19457+3612 ALI 161AB

Coord 2000	19457+3612		Discov num	ALI 161		Comp	AB		Coord arcsec 2000	19 45 41.94 +36 11 40.4
Date first	1933		Date last	2019		Obs	17
Pa first	18		Pa last	17		P.A. Now (θ)	17°
Sep first	8.5		Sep last	8.6		Sep. Now (ρ)	8.6"
Mag pri	10.84		Mag sec	11.24		delta mag (ΔM)	0.4		Spectral class
Pri motion ra	+009		Sec motion ra	+011
Pri motion dec	+000		Sec motion dec	+003
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.316 Nature of this double is uncertain.

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name

SAO

coord_2000

discov#

comp

first

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

Show

19457+3612

ALI 161

AB

1933

2019

17

17

8.6

10.84

11.24

0.40

<===

Show

19457+3612

SEI 677

AC

1896

1983

2

178

16.1

10.84

10.80

0.04

Triple system
3 visible stars in this system

Precise pa

16.8

Precise sep

8.556

Constellation

Cygnus

Gaia DR2

04434180480

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19457+3612	ALI 161	AB	2007	7	17	8.5	10.80	11.00		D	194541.94+361140.4
19457+3612	ALI 161	AB	2010	8	17	8.5	10.80	11.00		N D	194541.94+361140.4
19457+3612	ALI 161	AB	2016	10	17	8.5	10.84	11.24		N	194541.94+361140.4
19457+3612	ALI 161	AB	2018	12	17	8.5	10.84	11.24		N	194541.94+361140.4
19457+3612	ALI 161	AB	2019	17	17	8.6	10.84	11.24		N	194541.94+361140.4

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