06497-2405 S 537 AC

Coord 2000	06497-2405		Discov num	S   537		Comp	AC		Coord arcsec 2000	06 49 44.00 -24 04 33.7
Date first	1825		Date last	2015		Obs	19
Pa first	282		Pa last	282.3		P.A. Now (θ)	282.3°
Sep first	30.3		Sep last	30.266		Sep. Now (ρ)	30.266"
Mag pri	6.56		Mag sec	8.28		delta mag (ΔM)	1.72		Spectral class	A0/1V+A (white/white)
Pri motion ra	-000		Sec motion ra	-000
Pri motion dec	-013		Sec motion dec	-013
Notes	T W (Parallax indicates physical, )

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 264663	172389	06 49 44 -24 04 34	BU 324 AB	2015	31	210	1.8	6.56	7.93	1.37
Show		172389	06 49 44 -24 04 34	S 537 AC	2015	19	282	30.3	6.56	8.28	1.72		<===
Show		172389	06 49 44 -24 04 34	S 537 AD	2015	7	3	30.7	6.56	13.00	6.44
Show		172389	06 49 44 -24 04 35	S 537 BC	2016	4	286	29.8	7.98	8.71	0.73

Quadruple system
4 estimated visually detectable stars in this system

Var name	OV Gem		Constellation	Canis Major		SAO	172389		HIP	32744
Tycho2	6521-03595-1		Gaia DR2	2922212735070622592		HD	49606		HR	2519
GC	8927		ADS	5498		CD	CD-23 4436		CP	CP-23 1518
Flamsteed	33 Geminorum		Flamsteed name	33 Gem		FK5	2526		Distance	245.7
Distance ly	801.47

Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (Gem vs CMa)