17558+3117 SEI 552

17^h 55^m 49.46^s +31° 17' 52.8" P.A. 235.00 sep 5.6 mag 10.57,11.30

Coord 2000	17558+3117	Discov num	SEI 552	Comp		Coord arcsec 2000	17 55 49.46 +31 17 52.8
Date first	1899	Date last	2015	Obs	17
Pa first	233	Pa last	234.8	P.A. Now (θ)	234.8°
Sep first	5.5	Sep last	5.568	Sep. Now (ρ)	5.568"
Mag pri	10.57	Mag sec	11.30	delta mag (ΔM)	0.73	Spectral class
Pri motion ra	-003	Sec motion ra	-007
Pri motion dec	+004	Sec motion dec	-006
Notes	N (See Notes)

rPM=1.168

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Hercules

Tycho2

2608-00579-1

Gaia DR2

4603038157614857472

WDS 17558+3117 SEI 552 : NOTES

discov_num	notes	refcode
SEI 552	ES 342.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17558+3117	SEI 552		1998	9	234	5.6	10.57	11.30		D	175549.46+311752.8
17558+3117	SEI 552		2008	10	235	5.6	10.57	11.30		D	175549.46+311752.8
17558+3117	SEI 552		2010	12	236	4.6	10.57	11.30		N	175549.46+311752.8
17558+3117	SEI 552		2015	13	234	5.6	10.57	11.30		N	175549.46+311752.8

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WDS 17558+3117 SEI 552 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17558+3117 SEI 552 : MEASURES

No records found.

WDS 17558+3117 : VIRTUAL EYEPIECE

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WDS 17558+3117 : ALADIN DSS IMAGE @ 17^h 55^m 49.46^s +31° 17' 52.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17558+3117 SEI 552 : 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		17558+3117	SEI 552		235	5.6
Show		17566+3110	ES 343		281	8.5	12
Show		17551+3134	AG 215	AB	49	42.8	19
Show		17551+3134	ITF 16	AC	107	11.3	19
Show		17551+3135	ITF 21		313	5.4	19
Show		17565+3139	TDT 585		358	0.6	23
Show		17544+3135	SEI 550		20	5.7	27
Show		17566+3045	COU 999		311	1.4	35
Show		17564+3028	KPP4069	AC	76	2.5	51
Show		17516+3129	KPP4065		210	3.6	56
Show		17564+3018	KPP2118		349	17.2	61
Show		18015+3113	TDT 639		142	0.6	73
Show		17501+3130	SEI 548		89	17.5	75
Show		18016+3132	BRT 258		269	3.7	75
Show		17585+3011	HDS2534		355	0.5	75
Show		17499+3134	KPP 402		24	3.5	78
Show		18019+3123	SEI 554		48	23.5	78
Show		17569+3236	HU 1184		205	0.9	80
Show		17591+3228	HU 1185		146	0.4	82
Show		17580+3237	KPP4074		209	1.7	84
Show		18020+3047	COU 811		153	2.2	85
Show		17590+3003	STF2259		277	19.6	86
Show		18020+3153	SEI 555		109	19.4	87
Show		17535+3240	SEI 549		130	12.1	87
Show		18006+3014	J 1127		341	2.9	90
Show		17532+3243	COU 998	AB	122	1.7	90
Show		17532+3243	GII 43	Aa,Ab	17	0.2	90
Show		18028+3115	TDT 651		228	0.6	91
Show		17541+2949	AC 9		242	1.0	92
Show		17510+3010	COU 636		269	1.5	93
Show		17559+2943	AZC 102		35	21.3	95
Show		17569+3252	SEI 553		28	9.7	96
Show		17529+2941	AC 8		304	0.1	105
Show		17567+2929	D 17		130	23.9	109
Show		17512+2946	BRT 31		147	7.6	110
Show		18039+3200	COU1004		109	1.3	112
Show		18041+3159	KPP 641		117	5.8	115
Show		18039+3023	WIS 322		284	999.9	118
Show		17594+2929	COU1003	Aa,Ab	359	0.1	118
Show		17594+2929	STF2247	AB	188	11.6	118
Show		17594+2929	WAL 88	AC	230	56.1	118
Show		18041+3025	KPP4077		249	16.8	119
Show		18006+2934	LDS6413		105	88.1	121
Show		18054+3054	SLE 130		103	6.7	126
Show		17559+3326	HO 72	AB	359	33.4	128
Show		17559+3326	HO 72	AC	37	10.6	128
Show		17559+3326	HO 72	AD	45	153.4	128
Show		17559+3326	HO 72	BC	162	23.0	128
Show		17559+3326	HO 72	BD	56	134.4	128
Show		18038+3240	UC 3483		310	20.2	131
Show		17520+2917	AZC 101		270	22.6	132

WDS 17558+3117 : COMPONENTS

	A
B	pa=230.5° sep=5.04"

17558+3117 A

Componente originario normalizzato	AB		Coord arcsec 2000	175549.46+311752.8		Mag	10.57		PmRA	-3.00
PmDE	4.0		Tycho2	2608-00579-1

Tycho2

Tycho2	2608-00579-1	Pflag		RAmdeg	268.95608388	DEmdeg	31.29800017
PmRA	-2.9	PmDE	1.5	E RAmdeg	25	E DEmdeg	24
E pmRA	1.8	E pmDE	1.8	EpRAm	1989.27	EpDEm	1989.60
Num	4	Q RAmdeg	1.1	Q DEmdeg	0.8	Q pmRA	1.1
Q pmDE	0.8	BTmag	11.092	E BTmag	0.041	VTmag	10.573
E VTmag	0.037	Prox	920	TYC	T	HIP
CCDM		RAdeg	268.95609167	DEdeg	31.29799639	EpRA 1990	1.53
EpDE 1990	1.63	E RAdeg	24.9	E DEdeg	24.3	Posflg
Corr	-0.1

17558+3117 B

Componente originario normalizzato	AB		Coord arcsec 2000	175549.16+311749.6		Mag	11.3		PmRA	-7.00
PmDE	-6.0		Calc delta mag	0.73		Calc coord	yes