18314-1048 STF 2325 (HD 170740)

18^h 31^m 25.69^s -10° 47' 45.0" P.A. 257.00 sep 12.4 mag 5.77,9.31 Sp B2V dist. 330.03 pc (1076.56 l.y.)

Coord 2000	18314-1048	Discov num	STF2325	Comp		Coord arcsec 2000	18 31 25.69 -10 47 45.0
Date first	1796	Date last	2005	Obs	30
Pa first	256	Pa last	256.5	P.A. Now (θ)	256.5°
Sep first	12.2	Sep last	12.41	Sep. Now (ρ)	12.41"
Mag pri	5.77	Mag sec	9.31	delta mag (ΔM)	3.54	Spectral class	B2V (blue-white)
Pri motion ra	+003	Sec motion ra	+002
Pri motion dec	-018	Sec motion dec	-018
Notes	N (See Notes)

rPM=0.055 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 170740	Constellation	Scutum	SAO	161569	HIP	90804
Tycho2	5695-00802-1	Gaia DR2	4154910272219704960	HD	170740	HR	6946
GC	25282	ADS	11414	BD	BD-10 4713	Distance	330.03
Distance ly	1076.56

WDS 18314-1048 STF 2325 (HD 170740) : NOTES

discov_num	notes	refcode
STF2325	H N 54.	MEv2010

REFERENCES

refcode	metd	author	reference
MEv2010	-	MacEvoy, B.	...................
MEv2010		private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)

DISCOVERER

idgroup	discov	author
1	STF	Struve, F.G.W.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18314-1048	STF2325		2005	30	257	12.4	5.77	9.31	B2V	D	183125.69-104745.0
18314-1048	STF2325		2010	31	257	11.4	5.77	9.31	B2V	N	183125.69-104745.0

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

WDS 18314-1048 STF 2325 (HD 170740) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18314-1048 STF 2325 (HD 170740) : MEASURES

No records found.

WDS 18314-1048 (HD 170740) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 18314-1048 (HD 170740) : ALADIN DSS IMAGE @ 18^h 31^m 25.69^s -10° 47' 45.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18314-1048 STF 2325 (HD 170740) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		18314-1048	STF2325		257	12.4
Show		18305-1052	HDS2623	Aa,Ab	80	0.0	14
Show		18308-1108	LDS 642		336	80.6	24
Show		18331-1042	HDS2632	AB	24	0.5	25
Show		18331-1042	GII 268	Aa,Ab	138	0.1	25
Show		18334-1026	BU 642	AB	89	4.2	37
Show		18334-1026	BU 642	AC	30	63.3	37
Show		18311-0958	KPP2767		237	11.7	50
Show		18343-1015	DAM 321		53	4.5	54
Show		18276-1039	DAM 320	AB	64	16.5	58
Show		18276-1039	DAM 320	AC	97	8.0	58
Show		18362-1053	EGN 23	AB	140	3.5	70
Show		18362-1053	EGN 23	AC	214	8.7	70
Show		18362-1053	EGN 23	AD	233	13.5	70
Show		18362-1053	EGN 23	AE	203	13.6	70
Show		18362-1053	EGN 23	AF	154	14.5	70
Show		18362-1053	EGN 23	AG	213	14.6	70
Show		18362-1053	EGN 23	AH	145	16.4	70
Show		18362-1053	EGN 23	AI	307	19.3	70
Show		18362-1053	EGN 23	AJ	210	18.4	70
Show		18362-1053	EGN 23	AK	171	19.1	70
Show		18362-1053	EGN 23	AL	221	21.1	70
Show		18362-1053	EGN 23	AM	235	21.8	70
Show		18270-1125	TDT 874		299	0.8	75
Show		18285-1013	HJ 5497		224	16.1	75
Show		18322-0922	BU 247		167	7.9	87
Show		18299-1216	HU 68		118	3.1	91
Show		18292-1216	KPP1683		264	13.0	95
Show		18379-1111	BRT2755		132	3.7	99
Show		18355-0929	SLE 207		252	16.4	100
Show		18378-1121	HU 70		181	0.2	100
Show		18382-1115	RST4018		63	0.4	103
Show		18365-1159	BAR 10		134	0.4	104
Show		18322-1235	RST4016		31	0.9	108
Show		18271-1223	SKF2389		329	4.1	115
Show		18254-1212	BRT2753		165	4.0	122
Show		18331-0845	HJ 5498	AB	95	14.4	126
Show		18331-0845	HJ 5498	AC	168	25.2	126
Show		18331-0845	ABH 101	AD	124	49.4	126
Show		18331-0845	ABH 101	AE	165	83.6	126
Show		18276-1240	SKF2390		165	0.6	126
Show		18234-1137	BVD 126		290	19.2	129
Show		18300-1257	HU 69		233	0.3	131
Show		18271-0853	HDS2608		344	0.1	132
Show		18242-1213	HU 63		306	4.1	137
Show		18357-1246	J 2133	BC	321	5.6	138
Show		18357-1246	J 2133	AB	15	7.4	138
Show		18357-1246	J 2133	AD	77	13.0	138
Show		18328-1304	J 1745		53	8.8	138
Show		18358-1246	J 2135	BC	21	4.9	138
Show		18358-1246	J 2135	AB	19	4.9	139

WDS 18314-1048 : COMPONENTS

	A
B	pa=256.3° sep=12.20"

18314-1048 A

Componente originario normalizzato	AB	Name	HD 170740	Coord arcsec 2000	183125.69-104745.0	Mag	5.77
Spectral class	B2V (blue-white)	PmRA	3.00	PmDE	-18.0	SAO	161569
HIP	90804	Tycho2	5695-00802-1	HD	170740	HR	6946
GC	25282	BD	BD-10 4713

Tycho2

Tycho2	5695-00802-1	Pflag		RAmdeg	277.85706216	DEmdeg	-10.79583606
PmRA	2.9	PmDE	-17.8	E RAmdeg	4	E DEmdeg	4
E pmRA	0.9	E pmDE	0.8	EpRAm	1991.41	EpDEm	1991.29
Num	16	Q RAmdeg	1.2	Q DEmdeg	1.5	Q pmRA	1.3
Q pmDE	1.5	BTmag	5.976	E BTmag	0.015	VTmag	5.767
E VTmag	0.010	Prox	124	TYC	T	HIP	90804
CCDM	A	RAdeg	277.85705528	DEdeg	-10.79579500	EpRA 1990	1.76
EpDE 1990	1.69	E RAdeg	3.7	E DEdeg	4.0	Posflg
Corr	0.0

SAO

SAO	161569	DelFlag		RA1950		PmRA1950	-0.0002
DE1950		PmDE1950	-0.017	Vmag	5.8	SpType	B3
Double code		Source	70	CatNum	25282	DM	BD-10 4713
DMcomp		BDsup		HD	170740	M HD	0
GC	25282	RA1950rad	4.83741461	DE1950rad	-0.18905416	PmRA2000	0
PmDE2000	-0.015

Hipparcos

Catalog	H	HIP	90804	Proxy		RAhms	18 31 25.69
DEdms	-10 47 44.9	Vmag	5.77	VarFlag	1	R Vmag	G
RAdeg	277.857	DEdeg	-10.7958	AstroRef	A	Plx	4.7
CCDM	18314-1048	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	257	Rho	12.433	HD	170740	BD	BD-10 4713
CD		CP		Dm number	-10 4713	VIred	0.44
SpType	B2V	R SpType		Coord arcsec 2000	183125.69-104744.9

Hipparcos 2

HIP	90804	Sn	15	So	3	Nc	2
RArad	4.8495204387	DErad	-0.188422134	Plx	3.03	PmRA	1.25
PmDE	-17.76	E RArad	0.68	E DErad	0.54	E Plx	0.76
E pmRA	0.73	E pmDE	0.58	Hpmag	5.8048	E Hpmag	0.0047
SHp	0.012	VA	2	BV	0.379	E BV	0.006
VI	0.44

CCDM

Ccdm	18314-1048	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.72	DDEs	15.3
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	5.9	Sp	B3	PmNote	*
PmRA	7	PmDE	-16	Dm number	-10 4713	Cat1	BD
Name2	161569	Cat2	SAO	HD	170740	M HD
ADS BDS	A11414	M ADS BDS		N IDS		IDS	18259S1052A
HIC	90804

18314-1048 B

Componente originario normalizzato	AB		Coord arcsec 2000	183124.89-104747.9		Mag	9.31		PmRA	2.00
PmDE	-18.0		Calc delta mag	3.54		Calc coord	yes

CCDM

Ccdm	18314-1048	RComp		Comp	B	Note1
Note2		Discov num	STF2325	DRAs	0.98	DDEs	12.6
R dRAs	90	Year	1829	Theta	257	Rho	12.3
Obs	10	Vmag	9.2	Sp		PmNote	*
PmRA	16	PmDE	-12	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A11414	M ADS BDS		N IDS		IDS	18259S1052B
HIC