17321+3106 LDS 4750

17^h 32^m 02.81^s +31° 06' 07.3" P.A. 19.00 sep 8.9 mag 18.70,19.01

Coord 2000	17321+3106	Discov num	LDS4750	Comp		Coord arcsec 2000	17 32 02.81 +31 06 07.3
Date first	1960	Date last	2016	Obs	10
Pa first	17	Pa last	18.5	P.A. Now (θ)	18.5°
Sep first	9.5	Sep last	8.946	Sep. Now (ρ)	8.946"
Mag pri	18.70	Mag sec	19.01	delta mag (ΔM)	0.31	Spectral class
Pri motion ra	-121	Sec motion ra	-116
Pri motion dec	-213	Sec motion dec	-215
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.022 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Hercules

Gaia DR2

4599292877412475264

WDS 17321+3106 LDS 4750 : NOTES

discov_num	notes	refcode
LDS4750	NLTT 45001/45000	Chm2004

REFERENCES

refcode	metd	author	reference
Chm2004	E -	Chaname, J. & Gould, A.	2004ApJ...601..289C
Chm2004		ApJ 601, 289, 2004
Chm2004		(Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004		versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004		identical to discovery observations - predominantly close pairs - were assumed
Chm2004		not new observations, so not included in WDS. Similar concerns when primary and
Chm2004		secondary magnitudes or proper motions were the same.)

DISCOVERER

idgroup	discov	author
1	LDS	Luyten p.m. catalog (from additional DD list)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17321+3106	LDS4750		1998	2	16	9.0	18.70	19.01		D	173202.81+310607.3
17321+3106	LDS4750		2015	3	19	8.9	18.70	19.01		NV	173202.81+310607.3
17321+3106	LDS4750		2016	10	19	8.9	18.70	19.01		NV	173202.81+310607.3

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

WDS 17321+3106 LDS 4750 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17321+3106 LDS 4750 : MEASURES

No records found.

WDS 17321+3106 : VIRTUAL EYEPIECE

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WDS 17321+3106 : ALADIN DSS IMAGE @ 17^h 32^m 02.81^s +31° 06' 07.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17321+3106 LDS 4750 : 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		17321+3106	LDS4750		19	8.9
Show		17305+3132	KPP2117		149	17.2	33
Show		17338+3131	TDT 415		220	0.8	34
Show		17348+3100	LDS4756		135	135.0	37
Show		17300+3035	GRV 957		30	11.5	42
Show		17299+3035	SLE 29		74	37.6	42
Show		17300+3138	LDS4746		39	8.5	42
Show		17317+3019	STF2181	AB	328	33.0	48
Show		17317+3019	STF2181	AC	218	37.7	48
Show		17317+3019	SLE 27	AD	25	164.5	48
Show		17301+3025	TDT 383		242	1.1	49
Show		17308+3201	ZHN 31		259	7.1	58
Show		17313+3008	RAO 375		181	0.7	59
Show		17274+3128	HJL1093		326	187.8	64
Show		17267+3105	LDS 995		200	68.1	69
Show		17372+3124	TDT 435	Aa,Ab	15	0.4	69
Show		17372+3124	SEI 544	AB	276	9.7	69
Show		17277+3024	HO 416	AB	97	4.5	70
Show		17277+3024	SLE 28	AC	275	79.1	70
Show		17266+3130	UC 3341		122	5.5	74
Show		17341+2959	ES 468		11	2.3	75
Show		17346+2958	MAB 1	AB	27	0.6	76
Show		17359+3205	COU 807		143	0.7	78
Show		17380+3124	TDT 444		212	1.3	79
Show		17302+3222	COU 806		102	5.6	79
Show		17383+3059	TDT 445		176	0.6	81
Show		17377+3017	HDS2490		164	0.2	89
Show		17284+2950	ARY 13		89	102.9	90
Show		17249+3045	B 2544		200	1.2	95
Show		17248+3044	BU 1250		118	1.9	96
Show		17269+2957	KPP1455		192	10.9	97
Show		17294+3243	STF2175		9	13.3	102
Show		17294+3245	STF2174		331	5.4	106
Show		17400+3144	SEI 545		325	11.4	108
Show		17272+3235	TDT 362		156	0.3	108
Show		17395+3157	KPP2533		270	22.8	109
Show		17293+2924	A 351	AB	58	0.5	109
Show		17293+2924	KUI 82	AB,C	314	49.9	109
Show		17407+3117	HDS2501	Aa,Ab	78	0.8	112
Show		17407+3117	STTA157	AB	106	118.3	112
Show		17365+3243	SEI 543	AB	178	7.3	113
Show		17365+3243	WAL 84	AC	94	34.5	113
Show		17296+2916	LDS4744		162	15.7	115
Show		17246+3215	H N 5	AB	356	24.6	118
Show		17246+3215	H N 5	AC	181	37.2	118
Show		17246+3215	H N 5	AD	15	152.3	118
Show		17319+2902	TDT 397		354	0.5	124
Show		17262+2927	STF2165	AB	62	10.4	125
Show		17262+2927	STF2165	AC	251	94.8	125
Show		17226+3037	TDT 325		126	0.2	126
Show		17262+2927	STF2165	CD	180	52.3	126

WDS 17321+3106 : COMPONENTS

	A
B	pa=16.0° sep=8.83"

17321+3106 A

Componente originario normalizzato	AB		Coord arcsec 2000	173202.81+310607.3		Mag	18.7		PmRA	-121.00
PmDE	-213.0

17321+3106 B

Componente originario normalizzato	AB		Coord arcsec 2000	173203.00+310615.8		Mag	19.01		PmRA	-116.00
PmDE	-215.0		Calc delta mag	0.31		Calc coord	yes