20177-1550 HO  123

Coord 2000	20177-1550		Discov num	HO  123		Comp			Coord arcsec 2000	20 17 42.15 -15 49 56.8
Date first	1885		Date last	2015		Obs	24
Pa first	215		Pa last	229		P.A. Now (θ)	229°
Sep first	2.7		Sep last	3.0		Sep. Now (ρ)	3"
Mag pri	10.63		Mag sec	10.63		delta mag (ΔM)	0		Spectral class
Pri motion ra	+017		Sec motion ra	+007
Pri motion dec	-053		Sec motion dec	-055
Notes	V (Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.183 (< 0.3, Physical double) This double is physical.

Precise pa	228.6		Precise sep	2.971		Constellation	Capricornus		SAO	163418
Tycho2	6328-01187-1		Gaia DR2	47663043712

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20177-1550	HO 123		1998	21	237	2.3	10.63	10.63		D	201742.15-154956.8
20177-1550	HO 123		1999	22	229	3.0	10.63	10.63		D	201742.15-154956.8
20177-1550	HO 123		2015	23	229	3.0	10.63	10.63		W	201742.15-154956.8

If you need more information about this double, apply for a data request form to the WDS.