20105+2920 BRT 46 AB

20^h 10^m 28.74^s +29° 20' 04.8" P.A. 79.00 sep 5.3 mag 11.24,11.80

Coord 2000	20105+2920		Discov num	BRT 46		Comp	AB		Coord arcsec 2000	20 10 28.74 +29 20 04.8
Date first	1893		Date last	2015		Obs	19
Pa first	78		Pa last	78.9		P.A. Now (θ)	78.9°
Sep first	4.3		Sep last	5.269		Sep. Now (ρ)	5.269"
Mag pri	11.24		Mag sec	11.80		delta mag (ΔM)	0.56		Spectral class
Pri motion ra	+011		Sec motion ra	+013
Pri motion dec	+001		Sec motion dec	+001
Notes	N (See Notes)

rPM=0.153 (< 0.3, Physical double)

This double is physical.

20105+2920 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 10 29 +29 20 05	BRT 46 AB	2015	19	79	5.3	11.24	11.80	0.56		<===
Show		88297	20 10 29 +29 20 05	MLB 477 AC	2018	11	24	113.7	11.24	7.59	3.65
Show		88297	20 10 32 +29 21 50	HDS 2874 Ca,Cb	2012	3	251	0.4	7.61	11.49	3.88

Quadruple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Vulpecula

Gaia DR2

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