20310+1200 DAM 673

Coord 2000	20310+1200		Discov num	DAM 673		Comp			Coord arcsec 2000	20 31 02.97 +11 59 38.6
Date first	2000		Date last	2015		Obs	6
Pa first	251		Pa last	251		P.A. Now (θ)	251°
Sep first	13.3		Sep last	13.3		Sep. Now (ρ)	13.3"
Mag pri	19.10		Mag sec	20.70		delta mag (ΔM)	1.6		Spectral class
Pri motion ra	-151		Sec motion ra	-155
Pri motion dec	-086		Sec motion dec	-091
Notes	K (K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star rPM=0.036 (< 0.3, Physical double) This double is physical.

Precise pa	250.5		Precise sep	13.291		Constellation	Hydra		Tycho2	1095-01466-1
Gaia DR2	1755605407373489920

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20310+1200	DAM 673		2000	2	251	13.3	19.10	20.70		K	203102.97+115938.6
20310+1200	DAM 673		2010	3	250	13.2	19.10	20.70		K	203102.97+115938.6
20310+1200	DAM 673		2015	3	251	13.3	19.10	20.70		K	203102.97+115938.6

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