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

Ursa Astronomical Association

4 observations and 0 comments in queue.

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

Transit of mercury

11.11.2019 at 16.30 - 16.31 - Anaga, Kanariansaaret, Espanja (IV)
Dennis Lehtonen, Ursa (Helsinki)

In Finland, I would not have seen this because of the clouds, but because it is a relatively rare event, I decided to rent a remote solar tube from Tenerife.

Comments: 3 pcs

2802 Weisell

8.9.2019 at 02.46 - 00.03 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Janne Peltonen, Dennis Lehtonen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

2802 Weisell (1939 BU, 1945 GA, 1951 KZ, 1952 OT, 1962 JO, 1969 RQ, 1975 VB6.1977 AL, 1978 GM2.1983 CZ1) The asteroid on the outer edge of the main zone was imaged on the second night of the September DS9 days. Finland The target of our 100 projects is 175. The asteroid was discovered by Yrjö Väisälä on January 19, 1939 in Iso-Heikkilä, Turku. The asteroid is named after the Weisell genus, whose current name is Väisälä. Quote from the Finnish Physics Society's 70th anniversary blog, text Tiera Laitinen "On JV Snellman's 100th anniversary on May 12, 1906, together with tens of thousands...

Images: 3 pcs

2067 Aksnes

8.9.2019 at 02.23 - 02.42 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Janne Peltonen, Dennis Lehtonen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

2067 Aksnes (1936 DD, 1951 AG, 1965 UV, 1971 QH2,1973 UR2.1975 BD1) The asteroid on the outer edge of the main zone was imaged on the second night of the September DS9 days. Finland 100 is the target of our project 172. The asteroid of the 3: 2 resonance of the Hilda family was discovered by Yrjö Väisälä on December 28, 1940 in Iso-Heikkilä, Turku. Hilda and Schubart (1911) on the family of asteroids, Wikipedia https://en.wikipedia.org/wiki/Hilda_asteroid . The asteroid is named after the Norwegian astronomer Kaare Aksnees. Academician Professor Kaare Aksnes of the Norwegian Academy has been i...

Images: 3 pcs

2243 Lonnrot

8.9.2019 at 02.00 - 02.19 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Janne Peltonen, Dennis Lehtonen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

2243 Lonnrot (1941 SA1,1931 VB, 1934 NQ, 1951 QH, 1951 RQ1,1951 SF, 1961 OB) The asteroid at the inner edge of the main zone was imaged on the second night of the September DS9 days. Finland 100 target of our project 173. The asteroid of the Flora family was discovered by Yrjö Väisälä on September 25, 1941 in Iso-Heikkilä, Turku. The asteroid got its name from the Finnish medical scientist Elias Lönroth (1802-1884). Lönroth was known especially for assembling the Finnish national epic Kalevala and Kanteletar, source Wikipedia https://fi.wikipedia.org/wiki/Elias_Lönnrot . Lönnrot also wrote the...

Images: 3 pcs

2512 Tavastia

8.9.2019 at 01.38 - 01.57 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Janne Peltonen, Dennis Lehtonen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

2512 Tavastia (1940 GG, 1943 DN, 1965 UC2.1965 VF, 1965 WY, 1970 ER, 1972 XC1.1975 VP2.1977 FW) The asteroid on the inner edge of the main zone was imaged on the second night of the September 2019 DS days. Finland 100 project target 174. The asteroid of the Flora family was discovered by Yrjö Väisälä on April 3, 1940 in Iso-Heikkilä, Turku. The asteroid is named after the historic province of Häme, source Wikipedia https://en.wikipedia.org/wiki/Tavastia_(historical_province) . Same as English https://en.wikipedia.org/wiki/Häme . The size of the asteroid is 7.54km and the rotation speed is 7.29...

Images: 3 pcs

1659 Punkaharju

8.9.2019 at 01.18 - 01.33 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Janne Peltonen, Dennis Lehtonen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

1659 Punkaharju (1940 YL, 1930 QB, 1937 EB, 1944 RE, 1951 EG, 1953 NH, 1957 KO, 1958 TS1) The asteroid on the outer edge of the main zone was photographed on the second night of the September DS9 days. Finland 100 target of our project 171. The asteroid of the Postrema (1484) family was discovered by Yrjö Väisälä on December 28, 1940 in Iso-Heikkilä, Turku. The asteroid got its name from the municipality of Punkaharju in the province of Southern Savonia, which was connected in 2013 to the city of Savonlinna. Punkaharju is famous for its beautiful ridges northwest of Salpausselä, source Wikiped...

Images: 3 pcs

Milky way

8.9.2019 at 01.00 - 01.01 - Orimattila, Artjärvi (III)
Dennis Lehtonen, Ursa (Helsinki)

On my smartphone, I tried to photograph the Milky Way again while participating in the annual DS event in Artjärvi. Attached is a raw image and a processed version.

Images: 2 pcs

1541 Estonia

8.9.2019 at 00.44 - 01.03 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Janne Peltonen, Dennis Lehtonen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

1541 Estonia (1939 CK, 1930 FE, 1930 FV, 1950 RG1,1950 SR, 1959 RF1, A916 GE, A923 VE) The central zone asteroid was imaged on the second night of the September 2019 DS days. Finland 100 is the target of our project 170. The asteroid was discovered by Yrjö Väisälä on February 12, 1939 in Iso-Heikkilä, Turku. The asteroid got its name from Estonia, which means the Republic of Estonia in Finnish, about 80 km south of the Gulf of Finland, source Wikipedia https://en.wikipedia.org/wiki/Virus . Other meanings of Estonia, M / S Estonia car ferry sunk in 1994, Gustaf Erikson's sailing ship Estoni...

Images: 3 pcs

1525 Savonlinna

7.9.2019 at 02.59 - 03.18 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Dennis Lehtonen, Christos Oscar Kambiselis, Rauno Päivinen, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

1525 Savonlinna (1939 SC, 1930 SE) The asteroid in the central zone of the main zone was photographed on the first night of the September DS9 days. Finland 166. The asteroid was discovered by Yrjö Väisälä on September 18, 1939 in Iso-Heikkilä, Turku. 1525 Savonlinna (1939 SC) and 1524 Joensuu (1939 SB) were discovered the same night! The asteroid is named after the city of Savonlinna in the province of Southern Savonia. "The city of Savonlinna originated from the settlement of the West Bank of Kyrönsalmi next to Olavinlinna, founded in 1475," quoted from Wikipedia https://en.wikipedia.org/wiki...

Images: 3 pcs

1527 Malmquista

7.9.2019 at 02.36 - 02.55 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Dennis Lehtonen, Christos Oscar Kambiselis, Rauno Päivinen, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

1527 Malmquista (1939 UG, 1929 TG, 1932 OB, 1972 TK, A909 TC) The asteroid at the inner edge of the main zone was imaged on the first night of the September 2019 DS days. Finland 100 The target of our project is 167. The asteroid of the Flora family was discovered by Yrjö Väisälä on October 18, 1939 in Iso-Heikkilä, Turku. The asteroid is named after the Swedish astronomer Karl Gunnar Malmquist. Professor Gunnar Malmquist of the Uppsala Astronomical Observatory, together with Åke Wallenquist, procured a large Schmidt telescope for the Kvistaberg Observatory, source Wikipedia https://en.wikiped...

Images: 3 pcs

3281 Maupertuis

7.9.2019 at 02.13 - 02.32 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Dennis Lehtonen, Christos Oscar Kambiselis, Rauno Päivinen, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

3281 Maupertuis (1938 DZ, 1961 TP, 1970 AP, 1979 TV) The asteroid on the inner edge of the main zone was photographed on the first night of the September 2019 DS days. Finland 100 is the target of our project 169. The asteroid of the Vesta family was discovered by Yrjö Väisälä on February 24, 1938 in Iso-Heikkilä, Turku. The asteroid is named after the French mathematician astronomer Pierre Louis Maupertuis (1698-1759). Maupertuis was a versatile scientist in his work encompassing Mathematics, Physics, Biology, Metaphysics, Moral Philosophy, Astronomy, Geography, Source Wikipedia https://en.wi...

Images: 3 pcs

1463 Nordenmarkia

7.9.2019 at 01.26 - 01.45 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Dennis Lehtonen, Christos Oscar Kambiselis, Rauno Päivinen, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

1463 Nordenmark (1938 CB, 1925 UB, 1925 WJ, 1927 DC, 1930 QE, 1938 EE, 1950 FD) The asteroid on the outer edge of the main zone was imaged on the first night of the September 2019 DS days. Finland 164. The asteroid was discovered by Yrjö Väisälä on February 6, 1938 in Iso-Heikkilä, Turku. The asteroid is named after the Swedish astronomer Nils Viktor Emanuel Nordenmark (1867-1962). He did his dissertation in 1895 on celestial mechanics and asteroids. Nils Nordenmark is best known for the Swedish translation of Camille Flammarion's Astronomie Populair, as well as several biographies of Swed...

Images: 3 pcs

Saturn

28.8.2019 at 03.00 - 04.00 - Ovalle, Chile (IV)
Dennis Lehtonen, Ursa (Helsinki)

I rented a degree-larger telescope for an hour and described the planets. Pretty crappy seeing, but something was left on the cell. Here’s a Saturn ASI174MM camera in infrared light.

Comments: 1 pcs

Milky way

10.8.2019 at 01.40 - 01.41 - Orimattila (II)
Dennis Lehtonen, Ursa (Helsinki)

I tried to shoot from the starry sky with my new smartphone. The sky was not very dark and there were some clouds on the horizon, but at least the trail pleased itself. The image is a single image of a Huawei p30 pro phone. Exposure time 20 seconds and ISO 1600.

Comments: 3 pcs

3606 Pohjola

10.8.2019 at 00.49 - 01.09 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Dennis Lehtonen, Christos Oscar Kambiselis, Rauno Päivinen, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

3606 North (1939 SF, 1973 WO, 1985 LE) The asteroid in the central zone of the main zone was photographed on the first night of the August 2009 troops. Finland 161. The asteroid was discovered by Yrjö Väisälä on September 19, 1939 in Iso-Heikkilä, Turku. The asteroid is named after the Finnish mythology from the North of the Kalevala. In the Kalevala, the North is described as a cold and evil place ruled by Pohjanakka, with the help of its Ostrobothnians and spells. Source Wikipedia https://en.wikipedia.org/wiki/Pohjola_(Kalevala) . More detailed characterization also at https://en.wikipedia.o...

Images: 3 pcs

Telescopic comet Africano

10.8.2019 at 00.24 - 00.43 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Dennis Lehtonen, Christos Oscar Kambiselis, Rauno Päivinen, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

C / 2018 W2 (Africano) The comet was filmed on the first night of August 2019. The comet was discovered by BM Africano on November 27, 2018 in the Mount Lemmon Survey G96 exploration program as a 20mag target. The comet was photographed at a distance of about 1.5au and brightens and approaches the earth closest to the beginning of October at 0.5au. 1Picture. average stack (Average) by comet. 2Picture. average stack by stars. 3Picture. first picture measured, 2019-08-09T 21: 24: 28UT 2458705.39199JDUT 04h17m33.82s + 58d27'02.3 "N14.8mag Std Dev 648.365, JPL Horizon 21: 24: 28UT 04h17m32.90s...

Images: 4 pcs

(306381) 1993 RR2

9.8.2019 at 23.46 - 00.05 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Dennis Lehtonen, Christos Oscar Kambiselis, Rauno Päivinen, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

(306381) 1993 RR2 (1993 RR2) The NEO / Mars Crosser asteroid was photographed on the first night of the August 2019 work. The asteroid crossing the orbit of Mars was discovered by Eleanor Francis "Glo" Hel on September 14, 1993 (code 675 Palomar Mountain) at the Palomar Observatory. Eleanor Helin has found a total of 903 asteroids and 4 comets, source Wikipedia https://en.wikipedia.org/wiki/Eleanor_F ._Helin . The total estimate of 3.2km is not known for rotational speed or spectrum. When we photographed, it was 0.363au from the ground and came on 15.08.2019 to 0.361au. On the planet Mars, it ...

Images: 3 pcs

Saturn

20.7.2019 at 01.20 - 01.21 - Helsinki (III)
Dennis Lehtonen, Ursa (Helsinki)

The night spent in the observatory came again as a change. At the same time, I showed a few passers-by the moon, Saturn, and Jupiter, and it was their first time to observe those objects through a telescope. There were several videos of Saturn left at home. I selected the best and stacked the best frames of the video (40pcs) with a program called Lynkeos into one image. Here is the end result. The planet is currently only seven degrees high and therefore it is difficult to get any detail into the images due to the effect of the atmosphere. The image of Saturn is an infrared image taken with th...

Comments: 1 pcs

(137170) 1999 HF1

7.4.2019 at 00.08 - 00.28 - Orimattila, Artjärvi, Tähtikallio (IV)
Kari Laihia, Dennis Lehtonen, Olli-Pekka Joronen, Christos Oscar Kambiselis, Veikko Mäkelä, Hannu Määttänen, Porin Karhunvartijat

(137170) 1999 HF1 (1999 HF1) The ATEN / NEO Earth-Venus crosser was filmed on the second night of the April 2019 Device Days. The dual asteroid was discovered by the Lowell Anderson Mesa Observatory's LONEOS exploration program on April 20, 1999. Venus and Earth are playing celestial ping-pong with this duplicate. 1999 The HF1 asteroid is the second largest ATEN asteroid, with a size of 3.73km and a moon of about 800m. Rotation time 2.3192h, spectrum class SMASSII spec_B => X. 1Picture. first image measured, 2019-04-06T 21: 08: 39UT 2458580.38100JDUT 05h16m11.62s + 55d17'34.9 "15.3mag ...

Images: 3 pcs

Telescopic comet Wirtanen

6.4.2019 at 23.19 - 23.38 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Dennis Lehtonen, Olli-Pekka Joronen, Christos Oscar Kambiselis, Veikko Mäkelä, Hannu Määttänen, Porin Karhunvartijat

The 46P / Wirtanen comet was filmed on the second night of the April 2019 Equipment Days. The comet of the Jupiter family was discovered by the American astronomer Carl Wirtanen at the Lick Observatory on January 15, 1948. We last photographed the asteroid in January at https://www.taivaanvahti.fi/observations/show/80890 . The comet is already much dimmed to its maximum, filming it was 1.0au away. 1Picture. Average stack by comet, small coma asymmetric. 2Picture. the sum image of the stack stacked according to the stars, the motion is reflected as the stretching of the stars. 3Picture. first i...

Images: 4 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 11.11.2019 klo 21.37.