Some astrologer always identify fixed star capulus as Messier 34 however I did a bit study on this topic.
I had a similar question several years ago and I did a bit of star map comparison, I think there is a mix up position between Messier 34 and double cluster NGC869. If we compare the image in Anthony’s post and the astronomical star map ( from SkySafari pro app ), M34 is in a different position in two different maps. In the map from SkySafari Messier 34 should be around Algol and not above the star Miram. M34’s position today should be 22° 04, in this case and Antony’s calculation should be correct, in 2000 it is around 21°
44.
From the old star map we know,and if Capulus has been described as the sword hand of Perseus. If we compare the position in the star map Anthony provide, and the SkySafari star map , it could be the position of NGC 869, today we call it Double cluster ( together with NGC 884. )
Double clusters were first recorded by Hipparchus as a patch of light in Perseus and also recorded in Abd al-Rahman al-Sufi’s Book of Fixed Stars. The position of NGC869 in 2000 is 24°10′ (R.A 02h19.1m, +57° 09′ J2000 epoch).
However, M34 may only have been discovered around 1645 by Giovanni Batista Hodierna and is only visible with the naked eye in very dark conditions.
Perhaps the position of the Capulus in the software Solar Fire, Janas use the position of NGC869.
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screenshot captured from Stellarium