General astronomy

General astronomy

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General astronomy

Andromeda I

Astronomy; General astronomy

Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group.

Andromeda II

Astronomy; General astronomy

Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group.

Andromeda III

Astronomy; General astronomy

Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group.

anomalous Zeeman effect

Astronomy; General astronomy

Zeeman effet in which spectral lines are split into several components, in contrast to the normal Zeeman effect which results in only two distinct components.

Antares

Astronomy; General astronomy

(alpha Sco, HR 6134) A red M1 Ib supergiant. It has a B3 V companion, which is a radio source.

Ap star

Astronomy; General astronomy

1) Peculiar A-type stars ("magnetic" A stars) that show abnormally strong lines, sometimes of varying intensity, of certain ionized metals. Recent evidence indicates that all Ap stars are slow ...