This photograph shows an unusual sky field in the Milky Way band. It is centered on one of the classical, dark globules, known as Barnard 68 (B68). It appears as a compact, opaque and rather sharply defined object against a rich, background star field.
2024-12-06 1350词 晦涩
These shadowy expanses have many sobriquets—dark nebulae, dust clouds, knots—but I prefer to call them Bok globules, a name they received in honor of Dutch-American astronomer Bart Bok, who studied them.
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