18498-1655 TDT 4316 (HD 174144)

18^h 49^m 48.72^s -16° 55' 11.0" P.A. 333.00 sep 45.1 mag 9.89,12.03 Sp B9III

Coord 2000	18498-1655	Discov num	TDT4316	Comp		Coord arcsec 2000	18 49 48.72 -16 55 11.0
Date first	1905	Date last	2015	Obs	12
Pa first	334	Pa last	332.6	P.A. Now (θ)	332.6°
Sep first	45.5	Sep last	45.091	Sep. Now (ρ)	45.091"
Mag pri	9.89	Mag sec	12.03	delta mag (ΔM)	2.14	Spectral class	B9III (blue-white)
Pri motion ra	-006	Sec motion ra	-011
Pri motion dec	-006	Sec motion dec	-005
Notes	U (Proper motion indicates non-physical)

rPM=0.422

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 174144		Constellation	Sagittarius		SAO	161879		Tycho2	6285-04256-1
Gaia DR2	4099171011316487936		HD	174144		DM	BD-17 5334

WDS 18498-1655 TDT 4316 (HD 174144) : NOTES

No records found.

REFERENCES

No records found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18498-1655	TDT4316		1998	6	333	45.0	9.89	11.71		D	184948.72-165511.0
18498-1655	TDT4316		2000	8	333	45.0	9.89	11.71		D	184948.72-165511.0
18498-1655	TDT4316		2010	9	333	45.0	9.89	12.03	B9III		184948.72-165511.0
18498-1655	TDT4316		2015	10	333	45.1	9.89	12.03	B9III	U	184948.72-165511.0

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WDS 18498-1655 TDT 4316 (HD 174144) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18498-1655 TDT 4316 (HD 174144) : MEASURES

No records found.

WDS 18498-1655 (HD 174144) : VIRTUAL EYEPIECE

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WDS 18498-1655 (HD 174144) : ALADIN DSS IMAGE @ 18^h 49^m 48.72^s -16° 55' 11.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18498-1655 TDT 4316 (HD 174144) : 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		18498-1655	TDT4316		333	45.1
Show		18496-1654	HWE 44	AB	298	2.0	4
Show		18496-1654	HWE 44	AC	308	36.4	4
Show		18496-1654	KNP 3	AD	200	22.2	4
Show		18509-1646	HLD 148		30	5.0	16
Show		18487-1702	J 2235	AB	203	90.0	17
Show		18487-1702	J 2235	BC	5	6.6	19
Show		18480-1647	HJ 2838		335	33.4	28
Show		18516-1719	HU 255		166	1.4	35
Show		18477-1633	RST4020		26	3.5	38
Show		18528-1658	J 2238		182	4.8	45
Show		18494-1740	TDT1072		310	0.7	46
Show		18528-1725	HU 257		341	2.1	52
Show		18529-1625	RST4021		118	0.2	54
Show		18494-1750	HJ 2840		173	15.2	55
Show		18510-1747	HJ 2842		338	29.9	55
Show		18530-1623	RST4022		312	0.4	57
Show		18457-1624	J 1656		287	7.6	66
Show		18503-1812	TDT1080		134	0.9	77
Show		18506-1813	RST3200			0.7	79
Show		18549-1733	RST3205	AB	300	0.5	82
Show		18549-1733	HJ 2843	AB,C	339	22.0	82
Show		18480-1814	RST3198		154	0.4	83
Show		18505-1818	TDT1081		75	0.5	84
Show		18557-1646	J 1661		98	4.5	85
Show		18444-1623	HJ 2835		303	15.3	85
Show		18482-1820	J 1636		78	7.1	86
Show		18480-1817	WSI 36		262	15.8	87
Show		18555-1626	ARA 112		176	10.7	87
Show		18442-1733	HLD 146		194	2.2	88
Show		18551-1609	BRT 634		337	3.9	88
Show		18555-1623	SOZ 18		142	17.7	89
Show		18553-1738	HJ 2844		105	23.7	90
Show		18500-1826	J 1658		59	8.4	92
Show		18560-1637	J 1662		191	4.5	94
Show		18435-1725	RST3194		87	4.0	96
Show		18559-1735	HJ 2845		6	3.9	96
Show		18498-1836	TDT1075		97	0.5	102
Show		18461-1529	HU 251		304	2.6	102
Show		18488-1836	KUI 88		153	0.5	103
Show		18488-1838	RSS 491		334	10.8	104
Show		18517-1511	TDT1092		138	0.4	108
Show		18442-1539	BRT 633		42	4.8	111
Show		18531-1838	HO 569	AB	38	15.6	114
Show		18531-1838	OCC9186	Aa,Ab	-1	-1.0	114
Show		18505-1501	J 529		353	7.5	115
Show		18437-1534	J 2224		202	10.4	119
Show		18496-1854	OCC 454		-1	0.1	120
Show		18427-1547	HU 250		298	2.2	123
Show		18453-1509	BRT 594		110	2.2	126
Show		18412-1731	FEN 34		325	3.8	130

WDS 18498-1655 : COMPONENTS

	A
B	pa=333.6° sep=44.69"

18498-1655 A

Componente originario normalizzato	AB	Name	HD 174144	Coord arcsec 2000	184948.72-165511.0	Mag	9.89
Spectral class	B9III (blue-white)	PmRA	-6.00	PmDE	-6.0	SAO	161879
Tycho2	6285-04256-1	HD	174144	DM	BD-17 5334

Tycho2

Tycho2	6285-04256-1	Pflag		RAmdeg	282.45301292	DEmdeg	-16.91970884
PmRA	0.0	PmDE	-2.9	E RAmdeg	15	E DEmdeg	19
E pmRA	1.2	E pmDE	1.3	EpRAm	1987.88	EpDEm	1987.21
Num	11	Q RAmdeg	2.4	Q DEmdeg	2.3	Q pmRA	2.4
Q pmDE	2.2	BTmag	9.952	E BTmag	0.028	VTmag	9.889
E VTmag	0.036	Prox	451	TYC	T	HIP
CCDM		RAdeg	282.45300361	DEdeg	-16.91970722	EpRA 1990	1.71
EpDE 1990	1.68	E RAdeg	17.0	E DEdeg	21.3	Posflg
Corr	0.0

SAO

SAO	161879	DelFlag		RA1950		PmRA1950	-0.0009
DE1950		PmDE1950	0.018	Vmag	9.2	SpType	B9
Double code		Source	21	CatNum	6944	DM	BD-17 5334
DMcomp		BDsup		HD	174144	M HD	0
GC		RA1950rad	4.91710201	DE1950rad	-0.29631996	PmRA2000	-0.0008
PmDE2000	0.019

CCDM

Ccdm	18498-1655	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.59	DDEs	-9.5
R dRAs	10	Year		Theta		Rho
Obs	3	Vmag	9.7	Sp	B9	PmNote	*
PmRA	-13	PmDE	18	Dm number	-17 5334	Cat1	BD
Name2	161879	Cat2	SAO	HD	174144	M HD
ADS BDS	A11718	M ADS BDS		N IDS		IDS	18440S1701A
HIC

18498-1655 B

Componente originario normalizzato	AB		Coord arcsec 2000	184947.34-165431.0		Mag	12.03		PmRA	-11.00
PmDE	-5.0		Tycho2	6285-04198-1		Calc delta mag	2.14		Calc coord	yes

Tycho2

Tycho2	6285-04198-1	Pflag		RAmdeg	282.44696959	DEmdeg	-16.90858194
PmRA	-5.5	PmDE	-1.4	E RAmdeg	77	E DEmdeg	89
E pmRA	2.0	E pmDE	2.2	EpRAm	1966.32	EpDEm	1958.17
Num	5	Q RAmdeg	1.8	Q DEmdeg	2.9	Q pmRA	1.9
Q pmDE	2.9	BTmag	12.374	E BTmag	0.241	VTmag	11.708
E VTmag	0.185	Prox	451	TYC		HIP
CCDM		RAdeg	282.44698083	DEdeg	-16.90858222	EpRA 1990	1.73
EpDE 1990	1.71	E RAdeg	92.9	E DEdeg	114.8	Posflg
Corr	0.0

CCDM

Ccdm	18498-1655	RComp		Comp	B	Note1
Note2		Discov num	HWE 44	DRAs		DDEs
R dRAs		Year	1888	Theta	296	Rho	1.9
Obs	4	Vmag	10.2	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A11718	M ADS BDS		N IDS		IDS	18440S1701B
HIC