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20145+3648
BUP 207 AE

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20145+3648 BUP 207 AE

20^h 14^m 31.98^s +36° 48' 22.1" P.A. 325.00 sep 35.2 mag 4.96,12.20 Sp A2V dist. 42.7 pc (139.29 l.y.)

Coord 2000	20145+3648		Discov num	BUP 207		Comp	AE		Coord arcsec 2000	20 14 31.98 +36 48 22.1
Date first	1896		Date last	2012		Obs	14
Pa first	343		Pa last	324.8		P.A. Now (θ)	324.8°
Sep first	39.8		Sep last	35.2		Sep. Now (ρ)	35.2"
Mag pri	4.96		Mag sec	12.20		delta mag (ΔM)	7.24		Spectral class	A2V (white)
Pri motion ra	+070		Sec motion ra	-002
Pri motion dec	+069		Sec motion dec	-007
Notes	N (See Notes)

rPM=1.065

This double is not physical.

20145+3648 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	29 Cyg	69678	20 14 32 +36 48 22	ENG 72 AB	2016	29	155	215.3	4.96	6.71	1.75
Show		69678	20 14 32 +36 48 22	ENG 72 AC	2012	23	22	212.3	4.96	9.99	5.03
Show		69678	20 14 32 +36 48 22	BUP 207 AE	2012	14	325	35.2	4.96	12.20	7.24		<===
Show		69678	20 14 32 +36 48 22	SMR 39 AF	2013	7	33	32.7	4.96	12.50	7.54
Show		69678	20 14 32 +36 48 22	FYM 105 AH	2013	1	133	10.0	4.96	12.00	7.04
Show		69681	20 14 40 +36 45 07	ENG 72 BD	2015	19	120	217.5	6.71	10.72	4.01

Septuple system
7 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	V1644 Cyg		Constellation	Cygnus		SAO	69678		HIP	99770
Tycho2	2683-03962-1		Gaia DR2	2060523518197844608		HD	192640		HR	7736
GC	28124		BD	BD+36 3955		Flamsteed	29 Cygni		Flamsteed name	29 Cyg
Distance	42.7		Distance ly	139.29