IOTA-ES
Time 2022-10-08 09:58:40Web Name: IOTA-ES
WebSite: http://www.iota-es.de
ID:344555
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IOTA,ESDescription:
About us About usFlyerStatutes Objects MoonPlanetsAsteroidsPluto and TNOsSolar Eclipses JOA Journal & ON All JOA IssuesHow to write articles for JOAON heritage project Guidelines Guidelines Partners and Friends Partners and Friends Members How to become a member Login Contact Contact Call for Observation
For specialist!!!
Uranus and its rings occult UCAC4 535-005486 in the morning of the 13th of Sep 2022
On the 13th of September 2022 the Uranus system will occult the star UCAC4 535-005486. The stellar magnitude is in the visible around 11m9. This is a very big difference compared to the 5m7 of Uranus. However Uranus is significantly dimmer in the near infrared due to its methane component in its atmosphere. Read more.....The Occultation Newsletter Heritage Project
All issues from the Occultation Newsletter (the predecessor of the JOA) from 1974 July to 2009 July have been scanned and are now presented as pdf files thanks to Oliver Klös.Here you can read them.....Call for Observation
Occultation by Saturn's Moon Titan, 2022 July 9
On 2022 July 9 a stellar occultation of HIP 107569, SAO 164648 (8.7 mag, spectral type F0V) in the constellation Capricornus by Saturn'slargest moon will be observable from large parts of the US, including Hawaii, whole Central America and the northwestern part of South America. Here you find more.....The XLI European Symposion on Occultation Projects will be held in Granada, Andalucia/Spain
from the the 10th to 11th of September 2022. You can get all infos about this conference and register for it here.Call for Observation
2005UQ513 occults UCAC4 622-002689 (Gmag 9.4)) on 2021 November 28 in Europe, predicted by the Lucky Star Team.
In the early evening of November 28th 2021 around 17h59min UTC 2005UQ513 will occult UCAC4 622-002689 (9.4 Gmag). a map from the LuckyStar project you can see below. Good luck!Observation fo the Occultation of UCAC4 336-196144 by Pluto
Only about 13 degree of elevation in Munich, but excellent weather conditions allowed the observation of the occultation of UCAC4 336-196144 (Vmag 13m1) by Plutowith an 11 inch instrument and 700 msec exposure time.
Call for Observation
Pluto Occults UCAC4 336-196144 on 2021 November 19 in Europe, predicted by the Lucky Star Team.
In the early evening of November 19th Pluto will occult UCAC4 336-196144 (13.1 G-mag) in the constellation Sagittarius.The southern part of the path will cross central Europe from the West to the East just after dusk. Have a look!Call for Observation
Transatlantic Occultation by TNO (84522) 2002 TC302 in Europe and North America
The minor planet (84522) 2002 TC302 will occult the star UCAC4 616-007599 on 2021 Nov 2011 around 2h54min UTC. The star has the Vmag of 11m7. This is event is easy to observe even with smaller instruments! Get more ideas about this event.Call for Observation
Stellar Occultation of Regulus by Asteroid (2589) Daniel on 2021 Mar 09
Asteroid (2589) Daniel (16.9 mag) will occult 1.3 mag bright star Regulus on 2021 March 09. Get more ideas about this event.Urgent Call for Observation
(99942) Apophis Occults UCAC4 436-049782 (9m3)
(99942) Apophis is a Near Earth Object, which is on a high priority list because ot close encounters with the earth. On the 7th and 11th of March occultations with bright stars will happen in Europe and in the USA. Please have a look at the information and try to observe, if you are cloe to the track.Call for Observation
Occultation by Triple System (45) Eugenia across Europe, 2021 Feb 25
Asteroid (45) Eugenia (13.4 mag) and its satellites Petit-Prince and S/2004 (45) 1 will occult an 11.6 mag star around 18:04 UT on 2021 February 25. Try to observe it!Predictions for Asteroids of the "Neglected Asteroids" Program
To support the observation campaign by Anna Marciniak for neglected asteroids, predictions of occultations for February 2021 can be found here.ON Heritage Project
A new part (1990 - 1993) of the ON heritage project has been uploaded here.For IOTA/ES members: Items to lend
On the membership page you find a list of technical items, which could be lent by IOTA/ES members.Call for Observation
Neglected Asteroids
A special observations campaign is organized by Anna Marciniak for neglected asteroids. These are small bodies of the main belt with slow rotation and small lightcurve amplitudes, avoided by most of previous studies. Have a closer look!Call for Observation
Occultation by (2) Pallas across Europe, 2020 June 22
Asteroid (2) Pallas (9.6 mag) will occult an 11.5 mag star around 23:06 UT on 2020 June 22. The European continent is located inside the path. Have a look!Moon occults Venus on June 19th, 2020 around 8h UTC
Moon occults Venus on the 19th of June 2020 in the morning. For Berlin its around 8h UTC. The situation for Berlin is shown in this graphic visualization using "Carte du Ciel" planetarium software.An overview of the occultation and a special call for observation from Costantino Sigismondi can be found here
Tutorial "SharpCap, Timestamps and Tangra"
A tutorial about the SharpCap software, generating timestamps and Tangra software was written by Christian Weber. It's not only interesting for those who attended the workshop about QHY174GPS camera. You can find it here.A Workshop about using the QHY174 GPS Camera in Berlin
A workshop about the use of the QHY174GPS camera was held on the 29th of February 2020 in Berlin/Germany at the Archenhold Observatory. It addresses the use of the camera system with GPS timing inserts from the beginning.If you are interested in the presentations have a look at the agenda of the workshop.
Call for Observation
Occultations by (87) Sylvia and its Satellites Romulus and Remus on 2020 Feb 10
In October 2019 an occultation by the triple system of asteroid and its two moons was successfully observed in Europe. Now there is another opportunity to learn more about (87) Sylvia and its satellites. But the targest star is much fainter, so large apertures are needed for detections of occultations by Romulus and Remus. Find out more!Call for Observation
(4) Vesta occults 5.3 mag star on 2020 Feb 11 in Europe
In the late evening of February 11 around 22:01 UT the minor planet (4) Vesta will occult HIP 14439 (5.3 Vmag) for a maximum duration of 28 seconds with a drop in magnitude of 3.0 mag and an approximate projected width of 522 km. UK, Ireland, Norway, Denmark, Germany, Sweden and Poland and the the Baltic states are inside the path. In the eastern European countries the target star will be very low in the western sky. Have a look!For 2020: Bright Lunar Total Occultations
For central Europe, visible from Frankfurt am Main, Germany, a list of lunar occultations of stars brighter than mag 4 has been calculated. Have a look!Tutorial about Using Occult for (Total) Lunar Occultations by Dave Gault and Dave Herald
A new tutorial with the title " Tutorial - Using Occult for (Total) Lunar Occultation prediction, reporting and analysis." by Dave Gault and Dave Herald has been added to our guideline section. Have a look!Call for Observation
(34339) 2000 QH218 Occults Naked-Eye-Star on 2019 February 05 in Europe
In the late evening of February 5th, the 11-km minor planet (34339) 2000 QH218 will occult HIP 48455 (3.4 Vmag). Observers in the occultation path will see a disapperance of 1.4 sec. Read more!Total Lunar Eclipse ... Shortly before Centrality
One of the most prominent examples of occultations is a lunar eclipse. The longest lunar eclipse of this century takes place just now! The image with a conventional DSLR camera has been taken from Munich. Copyright W. Beisker, IOTA-ES (2018)Successful observation of the occultation by Himalia of 10m5 star!
Observed from stations in Poland and Ukraine.
Positive chords from the Himalia event are to be reported. Two with the double system Max and Moritz operated by Anna Marciniak (Moritz)) in Poznan and 100km away the other by Eberhard Bredner near Konin (with Max) and a third, very short occultation (~2 sec) observed by Roman Hirsch (Astronomical Observatory Institute) in Borowiec. Also positive observtions in the Ukraine. More news will follow!
Call for Observation >>> Update 17th of May!
Himalia (J-6) Satellite of Jupiter Occults Bright Star (20th of May 2018)!
Himalia, an irregulate satellite of Jupiter will occult a 10mag star on the 20th of May 2018 around 22h 16min UTC for northern and eastern Europe. The occultation track has moved about 180 km north! Read more!Occultation by minor planet (130) Elektra successfully observed in Europe
Over 30 stations participated in the most successful observation of an occultation by (130) Elektra ever.Never before has the shadow profile of minor planet (130) Elektra been so accurately measured. More than 30 observers from Italy, Switzerland, France, Belgium and Great Britain measured the occultation around 00:30 U.T. on April 21, 2018. Read more!GRAZPREP-software for 2018
Find and prepare grazing occultations in detail
Grazing Occultations of stars by the moon are local events and thus require an individual selection according to personal observation preferences. The GRAZPREP-software assists in all aspects of finding individually interesting events as well as selecting the best observing stations promising the most contacts between the star and the lunar limb in high resolution. GRAZPREP can be downloaded and installed, including a step by step operation tutorial. Find more informations about this software package!
Call for Observation
2002TC302 Occults UCAC4-593-005847 (15m8)for Europe. New astrometric update!
On 28th of January 2018, around 21h55min UTC, the TNO 2002TC302 occults a 15m8 star. This is a relatively easy to observe event, because of the low speed of the TNO relative to the star of only about 5km/sec. Give it a try! Even instruments with less than 30 cm diameter should do it. And you don't need a high speed camera for this slow event. With 1 or 2 seconds exposure time you can do valuable science! A new update of the prediction has been issued by J. Desmars. Have a look!.(8) Flora occults TYC 1341-00957-1 on 2018 Jan 13
A campaign has been set up for this event. Have a look!Haumea, the most peculiar of Pluto companions, has a ring!
From a press release of the Instituto de Astrofisica de Andalucia (IAA-CSIC)The trans-neptunian belt contains four dwarf planets, among which Haumea stands out for its extremely elongated shape and rapid rotation.
A stellar occultation revealed the main physical characteristics of this heretofore poorly known body – among which the most surprising presence of a ring.Researchers around Jose-Luis Ortiz and Pablo Santos-Sanz published a paper in Nature, that showed a ring around Haumea. This is the first trans-Neptunian object with a ring.
"One of the most interesting and unexpected findings was the discovery of a ring around Haumea. Until a few years ago we only knew of the existence of rings around the giant planets; then, recently, our team discovered that two small bodies situated between Jupiter and Neptune, belonging to a group called centaurs, have dense rings around them, which came as a big surprise. Now we have discovered that bodies even farther away than the centaurs, bigger and with very different general characteristics, can also have rings,” says Pablo Santos-Sanz, a member of the IAA-CSIC team. Also members of IOTA-ES, professionals and amateurs as well, contributed to this research. It has been published by
J. L. Ortiz et al. "The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation". Nature, (2017) DOI: 10.1038/nature24051
Newest JOA ready for download!
Transcontinental Occultation of a 12m4 star UCAC4 410-143659 by Triton on the 5th/6th of Oct 2017 around 23h50 UTC.
Visible from USA and large parts of Europe
Many stations throughout Europe have recorded the event with telescope of different sizes ranging from 20cm to more than 1 meter diameter.An example of the central flash recorded near the central line in Elvas, Portugal is shown in the following picture. It as been taken with a 27cm telescope and a 12 bit digital CCD camera. -->A very preliminary lightcurve shows the occultation with the central flash. Exposure time 0.3 seconds. No filter. Copyright W. Beisker, IOTA-ES, 2017The updates of the predictions of this campaign can be
followed here.
Actual Predictions for 55 TNOs and Centaurs
In the frame of the European-funded Lucky Star project, a webpage with actual predictions of occultations 55 TNOs and Centaurs had been developed by Josselin Desmars from Bruno Sicardy's team. Occultations can be selected by date, magnitude range and name of the occultation object. Have a look!Minor Planet Occultations of Bright Stars
Occultations by stars brighter than about 9th mag will be presented in this blog.https://call4obs.iota-es.deGrazing Occultations of Stars by the Moon
A field of professional astronomy between science and beautyAmong all occultation phenomena in the sky grazing occultations of stars by the moon have a very unique character. The observation of these spectacular events ... read the overview in full length!
Asteroid TU24 recorded from Munich around 1h 10min UT on 30th Jan 2008. Fast motion (5x). Near miss of 11m9 star TYC 4140-520
EU-Project EUROPLANET creates a database for professional and amateur observatories!. Have a look to their questionaire! Read more...
Information about running TNO campaigns
Information about running campaigns for TNO occultations you can find here at Felipe Braga-Ribas website. Follow up the prediction process and get ready to observe if it is in your area!Inauguration of IOTA-ES 0.5m portable telescope.
It has been named "m2"
On the 8th of October an inauguration party has been held at the Archenhold observatory in Berlin. Members of IOTA-ES including the board of directors celebrated the inauguration with champagne and sausages. The first real observation with the instrument had been the successful observation of the occultation by Pluto on the 19th of July 2016. It will still take some more time, to finish some minor work and to write the operation instructions. But in the near future it can be booked by IOTA members for observation projects. Read more!!
Successful observation of a Chariklo occultaton in Namibia with the 0.5m portable instrument m2.
On the 9th of April the m2 instrument was used by IOTA-ES member Mike Kretlow as part of an international campaign in cooperation with the EU research project LuckyStar to observe the occultation of UCAC4-294-211208 (14m) by Chariklo in Namibia. Despite poor weather situation, the occultation could be recorded using a Raptor camera with 0.08 sec exposure time. This was the first "Out of Europe" use of m2. More positive observations came from a IOTA-ES member (Karl-Ludwig Bath) observing at the IAS observatory (Hakos). One more station operated by Jean-Luc Dauvergne was successful too. 3 out of 6 deployed stations got data, the other failed due to unfavorable weather conditions. A very preliminary lightcurve shows the central body near its maximal diameter and the rings of Chariklo as well.
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The XLI European Symposion on Occultation Projects will be held in Granada, Andalucia/Spain
from the the 10th to 11th of September 2022. Please have a look and register here.The Journal for Occultation Astronomy
is now free for all!Have a look!Call for Observations!
Occultations of Bright Stars by Minor Planets can be found here.Reporting lunar occultations
You have to know, how to report lunar occultations! Your reports have to be sent to the email address lunoccult.Dave Herald reports from Australia how to do it!!!
For Occultwatcher Users
European Feed for Lunar Occultations of Double Stars
A "Lunar Occultations Add-in" for "OccultWatcher" to get interesting lunar occultations of double and suspected double stars. Read more.How many photons
do you get from a star?Read more...GPS ... Where am I ?
Positionsbestimmung mit GPS und Karte... in German Read more...The Artificial Night Sky Brightness
for Occultation Observing Stations in EuropeRead more...Impressum/DSGVO
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