20138+4055 TDT 2106 (HD 228454)

20^h 13^m 50.50^s +40° 54' 43.7" P.A. 358.00 sep 0.5 mag 11.45,11.90 Sp A0

Coord 2000	20138+4055	Discov num	TDT2106	Comp		Coord arcsec 2000	20 13 50.50 +40 54 43.7
Date first	1991	Date last	1991	Obs	1
Pa first	358	Pa last	358.4	P.A. Now (θ)	358.4°
Sep first	0.5	Sep last	0.52	Sep. Now (ρ)	0.52"
Mag pri	11.45	Mag sec	11.90	delta mag (ΔM)	0.45	Spectral class	A0 (white)
Pri motion ra	+010	Sec motion ra	+010
Pri motion dec	-001	Sec motion dec	-001
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 228454		Constellation	Cygnus		Tycho2	3155-01593-1		Gaia DR2	2062585617885197824
HD	228454

WDS 20138+4055 TDT 2106 (HD 228454) : NOTES

No records found.

DISCOVERER

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20138+4055	TDT2106		1991	1	358	0.5	11.45	11.90			201350.50+405443.7

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WDS 20138+4055 TDT 2106 (HD 228454) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20138+4055 TDT 2106 (HD 228454) : MEASURES

No records found.

WDS 20138+4055 (HD 228454) : VIRTUAL EYEPIECE

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WDS 20138+4055 (HD 228454) : ALADIN DSS IMAGE @ 20^h 13^m 50.50^s +40° 54' 43.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20138+4055 TDT 2106 (HD 228454) : 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		20138+4055	TDT2106		358	0.5	1
Show		20137+4050	DOO 13		258	3.0	5
Show		20144+4048	TDT2113		181	0.5	10
Show		20136+4040	TDT2104		161	0.9	16
Show		20133+4038	GRV 324		252	7.7	18
Show		20144+4112	TDT2112		64	0.6	19
Show		20143+4115	COU2639		244	0.4	22
Show		20148+4035	TDT2118		312	0.4	23
Show		20151+4118	A 387	CD	19	9.0	28
Show		20151+4118	A 387	AB	151	5.1	28
Show		20151+4118	A 387	AC	222	21.6	28
Show		20155+4030	A 390		328	0.8	31
Show		20111+4048	TDT2057		14	1.3	32
Show		20110+4041	KPP1897		323	14.9	36
Show		20158+4024	TDS1055		163	0.9	39
Show		20169+4022	BU 661	AB	69	12.3	49
Show		20169+4022	BU 661	AC	217	111.7	49
Show		20171+4127	ARN 97		220	12.8	49
Show		20097+4046	BRT2254		72	3.6	49
Show		20181+4044	STF2666	CD	142	24.1	50
Show		20181+4044	CHR 96	Aa,Ab	151	0.1	50
Show		20181+4044	STF2666	AB	245	2.8	50
Show		20181+4044	STF2666	AC	207	34.0	50
Show		20181+4044	TAR 5	AD	181	49.6	50
Show		20177+4030	HDS2897		273	0.3	51
Show		20170+4017	CNT 5		331	5.9	52
Show		20111+4131	HJ 1491		297	4.8	55
Show		20176+4020	BRT2259		29	1.4	55
Show		20163+4007	MLB1013		160	4.0	55
Show		20181+4122	ES 1674		125	4.9	56
Show		20090+4045	HJ 1487	AB	298	14.3	56
Show		20090+4045	OPI9003	AC	195	60.1	56
Show		20184+4033	ARN 49		313	30.2	57
Show		20097+4130	HDS2871		228	0.2	58
Show		20187+4113	COU2640		265	0.5	59
Show		20185+4123	TDT2154		311	0.5	60
Show		20107+4001	TDS1048		339	1.1	65
Show		20096+4009	COU2414		159	0.3	67
Show		20186+4136	ES 1675		324	2.2	68
Show		20197+4108	STTA205		321	45.5	69
Show		20097+4149	TDT2037		21	2.8	71
Show		20168+4158	ES 1568	BC	187	2.3	72
Show		20168+4158	ES 1568	AB	292	12.8	72
Show		20144+4206	STT 403	AB	170	0.9	72
Show		20144+4206	STF2657	AC	32	11.6	72
Show		20178+3956	HJ 2951	AB	125	10.8	75
Show		20178+3956	FOX9014	AC	61	24.4	75
Show		20124+3940	TDT2083		350	1.1	77
Show		20099+4200	CVR 219		210	113.2	79
Show		20133+4214	COU2638		48	1.8	79
Show		20099+3951	ALI1135		200	13.1	79

WDS 20138+4055 : COMPONENTS

	A
B	pa=358.8° sep=0.52"

20138+4055 A

Name	HD 228454		Coord arcsec 2000	201350.50+405443.7		Mag	11.45		Spectral class	A0 (white)
PmRA	10.00		PmDE	-1.0		Tycho2	3155-01593-1		HD	228454

Tycho2

Tycho2	3155-01593-1	Pflag		RAmdeg	303.46040781	DEmdeg	40.91219348
PmRA	10.4	PmDE	-0.9	E RAmdeg	24	E DEmdeg	25
E pmRA	1.2	E pmDE	1.2	EpRAm	1985.46	EpDEm	1985.82
Num	5	Q RAmdeg	1.3	Q DEmdeg	0.5	Q pmRA	1.3
Q pmDE	0.5	BTmag	11.061	E BTmag	0.042	VTmag	10.941
E VTmag	0.056	Prox	999	TYC	T	HIP
CCDM		RAdeg	303.46037556	DEdeg	40.91219556	EpRA 1990	1.64
EpDE 1990	1.67	E RAdeg	30.1	E DEdeg	27.9	Posflg
Corr	0.0

20138+4055 B

Coord arcsec 2000	201350.50+405444.2		Mag	11.9		PmRA	10.00		PmDE	-1.0
Calc delta mag	0.45		Calc coord	yes