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Doubles in session

Current system

20222+2244
GRV 335

Selections

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

20222+2244 GRV 335

20^h 22^m 15.11^s +22° 44' 30.4" P.A. 27.00 sep 49.2 mag 11.20,12.40

Coord 2000	20222+2244		Discov num	GRV 335		Comp			Coord arcsec 2000	20 22 15.11 +22 44 30.4
Date first	1892		Date last	2015		Obs	10
Pa first	28		Pa last	27		P.A. Now (θ)	27°
Sep first	47.5		Sep last	49.2		Sep. Now (ρ)	49.2"
Mag pri	11.20		Mag sec	12.40		delta mag (ΔM)	1.2		Spectral class
Pri motion ra	-017		Sec motion ra	-011
Pri motion dec	-019		Sec motion dec	-012
Notes

rPM=0.362

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	27.4		Precise sep	49.185		Constellation	Vulpecula		SAO	88581
Tycho2	2155-01194-1		Gaia DR2	1829508944006864384

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20222+2244	GRV 335		2000	4	27	49.1	11.20	12.40		D	202215.11+224430.4
20222+2244	GRV 335		2001	5	28	49.0	11.20	12.40		D	202215.11+224430.4
20222+2244	GRV 335		2010	5	28	49.0	11.20	12.40			202215.11+224430.4
20222+2244	GRV 335		2015	6	27	49.2	11.20	12.40			202215.11+224430.4

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