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

Ursa Astronomical Association

1 observations and 2 comments in queue.

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

All-sky aurora

22.10.2022 at 18.56 - 23.12 - Orimattila, Artjärvi, Tähtikallio (IV)
Veikko Mäkelä, Tuija Teitto, Juha Blad, Kari Laihia, Ursa (Helsinki)

An interesting play, unfortunately very cloudy after the beginning. recorded with an all-sky camera. Before 20:00 we (Veikko, Juha and Tuija) went to visually follow the repos in the north. Toni Veikkolainen filmed and reported himself. Kari was the first to notice the flares from the all-sky camera while photographing asteroids. At 18:56 The first storms to the north-east into the dim sky. 18:56-19:11: First wave. A greenish arch rises from the northeast, a reddish repo to the front at 7:04 p.m., also progresses to the southwest. At 19:08 the green passes the red, the red sharpens and branche...

Images: 8 pcs

NGC 1501

25.9.2022 at 01.43 - Orimattila, Artjärvi, Tähtikallio (I)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

The planetary nebula previously depicted in black and white on Tähtikalli gained color on the surface. The structures surrounding the central star were now more distinct.

NGC 7354

25.9.2022 at 01.17 - Orimattila, Artjärvi, Tähtikallio (III)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

This time, the shooting target was a tiny planetary nebula, with which a dark nebula could also fit in the same field.

NGC 1961

25.9.2022 at 00.51 - Orimattila, Artjärvi, Tähtikallio (I)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

The not very brilliant but clearly distinguishable spiral galaxy is in the same field with several other galaxies.

NGC 520

24.9.2022 at 23.58 - Orimattila, Artjärvi, Tähtikallio (I)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

Along with the antenna galaxies NGC 4038 and 4039, there are other interesting colliding galaxies visible in the sky. These galaxies obey only one designation.

(105140) 2000 NL10

24.9.2022 at 23.38 - 23.54 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

(105140) 2000 NL10 (2000 NL10) Aten NEO asteroid imaged on the second night of the 2022 September talcos. The asteroid was discovered by the Linear Socorro Discovery Program (704 – Lincoln Laboratory ETS, New Mexico) on July 10, 2000. The asteroid has a size of 1.94 km and a rotation speed of 6.9269 h/r. When photographed, the asteroid was at a distance of 0.6915au and at its closest on November 15, 2022 at 0.554au. 1Fig. first image of the series L30s measured, 2022-09-24T 20:38:11UT 2459847.35984JDUT 20h34m21.24s +59d05'05.7" 17.586mag Std Dev 48.340 SNR7.446 FWHM4.129" ,JPL Horizon 20:3...

Images: 3 pcs

NGC 6813

24.9.2022 at 22.39 - Orimattila, Artjärvi, Tähtikallio (III)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

This emission nebula is erroneously claimed in some sources to be a planetary nebula. The object's otherwise uniform shape seemed to be broken by a dark area on the side.

(523823) 2015 BG311

24.9.2022 at 22.29 - 22.35 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Christos Oscar Kambiselis, Jani Katava, Toni Veikkolainen, Porin Karhunvartijat

(523823) 2015 BG311 (2015 BG311) The asteroid Cupid NEO was imaged on the second night of the 2022 September talcos. The asteroid was discovered by the Haleakala observatory of the Pan-STARRS research program (F51 – Pan-STARRS 1, Haleakala) on November 29, 2014. The estimated size is approx. 740m. At the time of imaging, the asteroid was at a distance of 0.1936au and at its closest on October 15, 2022 at 0.16792au. 1Fig. first image of the series L15s measured, 2022-09-24T 19:29:02UT 2459847.31182JDUT 20h11m37.75s +12d06'19.2" 16.647mag Std Dev 37.255 SNR7.859 FWHM5.576" ,JPL Horizon 20:11...

Images: 3 pcs

NGC 7027

24.9.2022 at 22.20 - Orimattila, Artjärvi, Tähtikallio (III)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

This very small and dense almost star-like planetary nebula could not be photographed with long single exposures.

NGC 7217

24.9.2022 at 21.57 - Orimattila, Artjärvi, Tähtikallio (III)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

This time, a spiral galaxy visible from above was observed, the dense spiral structure of which mostly only a diffuse disk was visible.

(38042) 1998 SA10

24.9.2022 at 21.40 - 21.47 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Christos Oscar Kambiselis, Toni Veikkolainen, Porin Karhunvartijat

(38042) 1998 SA10 (1998 SA10,1997 GV22) Outer main belt asteroid imaged on the second night of the 2022 September talcos. The Pallas family asteroid was discovered by the Catalina Sky Survey (CSS; obs. code: 703) exploration program at the Steward Observatory's Catalina Station on September 21, 1998. The CSS search program has found a total of 25602 asteroids. The size of the asteroid is 12.06 km. When photographing, the asteroid was at a distance of 1.6395au and at its closest on August 22, 2022 at 1.561au. 1Fig. first image of the series L30s measured, 2022-09-24T 18:40:42UT 2459847.2782...

Images: 3 pcs

Telescopic comet ZTF

4.9.2022 at 03.18 - 03.37 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Toni Veikkolainen, Porin Karhunvartijat

Comet C/2020 V2 (ZTF) was imaged on the second evening of the 2022 DS days. A comet on a hyperbolic orbit was discovered by the Palomar Mountain ZTF Variable Object Discovery Program (I41 Palomar Mountain ZTF) on 2020 November 2. The Zwicky Transient Facility (ZTF) is a wide-field search program for supernovae and other rapidly changing objects based on the Samuel Oschin telescope, a 48" Schmidt telescope and a wide-field camera. The perihelion comet will arrive on 2023-05-08 2.235au from the sun. When photographing the comet, it was 4.1364au away in Ursa Major, it will be closest to 1.855au o...

Images: 3 pcs

Telescopic comet ZTF

3.9.2022 at 23.09 - 23.30 - Orimattila, Artjärvi, Tähtikallio (IV)
Kari Laihia, Toni Veikkolainen, Veikko Mäkelä, Porin Karhunvartijat

C/2022 E3 (ZTF) A comet on a hyperbolic orbit was discovered by the Palomar Mountain ZTF variable object search program (I41 Palomar Mountain ZTF) on 2022 March 2. The Zwicky Transient Facility (ZTF) is a wide-field search program for supernovae and other rapidly changing objects, based on the Samuel Oschin telescope, a 48" Schmidt telescope and a wide-field camera. The comet will enter perihelion on January 12, 2023. 1.11au from the sun. When filming, the comet was 2.1944au away in Lyra, the closest it will be 0.29au on February 2, 2023. The comet will be at its brightest at the end of Januar...

Images: 5 pcs

(2926) Caldeira

3.9.2022 at 03.16 - 03.37 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Toni Veikkolainen, Porin Karhunvartijat

(2926) Caldeira (1942 FL,1980 KG) A main belt inner rim asteroid imaged on the first evening of the 2022 DS days. While photographing the Peculiar Galaxy NGC 660 in Pisces, this object came into the picture. The Flora family asteroid was discovered by the Belgian astronomer Henri Debehogne (1928–2007) in Chile at the ESO La Silla observatory on May 22, 1980. Henri Debehogne has discovered more than 700 (727) asteroids in total. The first observations of this have been made in Turku as early as 1942 03 20.91612 (062-Turku). The asteroid is named after the Brazilian astronomer JFC Caldeira. The ...

Images: 3 pcs

(20971) 1981 DR1

2.9.2022 at 22.23 - 23.17 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Toni Veikkolainen, Porin Karhunvartijat

(20971) 1981 DR1 (1981 DR1) A central main belt asteroid imaged on the first evening of 2022 DS days. When photographing Aquarius NGC 6772 bipolar planetary 12mag nebula, this object came into the picture. The Eunomia family asteroid was discovered by the American astronomer Schelte John "Bobby" Bus (b.1956) at the Australian Siding Spring Observatory on February 28, 1981. Bobby Bus has discovered a total of 1683 asteroids and comet 87P/Bus. Source Wikipedia https://en.wikipedia.org/wiki/Schelte_J._Bus . The size of the small asteroid is 3.73 km. Spectral class S according to the family. When ...

Images: 3 pcs • Comments: 2 pcs

(50734) 2000 EP153

2.9.2022 at 22.22 - 23.16 - Orimattila, Artjärvi, Tähtikallio (I)
Kari Laihia, Toni Veikkolainen, Porin Karhunvartijat

(50734) 2000 EP153 (2000 EP153) A mid-main belt asteroid imaged on the first evening of the 2022 DS days. When photographing Aquarius NGC 6772 bipolar planetary 12mag nebula, this object came into the picture. A Maria family asteroid was discovered by the NEAT discovery program at the Haleakala (608 – Haleakala-AMOS) observatory on March 6, 2000. The size of the small-sized asteroid is 3.06 km and the rotation speed is 7.972 h/r. Spectral class S according to the family. When photographing, the asteroid was at a distance of 1.5417au and at its closest on July 23, 2022 at 1.369au. Toni photogra...

Images: 3 pcs

(2105) Gudy

28.8.2022 at 23.07 - 23.16 - Orimattila, Artjärvi, Tähtikallio (III)
Kari Laihia, Porin Karhunvartijat

(2105) Gudy (1976 DA) A main-belt inner-edge asteroid imaged during the third evening of the 2022 August extra talcos. The asteroid was discovered by the German astronomer Hans-Emil Schuster at the ESO La Silla Observatory (809 European Southern Observatory, La Silla) on February 29, 1976. Hans Schuster has discovered a total of 25 asteroids and comets 106P/Schuster and C/1976 D2. The asteroid got its name from Hans-Emil Schuster's friend Gudrun Werner, who discovered this asteroid in the same blue survey plates as comet 1976c = 1975 II. [Ref: Minor Planet Circ. 4645]. We have imaged this ...

Images: 3 pcs

(215188) 2000 NM

28.8.2022 at 22.44 - 22.53 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Porin Karhunvartijat

(215188) 2000 NM (2000 NM) Apollo NEO +1km asteroid imaged during the third evening of the 2022 August extra talcos. The asteroid was discovered by American amateur astronomer Leonard L. Amburgey Scott Observatory (823 – Fitchburg) on July 2, 2000. School teacher Leonard Amburgey has discovered a total of 2 asteroids in his backyard observatory in the town of Fitchburg in northern Worcester County, Massachusetts. Source Wikipedia https://en.wikipedia.org/wiki/Leonard_L._Amburgey . The entire estimate for the asteroid is 2.9km and rotation speed 9.24hr. Spectral class Spec_B=>Sr . When photogra...

Images: 3 pcs

(2048) Dwornik

28.8.2022 at 22.24 - 22.41 - Orimattila, Artjärvi, Tähtikallio (II)
Kari Laihia, Porin Karhunvartijat

(2048) Dwornik (1973 QA,1975 EW,2016 FD6) A main-belt inner-edge asteroid imaged during the third evening of the 2022 August extra talcos. The Hungaria family asteroid was discovered by the American astronomer Eleanor Francis "Glo" Helin at the Palomar Observatory (675 Palomar Mountain) on August 27, 1973. The asteroid is named after the American planetary geologist Stephen E. Dwornik (1926-2012). Stephen Dwornik was project manager for NASA's Surveyor program. Source wikitia (translated by Google) https://wikitia.com/wiki/Stephen_E._Dwornik . The asteroid has a length of 2.61 km and a rot...

Images: 3 pcs

NGC 6894

28.8.2022 at 01.09 - Orimattila, Artjärvi, Tähtikallio (I)
Toni Veikkolainen, Jani Katava, Kari Laihia, Keski-Uudenmaan Altair

We had photographed this object on Tähtikalli without colors about a year ago. Now we got the colors. There were serious problems with the humidity and the camera cooling had to be removed sometimes because of them, and otherwise the camera had to be operated at -15 degrees instead of the normal -20 degrees. In any case, the object of observation is recognizable.

Search result contains observations from time period 1.1.2000 klo 00.00 - 9.12.2022 klo 21.39.