Contact information

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

Ursa Astronomical Association

2 observations and 0 comments in queue.

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

Pollen corona

30.5.2023 at 15.09 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

After the clouds and rain showers receded, a circle of pine pollen could be seen covering the flagpole of the Sun.

Moon

27.5.2023 at 21.56 - Porvoo, Sondby (IV)
Jorma Koski, Ursa (Helsinki)

Crescent from arm.

Aurora rays

14.5.2023 at 00.38 - 00.47 - Porvoo, Sondby (I)
Jorma Koski, Ursa (Helsinki)

In the low northeast sky, faint rays stood out from the background sky for a moment, which were just barely visible in the pictures. Upon request, I added a picture with a very faint reddish ray from the arrow down. A hardware image is also included. Again there was a record for the aurora borealis in May, my previous July record was on 16 July 2000: https://www.ursa.fi/~koski/aurora/rt000716.html https://www.ursa.fi/~koski/aurora/www_spaceweather_com_20000716.pdf

Images: 2 pcs • Comments: 4 pcs

Quiet aurora arc

9.5.2023 at 00.45 - 01.40 - Porvoo, Sondby (II)
Jorma Koski, Ursa (Helsinki)

There are no longer dark nights on the south coast either, but there was some reposting.

Images: 2 pcs • Comments: 1 pcs

Auroras seen through breaks in the clouds

23.4.2023 at 22.30 - 00.45 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

The play started half an hour before dark. The aurora borealis was visible everywhere in the sky, but the flat, thin layer of clouds started to get in the way and the eye could see only white through it and thick red in the south. Eventually the clouds thickened, even though the meter values were still at their peak. The first picture to the north, the second to the east, the third to the south, the fourth to the zenith, and in the fifth picture thick clouds came from the east to cover the sky-

Images: 5 pcs

Active aurora band

21.4.2023 at 23.33 - 03.47 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

The camera saw the northern lights again almost the entire time it was dark. They were at their brightest at half past two.

A fireball at night, brighter than the venus

19.4.2023 at 00.08 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

The fireball flew a little behind the tree when the camera was snapping aurora pictures-

Images: 2 pcs

Aurora rays

18.4.2023 at 22.55 - 03.07 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

The green was visible almost all the time it was dark in the north. The rays rose high at midnight and at half past three. They did not fit in the image area of the camera's 24mm lens (74°x84°). A delicious spring night without frost.

Images: 3 pcs • Comments: 2 pcs

Moon

28.3.2023 at 20.03 - Helsinki, Jollas (IV)
Jorma Koski, Ursa (Helsinki)

Surprisingly, for a moment, almost a half, growing moon (46%) shone in the cleared sky.

Aurora rays

27.2.2023 at 22.47 - 23.22 - Helsinki, Jollas (III)
Jorma Koski, Ursa (Helsinki)

The aurora borealis could also be seen between the street lamps. A hint of red was also visible.

Images: 2 pcs

Moon

26.2.2023 at 18.12 - Helsinki, Jollas (IV)
Jorma Koski, Ursa (Helsinki)

The 43 percent illuminated Moon shone in the clear sky in the south at an altitude of 50 degrees.

Mirage

11.2.2023 at 11.46 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

The islands of the sea could be seen in the distance with curved arches and stretched beaches.

Moon

4.2.2023 at 21.40 - Helsinki, Jollas (III)
Jorma Koski, Ursa (Helsinki)

When cloud cover prevented the comet shot, I focused on the almost full Moon, which also had a nice ring.

Images: 2 pcs

Moon

26.1.2023 at 19.19 - Helsinki, Jollas (IV)
Jorma Koski, Ursa (Helsinki)

I haven't seen the moon in three weeks because of the clouds. Now it shone with 30% light quite low in the south.

Uranuksen peitto

2.1.2023 at 00.36 - Helsinki, Jollas (IV)
Jorma Koski, Ursa (Helsinki)

As predicted, Uranus was hidden behind the Moon. The weather was clear, we had to move a bit when tree branches threatened to come into view at the last moment when the planet was just about to disappear.

Images: 2 pcs

Moon

28.12.2022 at 17.31 - Helsinki, Jollas (I)
Jorma Koski, Ursa (Helsinki)

After dark in the evening, a 35% illuminated Moon could be seen in the southern sky at an altitude of 20 degrees. It hasn't been an everyday treat this winter. The country house could also be seen with the naked eye, but it was not possible to photograph it in the glow of the street and Christmas lights. Jupiter was visible 12.4 degrees away and 8th magnitude Neptune was hidden 5.6 degrees away.

Moon

12.11.2022 at 22.20 - Helsinki, Jollas (IV)
Jorma Koski, Ursa (Helsinki)

The moon was visible in the clear sky for a long time. Now decreasing and 82% enlightened.

A fireball at night, as bright as a crescent moon

23.10.2022 at 21.39 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

After photographing the northern lights, a bright ball of fire was found in one of my photos. The second picture is the whole shot.

Images: 2 pcs

Active aurora band

23.10.2022 at 19.36 - 05.00 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

The aurora belt came again to Southern Finland, at first the rays rose. The width of the belt was at best 90 degrees. Before midnight, the red streaks were at their best and faded from it to small rays in the morning. The best I've seen of the season were, especially as the Cloudiness here was very little.

Images: 3 pcs

Active aurora band

22.10.2022 at 19.30 - 01.40 - Porvoo, Sondby (III)
Jorma Koski, Ursa (Helsinki)

In the Porvoo archipelago, the eastern sky started to darken already after 19:00, we had to hurry to assemble the filming equipment, the first photo was taken with a mobile phone. The strong arc rose almost to the zenith and the rays could be seen from time to time. In the end, the play was covered in a carpet of clouds.

Images: 5 pcs • Comments: 1 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 2.6.2023 klo 14.06.