko. The object is only 7 arcseconds in size. The brightness is 11.3 mag, so the surface brightness is still good.
Due to its small size, it is very difficult to see any details. However, the more skilled ones in the world have also made the internal structure visible with a planetary camera and short exposures. I thought of trying the same thing the next evening, but the color camera didn't agree to cooperate. The slightly oval oval shape stands out.
I took the C14 through a series of 30 exposures of 3 min. An h-alpha filter was used to reduce light pollution.
Desktop version of the site
Show the mobile version
Site development by the Skywarden team and E. Bruus.
© 2011- 2023 Ursa Astronomical Association. All rights reserved.
Privacy policy