TOML

Galaxy Classification - TOML

Galaxy classification is a morphological classification system proposed by Edwin Hubble in 1926, which categorizes galaxies into five main types based on their visual appearance: elliptical, lenticular, spiral, barred spiral, and irregular galaxies. Known as the 'Hubble Tuning Fork,' this classification remains widely used as a foundation in astronomy nearly a century later. It was later extended by Gérard de Vaucouleurs and continues to play an important role in modern galactic research.

astronomy galaxy Hubble classification morphological classification universe

[[items]]
code = "E"
slug = "elliptical"
name = "Elliptical Galaxy"
description = "Galaxies with shapes ranging from spherical to flattened ellipsoidal forms."
position = "early-type"
symbol = "E"

[[items]]
code = "S0"
slug = "lenticular"
name = "Lenticular Galaxy"
description = "Galaxies with intermediate characteristics between elliptical and spiral galaxies."
position = "early-type"
symbol = "S0"

[[items]]
code = "S"
slug = "spiral"
name = "Spiral Galaxy"
description = "Galaxies with flat disk structures and spiral arms extending from central bulges."
position = "late-type"
symbol = "S"

[[items]]
code = "SB"
slug = "barred-spiral"
name = "Barred Spiral Galaxy"
description = "Galaxies with a bar-shaped structure at the center and spiral arms extending from both ends."
position = "late-type"
symbol = "SB"

[[items]]
code = "Irr"
slug = "irregular"
name = "Irregular Galaxy"
description = "Galaxies lacking clear symmetry that do not fit into other categories."
position = "late-type"
symbol = "Irr"