Sinopsis
Science discussions about astronomical objects selected at random locations in the sky.
Episodios
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Object 78: A Dwarf Galaxy with Something for Everyone
25/07/2022 Duración: 12minLocated within the Local Group, the dwarf galaxy IC 1613 has been popular with professional astronomers for a variety of reasons, and it is also a notable albeit difficult-to-see amateur astronomy object as well.
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Object 77: Another 90's Gamma Ray Flashback
11/07/2022 Duración: 10minGRB 980326 was the first gamma ray burst to be associated with a supernova, which was truly groundbreaking even if the astronomers who discovered it were probably using Netscape at the time.
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Object 76: A Modern Non-Comet
27/06/2022 Duración: 08minSakurai's Object was discovered in 1996 by the amateur astronomer Yukio Sakurai, who had been searching for comets but who had instead found a dying star that had brifly undergone a final burst of fusion, causing it to increase dramatically in brightness.
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Object 75: The Completely Unconcerned Open Cluster
13/06/2022 Duración: 09minThe open cluster NGC 3680 is 1.4 billion years old, making it unusually long-lived for such a cluster.
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Object 74: The Brightest Star on the Argo
30/05/2022 Duración: 12minAs the second brightest star in the night sky, Canopus is associated with many different myths, yet as the closest yellow supergiant to Earth, the star is also scientifically important.
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Object 73: A Very Distant Infrared Smudge
16/05/2022 Duración: 14minThe hyperluminous infrared galaxy IRAS 10214+4724 was the most distant infrared object seen by astronomers in the 1980s.
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Object 72: No Face Masks Are Needed for Monocerotis
02/05/2022 Duración: 08minGX Monocerotis is a evolved star near the end of its life that is expelling its outer gas layers, and because the star is in orbit in a binary star system, those gas layers have formed a spiral pattern.
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Object 71: The Black Hole That Didn't Get Its Morning Coffee
18/04/2022 Duración: 09minThe center of the barred spiral galaxy contains multiple regions where stars are forming as well as an inactive supermassive black home that needs some caffeine.
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Object 70: The Uncredited Star
04/04/2022 Duración: 08minEta Aquilae was the first Cepheid variable ever discovered, but this class of stars was named after Delta Cephei instead.
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Object 69: How To Avoid Photobombing Asteroids
21/03/2022 Duración: 11minThe North Ecliptical Pole points to a location perpendicular to the plane of the Solar System, which makes it a unique place for certain types of astronomical observations.
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Object 68: Reflections in Quotation Marks
07/03/2022 Duración: 09minThe spiral galaxy NGC 6814 is a source of strong but variable X-ray emission that astronomers are using to measure the mass of a supermassive black hole at its center.
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Object 67: The Weird Sphere
21/02/2022 Duración: 12minThe abnormal-looking globular cluster Messier 71 is unusual in that its stars contain an excessive amount of heavy elements and in that it is being gravitationally shredded by the Milky Way.
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Object 66: This Episode Brought to You by the Letter B
07/02/2022 Duración: 14minThe binary star system b Centauri contains an exoplanet named b Centauri b that, despite its confusing name, has changed astronomers' perspectives on how and where planets can form.
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Object 65: The Infrared Twin
24/01/2022 Duración: 10minEven though HD 106252 has an exoplanet orbiting it, astronomers are much more interested in the fact that HD 106252 looks very similar to the Sun.
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Object 64: An Actual Use for Einstein's Famous Equation
10/01/2022 Duración: 11minVER J0521+211 is a distant galaxy that produces gamma rays with such high energy that, when the gamma rays hit the Earth's atmosphere, the photons transform into electrons and positrons.
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Object 63: A Rant About Variable Star Classifications
27/12/2021 Duración: 09minUX Ari is an RS CVn type variable star system, which is a confusing way to classify variable star systems but which means that UX Ari contains two stars very close together with complex, interacting magnetic fields that produce all sorts of weird effects.
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Object 62: Imaged Before the Hubble Space Telescope Was Fixed
13/12/2021 Duración: 08minNGC 7457 was one of the first things imaged by the Hubble Space Telescope, which meant that the images of it were relatively blurry, but this is not the most interesting fact about this lenticular galaxy.
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Object 61: Greater Than One
29/11/2021 Duración: 13minSPT-CL J0546-5345 is an abnormally large cluster that formed very quickly after the Big Bang, which places some strong constraints of models of the formation and evolution of the universe.
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Object 60: Conclusively Inconclusive
15/11/2021 Duración: 09minUM 425 could be either a pair of very similar quasars at the same distance from Earth or a single quasar that has been gravitationally lensed so that it appears twice in the sky.
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Object 59: Do Not Confuse With VV Cephei
01/11/2021 Duración: 07minVW Cephei is an eclipsing binary star system containing two stars that are so close that they share an outer gas layer.