18313-1306 EVS 8 (X Sct)

18^h 31^m 19.75^s -13° 06' 29.5" P.A. 96.00 sep 12.8 mag 10.10,13.80 Sp G5III dist. 406.5 pc (1326 l.y.)

Coord 2000	18313-1306	Discov num	EVS 8	Comp		Coord arcsec 2000	18 31 19.75 -13 06 29.5
Date first	1990	Date last	2015	Obs	5
Pa first	97	Pa last	95.9	P.A. Now (θ)	95.9°
Sep first	13.0	Sep last	12.833	Sep. Now (ρ)	12.833"
Mag pri	10.10	Mag sec	13.80	delta mag (ΔM)	3.7	Spectral class	G5III (yellow)
Pri motion ra	+002	Sec motion ra
Pri motion dec	-005	Sec motion dec
Notes	N V (See Notes, Proper motion indicates physical)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Var name	X Sct		Constellation	Scutum		HIP	90791		Tycho2	5699-00280-1
Gaia DR2	4104857784196182400		BD	BD-13 5014		Distance	406.5		Distance ly	1326

WDS 18313-1306 EVS 8 (X Sct) : NOTES

discov_num	notes	refcode
EVS 8	Classical Cepheid X Sct.

REFERENCES

refcode	metd	author	reference
Evs1993	C -	Udalski, A. & Evans, N.R.	1993AJ....106..348U
Evs1993		AJ 106, 348, 1993
Evs1994	C -	Evans, N.R. & Udalski, A.	1994AJ....108..653E
Evs1994		AJ 108, 653, 1994
Evs2005	Ha j	Evans, N.R., Schaefer, G., Bond, H., Bono, G., Karovska, M., Nelan, E., &	2005AAS...207.1104E
Evs2005		Sasselov, D.
Evs2005	+orb	AAS meeting 207, #11.04, 2006
Evs2006	H j	Evans, N.R., Franz, O., Massa, D., Mason, B., Walker, R.L., & Marovska, M.	2006PASP..118.1545E
Evs2006	+S	PASP 118, 1545, 2006
Evs2008	Ha j	Evans, N.R., Schaefer, G.H., Bond, H., Bono, G., Karovska, M., Nelan, E.,	2008AJ....136.1137E
Evs2008		Sasselov, D., & Mason, B.D.
Evs2008		AJ 136, 1137, 2008
Evs2009	Hs j	Evans, N.R., Massa, D., & Proffitt, C.	2009AJ....137.3700E
Evs2009	+E2	AJ 137, 3700, 2009
Evs2013	Hp j	Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Karovska, M., & Tingle, E.	2013AJ....146...93E
Evs2013	+X	AJ 146, 93, 2013
Evs2016a	H3 -	Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Tingle, E., Karovska, M., &	2016AJ....151..129E
Evs2016a		Pillitteri, I.
Evs2016a		AJ 151, 129, 2016
Evs2016a		(some theta values replaced with more precise values from Evs2016b)	2016AJ....151..108E
Evs2016b	H3 -	Evans, N.R., Pillitteri, I., Wolk, S., Karovska, M., Tingle, E., Guinan, E.,	2016AJ....151..108E
Evs2016b		Engle, S., Bond, H.E., Schaefer, G.H., & Mason, B.D.
Evs2016b		AJ 151, 108, 2016 (most measures also in Evs2016a)	2016AJ............E
Evs2018	H -	Evans, N.R., Karovska, M., Bond, H.E., Schaefer, G.H., Sahu, K.C., Mack, J.,	2018ApJ...863..187E
Evs2018	+orb	Nelan, E.P., Gallenne, A. & Tingle, E.D.
Evs2018		ApJ 863, 187, 2018
Evs2020	- -	Evans, N.R., Pillitteri, I., Molnar, L., Szabados, L., Plachy, E., Szabo, R.,	2020AJ....159..121E
Evs2020		Engle, S., Guinan, E., Wolk, S., Gunther, H.M., Neilson, H., Marengo, M., Matthews,
Evs2020		L.D., Moschou, S., Drake, J.J., Kashyap, V., Kervella, P., Tordai, T., Somogyi, P.
Evs2020		& Burki, G.
Evs2020		AJ 159, 121, 2020
Evs2020b	H3	Evans, N.R., Gunther, H.M., Bond, H.E., Schaefer, G.H., Mason, B.D., Karovska, M.,	2020ApJ...905...81E
Evs2020b		Tingle, E., Wolk, S., Engle, S., Guinan, E., Pillitteri, I., Proffitt, C.,
Evs2020b		Kervella, P. & Gallenne, A.
Evs2020b		ApJ 905, 81, 2020

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18313-1306	EVS 8		1990	1	97	13.0	10.10	13.80	G5III	NV	183119.75-130629.5
18313-1306	EVS 8		2000	2	96	12.9	10.10	13.80	G5III	NV	183119.75-130629.5
18313-1306	EVS 8		2015	3	96	12.7	10.10	13.80	G5III	NV	183119.75-130629.5

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

WDS 18313-1306 EVS 8 (X Sct) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18313-1306 EVS 8 (X Sct) : MEASURES

No records found.

WDS 18313-1306 (X Sct) : 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 18313-1306 (X Sct) : ALADIN DSS IMAGE @ 18^h 31^m 19.75^s -13° 06' 29.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18313-1306 EVS 8 (X Sct) : 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		18313-1306	EVS 8		96	12.8	1
Show		18308-1309	BRT2754		328	4.6	8
Show		18303-1321	TDT 917		33	7.6	22
Show		18300-1257	HU 69		233	0.3	22
Show		18328-1304	J 1745		53	8.8	23
Show		18322-1235	RST4016		31	0.9	35
Show		18339-1339	SLE 192		194	8.5	50
Show		18299-1216	HU 68		118	3.1	55
Show		18321-1400	HO 435	AB	228	1.7	56
Show		18321-1400	HO 435	AC	269	23.9	56
Show		18321-1400	HO 435	AD	80	16.7	56
Show		18321-1400	HO 435	AE	1	21.3	56
Show		18292-1216	KPP1683		264	13.0	60
Show		18276-1240	SKF2390		165	0.6	61
Show		18359-1300	LDS6171		270	5.0	68
Show		18357-1246	J 2133	AB	15	7.4	70
Show		18357-1246	J 2133	AD	77	13.0	70
Show		18357-1246	J 2133	BC	321	5.6	70
Show		18358-1246	J 2135	AB	19	4.9	72
Show		18358-1246	J 2135	BC	21	4.9	72
Show		18309-1418	BRT 592		321	6.4	73
Show		18271-1223	SKF2389		329	4.1	77
Show		18332-1418	SLE 185	AB	253	11.5	77
Show		18332-1418	SLE 185	AC	288	44.5	77
Show		18355-1356	SLE 204		234	25.0	80
Show		18287-1420	J 1831		349	5.6	83
Show		18315-1430	BRT 593		355	5.6	84
Show		18341-1421	RST4017		211	0.2	85
Show		18337-1426	SLE 190		34	14.1	87
Show		18367-1357	LEO 20	AB	255	4.1	94
Show		18367-1357	LEO 20	AC	120	24.4	94
Show		18323-1439	CHR 73		254	0.0	94
Show		18362-1407	SNA 92		72	0.0	94
Show		18365-1159	BAR 10		134	0.4	102
Show		18254-1212	BRT2753		165	4.0	103
Show		18242-1303	BRT2752		92	2.5	104
Show		18269-1429	J 520		294	5.7	104
Show		18261-1422	TDT 864		279	0.7	108
Show		18349-1442	STF2337	AB	296	16.6	110
Show		18349-1442	ARN 47	AC	80	377.8	110
Show		18283-1446	BRT 591		18	3.8	110
Show		18309-1456	FOX 231		8	8.9	110
Show		18279-1444	J 1651		76	3.2	110
Show		18387-1332	BRT2756		336	4.5	110
Show		18385-1234	J 1595		64	11.3	111
Show		18381-1400	BU 135	AB	189	2.5	113
Show		18381-1400	BU 135	AC	78	15.0	113
Show		18381-1400	SLE 218	AD	338	120.7	113
Show		18381-1400	SLE 218	AE	108	118.7	113
Show		18381-1400	B 2911	AF	56	36.3	113
Show		18381-1400	B 2911	AG	74	39.8	113

WDS 18313-1306 : COMPONENTS

	A
B	pa=96.1° sep=12.50"

18313-1306 A

Componente originario normalizzato	AB	Name	X Sct	Coord arcsec 2000	183119.75-130629.5	Mag	10.1
Spectral class	G5III (yellow)	PmRA	2.00	PmDE	-5.0	HIP	90791
Tycho2	5699-00280-1	BD	BD-13 5014

Tycho2

Tycho2	5699-00280-1	Pflag		RAmdeg	277.83229394	DEmdeg	-13.10817442
PmRA	2.0	PmDE	-0.7	E RAmdeg	27	E DEmdeg	30
E pmRA	1.6	E pmDE	1.6	EpRAm	1981.81	EpDEm	1978.09
Num	7	Q RAmdeg	1.5	Q DEmdeg	0.7	Q pmRA	1.6
Q pmDE	0.8	BTmag	11.399	E BTmag	0.084	VTmag	10.182
E VTmag	0.047	Prox	999	TYC	T	HIP	90791
CCDM		RAdeg	277.83228444	DEdeg	-13.10816694	EpRA 1990	1.77
EpDE 1990	1.74	E RAdeg	35.1	E DEdeg	43.7	Posflg
Corr	-0.1

Hipparcos

Catalog	H	HIP	90791	Proxy		RAhms	18 31 19.75
DEdms	-13 06 29.4	Vmag	9.88	VarFlag	3	R Vmag	T
RAdeg	277.832	DEdeg	-13.1082	AstroRef		Plx	0.97
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD		BD	BD-13 5014
CD		CP		Dm number	-13 5014	VIred	1.33
SpType	F5I	R SpType		Coord arcsec 2000	183119.75-130629.4

Hipparcos 2

HIP	90791	Sn	5	So	0	Nc	1
RArad	4.8490880896	DErad	-0.2287807229	Plx	2.46	PmRA	1.73
PmDE	-4.83	E RArad	1.21	E DErad	0.96	E Plx	1.36
E pmRA	1.44	E pmDE	1.12	Hpmag	10.0412	E Hpmag	0.0735
SHp	0.32	VA	1	BV	0.951	E BV	0.08
VI	0.94

18313-1306 B

Componente originario normalizzato	AB		Coord arcsec 2000	183120.60-130630.8		Mag	13.8		Calc delta mag	3.7
Calc coord	yes