"In the Ritual (Egyptian Book of the Dead) the reconstruction and rearisen mummy says" I am the great constellation of Orion ( Sahu), dwelling in the solar birthplace in the midst of the spirits." That is, he rises as Orion... At that time the Southern Cross...The sign of the sacrificial offering , the crucified of the solar allegory, so far as the suffering, descending, diminishing sun was ever represented as the crucified."

[Massey, Gerald.: The Historical Jesus and the Mythical Christ, The Book Tree, . p98 ]

The Southern Cross (Crux), as seen after midnight on Dec. 25th, 1AD rising in the south. It is important to point out that just like Virgo the relationship is figurative and different scholars have different hypothesizes about which Equinox / Solstice, the Crux was most traditionally mythologically oriented. Regardless, the association is clear in the astrotheological mythos.

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"The sign of the Cross has been sufficiently identified as a figure of the equinox, and the Christ with the sun of the crossing. Upon this rests the cult of Equinoctial Christolatry... When, in the course of precession, the vernal equinox passed into the sign of Aries, the Ram of Sebek-Ra and of Num-Ra. or the lamb of Mithras typified the Christ that was sacrificed as savior of the world, at which time the crossing and the place or time of sacrifice were identified with the visible Southern Cross."

[Massey, Gerald.: The Historical Jesus and the Mythical Christ, The Book Tree, . p10 ]