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

Ursa Astronomical Association

8 observations and 0 comments in queue.

Only observations that have a description and at least one image attached.

Sun

12.7.2022 at 15.16 - 15.28 - Oulu (III)
Pekka Koskinen, Oulun Arktos

Sunspots photographed directly from the focal plane in my backyard.

Moon

7.6.2022 at 23.52 - Kiuruvesi (IV)
Kari Tikkanen, Oulun Arktos

I bought a very small basic camera, the Sony-W830, but as a small eye, it gets surprisingly accurate images through 10x50 binoculars.

Images: 2 pcs

SL-4 RB (47547)

28.2.2022 at 18.49 - Oulu (III)
Kari Kaila, Oulun Arktos

A very low-flying satellite that appeared in the camera's field of view for about 40 seconds. The satellite is the Cosmos 2549, which was launched into orbit just over a year ago. The height of the track was about 190 km !! According to SATVIEW, the satellite is expected to enter the atmosphere tomorrow, March 2, 2022, at approximately 5 pm (+ - 8 hours). Visually, the speed of the satellite was quite high. This was the lowest flying satellite I have ever seen! Tonight the satellite was no longer possible to see and tomorrow it will return to the atmosphere.

A fireball at night, as bright as a crescent moon

28.2.2022 at 21.37 - Oulu (III)
Kari Kaila, Oulun Arktos

A long, slow and bright car flew in the evening sky. The ignition time was 21:37:33 and the flight duration was 6 seconds. The brightness is probably the brightness of the crescent.

Images: 2 pcs • Comments: 1 pcs

A fireball at night, brighter than the venus

13.1.2022 at 17.27 - Oulu (III)
Kari Kaila, Oulun Arktos

A rather slow and rather bright fireball flew in the evening in the eastern sky. The ignition time was 17:27:02 and the flight time was about 5 seconds. The fireball went behind the trees at the end, though it can be seen interspersed with twigs. Exposure times are 2.00 s and images are snapped with a propeller every 0.2 seconds.

Comments: 1 pcs

Pearl clouds

16.12.2021 at 15.50 - 16.10 - Oulu (III)
Kari Kaila, Oulun Arktos

A few pearl clouds were visible in the very shallow west at dusk. There are more clouds near the horizon.

Images: 3 pcs

A fireball at night, brighter than the venus

6.12.2021 at 01.54 - Oulu (III)
Kari Kaila, Oulun Arktos

The weather is very clear and cloudy, mostly cloudy. Although there is high pressure, it does not guarantee the clarity of the weather. When the fireball is bright enough, it doesn’t matter, even if it’s cloudy. Yes, it is visible through the clouds.

A fireball at night, brigter than the venus

11.11.2021 at 00.14 - Oulu (III)
Kari Kaila, Oulun Arktos

The fireball caught fire 00:13:52 and the flight time was almost 3 seconds. Images are snapped with a propeller every 0.2 seconds.

A fireball at night, brigter than the venus

14.11.2021 at 20.31 - Oulu (III)
Kari Kaila, Oulun Arktos

Quite a bright fireball in the very shallow north. Ignition time 20:31:06. The flight lasted a little over a second before disappearing behind the roof.

A fireball at night, brigter than the venus

21.11.2021 at 22.42 - Oulu (III)
Kari Kaila, Oulun Arktos

A bright fireball in the shallow north. Ignition time 22:42:28 and flight time just over 1 second. The propeller snippets the image every 0.2 seconds.

NGC 7000

21.9.2021 at 21.37 - Oulu (III)
Jaakko Asikainen, Oulun Arktos

Viime kauden HaLRGB-opettelu saa nyt jatkoa. Kuvan luminanssi ja punainen kanava on ehostettu kapeakaistaisella vetyalfa-datalla. Vähän tekisi mieli hypätä kokonaan kapeakaistakuvaukseen mutta siinähän on väärät värit ;) Lisätietoja: https://www.astrobin.com/hd87i5/

A fireball at night, brigter than the venus

22.9.2021 at 00.40 - Oulu (III)
Kari Kaila, Oulun Arktos

After midnight, the rather bright car flew westward to Deneb, i.e. Swan, in the zenith. The ignition time was 00:40:20.

Comments: 1 pcs

NGC 6888

11.9.2021 at 22.10 - Oulu (IV)
Jaakko Asikainen, Oulun Arktos

After mostly repairing last season’s equipment breaks, it was nice to get back to the deep sky. Had to go back to manual focusing but it’s really easy (at least even when it’s not cold). I photographed Sickle Mist NGC 6888 to begin the season. After processing, I noticed a wonderfully colored star in the middle of the fog. It is the Wolf-Rayet star WR-136 (https://en.wikipedia.org/wiki/WR_136) which is 600 thousand times brighter than the sun, a star at the end of its life with a special spectrum. https://www.astrobin.com/28uukf/

Partial solar eclipse

10.6.2021 at 12.52 - 15.26 - Kiuruvesi (IV)
Kari Tikkanen, Oulun Arktos

Under the cloud the beginning, between the sight through the gap, into I went 5 km from under a clear sky, and the rest was quite clear. The difference in lighting was surprisingly large for the eyes and the darkened hand did not heat the sun as much as before. The eclipse through the leaves of the tree on the white tray did not appear as well as sickles as I would have expected. But it was visible nonetheless.

Images: 8 pcs

Partial solar eclipse

10.6.2021 at 12.50 - 15.10 - Oulu
Pekka Koskinen, Oulun Arktos

Partial solar eclipse 10.6.21 photographed from my backyard.

Images: 5 pcs

Active aurora band

17.4.2021 at 00.31 - 00.37 - Oulu (III)
Kari Kaila, Oulun Arktos

There were some great northern lights on several nights in mid-April. Attached is the beginning of the northern lights eruption from the night of 16.-17.4. 00: 31-00: 37. Pictures are taken every minute in the direction of zenith. There were strong pulsating northern lights before the eruption, but especially after the eruption until the morning began to lighten. Shutter speeds 1.00 seconds.

Images: 7 pcs

A fireball at night, brigter than the venus

17.3.2021 at 00.35 - Oulu (III)
Kari Kaila, Oulun Arktos

Two bright fireballs went north in the morning. Both were quite slow. They appeared for about 6 seconds. On the same night, there are other observations of a slow fireball in the Sky Watch. Could they have been coming from the same direction? The brightnesses of both were of the same order, estimated at -6 magnitudes. The earlier lit at 00:35:00 and the later at 01:55:00

Images: 2 pcs

A fireball at night, brigter than the venus

4.3.2021 at 00.35 - Oulu (III)
Kari Kaila, Oulun Arktos

A fireball that already has several observations in the Sky Watch. Here's one more. Shutter speeds are 1.00 seconds. The ignition time was 00:35:24.

A fireball at night, brigter than the venus

14.1.2021 at 21.41 - Oulu (III)
Kari Kaila, Oulun Arktos

The output of the meteor camera is a nice looking car. Shutter speeds 1.00 s.

One halo form

5.1.2021 at 14.30 - Tyrnävä (I)
Timo Terho, Oulun Arktos

While driving the car, the phenomenon was visible at sunset.

Images: 3 pcs

Search result contains observations from time period 1.1.2014 klo 00.01 - 15.08.2022 klo 00.24.