18431+0742 LDS 1013 AB (HD 173055)

18^h 43^m 05.61^s +07° 42' 03.7" P.A. 294.00 sep 112.8 mag 8.74,10.00 Sp K0 dist. 40.57 pc (132.34 l.y.)

Coord 2000	18431+0742	Discov num	LDS1013	Comp	AB	Coord arcsec 2000	18 43 05.61 +07 42 03.7
Date first	1919	Date last	2015	Obs	13
Pa first	295	Pa last	294.4	P.A. Now (θ)	294.4°
Sep first	112.4	Sep last	112.758	Sep. Now (ρ)	112.758"
Mag pri	8.74	Mag sec	10.00	delta mag (ΔM)	1.26	Spectral class	K0 (yellow-orange)
Pri motion ra	+131	Sec motion ra	+133
Pri motion dec	-253	Sec motion dec	-250
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.013 (< 0.3, Physical double)

This double is physical.

18431+0742 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 173055	123839	18 43 06 +07 42 04	LDS 1013 AB	2015	13	294	112.8	8.74	10.00	1.26		<===
Show			18 42 59 +07 42 50	LDS 1013 BC	2021	2	226	0.4	10.40	11.30	0.90

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 173055	Constellation	Ophiuchus	SAO	123839	HIP	91801
Tycho2	1025-02404-1	HD	173055	BD	BD+07 3815	Distance	40.57
Distance ly	132.34

WDS 18431+0742 LDS 1013 AB (HD 173055) : NOTES

discov_num	notes	refcode
LDS1013	B is BD+07@3814.

REFERENCES

refcode	metd	author	reference
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
18431+0742	LDS1013	AB	2015	13	294	112.8	8.74	10.00	K0	NV	184305.61+074203.7

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

WDS 18431+0742 LDS 1013 AB (HD 173055) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18431+0742 LDS 1013 AB (HD 173055) : MEASURES

No records found.

WDS 18431+0742 (HD 173055) : VIRTUAL EYEPIECE

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

WDS 18431+0742 (HD 173055) : ALADIN DSS IMAGE @ 18^h 43^m 05.61^s +07° 42' 03.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18431+0742 LDS 1013 AB (HD 173055) : 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		18431+0742	LDS1013	AB	294	112.8
Show		18431+0742	LDS1013	BC	226	0.4	2
Show		18427+0742	HEI 870	AB	347	1.7	6
Show		18427+0742	HEI 870	Aa,Ab	246	0.9	6
Show		18422+0739	HEI 869		225	2.0	14
Show		18417+0740	GII 62		246	0.9	21
Show		18447+0747	J 2921		180	6.0	26
Show		18456+0754	TDT1038		238	0.4	39
Show		18418+0818	J 1214		160	4.0	41
Show		18412+0811	TDT 995		54	0.4	41
Show		18458+0755	TDT1040		186	2.3	43
Show		18456+0708	KPP1100		154	8.7	51
Show		18396+0736	J 2141		201	5.9	52
Show		18399+0722	STF2355	AB	127	21.7	53
Show		18399+0722	STF2355	AC	38	109.6	53
Show		18399+0722	FOX 233	AD	225	46.6	53
Show		18398+0709	BRT2178	CD	169	5.2	59
Show		18398+0709	SLE1031	AB	299	12.2	59
Show		18463+0821	TDT1045		302	0.7	62
Show		18397+0704	J 102	AB	50	4.2	63
Show		18397+0704	J 102	AC	294	30.8	63
Show		18391+0803	TDT 973		299	0.7	64
Show		18412+0645	J 1273		353	1.8	64
Show		18395+0703	J 1271		97	5.9	65
Show		18411+0841	J 526		237	2.6	65
Show		18443+0640	CRT 6	AB	262	4.6	65
Show		18443+0640	CRT 6	AC	323	5.4	65
Show		18443+0640	CRT 6	AD	135	5.9	65
Show		18443+0640	CRT 6	AE	340	6.0	65
Show		18443+0640	CRT 6	AF	36	6.1	65
Show		18443+0640	CRT 6	AG	358	6.2	65
Show		18443+0640	CRT 6	AH	76	6.7	65
Show		18443+0640	CRT 6	AI	256	7.1	65
Show		18443+0640	CRT 6	AJ	354	8.3	65
Show		18443+0640	CRT 6	AK	337	9.1	65
Show		18443+0640	CRT 6	AL	257	10.0	65
Show		18443+0640	CRT 6	AM	291	9.9	65
Show		18443+0640	CRT 6	AN	41	11.4	65
Show		18443+0640	CRT 6	AO	283	11.7	65
Show		18443+0640	CRT 6	AP	149	11.8	65
Show		18443+0640	CRT 6	AQ	6	12.0	65
Show		18443+0640	CRT 6	AR	103	12.3	65
Show		18443+0640	CRT 6	AS	315	12.3	65
Show		18443+0640	CRT 6	AT	126	12.9	65
Show		18443+0640	CRT 6	AU	331	13.2	65
Show		18443+0640	CRT 6	AV	53	13.6	65
Show		18443+0640	CRT 6	A,Wa	177	13.7	65
Show		18443+0640	CRT 6	A,Wb	330	13.9	65
Show		18443+0640	CRT 6	A,Wc	69	14.4	65
Show		18443+0640	CRT 6	A,Wd	325	14.9	65
Show		18443+0640	CRT 6	A,We	142	15.4	65

WDS 18431+0742 : COMPONENTS

	A	B
B	pa=294.6° sep=111.91"
C	pa=294.4° sep=112.13"	pa=233.7° sep=0.43"

18431+0742 A

Name	HD 173055	Coord arcsec 2000	184305.61+074203.7	Mag	8.74	Spectral class	K0 (yellow-orange)
PmRA	131.00	PmDE	-253.0	SAO	123839	HIP	91801
Tycho2	1025-02404-1	HD	173055	BD	BD+07 3815

Tycho2

Tycho2	1025-02404-1	Pflag		RAmdeg	280.77338077	DEmdeg	7.70102261
PmRA	132.1	PmDE	-251.1	E RAmdeg	9	E DEmdeg	10
E pmRA	2.0	E pmDE	2.0	EpRAm	1991.37	EpDEm	1991.32
Num	7	Q RAmdeg	0.8	Q DEmdeg	1.4	Q pmRA	0.8
Q pmDE	1.5	BTmag	9.618	E BTmag	0.023	VTmag	8.736
E VTmag	0.015	Prox	999	TYC	T	HIP	91801
CCDM		RAdeg	280.77307694	DEdeg	7.70159611	EpRA 1990	1.80
EpDE 1990	1.78	E RAdeg	9.1	E DEdeg	9.8	Posflg
Corr	-0.1

SAO

SAO	123839	DelFlag		RA1950		PmRA1950	0.0086
DE1950		PmDE1950	-0.25	Vmag	8.5	SpType	K0
Double code		Source	32	CatNum	8762	DM	BD+07 3815
DMcomp		BDsup		HD	173055	M HD	0
GC		RA1950rad	4.88984686	DE1950rad	0.13358676	PmRA2000	0.0088
PmDE2000	-0.25

Hipparcos

Catalog	H	HIP	91801	Proxy		RAhms	18 43 05.53
DEdms	+07 42 05.9	Vmag	8.64	VarFlag		R Vmag	G
RAdeg	280.773	DEdeg	7.70164	AstroRef		Plx	21.88
CCDM	18430+0742	N CCDM	I	Nsys	1	Ncomp	1
MultFlag	X	Source		Qual		M HIP
Theta		Rho		HD	173055	BD	BD+07 3815
CD		CP		Dm number	+07 3815	VIred	0.8
SpType	K0	R SpType		Coord arcsec 2000	184305.53+074205.9

Hipparcos 2

HIP	91801	Sn	1	So	2	Nc	1
RArad	4.9004142218	DErad	0.1344189346	Plx	24.65	PmRA	130.41
PmDE	-252.49	E RArad	1.18	E DErad	0.93	E Plx	1.47
E pmRA	1.37	E pmDE	1.26	Hpmag	8.7913	E Hpmag	0.0018
SHp	0.012	VA	0	BV	0.76	E BV	0.015
VI	0.8

18431+0742 B

Coord arcsec 2000	184258.76+074250.3		Mag	10		PmRA	133.00		PmDE	-250.0
Calc delta mag	1.26		Calc coord	yes

18431+0742 C

Coord arcsec 2000

184258.74+074250.0

Mag

11.3

Calc delta mag

2.56

Calc coord

yes