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Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Newest commented observations

Binocular comet

6.2.2023 at 19.00 - Mäntyharju (I)
Markku Siljama, Ursa (Etelä-Suomi)

Comet update. Visible in the constellation Ajomie, couldn't be in an easier place. Not visible to the naked eye. Distance from Earth 49 million kilometers. In Figure 3, I determined the brightness of the comet with an unsharp focus of n 6.5 mag. Picture 4 bonus, I turned the camera to Pyhäselka towards the moonlight, fog further away, freezing 7 degrees, upper clouds.

Images: 4 pcs • Comments: 1 pcs

Rare halos

4.2.2023 at 18.30 - 01.30 - Jämsä (IV)
Jari Luomanen, Ursa (Länsi-Suomi)

Mikkilä and I were team hunting for a long time. The predictions promised a slab crystal inferno, and we got something of a kind. First there was a good set with lower side suns and Lowitzes. In addition to the concave and convex Lowitz shape, a divergent tail (i.e. caused by non-parallel light) seems to come from the lower side suns, and in the same pictures there is of course also a so-called a superlamp (i.e. relative to the divergent light of the upper sun) as an extension of the pillar.* The images of the Lowitz phase (the two images where the lower side suns are sharp) have some funny ju...

Images: 8 pcs • Comments: 1 pcs

Rare halos

4.2.2023 at 18.30 - 01.30 - Jämsä (IV)
Marko Mikkilä

Years of dreaming about a halo observation trip came true last Saturday at short notice. The forecast showed excellent weather for Himos and at the same time the full moon was beautiful in the sky. So let's go. Jari Luomanen and I booked a cottage as a base for the halo trip. The evening started around half past seven when we set out to explore the area. The first blow resulted in a return trip to the cabin when someone forgot Blokker at the cabin. (Me) Around eight in the evening it started to happen. Ice fog formed in an area of a few kilometers and we found a good dark field where we fi...

Images: 6 pcs • Comments: 1 pcs

Pintahalo

6.2.2023 at 09.30 - 09.45 - Turku,Ruissalo (II)
Paula Mattila

There didn't seem to be any halos in the clouds in the morning, but there was a frozen and snow-covered cove on the shore of the Ruissalo National Park where a surface halo could be seen.

Images: 2 pcs • Comments: 2 pcs

Satellite

6.2.2023 at 05.26 - Kokkola (III)
Pentti Ketola, Ursa (Länsi-Suomi)

There was a full moon in Kokkola and a quiet night, so I started the timer photography session at half past four and there were 681 raps. Otava aligned this satellite quite nicely, but the direction did not match Heavens Above's drawings..

Images: 2 pcs • Comments: 1 pcs

Rare halos

6.2.2023 at 10.15 - 10.45 - Nilsiä (IV)
Hanna Hyvönen

Weak/variable cloudiness and a light drizzle of snow in Nilsiä was caused by these things. It lasted about half an hour, slowly getting worse.

Images: 5 pcs • Comments: 4 pcs

Pearl clouds

6.2.2023 at 08.00 - 08.15 - Kaarina (II)
Matti Helin, Ursa (Länsi-Suomi)

Light streaks in the direction of the sunrise.

Images: 2 pcs • Comments: 1 pcs

Moon

4.2.2023 at 19.50 - 20.26 - Lempäälä (III)
Ari Haavisto, Ursa (Länsi-Suomi)

An almost full Moon assembled into a mosaic. The tenacious cloud veil did not agree to go away, but got stronger as the shooting session progressed, and this mosaic was practically shot through the cloud cover. If the clouds had cleared, the shooting weather could have been good. As the fishermen say; You should have seen the picture that got away... Via the link below, you can view the mosaic in a larger size, 40% of the description scale. Link to the mosaic image

Comments: 2 pcs

A fireball at night, brighter than the venus

4.2.2023 at 23.36 - Jyväskylä (III)
Vesa Vasankari, Ursa (Länsi-Suomi)

With the help of an observation made in Pyhtaa, this fireball was found vertically at a steep angle from my camera pointing up into the southeast sky.

Comments: 2 pcs

Several halo forms

5.2.2023 at 04.00 - 05.00 - Hämeenlinna (II)
Pirjo Iivonen

After four in the morning, an incredibly beautiful circle of the moon was visible in the sky. I cut out the neighboring house from the main picture. The ring is also clearly visible in the picture where the garage is in the foreground and the moon is behind the fir tree.

Images: 2 pcs • Comments: 1 pcs