20153+5428 TDT2123

Coord 2000	20153+5428		Discov num	TDT2123		Comp			Coord arcsec 2000	20 15 20.10 +54 27 40.3
Date first	1991		Date last	1991		Obs	1
Pa first	328		Pa last	328		P.A. Now (θ)	328°
Sep first	2.0		Sep last	2.0		Sep. Now (ρ)	2"
Mag pri	11.27		Mag sec	11.84		delta mag (ΔM)	0.57		Spectral class
Pri motion ra	+002		Sec motion ra	+002
Pri motion dec	+004		Sec motion dec	+004
Notes	X (Dubious double)

Visually invisible, K-band or other infrared star Nature of this double is uncertain.

Precise pa	328.4		Precise sep	1.98		Constellation	Cygnus		Tycho2	3941-00771-1
Gaia DR2	02517969536

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20153+5428	TDT2123		1991	1	328	2.0	11.27	11.84			201520.10+542740.3

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