Newest observations
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Vaasa, Other storm phenomenon
I
28.6.2022 at 20.00 -
Kurikka, Other storm phenomenon
IV
28.6.2022 at 17.20 -
Akaa, At least 5 lightning strikes seen
28.6.2022 at 15.30 -
Kurikka, Sun
II
28.6.2022 at 15.07 -
Kurikka, Image of an exceptional thunder cloud
III
28.6.2022 at 14.58 -
Mustasaari, Helsingby, Image of an exceptional thunder cloud
III
28.6.2022 at 05.33 -
Turku, Crepuscular rays
II
28.6.2022 at 00.38 -
Fregenal de la Sierra, Espanja, Binocular comet PanSTARRS
I
28.6.2022 at 00.08 -
Pori, One halo form
I
27.6.2022 at 23.05 -
Kurikka, Sun
III
27.6.2022 at 12.05 -
Porkkala, Kirkkonummi, Sun
V
27.6.2022 at 11.15 -
Turku, Several halo forms
II
27.6.2022 at 03.30
Contact information
Visibility V / V
Ben Kalland, Ursa (Helsinki)
The sun is active again. The figure shows 8 named active areas, the largest being AR3014 in the upper left corner. When exposed in this way, the protuberances do not show up properly, but the filaments stand out lighter against the surface. Lunt 80, 560 mm, DS, stack of 250 images.
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DS tarkoittaa ilmeisesti tuplastäkkäystä. Millä kameralla saat koko auringon mahtumaan ?
Kyllä, DS tarkoittaa double stack. Kamera on ASI183 MM, sillä saa tällä polttovälillä koko auringon mahtumaan, hieman alisämplattynä (f/7 kun ihanne tälle sensorille voisi olla f/8-9)