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Astronomy and Space Sciences

Astronomical Observation

The Messier Catalog

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M11

Wild Duck Cluster, Open Cluster in Scutum

M25

Open Cluster in Sagittarius

Globular Cluster in Aquarius

M17

Omega Nebula or Swan Nebula, Emission Nebula in Sagittarius

M30

Globular Cluster in Capricornus

M19

Globular Cluster in Ophiuchus

M23

Open Cluster in Sagittarius

Globular Cluster in Serpens

Globular Cluster in Ophiuchus

M29

Open Cluster in Cygnus

M18

Open Cluster in Sagittarius

Globular Cluster in Canes Venatici

M16

Eagle Nebula, Star Forming Region in Serpens

M24

Sagittarius Star Cloud, Milky Way Patch in Sagittarius

Crab Nebula, Supernova Remnant

Lagoon Nebula, Emission Nebula in Sagittarius

M13

Great Hercules Cluster, Globular Cluster in Hercules

M15

Globular Cluster in Pegasus

M20

Trifid Nebula, Star Forming Region in Sagittarius

M22

Globular Cluster in Sagittarius

M28

Globular Cluster in Sagittarius

Ptolemy's Cluster, Open Cluster in Scorpius

M12

Globular Cluster in Ophiuchus

M21

Open Cluster in Sagittarius

M10

Globular Cluster in Ophiuchus

Globular Cluster in Scorpius

Butterfly Cluster, Open Cluster in Scorpius

M27

Dumbbell Nebula, Planetary Nebula in Vulpecula

M14

Globular Cluster in Ophiuchus

M26

Open Cluster in Scutum

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