20173+2651 TDT2143

Coord 2000	20173+2651		Discov num	TDT2143		Comp			Coord arcsec 2000	20 17 16.18 +26 51 15.3
Date first	1991		Date last	2009		Obs	2
Pa first	121		Pa last	111		P.A. Now (θ)	111°
Sep first	0.4		Sep last	0.5		Sep. Now (ρ)	0.5"
Mag pri	10.91		Mag sec	11.16		delta mag (ΔM)	0.25		Spectral class
Pri motion ra	-014		Sec motion ra	-014
Pri motion dec	-025		Sec motion dec	-025
Notes

Nature of this double is uncertain.

Precise pa	111.3		Precise sep	0.45		Constellation	Vulpecula		Tycho2	2163-00267-1
Gaia DR2	22421570560		HD	339900

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20173+2651	TDT2143		1991	1	121	0.4	10.91	11.16			201716.18+265115.3
20173+2651	TDT2143		2009	2	111	0.5	10.91	11.16			201716.18+265115.3

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