Newest observations
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Akaa, Light pillars
II
4.10.2023 at 21.00 -
Lappeenranta, One halo form
I
4.10.2023 at 17.00 -
Kurikka, Sun
III
4.10.2023 at 15.07 -
Kangasala, One halo form
I
4.10.2023 at 11.36 -
Saarijärvi, One halo form
I
4.10.2023 at 10.52 -
Kangasala, One halo form
I
3.10.2023 at 15.57 -
Kurikka, One halo form
I
3.10.2023 at 15.06 -
Järvenpää, One halo form
I
3.10.2023 at 11.00 -
Porvoo, Sondby, One halo form
I
3.10.2023 at 09.57 -
Turku, One halo form
I
3.10.2023 at 05.40 -
Kurikka, One halo form
I
2.10.2023 at 15.05 -
Kannonkoski, Bishop's ring
II
2.10.2023 at 14.57
Contact information
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Only observations that have a description and at least one image attached.
4.2.2023 at 19.45 - 20.00 - Kirkkonummi
(III)
Tuomas Salo, Teemu Willamo, Mikael Turkki, Ursa (Helsinki)
We imaged comet C/2022 E3 at the University of Helsinki observatory using 2-minute and 10-minute exposures.
Images: 2 pcs
M81
16.3.2022 at 23.30 - 23.50 - Kirkkonummi
(IV)
Tuomas Salo, Mikael Turkki, Einari Toivonen, Teemu Willamo, Ursa (Helsinki)
We photographed the Galaxy M81 at the University of Helsinki Observatory. The M81 is estimated to be about 11.8 million light-years away. The image has been stacked from three images with IRAF and further processed with Matlab
Images: 2 pcs
Supernova AT2022eni
16.3.2022 at 21.00 - Kirkkonummi
(II)
Tuomas Salo, Mikael Turkki, Einari Toivonen, Teemu Willamo, Ursa (Helsinki)
At the University of Helsinki Observatory in Metsähovi, we photographed my supernova AT2022, which was found by the ATLAS survey on March 7. and estimates the magnitude on 18.9. The supernova and / or its host galaxy stand out in a circle.
One halo form
6.7.2021 at 13.15 - 13.45 - Kuhmo
(I)
Teemu Willamo, Ursa (Helsinki)
In Viuhimo, Kuhmo, a fine 22-degree ring was visible all around the Sun. At least half an hour was visible. Attached is some sort of cell phone camera picture.
Supernova AT 2020wcm
13.10.2020 at 23.00 - Kirkkonummi
(II)
Tuomas Salo, Teemu Willamo, Ursa (Helsinki)
At the University of Helsinki Observatory we photographed a supernova with an estimated magnitude of 18.1, right ascension = 22h 36m 18.292s, declination = + 68 deg 43'25.74 ". The supernova is shown ringed in the picture.
Exoplanet HAT-P-17b
19.9.2020 at 21.00 - 01.00 - Kirkkonummi
(III)
Teemu Willamo, Tuomas Salo, Ursa (Helsinki)
We detected an overflow of the exoplanet HAT-P-17b from the Metsähovi Observatory of the University of Helsinki in Kirkkonummi. The overpass began very soon after dark, so we were in a hurry to find the destination, and we were a few minutes late from the predicted start of the overpass. The figure below shows the brightness of the parent star HAT-P-17 in magnitudes relative to the two reference stars. A clear dimming lasting about 4 hours can be seen as the planet passes in front of the parent star. Some strange throw is also noticeable, which may be due to us focusing the image somewhere new...
Images: 2 pcs
M15
14.10.2019 at 22.00 - 22.10 - Kirkkonummi
(V)
Tuomas Salo, Mikko Vuori, Teemu Willamo
I photographed Pegasus Cluster at the University of Helsinki Observatory at the observation group's observation evening in Metsähovi.
M87
15.4.2019 at 23.00 - Kirkkonummi
(III)
Tuomas Salo, Henri Salmi, Teemu Willamo, Ursa (Helsinki)
We photographed the M87 ellipse galaxy at the Metsähovi Observatory of the University of Helsinki. The picture shows the shower caused by its giant black hole. Radio astronomers described the shadow of a black hole in the center of the galaxy and a photon ring generated by electrons falling into it.
Exoplanet HAT-P-53 b
11.1.2019 at 19.50 - 22.34 - Metsähovi, Kirkkonummi
(I)
Teemu Willamo, Juha Tauriainen, Sami Kivistö, Tuomas Salo, Ilja Pippa, Ursa (Helsinki)
We detected an overflow of the exoplanet HAT-P-53 b from the Metsähovi Observatory of the University of Helsinki. In the figure below, the brightness of the star HAT-P-53 (marked in green in the lower figure) is measured compared to the corresponding reference stars (marked in red). The measurements are noisy but the overpass is just perceptible. Apparently the crossing had started earlier than predicted as it would seem that we were late from the start.
Images: 2 pcs • Comments: 1 pcs
Exoplanet TrES-2 b
10.10.2018 at 20.15 - 22.00 - Kirkkonummi
(II)
Teemu Willamo, Tuomas Salo, Ursa (Helsinki)
An observation from the Metsähovi Observatory of the University of Helsinki about the overflow of the exoplanet TrES-2 b. The orange ticks in the image are single 30 s exposures, and the blue curve averages 5 consecutive exposures. The magnitude is calculated as the average of the two reference stars and normalized so that the average of the first 10 data points is 0. In the CCD image, TrES-2 is the lowest star circled in red. The other two circled stars served as reference stars against which the brightness of the object was compared.
Images: 2 pcs
Supernova AT2018we
3.4.2018 at 22.35 - 23.05 - Kirkkonummi
(II)
Teemu Willamo, Ursa (Helsinki)
Supernova AT2018we is a supernova found by the Gaia space telescope in an unnamed galaxy at coordinates 17: 09: 56.71 +82: 00: 02.92. The brightness of this supernova was measured at the Metsähovi Observatory in Kirkkonummi, University of Helsinki.
Observation news
Observations' comments
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Näyttävästi kraaterit linjassa. Hieno havaint...
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Näyttävät kv-pilarit lokakuulle!
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Timo, minkälainen lisälinssi actionkameraan ?
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Kyllä tässä on ihan otsikonmukainen ilmiö kys...
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En ymmärtänyt,että ne kommentitkin edelliseen...
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Kiitos. Pilvisten ja sateisten kelien väliin ...
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Hieno kuun halo!
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Wau! Kiitos tarkastuksesta :) ilmankos se on...
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Onhan tuo välähdyksen näkeminen melkoista met...
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Ylivoimaisesti pahin ongelma Halostackin kans...
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Kiitos :) Oli ihana yllätys,että pilviä oli v...
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Tosiaan nyt kun sanot niin tuossa vas.yläruud...
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