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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.

A fireball at night, as bright as a full moon

10.9.2013 at 02.06 - Varkaus (V)
Veli-Pekka Hentunen, Warkauden Kassiopeia

Last night 10.9. at 02.06 an exceptionally strong fireball flashed above the Härkämäki observatory. Its brightness was in the order of a full moon. Seen from Härkämäki, the object exploded to the south at an altitude of about 45 degrees in the constellation of Pisces. The target arrived from the direction of the constellation of Perseus and left a tread about 30 degrees long before the explosion. There was still a large cloud of smoke in the sky for about 25 minutes. In the pictures taken by Ursa from Mikkeli, the same fireball can be seen in the north direction, behind Otava! The target has p...

Images: 2 pcs • Comments: 5 pcs

A fireball at night, brighter than a full moon

22.12.2017 at 20.06 - Varkaus (V)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was clearly in the image of the Härkämäki Observatory's sky camera, even though the sky was cloudy throughout. Only the brightest stars were faintly visible in the sky. The fireball began to appear about 30 degrees above the horizon and brightened very strongly right on the horizon.

Comments: 11 pcs

Binocular comet Wirtanen

3.1.2019 at 18.02 - Kangaslampi (V)
Esa Heikkinen, Anni Heikkinen, Veli-Pekka Hentunen, Warkauden Kassiopeia

Outgoing Wirtanen photographed with a CCD and digital wit. In the second CCD image, the stretch of the image is knocked out as much as possible so that the entire comet material becomes widely visible. Wirtanen fills almost the entire field of view, thus being at least 20 arc minutes in size and perhaps slightly egg-shaped, so the tail could be right downward. CCD images are 18 'x 23' in size. Illustrated by Anni and Esa Heikkinen, processing of CCD images Veli-Pekka Hentunen.

Images: 3 pcs

A fireball at night, as bright as a cresent moon

6.2.2015 at 21.23 - Varkaus (IV)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was found in the pictures of the Härkämäki sky camera. The photos were processed by Jari Juutilainen.

A fireball at night, as bright as a cresent moon

13.4.2016 at 03.29 - Varkaus (IV)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was very clear in the sky camera of the Härkämäki observatory, even though the sky was covered with thin clouds. The exposure of the celestial camera had started at 3:29:10. The exposure time was 30 seconds.

A fireball at night, as bright as a cresent moon

26.2.2017 at 19.37 - 19.38 - Varkaus (IV)
Veli-Pekka Hentunen, Warkauden Kassiopeia

A fireball was detected from the sky camera image of the Härkämäki observatory.

A fireball at night, as bright as a cresent moon

20.2.2020 at 03.35 - Varkaus (IV)
Veli-Pekka Hentunen, Warkauden Kassiopeia

A very bright fireball had been left in the picture of the Härkämäki observatory's sky camera on February 20, 2020 at 03:35.

Comments: 2 pcs

Partial solar eclipse

10.6.2021 at 12.55 - 15.19 - Varkaus, Kangaslampi (IV)
Esa Heikkinen, Anni Heikkinen, Veli-Pekka Hentunen, Warkauden Kassiopeia

The shooting equipment is Lunt H-alpha 60 + Paramount ME, operated by Esa Heikkinen and Veli-Pekka Hentunen and Meade LXD55 EMC + Astrosolar membrane, operated by Anni Heikkinen. In the video, a changing burst on the right side of the sun.

Images: 4 pcs • Comments: 1 pcs

Binocular comet Giacobini-Zinner

28.8.2018 at 23.00 - 23.45 - Varkaus (IV)
Veli-Pekka Hentunen, Warkauden Kassiopeia

Härkämäki Observatory's Meade16 "ACF and SBIG STT-8300M CCD camera, 0.67 focal Reducer, total image 80x40s L exposures. Pictured north top, east left. Image field size 15'x15 '.

Comments: 1 pcs

Telescopic comet Swift-Gehrels

3.1.2019 at 18.53 - Kangaslampi (IV)
Esa Heikkinen, Anni Heikkinen, Veli-Pekka Hentunen, Warkauden Kassiopeia

Another comet 64P / Swift-Gehrels was also filmed as a short clear section on Thursday night. 10 of these were taken. a series of 120-second L exposures, no more weather would have been enough. Like Wirtanen, this comet also appeared quite large, about 10 minutes of arc. The picture clearly shows maybe two very close jets of material to the left, slightly downhill. Image size 18 'x 23'. Photographers Anni and Esa Heikkinen and image processing Veli-Pekka Hentunen

Images: 2 pcs

Binocular comet Leonard

4.12.2021 at 05.17 - 05.26 - Varkaus (IV)
Veli-Pekka Hentunen, Warkauden Kassiopeia

I photographed the comet C / 2021 A1 (Leonard) with the Meade 16 "ACF telescope of the Härkämäki observatory and the ASI 2600 MM pro camera. The images came with a total of 16x60 s L-filters.

A fireball at night, brigter than the venus

10.9.2013 at 03.29 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The object came from the direction of the constellation of Perseids and caught fire in the constellation of Hercules. The fireball remained allsky in the camera images for a few minutes as smoke.

Comments: 2 pcs

A fireball at night, brigter than the venus

28.3.2016 at 21.45 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was visible in the sky camera image of the Härkämäki observatory.

Comments: 2 pcs

A fireball at night, brigter than the venus

14.4.2019 at 22.50 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

A possible fireball was left in the picture of the Härkämäen observatory sky camera on Sun 14.4. at 22:50.

A fireball at night, brigter than the venus

14.4.2019 at 23.47 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

A possible fireball in the sky camera image of the Härkämäki observatory.

A fireball at night, brigter than the venus

17.4.2019 at 00.43 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

Possible fireball in the sky camera image of the Härkämäki observatory on April 17, 2019 at 00:43. The bright satellites, according to Heaves Above, did not hit at the same time and in the same place in the sky.

A fireball at night, brigter than the venus

20.4.2019 at 23.31 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

A possible fireball in the sky camera image of the Härkämäki observatory. The bright satellites have been checked on the Heavens-Above website.

Comments: 1 pcs

A fireball at night, brigter than the venus

16.3.2020 at 23.42 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was visible in the Härkämäki observatory's sky camera image in the low northern sky.

A fireball at night, brigter than the venus

21.3.2020 at 20.54 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was seen in the sky camera image of the Härkämäki observatory in the northeastern sky near the horizon (picture below).

Comments: 1 pcs

A fireball at night, brigter than the venus

22.4.2020 at 00.34 - Varkaus (III)
Veli-Pekka Hentunen, Warkauden Kassiopeia

The fireball was visible in the image of the Härkämäki Observatory's Oculus sky camera. Image start time 00.34.10, shutter speed 45 seconds. The fireball has left a long and bright line of light in the picture.

Search result contains observations from time period 1.1.2000 klo 00.00 - 22.5.2022 klo 8.04.