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

Ursa Astronomical Association

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

Telescopic comet Faye

7.11.2021 at 00.13 - 00.34 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

4P / (Faye) (P / 1843 W1, P / 1850 W1.1910 e) A comet of the Jupiter family was filmed on the second night of the November work. The comet was discovered by the French astronomer Hervé Auguste Étienne Albans Faye (1814-1902) at the Royal Observatory of Paris on November 23, 1843. The last time we photographed the comet was in August. The size of the comet's core is 3.54km. When filming the comet was 0.999au at a distance and 0.814au at the nearest October 14, 2021. Periheli is September 8, 2021, just inside the Mars orbit. 1Picture The sum of the stack by comet. 2Picture Same stack MaximDL...

Images: 5 pcs • Comments: 4 pcs

3361 Orpheus

6.11.2021 at 23.48 - 00.09 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

3361 Orpheus (1982 HR) The asteroid Apollo NEO / PHA was photographed on the second night of November. The asteroid was discovered by Cilean astronomer Carlos Torres (1929-2011) at the National Astronomical Observatory (Chile) at Cerro El Roble Observatory (805) on April 24, 1982. In addition to asteroids, Carlos Torres has measured the motion of nearby stars and found a total of 37 asteroids, Wikipedia https: // en. wikipedia.org/wiki/Carlos_Torres_(astronomer) . Cerro El Roble Observatory is located on the mountain of the same name about 63km northwest of Santiago, source Wikipedia https://e...

Images: 3 pcs

Telescopic comet Schwassmann-Wachmann

6.11.2021 at 21.43 - 22.04 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

29P / (Schwassmann-Wachmann) The periodic comet of the Jupiter family was filmed on the second night of the November 2021 campaign. Outbreaks sometimes occur in a comet, which is why we have tried to shoot several times. The comet's orbit is outside Jupiter's orbit and will be close to Jupiter 2037 less than 1au away. Discharges may increase the brightness by 1-5 mag. The size of the large comet's core is 60.4km. As of filming, the comet was 5,064 miles away, the closest 4.82au on November 6, 2020. 1Picture The sum of the stack by comet. In the direction of 3 o'clock a separate...

Images: 5 pcs

2004 UE

6.11.2021 at 21.17 - 21.38 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

The asteroid Apollo NEO / PHA was photographed on the second night of November. The asteroid was discovered on 16 November 2004 in the Linear exploration program, the first sighting was made on 12 September (645) in the Apache Point-Sloan Digital Sky Survey. Size estimate 170-380m rotation speed 5.6h and 1mag brightness difference, suggests an elongated shape? The Goldstone Radar Observatory intends to photograph the 2004 EU and also the second one we photographed 3361 Orpheus Apollo 11.11.2021! In Finland, this destination is no longer noticeable, it is on its way south at a rapid pace. When ...

Images: 3 pcs

7354 Ishiguro

6.11.2021 at 20.52 - 21.13 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

The asteroid on the outer edge of the main zone of 7354 Ishiguro (1995 BR1,1976 UE11,1982 VV4,1982 XN4) was photographed on the second night of the November 2021 work. When we photographed the fish spiral galaxy NGC 488, this came into the picture like several other asteroids. The asteroid was discovered by the Japanese amateur astronomer Takao Kobayashi at the Oizumi Observatory on January 27, 1995. The asteroid is named after Masato Ishiguro (b. 1945) of the Japanese ALMA project manager (Atacama Large Millimeter / submillimeter Array). Source IEEE Xplore https://ieeexplore / author / 372836...

Images: 3 pcs

Telescopic comet Helin-Roman-Alu 2

6.11.2021 at 20.28 - 20.49 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

132P / (Helin-Roman-Alu 2) (132P / 1997 N2, 132P / 1989 U1, 1989 XVI, 1989v) The periodic comet of the Jupiter family was filmed on the second night of the November 2021 work. Eleanor F. Helin, B. Roman, and Jeff Alu discovered this comet using a 0.46-meter Schmidt telescope at the Palomar Observatory on October 26, 1989. Source: GARY W. KRONKIN COMETOGRAPHY http://cometography.com/pcomets/132p.html . The comet was in its perihelion on November 13, 2021. When we photographed the comet, the brightest estimate was 14mag. We also photographed the first comet 117P / (Helin-Roman-Alu) of the discov...

Images: 4 pcs

1998 QS52

6.11.2021 at 19.21 - 19.42 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

(16960) 1998 QS52 (1998 QS52) The asteroid Apollo NEO / PHA was photographed on the second night of November. The asteroid was discovered by the LINEAR Socorro Exploration Program, (704 Lincoln Laboratory ETS, New Mexico) on August 25, 1998. This Apollo orbit intersects the orbits of the planets Mercury - Mars and is one of the largest asteroids classified as dangerous. Source Wikipedia https://en.wikipedia.org/wiki/(16960)_1998_QS52 . Total estimate 4.9km and rotation speed 5.789h / r. Spectrum class spec_B => Sq. When photographed, the asteroid was 0.6064au away and the closest on 11/11/2021...

Images: 3 pcs

4660 Nereus

6.11.2021 at 18.59 - 19.16 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

4660 Nereus (1982 DB) The asteroid Apollo NEO / PHA was photographed on the second night of November. The asteroid was discovered by Eleanor Francis "Glo" at the Helin Palomar Observatory (code 675) on February 28, 1982. The asteroid is named after an old man from the Greek mythology (lived in the Aegean Sea). Nereus was the son of Gaia and Pontus, the god of riches hidden in the sea. Source Wikipedia and Paavo Castre's "Ancient Myths" https://en.wikipedia.org/wiki/Nereus . The asteroid Nereus was targeted by the Japanese sonar Hayabusa but was not selected. Source Wikipedia https://en.wik...

Images: 3 pcs

(118569) 2000 GF1

11.4.2021 at 03.04 - 03.25 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

(118569) 2000 GF1 (2000 GF1,1993 KV1) An asteroid crossing Mars was photographed on the second night of the April 2021 campaign. The asteroid was discovered by the LINEAR Socorro (code 704-Lincoln Laboratory ETS, New Mexico) exploration program on April 3, 2000. Total estimate with an asteroid approx. 2.5km. The spectral class is probably S stone, found in the taxonomy list. When photographed, the asteroid was 0.7254au at a distance and 0.725au at its nearest April 14, 2021. 1Picture. First image measured, 2021-04-11T 00: 03: 56UT 2459315.5027314JDUT 13h56m49.24s + 26d37'59.0 "17.463mag St...

Images: 3 pcs

Telescopic comet Siding Spring

11.4.2021 at 02.08 - 02.29 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

162P / (Siding Spring) (2004 TU12) The Jupiter family comet / NEO was filmed on the second night of the April 2021 campaign. The Australian Siding Spring Survey found on 10 October 2004 the Apollo asteroid 2004 TU12. La Cañada Observatory (J87) bulletin on the discovery of the comet http://www.lacanada.es/Docs/162P.htm . Comet 162P has been compared to Jupiter's Trojan comets, due to its small amount of dust and large size. Overall estimate with a core of approx. 12km and a rotational speed of 32,853h / r. When photographing the comet was 2,168au away, the closest it was 0.395au on October...

Images: 3 pcs

Telescopic comet Helin-Roman-Alu

11.4.2021 at 00.51 - 01.12 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

117P / (Helin-Roman-Alu) A comet from the Jupiter family was filmed on the second night of the April 2021 campaign. Quote from GARY W. KRONK'S COMETOGRAPHY: Eleanor F. Helin, Brian P. Roman, and Jeff Alu (Palomar Observatory, California, USA) found this comet in images obtained with a 0.46 m Schmidt telescope in 1989, October 2.42 and 2.44 . They described some condensation as diffuse and estimated the brightness to be 17.5. They confirmed the comet on October 5 and 6. source http://cometography.com/pcomets/117p.html . Gary W. Kronk's great cometography site also has a lot of historica...

Images: 4 pcs

Telescopic comet Boattini

11.4.2021 at 00.16 - 00.47 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

The comet C / 2010 U3 (Boattini) was filmed on the second night of the April 2021 campaign. The comet was first discovered by an Italian astronomer Andrea Boattini from images taken with the Mount Lemmo 1.5 m telescope on 31 October 2010 at 19mag brightness, and at a heliocentric distance r H = 18.4 au. Source of extensive research The Astronomical journal https://iopscience.iop.org/article/10.3847/1538-3881/ab0e09 . We have already photographed this comet from 2016-12-9 from a distance of 8.9096au and 2017-04 -14 as the comet approaches its perihelion. The comet visited the solar system 1.96 ...

Images: 3 pcs • Comments: 2 pcs

Telescopic comet PANSTARRS

10.4.2021 at 23.51 - 00.12 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

The comet C / 2017 K2 (PANSTARRS) was filmed on the second night of the April 2021 campaign. A comet on a hyperbolic orbit was discovered by PANSTARRS (PS1) on May 21, 2017 at a distance of 16.09au. The comet will come to Perihel in December 2022. We have described this comet several times already. Last two months ago. The comet is record-breaking, already very far from the sun, it has been compared to the Hale-Bopp comet in 1997, source Wikipedia https://en.wikipedia.org/wiki/C/2017_K2 . When photographing the comet was 6,500au away, the closest it will be 1.819au July 14, 2022. 1Picture. sta...

Images: 4 pcs

2004 TP1

10.4.2021 at 23.29 - 23.48 - Orimattila, Artjärvi, Tähtikallio (IV)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

The asteroid Apollo / NEO / PHA was photographed on the second night of the April 2021 campaign. The asteroid was discovered by the Lowel Observatory's LONEOS exploration program (699) on October 5, 2004. Overall estimate with asteroid 280m. When photographed, the asteroid was at a distance of 0.0579au and the nearest April 8, 2021 0.05541au. The weather was excellent during filming, filming began during astronomical twilight. The start of shooting 5X60s and finally the sum of 20X30s shows the interval between shots. 1Picture. First image measured, 2021-04-10T 20: 29: 31UT 2459315.35383JDU...

Images: 3 pcs

(142464) 2002 TC9

10.4.2021 at 23.02 - 23.26 - Orimattila, Artjärvi, Tähtikallio (IV)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

(142464) 2002 TC9 (2002 TC9) The Amor / NEO asteroid was photographed on the second night of the April 2021 campaign. The asteroid was discovered by the LINEAR Socorro (code 704-Lincoln Laboratory ETS, New Mexico) exploration program on October 2, 2002. The size of the asteroid is 0.88km and the rotation speed is 2.320h / r. When photographed, the asteroid was 0.1347au at a distance and 0.1333au at the nearest April 6, 2021. The weather was excellent during the shooting, although the shooting took place during the astronomical twilight. 1Picture. First image measured, 2021-04-10T 20: 02: 37UT ...

Images: 3 pcs

NGC 5746

10.4.2021 at 22.37 - Orimattila, Artjärvi, Tähtikallio (IV)
Toni Veikkolainen, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Kari Laihia, Keski-Uudenmaan Altair

This side-by-side galaxy is rightly underestimated. The dust band and central bulge attracted attention, although the impression is more dilute than in the Needle Galaxy NGC 4565.

1382 Gerti

10.4.2021 at 22.10 - 22.31 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

1382 Gerti (1925 BB, 1929 LH, 1933 UL1,1936 QB1) The asteroid at the inner edge of the main zone was photographed on the second night of the April 2021 work. The asteroid was discovered by the German astronomer Karl Wilhelm Reinmuth at the Heidelberg (024-Heidelberg-Konigstuhl) Observatory on January 21, 1925. Karl Reinmuth has found a total of 395 asteroids as well as comets 30P / Reinmuth and 44P / Reinmuth. The asteroid is named after Gertrud Höhne (or Hoehne), secretary of the Astronomisches Rechen Institute in Berlin (Institute for Astronomical Computation). The size of the asteroid is 11...

Images: 3 pcs

306 Unitas

10.4.2021 at 21.56 - 22.07 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

306 Unitas (A891 EA) The asteroid at the inner edge of the main zone was photographed on the second night of the April 2021 work. The asteroid was discovered by an Italian astronomer Elia Filippo Francesco Giuseppe Maria Millosevich at the Roman Observatory (Collegio Romano) on March 1, 1891. Professor Elia Millosevich specializes in orbiting asteroids and comets and has found 2 asteroids, source Wikipedia https://en.wikipedia.org/wiki/Elia_Millosevich . The asteroid is named after the Jesuit astronomer Angelo Secchi from the book "L'Unita Della Forze Fisiche Saggio Di Filosofia Naturale"....

Images: 3 pcs

313 Chaldaea

10.4.2021 at 21.43 - 21.54 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

313 Chaldaea (A891 QB) The asteroid at the inner edge of the main zone was photographed on the second night of the April 2021 work. The asteroid of the Chaldaea family (Salli family) was discovered by Johann Palisa on August 30, 1891 at the Wine Observatory (045) in Austria-Hungary. The asteroid is named after the Chaldean people of ancient Babylon. Source Wikipedia https://en.wikipedia.org/wiki/Chaldea . The size of the asteroid is 71.18km and the rotation speed is 8.392h / r. Spectral type spec_T => C. There is a 3D model https://3d-asteroids.space/asteroids/313-Chaldaea . As described, the ...

Images: 3 pcs

26 Proserpina

10.4.2021 at 21.18 - 21.23 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Eero Koivula, Juha Blad, Olli-Pekka Joronen, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

26 Proserpina (A853 JA, 1935 MM, 1954 WD1) The asteroid in the central zone of the main zone was photographed on the second night of the April 2021 work. The asteroid was discovered by Robert Luther at the Bilk Observatory in Düsseldorf on May 5, 1853, the observatory was originally private and was destroyed by bombing in 1943. The observation instrument was a 1800mm focal length lens tube. The asteroid is named after the wine and grain of Roman mythology by the goddess Proserpina, who was the daughter of Ceres. Source Wikipedia https://en.wikipedia.org/wiki/Proserpina . Assemble an asteroid t...

Images: 3 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 3.12.2021 klo 12.29.