B = the total of the brightness of each star in the constellation (in units of the brightness of a star of magnitude 0) over the brightness of a star of magnitude 6. Stars of magnitude 6 or dimmer do not contribute. A = the solid angle or area (in square degrees) covered by the constellation. = the right ascension (in degrees relative to the equinox of J2000.0) of the weigthed average of the position of all stars in the constellation. Î´ = the declination (in degrees relative to the equinox of J2000.0) of the weigthed average of the position of all stars in the constellation.