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19471+3441
GRV 277

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19471+3441 GRV 277

19^h 47^m 09.73^s +34° 41' 06.1" P.A. 22.00 sep 22.9 mag 11.96,14.18

Coord 2000	19471+3441		Discov num	GRV 277		Comp			Coord arcsec 2000	19 47 09.73 +34 41 06.1
Date first	1998		Date last	2015		Obs	5
Pa first	23		Pa last	22		P.A. Now (θ)	22°
Sep first	23.0		Sep last	22.9		Sep. Now (ρ)	22.9"
Mag pri	11.96		Mag sec	14.18		delta mag (ΔM)	2.22		Spectral class
Pri motion ra	+015		Sec motion ra	+055
Pri motion dec	-021		Sec motion dec	+021
Notes

rPM=0.985

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	21.7		Precise sep	22.917		Constellation	Cygnus		Tycho2	2664-00591-1
Gaia DR2	2047476090435039616

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19471+3441	GRV 277		2000	2	23	23.0	11.70	13.90		D	194709.73+344106.1
19471+3441	GRV 277		2002	3	23	23.0	11.70	13.90		D	194709.73+344106.1
19471+3441	GRV 277		2010	4	21	22.8	11.96	14.18			194709.73+344106.1
19471+3441	GRV 277		2015	5	22	22.9	11.96	14.18			194709.73+344106.1

If you need more information about this double, apply for a data request form to the WDS.