16426+3113 SEI 540

16^h 42^m 35.18^s +31° 12' 58.3" P.A. 227.00 sep 11.5 mag 9.55,11.10 Sp F0 dist. 172.12 pc (561.46 l.y.)

Coord 2000	16426+3113	Discov num	SEI 540	Comp		Coord arcsec 2000	16 42 35.18 +31 12 58.3
Date first	1895	Date last	2016	Obs	23
Pa first	229	Pa last	226.7	P.A. Now (θ)	226.7°
Sep first	12.2	Sep last	11.51	Sep. Now (ρ)	11.51"
Mag pri	9.55	Mag sec	11.10	delta mag (ΔM)	1.55	Spectral class	F0 (yellow-white)
Pri motion ra	-025	Sec motion ra	-025
Pri motion dec	+034	Sec motion dec	+032
Notes

rPM=0.047 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Hercules		HIP	81811		Tycho2	2582-02757-1		Gaia DR2	1312452571555295744
BD	BD+31 2891		Distance	172.12		Distance ly	561.46

WDS 16426+3113 SEI 540 : NOTES

No records found.

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
16426+3113	SEI 540		2001	11	227	11.6	9.55	11.10	F0	D	164235.18+311258.3
16426+3113	SEI 540		2002	12	227	11.5	9.55	11.10	F0	D	164235.18+311258.3
16426+3113	SEI 540		2013	13	227	11.5	9.55	11.10	F0		164235.18+311258.3
16426+3113	SEI 540		2015	17	227	11.5	9.55	11.10	F0		164235.18+311258.3
16426+3113	SEI 540		2016	23	227	11.5	9.55	11.10	F0		164235.18+311258.3

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

WDS 16426+3113 SEI 540 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 16426+3113 SEI 540 : MEASURES

No records found.

WDS 16426+3113 : VIRTUAL EYEPIECE

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WDS 16426+3113 : ALADIN DSS IMAGE @ 16^h 42^m 35.18^s +31° 12' 58.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 16426+3113 SEI 540 : 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		16426+3113	SEI 540		227	11.5
Show		16416+3053	LSC 66		98	0.0	25
Show		16413+3136	STF2084		110	1.6	29
Show		16447+3148	COU 804		15	0.2	44
Show		16401+3038	LAU 3		263	80.2	48
Show		16386+3129	KPP1528		141	11.5	54
Show		16446+3023	CVR 839		254	17.4	57
Show		16414+3016	HDS2368		157	0.8	59
Show		16476+3129	TDS 836		217	2.6	67
Show		16413+3006	A 349		127	0.7	69
Show		16371+3119	OSO 73		114	25.1	71
Show		16460+3213	SLW1195		33	175.4	74
Show		16456+3008	UC 3226		268	33.0	76
Show		16382+3212	ZHN 9		74	39.4	81
Show		16364+3057	PRB 5		15	999.9	81
Show		16457+3000	STF2098	DE	268	5.8	83
Show		16457+3000	STF2098	AB	145	14.2	84
Show		16457+3000	STF2098	AD	18	67.6	84
Show		16457+3000	STF2098	AC	128	65.6	84
Show		16457+3000	STF2098	BC	124	52.4	84
Show		16385+3006	TDT 16	AB	193	0.2	85
Show		16385+3006	TDT 16	AC	72	1.0	85
Show		16384+3221	SLW1190		68	13.3	87
Show		16360+3038	BRT 256		180	3.4	91
Show		16356+3055	TDS9989		190	0.6	92
Show		16356+3048	TDS9990		178	0.6	94
Show		16496+3044	GRV 939		207	8.0	96
Show		16495+3149	GRV 938		239	29.9	96
Show		16350+3130	RAO 671		316	3.1	99
Show		16350+3055	TDS9978		124	2.1	100
Show		16366+3224	GYL 15		144	4.5	104
Show		16479+2951	UC 3234		63	7.3	108
Show		16358+3219	SEI 539		233	10.8	109
Show		16450+2928	COU 490		294	0.1	110
Show		16345+3034	UC 220		51	31.3	112
Show		16375+3250	SKF2729		341	27.6	117
Show		16441+3308	TDT 57		21	0.5	117
Show		16332+3054	STF2061		29	2.4	122
Show		16472+3300	CVR1674		122	3.9	123
Show		16391+2919	TDT 19		177	0.5	123
Show		16345+3220	NSN 680		134	0.9	124
Show		16518+3151	BU 821		324	1.3	125
Show		16335+3030	BU 818		36	4.0	125
Show		16431+3321	GRV 935		293	10.5	129
Show		16359+2933	COU 621	AB	248	0.7	132
Show		16359+2933	LDS6314	AC	194	26.0	132
Show		16530+3142	BU 1454		64	75.4	136
Show		16401+2901	BU 42		40	7.7	137
Show		16460+3324	KPP1386		255	10.4	138
Show		16427+2854	TDS 830		190	1.0	139
Show		16327+3016	CVR 830		159	11.2	140

WDS 16426+3113 : COMPONENTS

	A
B	pa=222.2° sep=10.66"

16426+3113 A

Componente originario normalizzato	AB	Coord arcsec 2000	164235.18+311258.3	Mag	9.55	Spectral class	F0 (yellow-white)
PmRA	-25.00	PmDE	34.0	HIP	81811	Tycho2	2582-02757-1
BD	BD+31 2891

Tycho2

Tycho2	2582-02757-1	Pflag		RAmdeg	250.64657004	DEmdeg	31.21618887
PmRA	-26.7	PmDE	32.1	E RAmdeg	12	E DEmdeg	11
E pmRA	1.3	E pmDE	1.3	EpRAm	1990.29	EpDEm	1990.65
Num	8	Q RAmdeg	1.2	Q DEmdeg	1.4	Q pmRA	1.2
Q pmDE	1.3	BTmag	9.999	E BTmag	0.022	VTmag	9.551
E VTmag	0.019	Prox	115	TYC	T	HIP	81811
CCDM	A	RAdeg	250.64664417	DEdeg	31.21611472	EpRA 1990	1.48
EpDE 1990	1.66	E RAdeg	12.4	E DEdeg	11.3	Posflg
Corr	-0.1

Hipparcos

Catalog	H	HIP	81811	Proxy		RAhms	16 42 35.20
DEdms	+31 12 58.0	Vmag	9.51	VarFlag		R Vmag	H
RAdeg	250.647	DEdeg	31.2161	AstroRef	A	Plx	6
CCDM	16426+3113	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	227	Rho	11.517	HD		BD	BD+31 2891
CD		CP		Dm number	+31 2891	VIred	0.5
SpType	F0	R SpType		Coord arcsec 2000	164235.20+311258.0

Hipparcos 2

HIP	81811	Sn	15	So	3	Nc	2
RArad	4.3746093136	DErad	0.5448239275	Plx	5.81	PmRA	-23.52
PmDE	35.9	E RArad	0.97	E DErad	1.14	E Plx	1.47
E pmRA	1.15	E pmDE	1.41	Hpmag	9.5982	E Hpmag	0.0102
SHp	0.027	VA	0	BV	0.412	E BV	0.034
VI	0.48

CCDM

Ccdm	16426+3113	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.82	DDEs	-1.8
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.9	Sp		PmNote	*
PmRA	-27	PmDE	32	Dm number	+31 2891	Cat1	BD
Name2	+31 1439	Cat2	AGK2/3	HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	16388N3124A
HIC	81811

16426+3113 B

Componente originario normalizzato	AB		Coord arcsec 2000	164234.62+311250.4		Mag	11.1		PmRA	-25.00
PmDE	32.0		Calc delta mag	1.55		Calc coord	yes

CCDM

Ccdm	16426+3113	RComp		Comp	B	Note1
Note2		Discov num	SEI 540	DRAs		DDEs
R dRAs		Year	1895	Theta	228	Rho	11.8
Obs	3	Vmag	11.6	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	16388N3124B
HIC