20103+3715 SEI 942

Coord 2000	20103+3715		Discov num	SEI 942		Comp			Coord arcsec 2000	20 10 18.33 +37 14 43.9
Date first	1896		Date last	2015		Obs	11
Pa first	126		Pa last	122		P.A. Now (θ)	122°
Sep first	7.8		Sep last	7.5		Sep. Now (ρ)	7.5"
Mag pri	11.50		Mag sec	12.00		delta mag (ΔM)	0.5		Spectral class
Pri motion ra	-002		Sec motion ra	+002
Pri motion dec	-005		Sec motion dec	-004
Notes

rPM=0.766 Nature of this double is uncertain.

Precise pa

122.1

Precise sep

7.525

Constellation

Cygnus

Gaia DR2

50941413888

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20103+3715	SEI 942		1998	5	123	7.5	11.50	12.00		D	201018.33+371443.9
20103+3715	SEI 942		2002	6	123	7.6	11.50	12.00		D	201018.33+371443.9
20103+3715	SEI 942		2015	7	122	7.5	11.50	12.00			201018.33+371443.9

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