20136+4644 ES   26DE

Coord 2000	20136+4644		Discov num	ES   26		Comp	DE		Coord arcsec 2000	20 13 18.04 +46 48 56.4
Date first	1900		Date last	2003		Obs	4
Pa first	252		Pa last	252		P.A. Now (θ)	252°
Sep first	32.9		Sep last	36.3		Sep. Now (ρ)	36.3"
Mag pri	4.83		Mag sec	13.20		delta mag (ΔM)	8.37		Spectral class	A5IIIn (white)
Pri motion ra	+014		Sec motion ra
Pri motion dec	+003		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		49337	20 13 38 +46 44 29	WRH 33 Aa,Ab	1985	6	135	0.0	3.93			Y
Show	31 Cyg	49337	20 13 38 +46 44 29	HJ 1495 AB	2015	12	328	36.5	3.93	13.40	9.47
Show		49337	20 13 38 +46 44 29	STFA 50 AC	2016	46	173	108.6	3.93	6.97	3.04
Show		49337	20 13 38 +46 44 29	STFA 50 AD	2016	38	322	336.7	3.93	4.83	0.90
Show		49337	20 13 38 +46 44 29	BU 1483 AF	2015	4	168	43.5	3.93	13.90	9.97
Show		49338	20 13 39 +46 42 43	BU 1483 CG	2003	3	95	37.9	6.97	14.20	7.23
Show		49338	20 13 39 +46 42 43	BU 1483 CH	2014	4	62	60.6	6.97	12.60	5.63
Show		49338	20 13 39 +46 42 43	BU 1483 CI	2015	7	136	60.2	6.97	12.26	5.29
Show		49332	20 13 18 +46 48 56	GUI 30 DC	2003	27	150	431.8	4.83	6.97	2.14
Show		49332	20 13 18 +46 48 56	ES 26 DE	2003	4	252	36.3	4.83	13.20	8.37		<===
Show		49337	20 13 39 +46 43 46	SMR 68 FJ	2015	3	217	4.2	13.90	15.10	1.20
Show		49338	20 13 44 +46 43 11	SMR 68 HK	2015	8	262	8.9	11.74	10.87	0.87

12-fold system
11 visible stars in this system

Precise pa	251.9		Precise sep	36.314		Constellation	Cygnus		SAO	49332
HIP	99639		Tycho2	3559-02796-1		Gaia DR2	2082604907127210240		HD	192514
HR	7730		GC	28091		BD	BD+46 2881		Flamsteed	30 Cygni
Flamsteed name	30 Cyg		Distance	187.27		Distance ly	610.87

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20136+4644	ES 26	DE	1998	3	251	36.6	4.83	13.20	A5IIIn	D	201318.04+464856.4
20136+4644	ES 26	DE	2003	4	252	36.4	4.83	13.20	A5IIIn	N D	201318.04+464856.4

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