George's Random Astronomical Object
- Autor: Vários
- Narrador: Vários
- Editora: Podcast
- Duração: 28:26:10
- Mais informações
Informações:
Sinopse
Science discussions about astronomical objects selected at random locations in the sky.
Episódios
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Object 169: No Longer a Suspect
16/02/2026 Duração: 09minLGS 3 (also known as the Pisces Dwarf Galaxy) is a nearby but faint dwarf galaxy that has provided some interesting clues as to how stars formed in the early universe.
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Object 168: A Very Good Looking Scientific Footnote
02/02/2026 Duração: 07minWhile not many professional astronomers have spent much time looking at the open cluster Messier 103, it is still a spectacular object to see in an amateur astronomy telescope.
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Object 167: Controversial Radiowaves
19/01/2026 Duração: 09minAstronomers have been studying the radiowave emission from the cluster of galaxies Abell 4038 quite intently and have provided both conventional and unconventional explanations for its origin.
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Object 166: An Overlooked Cluster
05/01/2026 Duração: 10minThe southern open cluster IC 2602, also known as the Theta Carinae Cluster or the Southern Pleiades, may not be as famous as some open clusters visible from the Northern Hemisphere, but it is still a good place for professional astronomers to study young stars, and it's also a good amateur astronomy target.
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Object 165: A Hole in the Clouds
22/12/2025 Duração: 08minBaade's Window is an unusual hole through the interstellar dust in the Milky Way's disk through which astronomers can very clearly see the stars near the center of our galaxy.
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Object 164: Not Just Any Quasar But The Quasar
08/12/2025 Duração: 11minMarkarian 231 is now widely recognized not only as the closest quasar to Earth but also as a very bright ultraluminous infrared galaxy.
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Object 163: Ludricous Rotation
24/11/2025 Duração: 07minThe pulsar PSR J1022+1001 is one of a small subclass of pulsars named millisecond pulsars because they rotate one every few milliseconds.
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Object 162: Slightly More Interesting Than a Medieval Anglo-Gallic Coin
10/11/2025 Duração: 09minThe lenticular galaxy NGC 1172 contains two different populations of globular clusters, which indicates something about the history of the galaxy.
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Object 161: More Subclassifications
27/10/2025 Duração: 08minDy Pegasi is an SX Phoenicis type variable star, and SX Phoenicis type variable stars are a subset of Delta Scuti type variable stars, and this episode explains why that is confusing but what it also actually means.
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Object 160: A Spiral Galaxy Using a Non-Standard Font
13/10/2025 Duração: 08minThe spiral galaxy NGC 3718 has an unusually weird spiral shape, which belies its unusual history.
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Object 159: That One Very Famous Double Star
29/09/2025 Duração: 08minWhile amateur astronomers know that Albireo is a very spectacular-looking double star, professional astronomers are more interested in the dynamical complexities of Albireo's two star systems.
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Object 158: Dark Burst
15/09/2025 Duração: 08minThe gamma ray burst GRB 020819 took place in a galaxy containing so much light-obscuring interstellar dust that people initially misidentified which galaxy contained the burst.
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Object 157: Something More Interesting than Three Exoplanets
01/09/2025 Duração: 08minThe nearby Sun-like star HD 69830 may have three exoplanets orbiting it, but astronomers seem more focused on trying to understand a hard-to-explain dust disk in the star system.
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Object 156: Dust Puffs
18/08/2025 Duração: 07minZ Ursa Minor belongs to a class of variable stars that occasionally produce puffs of dust, but this is not the weeirdest thing about them.
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Object 155: Pinwheel
04/08/2025 Duração: 11minThe nearby face-on spiral galaxy Messier 101 is one of the most popular galaxies in the sky for astronomers to study, particularly in terms of studying the relative abundances of various elements within the galaxy.
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Object 154: The Binary Star System That Needed to Go on Hiatus
21/07/2025 Duração: 08minA 0535+26 is a rather unusual star system called a Be high mass X-ray binary that periodically produces bursts of X-ray emission.
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Object 153: A Wolf Within a Wolf
07/07/2025 Duração: 07minHen 2-113 is a rather unusual planetary nebula that formed not when a Sun-like star died but when a large, massive, and extraordinarily hot Wolf-Rayet star blew away its outer hydrogen layers.
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Object 152: The Spiderweb Flashlight
23/06/2025 Duração: 08minThe quasar PKS 2126-158 has been popular to observe because astronomers can see many different things between the quasar and Earth, including an entire cluster of galaxies, that are absorbing light from the quasar.
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Object 151: A Magnetic Whale
09/06/2025 Duração: 07minBeta Ceti is a relatively close giant star where helium fusion has been triggered in its core, but it's a bit unusual compared to other stars that have reached this stage in their evolution.
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Object 150: And Now for Something Completely the Same
26/05/2025 Duração: 09minWolf 1069 is another nearby red dwarf with an exoplanet, but this time, the exoplanet is more likely to harbor life than other nearby red dwarfs with exoplanets that I may have discussed in previous episodes.