20161+3738 SLE 980 (HD 228657)

20^h 16^m 05.54^s +37° 37' 50.0" P.A. 226.00 sep 14.2 mag 9.90,12.50 Sp B9.5V

Coord 2000	20161+3738	Discov num	SLE 980	Comp		Coord arcsec 2000	20 16 05.54 +37 37 50.0
Date first	1985	Date last	2022	Obs	9
Pa first	226	Pa last	225.9	P.A. Now (θ)	225.9°
Sep first	13.9	Sep last	14.18	Sep. Now (ρ)	14.18"
Mag pri	9.90	Mag sec	12.50	delta mag (ΔM)	2.6	Spectral class	B9.5V (blue-white)
Pri motion ra	+001	Sec motion ra	+001
Pri motion dec	-004	Sec motion dec	+004
Notes

rPM=1.94

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 228657		Constellation	Cygnus		Tycho2	3151-01940-1		Gaia DR2	2060855673786879104
HD	228657

WDS 20161+3738 SLE 980 (HD 228657) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sle1966	Mc j	Soulie, G.	1966JO.....49..359S
Sle1966	+Pa	J. Obs. 49, 359, 1966
Sle1983	Pa -	Soulie, G.	1983A&AS...54..281S
Sle1983		A&AS 54, 281, 1983
Sle1984	Pa -	Soulie, G.	1984A&AS...56..351S
Sle1984		A&AS 56, 351, 1984
Sle1985	Pa -	Soulie, G.	1985A&AS...61...17S
Sle1985		A&AS 61, 17, 1985
Sle1986a	Pa -	Soulie, G.	.
Sle1986a		Bull. Inf. Cent. Donnes Stell. #30, 91, 1986
Sle1986b	Pa -	Soulie, G.	.
Sle1986b		Bull. Inf. Cent. Donnes Stell. #30, 103, 1986
Sle2003	C j	Soulie, G.	2003O&T....56...10S
Sle2003		Obs. et Travaux 56, 10, 2003
Sle2006	Pa -	Soulie, G.	2006O&T....62...26S
Sle2006		Obs. et Travaux 62, 26, 2006
Sle2006b	Pa j	Soulie, G.	2006O&T....63...15S
Sle2006b		Obs. et Travaux 63, 15, 2006
Sle2007	C j	Soulie, G.	2007O&T....65...34S
Sle2007		Obs. et Travaux 65, 34, 2007

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20161+3738	SLE 980		1998	2	226	14.5	9.90	12.50		D	201605.45+373745.4
20161+3738	SLE 980		2002	3	226	14.5	9.90	12.50		D	201605.45+373745.4
20161+3738	SLE 980		2010	4	226	14.3	9.90	12.50	B9.5V		201605.45+373745.4
20161+3738	SLE 980		2015	8	227	14.5	9.90	12.50	B9.5V		201605.54+373750.0
20161+3738	SLE 980		2022	9	226	14.2	9.90	12.50	B9.5V		201605.54+373750.0

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

WDS 20161+3738 SLE 980 (HD 228657) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20161+3738 SLE 980 (HD 228657) : MEASURES

No records found.

WDS 20161+3738 (HD 228657) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 20161+3738 (HD 228657) : ALADIN DSS IMAGE @ 20^h 16^m 05.54^s +37° 37' 50.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20161+3738 SLE 980 (HD 228657) : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20161+3738	SLE 980		226	14.2
Show		20165+3739	BU 442	AB	103	18.3	5
Show		20165+3739	SLE 982	AG	10	88.5	5
Show		20165+3739	SLE 982	AH	19	111.6	5
Show		20165+3739	SLE 982	AI	43	63.2	5
Show		20165+3739	SLE 982	AJ	34	96.5	5
Show		20165+3739	SLE 982	AK	34	114.9	5
Show		20165+3739	SLE 982	AL	27	177.3	5
Show		20165+3739	SLE 982	AM	65	88.9	5
Show		20165+3739	SLE 982	AN	76	155.9	5
Show		20165+3739	BU 442	AQ	156	8.7	5
Show		20165+3739	SLV 8	AC	77	31.4	5
Show		20165+3739	BU 442	AP	155	4.7	5
Show		20165+3739	BU 442	AR	332	19.2	5
Show		20165+3739	ABH 135	AD	49	24.4	5
Show		20165+3739	SLE 982	AO	118	58.7	5
Show		20165+3739	BU 442	BC	49	16.9	6
Show		20165+3739	BU 442	BD	2	20.1	6
Show		20165+3739	ABH 135	BE	88	50.2	6
Show		20165+3739	ABH 135	BF	139	64.4	6
Show		20165+3739	ABH 135	BO	125	41.5	6
Show		20165+3739	BU 442	BP	269	16.6	6
Show		20165+3739	BU 442	BR	308	34.4	6
Show		20165+3739	BU 442	BS	124	3.7	6
Show		20165+3739	BU 442	BT	162	6.5	6
Show		20165+3739	BU 442	BU	74	26.0	6
Show		20165+3739	BU 442	BV	86	31.3	6
Show		20165+3739	BU 442	CD	306	15.1	6
Show		20165+3739	BU 442	CU	109	12.7	6
Show		20165+3739	BU 442	CV	116	20.4	6
Show		20165+3739	BU 442	UV	127	8.0	6
Show		20162+3745	TOB 183		256	14.7	8
Show		20169+3743	SLE 985		186	14.1	11
Show		20171+3738	SLE 986	AB	347	6.4	12
Show		20171+3738	SLE 986	AC	1	17.9	12
Show		20168+3731	ARY 25		293	147.1	12
Show		20151+3742	COU2416		128	0.3	13
Show		20160+3751	TDT2130		236	2.0	13
Show		20150+3743	SEI1043		341	21.1	15
Show		20150+3729	KPP2316		227	19.3	16
Show		20170+3725	HDS2891	Aa,Ab	55	0.9	17
Show		20170+3725	A 1423	AB	128	4.4	17
Show		20170+3725	CIA 9	Aa1,2	305	0.0	17
Show		20168+3755	SLE 984		175	8.2	20
Show		20177+3740	SLE 989		223	8.9	20
Show		20160+3758	SEI1048		121	19.6	21
Show		20176+3729	SLE 987		208	11.1	21
Show		20166+3759	ALI 663		58	12.0	22
Show		20158+3759	SLE 978		198	11.8	22
Show		20157+3800	TDS1054		4	0.9	23
Show		20155+3713	ES 2189		136	3.3	26

WDS 20161+3738 : COMPONENTS

	A
B	pa=219.3° sep=12.74"

20161+3738 A

Componente originario normalizzato	AB	Name	HD 228657	Coord arcsec 2000	201605.54+373750.0	Mag	9.9
Spectral class	B9.5V (blue-white)	PmRA	1.00	PmDE	-4.0	Tycho2	3151-01940-1
HD	228657

Tycho2

Tycho2	3151-01940-1	Pflag		RAmdeg	304.02309685	DEmdeg	37.63055837
PmRA	2.5	PmDE	-4.0	E RAmdeg	10	E DEmdeg	8
E pmRA	1.1	E pmDE	1.1	EpRAm	1990.26	EpDEm	1990.87
Num	8	Q RAmdeg	0.8	Q DEmdeg	1.1	Q pmRA	0.9
Q pmDE	1.2	BTmag	9.311	E BTmag	0.018	VTmag	9.249
E VTmag	0.017	Prox	999	TYC	T	HIP
CCDM		RAdeg	304.02308972	DEdeg	37.63056806	EpRA 1990	1.49
EpDE 1990	1.69	E RAdeg	9.7	E DEdeg	7.8	Posflg
Corr	0.0

20161+3738 B

Componente originario normalizzato	AB		Coord arcsec 2000	201604.86+373740.1		Mag	12.5		PmRA	1.00
PmDE	4.0		Calc delta mag	2.6		Calc coord	yes