20169+3130 HO  588AB

Coord 2000	20169+3130		Discov num	HO  588		Comp	AB		Coord arcsec 2000	20 16 54.99 +31 30 18.7
Date first	1893		Date last	2017		Obs	28
Pa first	298		Pa last	298		P.A. Now (θ)	298°
Sep first	50.7		Sep last	51.1		Sep. Now (ρ)	51.1"
Mag pri	6.91		Mag sec	8.89		delta mag (ΔM)	1.98		Spectral class	A0III (white)
Pri motion ra	-008		Sec motion ra	-009
Pri motion dec	-012		Sec motion dec	-014
Notes

rPM=0.134 (< 0.3, Physical double) This double is physical.

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

Show

20169+3130

HO 588

AB

1893

2017

28

298

51.1

6.91

8.89

1.98

<===

Show

20169+3130

HO 588

BC

1896

2015

13

30

8.7

8.89

12.60

3.71

Triple system
3 visible stars in this system

Precise pa	297.5		Precise sep	51.095		Constellation	Cygnus		SAO	69743
HIP	99967		Tycho2	2672-02200-1		Gaia DR2	48687794048		HD	193010
BD	BD+31 4020		Distance	189.39		Distance ly	617.79

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20169+3130	HO 588	AB	2003	21	297	50.3	6.91	8.89	A0III	D	201654.99+313018.7
20169+3130	HO 588	AB	2012	23	297	50.8	6.91	8.89	A0III	D	201654.99+313018.7
20169+3130	HO 588	AB	2015	24	297	51.1	6.91	8.89	A0III		201654.99+313018.7
20169+3130	HO 588	AB	2016	25	297	50.8	6.91	8.89	A0III		201654.99+313018.7
20169+3130	HO 588	AB	2017	26	298	51.1	6.91	8.89	A0III		201654.99+313018.7

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