Description
The star maps below represent the stars of Kepler's catalogs along with bright stars according to modern catalogs. They correspond to the same epoch and equinox as Tycho's catalogs: January 1, 1601 of the Julian calendar.
The stars from Kepler's version of Tycho's catalog and from Kepler's Secunda and Tertia Classis catalogs are represented in different colors according to the legend shown on the maps.
The representation and labeling of stars follows the conventions explained on the historical catalogs page.
A dotted line connects catalog stars to corresponding reference stars according to the identifications collected in ident_o.dat (see the identifications page for details).
Maps by constellation
The maps below represent the stars of Kepler's catalogs one constellation at a time.
Secunda Classis maps
Every constellation containing at least one Secunda Classis star is represented. Additional maps for Columba and Microscopium handle the overflow.
Cepheus
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Boötes
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Hercules
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Cygnus
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Ophiuchus
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Serpens Caput
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Serpens Cauda
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Andromeda
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Aries
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Taurus
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Gemini
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Cancer
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Virgo
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Libra
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Scorpius
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Sagittarius
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Aquarius
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Pisces
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Cetus
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Eridanus (North)
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Eridanus (South)
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Canis Major
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CMa (in Col)
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CMa (in Mon)
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Navis (Puppis)
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Navis (Vela)
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Navis (Carina)
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Hydra (West)
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Hydra (East)
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Centaurus
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Lupus
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Ara
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Corona Australis
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Piscis Austrinus
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PsA (in Mic)
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Tertia Classis maps
There is one map for every constellation involved in Tertia Classis and one for Octans to cover the overflow from Hydrus.
Grus
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Phoenix
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Indus
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Pavo
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Apus
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Musca
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Chamaeleon
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Triangulum Australe
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Volans
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Dorado
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Tucana
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Hydrus
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Hydrus in Octans
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Maps by coordinate range
The following maps cover the whole celestial sphere. They are delimited by equatorial coordinate lines of the B1875.0 equatorial coordinate system. They use the stereographic projection as well.
North Pole
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90° ~ 65° | |||||
| 22h ~ 18h | 18h ~ 14h | 14h ~ 10h | 10h ~ 6h | 6h ~ 2h | 2h ~ 22h | |
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70° ~ 20° |
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25° ~ -25° |
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-20° ~ -70° |
| 22h ~ 18h | 18h ~ 14h | 14h ~ 10h | 10h ~ 6h | 6h ~ 2h | 2h ~ 22h | |
South Pole |
-65° ~ -90° | |||||
Maps by hemisphere
The following maps, in the azimuthal equidistant projection, cover celestial hemispheres seen from the six main directions of the B1875.0 coordinate system. They present the same contents as the maps above.
North
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Capricorn
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Libra
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Cancer
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Aries
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South
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