Well obviously...
An equinox occurs twice a year (around 20 March and 22 September), when the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the center of the Sun being in the same plane as the Earth's equator. The term equinox can also be used in a broader sense, meaning the date when such a passage happens. The name "equinox" is derived from the Latin aequus (equal) and nox (night), because around the equinox, the night and day have approximately equal length.
...but you already knew that.
Yeah, I know what an equinox is, but the was the ship a reference to a story about tapping into other worldly powers and the horrific consequences of that?
Probably not.
And Turd... Never for a second believe that come 2403 that Kathryn Janeway isn't going to be wracked with regret, and argue with herself until she accepts that if she cuts another two years off the journey that she can save Joe Carey and half a dozen more crewmen and frankly if Admiral Janeway could have gone back in time just one more year, then she could have saved what remained of Equinox's crew and stopped them from harvesting those space beasites...
Ad-meer-reel Janeway went back when she did because Voyager was close to the Borg hub. Going back a year further might change events too much and jeopordize saving her precious Seven and poor Chakotay's feelings.
Still no reason not to save Carey, though.