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Ursa Astronomical Association

Newest commented observations

Light pillars

4.12.2021 at 18.30 - 20.05 - Turku (II)
Markku Sirén, Ursa (Länsi-Suomi)

We visited the Light Path light art works made by the City of Turku. I grabbed a picture of Vartiovuorenmäki's Blue Atmosphere work in the market square and noticed the artificial light pillars in the background. On the way home a little later I went around through a small hook and grabbed a couple of pictures from Majakkaranta in the direction of Hirvensalo and the harbor.

Images: 3 pcs • Comments: 2 pcs

Rare halos

1.12.2021 at 21.00 - 22.30 - Lahti (IV)
Reima Eresmaa, Ursa (Etelä-Suomi)

Artificial light pillars were visible in many places in the Lahti Urban Area, and I drove around looking for denser ice mist. On the outskirts of Joutjärvi church, the fog was already quite dense and the side lamps with their 3D effects were visible on all the slightly brighter lanterns. I found the best view in the yard of a warehouse building in a nearby industrial area, and there I was quietly focused on filming. The top suns here were the brightest I have ever seen. I took a series of pictures from a few different places so I was also able to vary the height of the light source somewhat. F...

Images: 4 pcs • Comments: 1 pcs

385 Ilmatar

3.12.2021 at 14.24 - Espoo (I)
Kari Helander, Ursa (Helsinki)

385 Ilmatar Asteroid 385 Ilmatar is moving in the constellation of Pisces at this time. The location is a little down from theta Piscium. I noticed it in a few clear evenings in November, when, of course, the moonlight caused harm. As a Finn, I also wanted some pictures of it. The target is named after a Finnish asteroid with a diameter of about 100 km and was discovered in 1894. The camera was my Sky-Watcher tube with a diameter of 254 mm and a focal length of 1200 mm (f / 4.7) in Focus. From the picture, it is easier to identify the Air Force with the help of the Astrometry map application. ...

Comments: 4 pcs

Binocular comet Leonard

3.12.2021 at 04.30 - 05.30 - Janakkala, Tervakoski (IV)
Petri Kuossari, Riihimäen tähtit. yhdistys

Luckily I didn’t believe the weather reports and I put a tube to cool out the night before going to bed. The clock was waking up at four in the morning, a glance out the window and a positive surprise as the stars appeared in the sky. Quick dress and 12 degree frost to align the tube. With Bakhtinov's mask, the Arcturus star is focused and the comet Leonard is bursting from the thrill. Wow that's it now with a wonderfully open ball set M3. I take 1-2 minutes of exposure for about half an hour until I take out the Optolong L-Pro filter and continue for another half hour I was still comp...

Images: 5 pcs • Comments: 3 pcs

A fireball at night, as bright as a full moon

1.12.2021 at 17.06 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was left in the picture taken by the Oculus allsky camera at the Härkämäki observatory.

Comments: 1 pcs

Rare halos

2.12.2021 at 11.30 - 13.30 - Juva (IV)
Petri Martikainen, Ursa (Itä-Suomi)

The almost clear and calm frosty day drove the halo chaser to the outskirts of Hasamäki again in the hope of ice fog. Frost readings varied between 15 and 22 degrees depending on location. At Hasamäki, the scenery was completely obscured, but it seemed that the formation of crystals was weak. The fog was only close to the ground in a layer about 30-35 meters thick, and when the Sun was partly behind the clouds, the halosoot was modest. The icy mist was released by the drone, however, the moderate sub-side suns and the lower sun. There were also basic hugs in the upper clouds. The main picture ...

Images: 7 pcs • Comments: 2 pcs

Light pillars

1.12.2021 at 22.09 - 22.30 - Lahti (II)
Samuli Ikäheimo

A momentary mudslide swept through Lahti, bringing the beautiful artificial light pillars to Orion's friend. Lucky timing for the evening walk. Temperature: -11

Images: 2 pcs • Comments: 2 pcs

Several halo forms

2.12.2021 at 11.45 - 14.33 - Turku (II)
Paula Mattila

Slightly foggy 22r from here on the site in the morning with clearer side sun.

Images: 2 pcs • Comments: 2 pcs

Half-sky auroras

1.12.2021 at 22.00 - 01.30 - Valtimo (IV)
Eero Karvinen

Simply a magnificent sub storm all at once. The main picture shows the red flame sea of the sub-storm expansion phase and below the images in the order of the sub-storm from its expansion. In the last picture, the pulsating northern lights created by the Chorus waves in the morning hours.

Images: 6 pcs • Comments: 1 pcs

A fireball at night, as bright as a full moon

29.11.2021 at 19.24 - Vaala (III)
Jarmo Moilanen, Ursa (Pohjois-Suomi)

For once, it happened in the middle of the field of view of a fireball camera. Admittedly, a thin cloud curtain slightly in front. The video lasts 4.76 seconds. The UFO software gave a brightness of -5.2 magnitude but the brightness was probably closer to full moon. I haven’t really learned to rely on UFOAnalyzer magnitude estimates. This apparently belonged to the northern taurids that came surprisingly down into the atmosphere.

Comments: 1 pcs

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