18334-3004 I 1370

18^h 33^m 21.15^s -30° 03' 51.2" P.A. 187.00 sep 3.8 mag 8.58,13.60 Sp A0V

Coord 2000	18334-3004	Discov num	I 1370	Comp		Coord arcsec 2000	18 33 21.15 -30 03 51.2
Date first	1925	Date last	2015	Obs	4
Pa first	176	Pa last	186.8	P.A. Now (θ)	186.8°
Sep first	4.1	Sep last	3.81	Sep. Now (ρ)	3.81"
Mag pri	8.58	Mag sec	13.60	delta mag (ΔM)	5.02	Spectral class	A0V (white)
Pri motion ra	-008	Sec motion ra
Pri motion dec	+005	Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Sagittarius		SAO	210298		Tycho2	7394-00716-1		Gaia DR2	4047797155173705728
HD	170941

WDS 18334-3004 I 1370 : NOTES

discov_num	notes	refcode
I 1370	Variable companion?	Jsp1964

REFERENCES

refcode	metd	author	reference
Jsp1964	Ma j	Jessup, M.K.	1964POMic...9...73R
Jsp1964		Pub. Univ. Michigan Obs. 9, 73, 1964

DISCOVERER

idgroup	discov	author
1	I	Innes, R.T.A.
5	I	MNRAS 57, 533, 1897 (data also in I__1897b,
5	I	I__1897c)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18334-3004	I 1370		1928	3	176	4.1	8.58	13.60	A0V		183321.15-300351.2
18334-3004	I 1370		2015	4	187	3.8	8.58	13.60	A0V	N	183321.15-300351.2

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WDS 18334-3004 I 1370 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18334-3004 I 1370 : MEASURES

No records found.

WDS 18334-3004 : VIRTUAL EYEPIECE

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WDS 18334-3004 : ALADIN DSS IMAGE @ 18^h 33^m 21.15^s -30° 03' 51.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18334-3004 I 1370 : 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		18334-3004	I 1370		187	3.8
Show		18352-3030	RST2066		312	0.9	37
Show		18360-3023	SKF2024		74	22.4	40
Show		18317-3055	HDS2628		353	1.1	55
Show		18291-2955	HDS2617		25	0.8	57
Show		18329-2906	SKF2130		134	3.0	58
Show		18328-3103	B 1366		313	1.2	59
Show		18287-3017	BRT3072		162	5.3	62
Show		18344-3109	RST2065	AB	3	1.1	67
Show		18344-3109	PRO 206	AC	161	15.7	67
Show		18334-3111	JSP 940		24	2.3	68
Show		18374-3046	B 1367		160	2.3	68
Show		18292-2921	B 2451		244	9.3	70
Show		18292-2916	B 2450		347	14.0	73
Show		18278-2949	RAG 2		265	11.1	74
Show		18293-3100	LEP 122		200	7.3	77
Show		18332-3121	FIN 7		136	3.4	78
Show		18394-3019	RSS 486		8	9.4	81
Show		18388-3046	SKF2535		44	3.9	82
Show		18359-2849	HJ 5051	AB	237	9.3	82
Show		18359-2849	HJ 5051	AC	296	91.6	82
Show		18359-2849	DOO 71	CD	34	4.3	82
Show		18281-2917	AAQ 3		74	3.5	83
Show		18354-3122	LDS6328	AB	119	7.5	84
Show		18354-3122	CVN 58	AC	310	6.0	84
Show		18354-3122	CVN 58	AD	211	7.3	84
Show		18354-3122	CVN 58	AE	202	7.6	84
Show		18354-3122	CVN 58	AF	307	7.9	84
Show		18354-3122	CVN 58	AG	70	8.1	84
Show		18354-3122	CVN 58	AH	212	8.5	84
Show		18354-3122	CVN 58	AI	81	8.9	84
Show		18354-3122	CVN 58	AJ	163	9.3	84
Show		18354-3122	CVN 58	AK	150	9.6	84
Show		18354-3122	CVN 58	AL	348	9.6	84
Show		18354-3122	CVN 58	AM	49	9.7	84
Show		18354-3122	CVN 58	AN	339	10.3	84
Show		18354-3122	CVN 58	AO	175	10.2	84
Show		18354-3122	CVN 58	AP	194	11.2	84
Show		18354-3122	CVN 58	AQ	330	11.3	84
Show		18354-3122	CVN 58	AR	197	11.4	84
Show		18354-3122	CVN 58	AS	87	11.5	84
Show		18354-3122	CVN 58	AT	179	12.0	84
Show		18354-3122	CVN 58	AU	222	12.2	84
Show		18354-3122	CVN 58	AV	124	12.6	84
Show		18354-3122	CVN 58	AW	69	12.7	84
Show		18354-3122	CVN 58	AX	165	13.2	84
Show		18354-3122	CVN 58	AY	178	13.3	84
Show		18354-3122	CVN 58	A,Za	182	13.6	84
Show		18354-3122	CVN 58	A,Zb	52	13.8	84
Show		18354-3122	CVN 58	A,Zc	114	13.8	84
Show		18354-3122	CVN 58	A,Zd	216	13.2	84

WDS 18334-3004 : COMPONENTS

	A
B	pa=185.9° sep=3.80"

18334-3004 A

Componente originario normalizzato	AB	Coord arcsec 2000	183321.15-300351.2	Mag	8.58	Spectral class	A0V (white)
PmRA	-8.00	PmDE	5.0	SAO	210298	Tycho2	7394-00716-1
HD	170941	DM	CD-3015832

Tycho2

Tycho2	7394-00716-1	Pflag		RAmdeg	278.33817329	DEmdeg	-30.06424478
PmRA	-1.4	PmDE	-12.8	E RAmdeg	5	E DEmdeg	8
E pmRA	1.7	E pmDE	1.4	EpRAm	1991.73	EpDEm	1990.90
Num	9	Q RAmdeg	1.2	Q DEmdeg	1.5	Q pmRA	1.2
Q pmDE	1.6	BTmag	8.648	E BTmag	0.017	VTmag	8.584
E VTmag	0.013	Prox	925	TYC	T	HIP
CCDM		RAdeg	278.33817667	DEdeg	-30.06421556	EpRA 1990	1.97
EpDE 1990	1.89	E RAdeg	5.4	E DEdeg	7.5	Posflg
Corr	-0.1

SAO

SAO	210298	DelFlag		RA1950		PmRA1950	-0.0033
DE1950		PmDE1950	0.054	Vmag	8.5	SpType	B9
Double code		Source	40	CatNum	10027	DM	CD-3015832
DMcomp		BDsup		HD	170941	M HD	0
GC		RA1950rad	4.84393939	DE1950rad	-0.52538289	PmRA2000	-0.0034
PmDE2000	0.054

18334-3004 B

Componente originario normalizzato	AB		Coord arcsec 2000	183321.12-300355.0		Mag	13.6		Calc delta mag	5.02
Calc coord	yes