21039+4138 STTA 214 AB (HD 200723)

21^h 03^m 52.13^s +41° 37' 41.4" P.A. 184.00 sep 57.4 mag 6.37,8.64 Sp F3IV dist. 96.34 pc (314.26 l.y.)

Coord 2000	21039+4138	Discov num	STTA214	Comp	AB	Coord arcsec 2000	21 03 52.13 +41 37 41.4
Date first	1875	Date last	2018	Obs	34
Pa first	185	Pa last	184.4	P.A. Now (θ)	184.4°
Sep first	57.4	Sep last	57.378	Sep. Now (ρ)	57.378"
Mag pri	6.37	Mag sec	8.64	delta mag (ΔM)	2.27	Spectral class	F3IV (yellow-white)
Pri motion ra	-002	Sec motion ra	-001
Pri motion dec	-054	Sec motion dec	-055
Notes	N T (See Notes, Parallax indicates physical)

rPM=0.026 (< 0.3, Physical double)

This double is physical.

21039+4138 SYSTEM COMPONENTS

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS