George's Random Astronomical Object podcast

Object 161: More Subclassifications

27/10/2025

George's Random Astronomical Object

0:00

8:14

Dy 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.

Otros episodios de "George's Random Astronomical Object"

Object 163: Ludricous Rotation
24/11/2025
7:22
The pulsar PSR J1022+1001 is one of a small subclass of pulsars named millisecond pulsars because they rotate one every few milliseconds.
Object 162: Slightly More Interesting Than a Medieval Anglo-Gallic Coin
10/11/2025
9:26
The 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
8:14
Dy 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.
Object 160: A Spiral Galaxy Using a Non-Standard Font
13/10/2025
8:47
The spiral galaxy NGC 3718 has an unusually weird spiral shape, which belies its unusual history.
Object 159: That One Very Famous Double Star
29/9/2025
8:58
While 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.
Object 158: Dark Burst
15/9/2025
8:11
The 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.
Object 157: Something More Interesting than Three Exoplanets
1/9/2025
8:23
The 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.
Object 156: Dust Puffs
18/8/2025
7:56
Z Ursa Minor belongs to a class of variable stars that occasionally produce puffs of dust, but this is not the weeirdest thing about them.
Object 155: Pinwheel
4/8/2025
11:21
The 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.
Object 154: The Binary Star System That Needed to Go on Hiatus
21/7/2025
8:47
A 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 161: More Subclassifications

George's Random Astronomical Object

Otros episodios de "George's Random Astronomical Object"

Object 163: Ludricous Rotation

Object 162: Slightly More Interesting Than a Medieval Anglo-Gallic Coin

Object 161: More Subclassifications

Object 160: A Spiral Galaxy Using a Non-Standard Font

Object 159: That One Very Famous Double Star

Object 158: Dark Burst

Object 157: Something More Interesting than Three Exoplanets

Object 156: Dust Puffs

Object 155: Pinwheel

Object 154: The Binary Star System That Needed to Go on Hiatus