20250+3034 HDS2921

Coord 2000	20250+3034		Discov num	HDS2921		Comp			Coord arcsec 2000	20 25 02.55 +30 34 05.4
Date first	1991		Date last	2009		Obs	3
Pa first	356		Pa last	356		P.A. Now (θ)	356°
Sep first	0.8		Sep last	0.8		Sep. Now (ρ)	0.8"
Mag pri	8.10		Mag sec	11.04		delta mag (ΔM)	2.94		Spectral class	G2Ib-II (yellow)
Pri motion ra	+007		Sec motion ra	+004
Pri motion dec	-007		Sec motion dec	-006
Notes

rPM=0.319 Nature of this double is uncertain.

Precise pa	356.1		Precise sep	0.81		Constellation	Cygnus		SAO	69987
HIP	100708		Tycho2	2685-01750-1		Gaia DR2	11539519488		HD	194525
BD	BD+30 4023		Distance	400		Distance ly	1304.8

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20250+3034	HDS2921		1991	2	356	0.8	8.10	11.04	G2Ib-II	D	202502.55+303405.4
20250+3034	HDS2921		2009	3	356	0.8	8.10	11.04	G2Ib-II	D	202502.55+303405.4

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