11279+0251 STFA 19 AD

11^h 27^m 56.23^s +02° 51' 22.5" P.A. 92.00 sep 761.5 mag 5.05,9.51 Sp G7.5IIIa dist. 172.41 pc (562.4 l.y.)

Coord 2000	11279+0251		Discov num	STFA 19		Comp	AD		Coord arcsec 2000	11 27 56.23 +02 51 22.5
Date first	1875		Date last	2019		Obs	11
Pa first	92		Pa last	92.1		P.A. Now (θ)	92.1°
Sep first	766.5		Sep last	761.5		Sep. Now (ρ)	761.5"
Mag pri	5.05		Mag sec	9.51		delta mag (ΔM)	4.46		Spectral class	G7.5IIIa (yellow)
Pri motion ra	+016		Sec motion ra	-005
Pri motion dec	-010		Sec motion dec	-018
Notes	N (See Notes)

rPM=1.191

This double is not physical.

11279+0251 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Tau Leo	118875	11 27 56 +02 51 22	STFA 19 AB	2019	77	181	89.2	5.05	7.47	2.42
Show		118875	11 27 56 +02 51 22	STFA 19 AD	2019	11	92	761.5	5.05	9.51	4.46		<===
Show		118876	11 27 56 +02 49 54	STFA 19 BC	2019	8	234	102.4	7.47	14.48	7.01
Show		118876	11 27 56 +02 49 54	STFA 19 BD	2019	9	86	767.5	7.47	9.51	2.04
Show			11 27 51 +02 48 48	BUP 9002 CE	2015	14	192	9.2	14.48	14.22	0.26

Quintuple system
5 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Leo		SAO	118875		HIP	55945		Tycho2	0267-01193-1
Gaia DR2	3812336190247422336		HD	99648		HR	4418		GC	15729
BD	BD+03 2504		Bayer	Tau Leonis		Bayer name	Tau Leo		Flamsteed	84 Leonis
Flamsteed name	84 Leo		FK5	1297		Distance	172.41		Distance ly	562.4
Bayer greek	τ Leo