| News 2018 - 2020 |
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| Velika konjunkcija Jupitra in Saturna (21. december 2020) |
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Ker sta zadnja leta tako Jupiter, kot Saturn globoko na južnih deklinacijah so bili najboljši pogoji za opazovanje velike konjunkcije iz bolj južnih lokacij bližje
ekvatorju. Član opazovalne skupine AO Črni Vrh Jure Skvarč, je uspešno opazoval konjunkcijo iz observatorija
Roque de Los Muchachos na kanarskem otoku La Palma,
kjer so bili vremenski pogoji idealni (nadmorska višina 2400m in planeta skoraj 20 stopinj višje na nebu v primerjavi s Slovenijo).
Zaradi oblačnega vremena največjega zbližanja obeh planetov 21. decembra 2020 (najmanjša razdalja 6') iz Slovenije ni bilo mogoče opazovati. Smo pa dogodek opazovali nekaj dni prej, ko sta bila planeta na medsebojni razdalji med 20 in 30'. Torej na razdalji premera polne Lune. Dne 17., 18. in 19. decembra 2020 je bilo v Zgornjesavski dolini jasno. S sodelavcema Janezom Kosom in Klemnom Čotarjem s Fakultete za matematiko in fiziko smo si našli primerno opazovalno mesto nad vasjo Podkoren, ob cesti proti mejnemu prehodu Korensko sedlo. Za opazovanje konjunkcije smo poleg širokokotnih objektivov uporabili 25-cm, f/5 in 20-cm, f/5 Newton teleskopa, ter 28-cm, f/10 teleskop Schmidt-Cassegrain.
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Konjunkcija Jupitra in Saturna 21. decembra 2020 Velika konjunkcija Jupitra in Saturna, posneta ob 18h55UT z 250 mm, f/4 Newton teleskopom, 2,7x Barlow, L filtrom in barvno kamero ASI533MC. Za selekcijo slik je bil uporabljen program PIPP, lasten program za zlaganje in Registax za ostrenje slike. Svetlost Saturna je povečana za faktor 3. Copyright © 2020 Jure Skvarč, La Palma.
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Konjunkcija Jupitra in Saturna 21. decembra 2020 Velika konjunkcija Jupitra in Saturna, posneta ob 19h16UT z 250 mm, f/4 Newton teleskopom, 2,7x Barlow, L filtrom in barvno kamero ASI533MC. Planeta sta bila okoli 14,5 stopinje nad obzorjem. Na Jupitru se vidi velika rdeča pega. Za selekcijo slik je bil uporabljen program PIPP, lasten program za zlaganje in Registax za ostrenje slike. Svetlost Saturna je povečana za faktor 3. Copyright © 2020 Jure Skvarč, La Palma.
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Konjunkcija Jupitra in Saturna 21. decembra 2020 Video animacija konjunkcije Jupitra in Saturna, posneta med 18:55 in 20:08UT. Med opazovanjem se je višina planetov spremenila od 18 stopinj na 5 stopinj nad obzorjem. Copyright © 2020 by J. Skvarč, La Palma. For enlarged view switch to YouTube |
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Konjunkcija Jupitra in Saturna 18. decembra 2020 Posnetek Jupitra in Saturna v polju kamere Canon EOS 6D na teleskopu Celestron 11 (28-cm, f/10 S-C) je sestavljen iz 28 sekund dolgega video posnetka, narejenega 18. 12. 2020 okoli 16h27UT. V zornem polju kamere, ki meri 44' x 30' je Jupiter desno zgoraj, Saturn pa precej temnejši levo spodaj. Kotna razdalja med planetoma je 21'. Copyright © 2020 H. Mikuž in J. Vales, Črni Vrh Observatory.
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Konjunkcija Jupitra in Saturna 17. decembra 2020 Panoramski posnetek konjunkcije Jupitra in Saturna ter Lune, narejen 17. 12. 2020 ob 16h10UT s 120mm, f/4 teleobjektivom in kamero Canon EOS 6D. Osvetlitev 1/4s pri ISO 400. Gorski vrhovi na posnetku so Ponce nad Planico. Copyright © 2020 H. Mikuž, Črni Vrh Observatory.
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| Starlink Satellite Transit (April 17, 2020) |
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As of early May 2020, Space X has launched 422
Starlink satellites in low Earth orbit.
In total, nearly 12.000 satellites are planned to be deployed, with a possible later extension to 42.000. This objects are
very bright, of magnitude about +1, paticularly after the launch, producing also bright flares as documented in the images below.
Astronomers are very much concerned, because such satellite constellations will have tremendous impact on astronomical observations.
Considerable amount of astronomical images will be detoriorated due to bright satellite trails, particularly in hours after the
sunset and before dawn.
The imaged train of Starlink satellites belong to Mission 5, launched one month ago, on March 18, 2020. Still very bright, the satellites slowly drifted from south to north during the flyby, detoriorating a large part of the night sky. Most astronomical observations within the satellite corridor have been spoiled and more or less useless for serious analysis. |
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Starlink satellite transit on 2020 April 17 Timelapse sequence of Starlink satellite transit on 2020 April 17 after the sunset (19h04 - 20h10UT). Images were taken with all-sky camera with 60-second connsecutive exposures at ISO 3200. Copyright © 2020 PIKA Project, Črni Vrh Observatory.
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Starlink satellite transit on 2020 April 17 Image of Starlink satellite transit over the Črni Vrh Observatory with bright -10 magnitude flash, produced by reflected sunlight from one of the units solar panels. Copyright © 2020 PIKA Project, Črni Vrh Observatory.
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| Mercury Transit (November 11, 2019) |
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Planet Mercury transited the Sun on the 11th of November 2019. It was visible for several hours in most of the world, including North and
South America, Africa, and Europe. The transit was observed from the
Roque de Los Muchachos
mountain on the island of La Palma in the Canary Islands, Spain, where there are many professional observatories.
The observations were made with a 150 mm Maksutov-Cassegrain telescope, solar filter and a Canon 6D digital camera. As it is difficult to align the telescope properly during the day, manual corrections were made every 5 minutes to compensate for the image drift. The images were later aligned using an automatic procedure. The observations were stopped before the end of the transit due to the flat battery from which the telescope was powered. |
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Mercury Transit on Nov. 11, 2019 The animation shows the transit from start at 12:34:43UT, till 16:07UT, when the camera stopped due to battery malfunction. The transit ended at 18:04:54UT. Images were taken at 15-seconds intervals with 150 mm, f/12 Maksutov Cassegrain telescope and Thousant Oaks Optical Solarlite 2+ filter. Copyright © 2019 by J. Skvarč, Črni Vrh Observatory. For enlarged view switch to YouTube | |
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Mercury Transit on 2019 November 11 Composite image of Mercury Transit, stacked from images taken at 15-minute intervals. Copyright © 2019 by J. Skvarč, Črni Vrh Observatory.
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| Partial Lunar Eclipse on 2019 July 16 (July 30, 2019) |
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Partial Lunar Eclipse on 2019 July 16 Sequence of images with 2.5-minute intervals, obtained from the peak of Sinji Vrh above Ajdovščina, Slovenia on 2019 July 16 (18h40-23h44UT) with 18mm, f/3.5 lens and 0.5s exposures with Canon EOS 650D at ISO 800. Copyright © 2019 by J. Vales, Črni Vrh Observatory.
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| Noctilucent Clouds over Slovenia (June 21, 2019) |
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Noctilucent clouds were visible over Slovenia during the evening twilight on 2019 June 21. The whole phenomena lasted about 70 minutes (19h40-20h52UT)
and was automatically recorded with panoramic camera at Črni Vrh Observatory. Images were composed in to
this time-lapse movie.
Copyright © 2019 by PIKA project, Črni Vrh Observatory.
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Noctilucent Clouds on 2019 June 21 Panoramic view of noctilucent clouds, taken from Ankaran, Slovenia on 2019 June 21 around 19h50UT. Image is a mosaic of 8 separate exposures. Copyright © 2019 by J. Vales, Črni Vrh Observatory.
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| Fireball of March 31 (March 31, 2019) |
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Fireball (about magnitude -12) was recorded at Črni Vrh Observatory on 2019 Mar. 31 morning. The analysis of the fireball trail shows that the body exploded
and fragmented upon the entry into the atmosphere. The greenish glitter of the main explosion is beautifully seen, as well as several flashes at the end
of a trail, indicating explosions of smaller remains of the parent body.
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Fireball of 2019 Mar. 31 Fireball was recorded with the all-sky color camera and fisheye lens on 2019 Mar. 31 at 00:10:13UT +/-30s. Exposure time was 60s at ISO 3200. Copyright © 2019 by PIKA project, Črni Vrh Observatory.
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Fireball of 2019 Mar. 31 Enlarged view of the fireball path above the southern horizon. Copyright © 2019 by PIKA project, Črni Vrh Observatory.
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| Discovery of supernova SN 2018kzc (December 27, 2018) |
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Supernova SN 2018kzc was discovered by S. Matičič on 2018 Dec. 27.961 UT on
four images taken with 60-cm, f/3.3 Cichocki telescope and reported on the
Transient Name Server.
Spectroscopic observations were performed with the Asiago 1.82 m Copernico Telescope equipped with AFOSC (range 340-820 nm; resolution 1.4 nm) on 2018 Dec. 28.87 UT. The spectrum is consistent with a type-Ia supernova about 6 days before B maximum light, assuming a redshift z=0.0378. Details are published in TNS SN 2018kzc and ATel 12337.
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Discovery image of supernova SN 2018kzc Discovery images were taken on 2018 Dec. 27.961 - 28.011UT with the 60-cm, f/3.3 Cichocki telescope. Image scale is 1.25 arc sec/pixel. Copyright © 2018 by S. Matičič, Črni Vrh Observatory. |
| Spektri zvezd z objektivno mrežico (11. december 2018) |
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Z mrežico pred objektivom (~200črt/mm) sem 11. decembra 2018 posnel nekaj polj s svetlimi zvezdami in tudi komet 46P/Wirtanen, ki je bil takrat v polju.
Spektri so v smeri rektascenzije, polje na dolgi stranici je veliko okoli 30°.
Polje z zvezdami na sliki (0-ti red) je zahodno od Oriona, komet je skrajno desno na sredini. Spektri na levi strani slike (1. red) pripadajo svetlim zvezdam Oriona z Betelgezo levo zgoraj in Riglom desno spodaj. Vmes so 3 zvezde v pasu. Same zvezde Oriona se nahajajo levo izven polja. V spektrih zvezd se lepo vidijo absorpcijske črte. Posebej zanimiv je spekter meglice M42 pod tremi zvezdami v pasu, v katerem se lepo vidijo 3 zelene emisijske črte (verjetno kisik) in skrajno desno še izrazita črta H-alfa. Komet 46P/Wirtanen v sredini desno je bil posnet na naslenji sliki, vendar spektra ni videti, ker je jedro preveč razmazano in tudi sicer objekt prešibek. |
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Spektri zvezd v Orionu Snemal sem s kamero Canon EOS 6D na ekvatorialnem stojalu z vodenjem. Uporabil sem Canon zoom objektiv 17-40mm, ki je bil nastavljen na f=44mm, f/4. Osvetlitev je bila 90s pri ISO 1600. Copyright © 2018 by H. Mikuž, Črni Vrh Observatory. |
| Fireball of September 11 (September 11, 2018) |
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Fireball (about magnitude -10) was recorded at Črni Vrh Observatory on 2018 Sep. 11 evening.
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Fireball of 2018 Sep. 11 Fireball was recorded with the all-sky color camera and fisheye lens on 2018 Sep. 11 at 21:47:03UT +/-30s. Exposure time was 60s at ISO 3200. Copyright © 2018 by PIKA project, Črni Vrh Observatory.
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Fireball of 2018 Sep. 11 Enlarged view of the fireball path just above the NE horizon. Copyright © 2018 by PIKA project, Črni Vrh Observatory.
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| Fireball of August 28 (August 28, 2018) |
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Bright fireball (about magnitude -10) was recorded at Črni Vrh Observatory on 2018 Aug. 28, just before dawn,
moving nearly 40 degrees accross the sky. The sky was lit also by 97% illuminated Moon.
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Fireball of 2018 Aug. 28 Fireball was recorded with the all-sky color camera and fisheye lens on 2018 Aug. 28 at 02:43:18UT +/-30s. Exposure time was 30s at ISO 400. Copyright © 2018 by PIKA project, Črni Vrh Observatory.
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Fireball of 2018 Aug. 28 Enlarged view of the fireball path accross the sky. Copyright © 2018 by PIKA project, Črni Vrh Observatory.
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| Total Lunar Eclipse and Mars Opposition (July 27, 2018) |
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Total Lunar Eclipse on 2018 July 27 Sequence of images with 2,5-minute intervals, obtained from the peak of Sinji Vrh above Ajdovščina, Slovenia on 2018 July 27 (18h43-23h23UT) with 18mm, f/3.5 lens and 0.5s exposures with Canon EOS 650D at ISO 800. Part of images around the center of totality are missed due to clouds. Copyright © 2018 by J. Vales, Črni Vrh Observatory |
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Total Lunar Eclipse on 2018 July 27 Time-lapse sequence of the Total Lunar Eclipse, composed from images by Jan Vales, obtained from Sinji Vrh (see explanation to 1st picture). Beginning of video also shows the anticrepuscular rays from the setting Sun just below the horizont. Copyright © 2018 by J. Vales, Črni Vrh Observatory. Switch to full-format YouTube |
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Total Lunar Eclipse on 2018 July 27 and Opposition of Mars Time-lapse sequence of the Total Lunar Eclipse and opposition of Mars, composed from images by H. Mikuž, obtained from guided exposures, taken at Črni Vrh Observatory (19h44-22h06UT) with 17 mm, f/4 lens and Canon 6D camera. Mars was just below the Moon during the eclipse. Copyright © 2018 by H. Mikuz, Črni Vrh Observatory. Switch to full-format YouTube |
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