In each constellation, there are stars with letters α, β, etc. One, please.

1603, German astronomer Bayer published a catalogue, which was the first time to create a method of marking stars in the order of brightness with Greek letters in each constellation. Therefore, the brightest star in each constellation is generally α star, followed by β, γ, δ ..., followed by the possessive case of the Latin name of the constellation. For example, Sirius, the brightest star in Canis Canis, is "αCa_nis Majoris", abbreviated as "αCMa", which translates into α Canis Canis. But a few are not on the list.

These letters can represent the brightness of stars.

The alpha star is the first bright star, the beta star is the second bright star, the third bright star is the gamma star, the fourth bright star is the delta star, the fourth bright star is the epsilon star, and the fifth bright star is the zeta star.

take for example

Orion α Betelgeuse

Orion β Betelgeuse

Orion γ Betelgeuse

Orion δ mintaka

Orion ε Betelgeuse

Orion zeta Betelgeuse

α α: α α

ββ:ββ

γγ:γγ

δ δ: δ Delta

εε:εε

ζ ζ: Jetta Zeta

ε η: Itaeta

θ θ: West Tower θ

ι ι: Aiota Iota

κ κ κ: kappa kappa kappa

∧λ:λλλλ

μ μ: Jiang Mumu

ν ν: Anger

ξ ξ: Cauchy xi

οο: Omicron, European Michael Wheel

∏π:π

ρ ρ: Soft ρ

Sigma σ: Sigma Sigma

τ τ: Set τ

υ υ: Yupuxilong

Φ φ: Φ φ.

χ χ: organ qi

ψ ψ: Psy Psi

ωω:ωω。