Description
The star maps below cover Hevelius's catalog, constellation by constellation, in the equatorial and ecliptic coordinate systems corresponding to the catalog's equinox January 1st 1661 (1660 annum completum) of the Gregorian calendar, or
Julian Day | 2,327,729 |
Besselian epoch | B1661.0043… |
Julian epoch | J1661.0102… |
Hevelius's stars are represented by blue disks with a solid border for ordinary stars and a dotted border for nebulous objects. Hevelius's nebulous objects are
HNO | HID | Note | |
---|---|---|---|
32 | And | 32 | Andromeda galaxy M31 |
259 | Cnc | 3 | Præsepe cluster M44 |
380 | Cap | 5 | σ Cap |
381 | Cap | 6 | π Cap |
382 | Cap | 7 | ο Cap |
794 | Her | 29 | z Her |
The Hercules and Capricornus objects are in fact ordinary stars; their nebulous attribute has its origin in Tycho Brahe's catalog.
Reference stars, the same as on the reference maps are represented by crosses. Hevelius stars are linked to their corresponding star, according to the identifications file ident_o.dat, by a line segment.
Maps
The maps are enumerated in the same order as the constellations in Hevelius's catalog, with a few exceptions: Antinous is merged with Aquila, Cerberus is merged with Hercules, and Triangulum Minus is merged with Triangulum.