Ondrejov Observatory

Phone:
+420 323 620 111

Address:
Friu010Dova 298, Ondu0159ejov, 251 65 Ondu0159ejov, Czechia

Attraction Location

Ondrejov Observatory Videos

Partial Lunar Eclipse - 2019

Timelapse of Lunar eclipse on 16./17. July 2019.
Observed at the Ondřejov observatory, Czech Republic.

Observatoř Ondřejov | Wikipedia audio article

This is an audio version of the Wikipedia Article:

00:00:25 1 History
00:01:59 2 List of discovered minor planets
00:02:09 3 Gallery
00:02:18 4 See also

Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

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Speaking Rate: 0.9987717815486088
Voice name: en-AU-Wavenet-B

I cannot teach anybody anything, I can only make them think.
- Socrates

SUMMARY
=======
The Ondřejov Observatory (pronounced [ˈondr̝ɛjof]; Czech: Observatoř Ondřejov) is the principal observatory of the Astronomical Institute (Astronomický ústav) of the Academy of Sciences of the Czech Republic. It is located near the village of Ondřejov, 35 kilometres (22 miles) southeast of Prague, Czech Republic. It has a 2-metre (6 ft 7 in) wide telescope, which is the largest in the Czech Republic.

Vyhlídka Máj a hvězdárna Ondřejov 26.8.2018

Vyhlídka Máj a ondřejovská hvězdárna 26.8.2018. Natočeno dronem DJI Mavic Air

Dieter Nickeler: MHD flows at astropauses and in astrotails (18.06.2014)

Dieter Nickeler's (Ondrejov observatory, Czech Republic) presentation at Tartu Observatory's astronomy seminar on June 18, 2014.

Stellar winds are obstacles for the interstellar medium which shows a relative movement with respect to the star, e.g. the Sun. Due to the interaction of both flows, namely that of the stellar wind and the interstellar medium flow, both flows are decelerated and contact surfaces form, so called astropauses or in the case of the Sun the heliopause. The solar wind cavity inside the heliopause is called the heliosphere (=general astrosphere). Usually these separating surfaces, the astropauses, are defined and determined by the distribution and location of the null points of the magnetic field and null point of the plasma flow, the so called stagnation points. We present and discuss simplified models of such astrospheres and especially their downflow regions, the astrotails, taking (ideal) field-aligned MHD flows into consideration. Almost certainly shear flows occur in these astrospheres or at the astropauses and a strong fragmentation of electric currents, magnetic field and vortices takes place. Even if for the calculation of these nonlinear steady-state MHD flows, well ordered magnetic field structures are used, fractal-like structures will be formed. The cascading down to very small structures can lead to instabilities, eruptive processes like reconnection and the occurence of strong localized electric fields. These processes may be also responsible for acceleration mechanisms, contributing to cosmic ray production.

Grigoris Maravelias: The circumstellar environment of B[e] Supergiants - disks or rings?

Astronomy seminar at Tartu Observatory
11.05.2016
Grigoris Maravelias (Ondrejov observatory, Czech Republic):
The circumstellar environment of B[e] Supergiants - disks or rings?

Massive stars affect strongly their environment through their intense stellar winds, which transfer momentum and energy to the interstellar medium and enrich it with chemically processed material as they evolve. This interaction becomes substantial in short-lived transition phases of massive stars (e.g. B[e] Supergiants, Luminous Blue Variables, Yellow Hypergiants) in which mass-loss is more enhanced and usually eruptive. However, these phases are not well-understood, such as the lack of B[e] Supergiants predicted from stellar evolution theory. In order to improve our knowledge for the particular class of B[e] Supergiants we have initiated a campaign to study them with high-resolution optical and near-infrared spectroscopy. This tool allow us to investigate their complex circumstellar environment, consisting of a combination of atomic, molecular and dust regions of different temperatures and densities. We use the strategic [OI] and [CaII] emission lines, and the CO bandheads to probe the structure and the kinematics of their formation regions. We find that these emission lines form either in a single or in multiple equatorial rings, a probable result of previous mass-loss events.

ČR - Praha - Štefánikova hvězdárna - Petřín

Ondřejov

DJI Phantom II & GoPro Hero 3+

The beauty in darkness / Krása v temnotě (PF 2013) - HD

Timelapse of 2012 sky phenomena: Moon haloes, Venus transit 2012, NLCs 15th June, airglow, Perseids, storms and total solar eclipse on 13th November. Locations: Seč reservoir, Czech republic (melting ice, Milky way, Venus-Jupiter conjunction, north pole, sunset with fishermen); Kunětická hora, Czech republic (Venus transit); Korčula island, Croatia (Milky way, skywatchers); Ondřejov observatory, Czech republic (Moon haloes, old observatory, storms, NLCs); Pancíř, Czech republic (Milky way, airglow, Perseid fireball); Mulligan Hwy, Australia (solar eclipse, south pole).

Used Canon 550D, Canon 450D; Samyang 8 mm (f3.5), Samyang 14 mm (f2.8), MTO 500/10.

Music: Harry G. Williams: Algiers Ferry; Jason Shaw: Timen Passing By; Kokin Gumi: Feng Shui; Paneye: Feathers From Flooded Colonies.

PF 2013 you all!!!

Total Lunar Eclipses 2018 - 2019 4K timelapse

Total Lunar Eclipse in June 27 2018 and January 21 2019

check out my astrophotography pictures:

Equipment used:
Canon 6D mark II, 2x Canon 550D
Sky Watcher Newton 254/1200mm, EQ6 mount
Sky Watcher Star Adventurer Mini, William Optics Megrez 72 ED DDG APO
Canon 16-35mm f4, Tamron 70-200mm

Observed from Czech Republic: 2018 Strachotín, 2019 Ondřejov Observatory

Music is my recording, cover and homage to Steven Fisk - Overture

Astronomical Institute of Czech Academy of Sciences | Wikipedia audio article

This is an audio version of the Wikipedia Article:

00:00:20 1 Field of research and organization of the institute
00:00:59 1.1 Department of Solar Physics
00:01:24 1.2 Department of Interplanetary Matter
00:02:00 1.3 Stellar Physics Department
00:02:58 1.4 Galaxies and planetary systems department
00:03:58 2 History of the Institute
00:04:55 3 See also

Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

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Speaking Rate: 0.7900859603391684
Voice name: en-US-Wavenet-F

I cannot teach anybody anything, I can only make them think.
- Socrates

SUMMARY
=======
The Astronomical Institute of the Czech Academy of Sciences was founded in 1954. Currently, it has its headquarters in Ondřejov observatory, roughly 35 km south-east from Prague and its director is Vladimír Karas.

ISS and Discovery shuttle fly over + timelapse video fullHD

7.3.2011 16:59 UT on Ondrejov Observatory
fly over Czech Republic

Show Your Research - Wie häufig sind Planeten bei besonders heißen und kalten Sternen?

Silvia Sabotta

Wie häufig sind Planeten bei besonders heißen und kalten Sternen?

Mit diesem Wissen können Theorien über die Entstehung von Planeten dahingehend geprüft werden, ob sie mit der Wirklichkeit übereinstimmen. Wir möchten die nötigen Beobachtungsdaten dafür liefern mit Hilfe der 2m Teleskope in Tautenburg und Ondrejov (Tschechien) und mit dem hochmodernen Instrument CARMENES in Spanien.

Night Sky around the World - Timelapse Video - 4K

In the bright light of city lights we often forget how amazing night sky can be. I have seen my own Moon shadow many times, but every-time I notice it, I am simply fascinated by the amount of light Moon produces. Full Moon not only casts its moon shadows, but also brings up dark blue color of otherwise very dark black night sky. Camera setting during such times doesn't need to be that extreme as when you are trying to capture Milky way during Moonless night.

Travel with me around the world to see how night looks in various locations, might it be remote Mongolian ger or Dracula castle in Romania. Various fascinating desert landscapes of Middle East are wonderful locations to capture under the night sky. I hope you'll enjoy this trip with me.

This timelapse locations are as follows :

➤ Czechia - Czech Paradise National Park - Sokoli Pusinky Rock formation
➤ Czechia - Bohemian Switzerland National Park - Pravcická Archway - Large, narrow arch naturally formed from sandstone
➤ Germany - Saxon Switzerland National Park
➤ Qatar - Bir Zekreet Desert Landscape - Spectacular rocky limestone cliffs & desert mushroom formations
➤ Moon Eclipse
➤ Romania - Brasov - Bran Castle - Castelul Bran - Dracula's Castle - Most famous Gothic fortress perched on rock - National monument and landmark of Romania
➤ Slovakia - Banská Štiavnica Calvary - Baroque calvary - Architectural and landscape marvel - UNESCO world heritage site
➤ Czechia - Kutna Hora - Gothic St. Barbara's Church - Roman Catholic church - One of the most famous Gothic churches in central Europe - UNESCO world heritage site
➤ Germany - Saxon Switzerland National Park - Hohnstein Castle - Burg Hohnstein - Medieval castle
➤ Spain - Monasterio de Santa María de Poblet - Cistercian monastery, founded in 1151, located at the foot of the Prades Mountains - UNESCO world heritage site
➤ Macedonia - Monastery of Saint Naum - Eastern Orthodox monastery situated along Lake Ohrid - UNESCO world Natural and Cultural Heritage
➤ Italy - Torbole town at shores of famous Lake Garda in Italian Alps
➤ Romania - Transfagarasan Highway - Balea Lake - Beautiful glacier lake situated at 2,034 m in Fagaras Mountains
➤ Swiss - Lago Bianco - Frozen lake at Bernina pass in the Grisons
➤ Spain - Tenerife - Mount Teide - Volcano on Tenerife in Canary Islands
➤ Czechia - Ondrejov Observatory - Principal observatory of the Astronomical Institute of the Academy of Sciences of the Czech Republic
➤ Mongolia - Ger in Gobi Desert
Jordan - Wadi Rum - Stone Arch & Mushroom Rock - UNESCO World Heritage Protected Area
➤ Israel - Timna National Park - Desert setting with mountain terrain & various rock formations
➤ UAE - Jebel Jais Mountain - Tallest mountain in United Arab Emirates at altitude of 1,925 metres (6,315 feet) in Al Hajar Mountains
➤ Morocco - Atlas Mountains
➤ Morocco - Sahara Desert
➤ Kuwait - Desert landscape with palm trees
➤ Bahrain - Tree of Life - 400 year old tree mesquite tree siting at highest point in the barren desert of Bahrain, hundreds of miles from the another natural tree and is thought to have tap roots reaching hundreds of feet down to aquifers
➤ Italy - Tuscany

Photography : Lucie Debelkova ►
Music : Music by SAVFK ►

Other social media channels :
► I n s t a g r a m ≡
► F a c e b o o k ≡
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The beauty in darkness / Krása v temnotě (PF 2013)

HD version here:

Timelapse of 2012 sky phenomena: Moon haloes, Venus transit 2012, NLCs 15th June, airglow, Perseids, storms and total solar eclipse on 13th November. Locations: Seč reservoir, Czech republic (melting ice, Milky way, Venus-Jupiter conjunction, north pole, sunset with fishermen); Kunětická hora, Czech republic (Venus transit); Korčula island, Croatia (Milky way, skywatchers); Ondřejov observatory, Czech republic (Moon haloes, old observatory, storms, NLCs); Pancíř, Czech republic (Milky way, airglow, Perseid fireball); Mulligan Hwy, Australia (solar eclipse, south pole).

Used Canon 550D, Canon 450D; Samyang 8 mm (f3.5), Samyang 14 mm (f2.8), MTO 500/10.

Music: Harry G. Williams: Algiers Ferry; Jason Shaw: Timen Passing By; Kokin Gumi: Feng Shui; Paneye: Feathers From Flooded Colonies.

PF 2013 you all!!!

Petr Pravec | Wikipedia audio article

This is an audio version of the Wikipedia Article:

Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:

Other Wikipedia audio articles at:

Upload your own Wikipedia articles through:

Speaking Rate: 0.8700391109670824
Voice name: en-AU-Wavenet-C

I cannot teach anybody anything, I can only make them think.
- Socrates

SUMMARY
=======
Petr Pravec (born September 17, 1967) is a Czech astronomer and a discoverer of minor planets, born in Třinec, Czech Republic.Pravec is a prolific discoverer of binary asteroids, expert in photometric observations and rotational lightcurves at Ondřejov Observatory. He is credited by the Minor Planet Center with the discovery and co-discovery of 350 numbered minor planets, and is leading the effort of a large consortium of stations called BinAst to look for multiplicity in the near-Earth objects and inner main-belt populations.
He is a member of the Academy of Sciences of the Czech Republic.The main-belt asteroid 4790 Petrpravec, discovered by Eleanor Helin in 1988, is named after him. The official naming citation was published by the Minor Planet Center on 20 June 1997 (M.P.C. 30095).

Moon to Cover Saturn

Moon to Cover Saturn recorded by astronomers from Public Observatory Vsetin (Czech Republic).

Peter Kušnirák | Wikipedia audio article

This is an audio version of the Wikipedia Article:

Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:

Other Wikipedia audio articles at:

Upload your own Wikipedia articles through:

Speaking Rate: 0.9866949957731571
Voice name: en-US-Wavenet-F

I cannot teach anybody anything, I can only make them think.
- Socrates

SUMMARY
=======
Peter Kušnirák (born 1974) is a Slovak astronomer, discoverer of minor planets, and a prolific photometrist of light-curves at Ondřejov Observatory in the Czech Republic.He was the principal observer to discover that the two main-belt asteroids 3073 Kursk and 5481 Kiuchi are in fact binary asteroids. In 1999, he discovered the Eunomian main-belt asteroid 24260 Kriváň, which he named after one Slovakia's national symbols, as well as 21656 Knuth and 20256 Adolfneckař, both located in the Aquarius constellation at the time. He is based out of numerous observatories in the Czech Republic, including the Ondřejov Observatory, and works solo or with partners.
The Flora asteroid 17260 Kušnirák, discovered by the U.S. LINEAR project at Lincoln Lab's ETS in 2000, is named in his honor (M.P.C. 10060).

Moonrise during the partial Lunar eclipse 4K

Moonrise during the partial Lunar eclipse
August 7th, 2017
Observed from Ondřejov, Czech Republic

Earth-grazing meteoroid of 13 October 1990 | Wikipedia audio article

This is an audio version of the Wikipedia Article:

00:00:51 1 Observations
00:03:23 2 Encounter data
00:07:50 3 Physical characteristics
00:09:17 4 Orbit
00:10:50 5 Similar events

Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:

Other Wikipedia audio articles at:

Upload your own Wikipedia articles through:

Speaking Rate: 0.733510433069741
Voice name: en-GB-Wavenet-A

I cannot teach anybody anything, I can only make them think.
- Socrates

SUMMARY
=======
On 13 October 1990, meteoroid EN131090, with an estimated mass of 44 kg, entered the Earth's atmosphere above Czechoslovakia and Poland and, after a few seconds, returned to space. Observations of such events are quite rare; this was the second recorded using scientific astronomical instruments (after the 1972 Great Daylight Fireball) and the first recorded from two distant positions, which enabled the calculation of several of its orbital characteristics. The encounter with Earth significantly changed its orbit and, to a smaller extent, some of its physical properties (mass and structure of its outer layer).

Ondrejov Observatory

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