From all the listed objects, select those that are in the Galactic halo: blue giants, red giants, red dwarfs, short-period Cepheids

From all the listed objects, select those that are in the Galactic halo: blue giants, red giants, red dwarfs, short-period Cepheids, long-period Cepheids, gas and dust clouds, globular star clusters, open star clusters.

Red giants, short-period Cepheids, red dwarfs, globular star clusters.

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