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19504+3412
SEI 694

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

19504+3412 SEI 694

19^h 50^m 23.21^s +34° 12' 04.6" P.A. 175.00 sep 24.2 mag 11.20,12.19

Coord 2000	19504+3412		Discov num	SEI 694		Comp			Coord arcsec 2000	19 50 23.21 +34 12 04.6
Date first	1894		Date last	2015		Obs	12
Pa first	181		Pa last	175		P.A. Now (θ)	175°
Sep first	26.6		Sep last	24.2		Sep. Now (ρ)	24.2"
Mag pri	11.20		Mag sec	12.19		delta mag (ΔM)	0.99		Spectral class
Pri motion ra	-016		Sec motion ra	-001
Pri motion dec	-024		Sec motion dec	-003
Notes

rPM=0.895

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	175.1		Precise sep	24.216		Constellation	Cygnus		Tycho2	2677-00062-1
Gaia DR2	2035400399073631872

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19504+3412	SEI 694		1998	5	176	24.6	11.20	12.20		D	195023.21+341204.6
19504+3412	SEI 694		2002	6	176	24.5	11.20	12.20		D	195023.21+341204.6
19504+3412	SEI 694		2010	7	177	23.8	11.20	12.19			195023.21+341204.6
19504+3412	SEI 694		2015	8	175	24.2	11.20	12.19			195023.21+341204.6

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