For equatorial coordinates, enter right ascension in hours, declination
in degrees.
For Galactic coordinates, enter longitude and latitude in degrees; the epoch is ignored.
For ecliptic coordinates, enter ecliptic longitude and latitude in
degrees; the epoch is ignored and the obliquity of the ecliptic for
1950 is adopted.
In any system, sexigesimal (e.g., 10 42 27.6) or decimal (e.g., 10.71)
notation may be used, but not mixed in the same coordinate pair.
