Preposition: of

• position: The original equinox of the position as supplied to the HEASARC was 2000.

Converse of object

• specify: Specify the equinox of the input coordinates, all coords are output as J2000.

• use: Note that the coordinates in the file use the 1975 equinox.

• call: We choose a fixed point on the celestial equator, called the vernal equinox, or the First Point of Aries.

• request: RA The nominal right ascension of the XMM-Newton pointing, in the requested equinox.

• mark: Around March 21, the sun is in the middle of its swing and will rise at due east, marking the vernal equinox.

Adjective modifier

• vernal: The same happens at the spring or vernal equinox on the 21st March.

• autumnal: September 21 was the " official " date of the autumnal equinox.

• selected: Dec The declination of the object in the selected equinox.

• specified: Ra The RA of the supernova in the specified equinox.

• mean: Ecliptic and equatorial co-ordinates are referred to the mean equinox of a given epoch.

Modifies a noun

• j2000: RA The Right Ascension ( equinox J2000 ) of the EUV source.

• point: The Galaxy itself connects to our zodiac at the equinox points, in an angle of 60 deg - a sextile!

• condition: The coupled model was run for equinox conditions during Solar Minimum.

• year: RA Source RA ( displayed at the current equinox year ).

Noun used with modifier

• autumn: From the autumn equinox the setting sun moves gradually south along the western horizon.

• default: Dec The declination of the target in the default equinox.

• fall: In fact, on the days of the spring and fall equinox the length of daylight is actually longer than darkness by several minutes.

• output: Output equinox: Give stellar co-ordinates in J2000 or B1950 epoch.