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Star Atlas

The interactive Star Atlas lets you pan around and zoom into the 24 full-color maps originally published in Astronomy's Atlas of the Stars. These charts show you constellation stick figures and official boundaries, 1,000 deep-sky objects — such as star clusters, nebulae, and galaxies — and 45,000 stars down to magnitude 8.0.

The atlas divides the sky into five map sets: North Polar (Maps 1 through 3); North Equatorial (Maps 4 through 9); Equatorial Region (Maps 10 through 15); South Equatorial (Maps 16 through 21); and South Polar (Maps 22 through 24). Charts in each group progress in right ascension (the celestial equivalent of longitude), and adjoining maps overlap.

To access Star Atlas, you must be an Astronomy subscriber and have Adobe's Flash Player installed; you can download it here. The atlas will open in a new browser window. You can navigate the sky either by using the map index below or by clicking on the buttons bordering each chart.

FREE PREVIEW

m52_noao_250

The Queen's clusters

M52 is an open star cluster located in Cassiopeia.
Map 2: North Polar 2
Ursa Major to Draco
Map 3: North Polar 3
Draco to Cassiopeia
Map 4: North Equatorial 1
Pegasus to Taurus
Map 5: North Equatorial 2
Perseus to Cancer
Map 6: North Equatorial 3
Gemini to Coma Berenices
Map 7: North Equatorial 4
Ursa Major to Hercules
Map 8: North Equatorial 5
Boötes to Cygnus
Map 9: North Equatorial 6
Lyra to Andromeda
Map 10: Equatorial Region 1
Pisces to Eridanus
Map 11: Equatorial Region 2
Eridanus to Hydra
Map 12: Equatorial Region 3
Cansis Minor to Virgo
Map 14: Equatorial Region 5
Serpens Caput to Aquila
Map 13: Equatorial Region 4
Virgo to Ophiuchus
Map 15: Equatorial Region 6
Aquila to Pisces
Map 16: South Equatorial 1
Sculptor to Caelum
Map 17: South Equatorial 2
Fornax to Pyxis
Map 18: South Equatorial 3
Canis Major to Centaurus
Map 19: South Equatorial 4
Hydra to Scorpius
Map 20: South Equatorial 5
Libra to Microscopium
Map 21: South Equatorial 6
Sagittarius to Sculptor
Map 22: South Polar 1
Eridanus to Centaurus
Map 24: South Polar 3
Corona Australis to Horologium
Map 23: South Polar 2
Vela to Telescopium
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