https://masteringthezodiac.com/midpoint-method
all longitudes J2000
when using swe, set sid mode to 18, J2000
and call swe.fixstar with swe.FLG_SIDEREAL

Aries
	Mesarthim ,gaAri
	Botein	,deAri
Taurus
	Omicron Tauri 51.1675
	Tianguan	,zeTau
Gemini
	1 Geminorum 90.9519
	Kappa Geminorum 113.6714
Cancer
	Chi Cancri 120.9783
	Acubens	,alCnc
Leo
	Al Minlear - Kappa Leonis 135.3008
	Denebola ,beLeo
Virgo
	Nu Virginis 174.1608
	Rijl al Awwa ,muVir
Libra
	Zubenelgenubi ,al-2Lib
	48 Librae 240.3950
Scorpio
	Dschubba ,deSco
	Paikauhale 240.3950
Ophiucus
	Sabik ,etOph
	45 Ophiuci 262.8753
Sagittarius
	Alnasl ,ga-2Sgr
	Terebellium ,omeSgr
Capricorn
	Dabih ,beCap
	Deneb Algedi ,deCap
Aquarius
	Iota Aquarii 328.7161	
	Phi Aquarii 347.1364
Pisces
	Gamma Piscium 351.4514	
	Alrescha ,alPsc
