Barred Spiral Galaxy
CHF 48.05
Auf Lager
SKU
5TU4U70L6CG
1 Verfügbar 
Kostenloser Versand ab CHF 50
Geliefert zwischen Mo., 13.10.2025 und Di., 14.10.2025
Details
A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. Bars are found in approximately half of all spiral galaxies. Bars generally affect both the motions of stars and interstellar gas within spiral galaxies and can affect spiral arms as well. Edwin Hubble classified these types of spiral galaxies as "SB" (Spiral, Barred) in his Hubble sequence, and arranged them into three sub-categories based on how open the arms of the spiral are. SBa types feature tightly bound arms, while SBc types are at the other extreme and have loosely bound arms. SBb type galaxies lie in between. A fourth type, SBm, was subsequently created to describe somewhat irregular barred spirals, such as the Magellanic Cloud galaxies, which were once classified as irregular galaxies, but have since been found to contain barred spiral structures.Among other types in Hubble's classifications for the galaxies are : Spiral galaxy , elliptical galaxy and irregular galaxy . In 2005, observations by the Spitzer Space Telescope backed up previously collected evidence that suggested the Milky Way is a barred spiral galaxy.
30 Tage Rückgaberecht
GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786130713614
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Genre Physik & Astronomie
- EAN 9786130713614
- Format Fachbuch
- Titel Barred Spiral Galaxy
- Herausgeber Alphascript Publishing
- Anzahl Seiten 120
Bewertungen
Schreiben Sie eine Bewertung
