18140-1801 TDT 754 (HD 166997)

18^h 13^m 58.73^s -18° 01' 23.7" P.A. 91.00 sep 0.5 mag 10.68,10.98

Coord 2000	18140-1801	Discov num	TDT 754	Comp		Coord arcsec 2000	18 13 58.73 -18 01 23.7
Date first	1991	Date last	1991	Obs	1
Pa first	91	Pa last	90.5	P.A. Now (θ)	90.5°
Sep first	0.5	Sep last	0.5	Sep. Now (ρ)	0.5"
Mag pri	10.68	Mag sec	10.98	delta mag (ΔM)	0.3	Spectral class
Pri motion ra	+003	Sec motion ra	+003
Pri motion dec	+000	Sec motion dec	+000
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 166997		Constellation	Sagittarius		Tycho2	6268-01906-1		Gaia DR2	4095714073695684736
HD	166997

WDS 18140-1801 TDT 754 (HD 166997) : 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
18140-1801	TDT 754		1991	1	91	0.5	10.68	10.98			181358.73-180123.7

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WDS 18140-1801 TDT 754 (HD 166997) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18140-1801 TDT 754 (HD 166997) : MEASURES

No records found.

WDS 18140-1801 (HD 166997) : VIRTUAL EYEPIECE

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WDS 18140-1801 (HD 166997) : ALADIN DSS IMAGE @ 18^h 13^m 58.73^s -18° 01' 23.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18140-1801 TDT 754 (HD 166997) : 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		18140-1801	TDT 754		91	0.5
Show		18146-1808	TDT 759		250	1.3	11
Show		18146-1750	ARA 269		68	14.6	15
Show		18126-1804	ARA 461		313	10.8	19
Show		18133-1817	ARA 462		343	14.8	19
Show		18146-1742	SKF 96		50	3.3	22
Show		18130-1819	TDT 739		253	2.2	23
Show		18152-1738	ARA 270		333	15.0	30
Show		18155-1738	ARA 271		255	8.9	33
Show		18115-1807	ARA 457		3	14.3	37
Show		18155-1840	SEE 349		134	10.6	38
Show		18160-1736	OCC9064		295	0.0	38
Show		18118-1825	HJ 2820	AB	279	5.8	38
Show		18118-1825	HJ 2820	AC	82	12.9	38
Show		18118-1825	HJ 2820	BC	87	18.5	39
Show		18166-1812	ARA 467		81	13.6	39
Show		18167-1755	ARA 274		147	10.8	40
Show		18156-1835	ARA 465		258	15.2	41
Show		18137-1845	FEN 28		256	3.6	44
Show		18124-1840	KPP4092		335	1.6	45
Show		18165-1830	DBR 310		63	2.1	46
Show		18147-1847	TOB 272	BC	324	18.4	47
Show		18166-1830	DBR 311		101	3.1	47
Show		18147-1847	TOB 272	AB	330	28.8	47
Show		18138-1847	HJ 594	AB	121	7.6	48
Show		18138-1847	HJ 594	AC	238	13.5	48
Show		18125-1847	ARA 460		86	13.7	50
Show		18169-1734	SKF 98		243	4.0	50
Show		18166-1835	DBR 312		37	4.4	51
Show		18171-1826	ARA 469		355	6.5	51
Show		18105-1745	J 2197	BC	82	6.2	51
Show		18174-1819	ARA 471		54	11.8	52
Show		18105-1745	J 2197	AB	109	72.6	52
Show		18125-1852	VAT 2		86	7.6	55
Show		18166-1842	ARA 468		131	5.9	56
Show		18112-1723	RST3161		241	0.4	56
Show		18177-1820	ARA 472		183	14.8	56
Show		18175-1828	OCC 12	Aa,Ab	-1	0.1	57
Show		18175-1828	RST3170	AB	169	8.6	57
Show		18160-1713	ARA 273		271	8.7	57
Show		18150-1857	RST3167		153	4.5	58
Show		18179-1750	TDT 781	Aa,Ab	130	0.4	58
Show		18179-1750	ARA 275	AB	349	10.4	58
Show		18120-1852	OCC9177		-1	0.0	59
Show		18158-1855	OCC 566		-1	0.1	60
Show		18181-1810	NSN 136		76	32.9	60
Show		18150-1900	ARA 741		355	14.7	61
Show		18153-1900	BU 284	BR	326	5.2	61
Show		18153-1900	BU 284	AB	358	18.1	62
Show		18153-1900	BU 284	AC	86	31.1	62
Show		18153-1900	BU 284	AD	192	57.8	62

WDS 18140-1801 : COMPONENTS

	A
B	pa=90.5° sep=0.48"

18140-1801 A

Componente originario normalizzato	AB		Name	HD 166997		Coord arcsec 2000	181358.73-180123.7		Mag	10.68
PmRA	3.00		PmDE	0.0		Tycho2	6268-01906-1		HD	166997

Tycho2

Tycho2	6268-01906-1	Pflag		RAmdeg	273.49475365	DEmdeg	-18.02325971
PmRA	3.1	PmDE	0.4	E RAmdeg	17	E DEmdeg	23
E pmRA	1.5	E pmDE	1.6	EpRAm	1988.29	EpDEm	1986.68
Num	7	Q RAmdeg	1.8	Q DEmdeg	1.4	Q pmRA	1.8
Q pmDE	1.4	BTmag	10.225	E BTmag	0.032	VTmag	10.167
E VTmag	0.041	Prox	999	TYC	T	HIP
CCDM		RAdeg	273.49474750	DEdeg	-18.02326333	EpRA 1990	1.75
EpDE 1990	1.67	E RAdeg	18.7	E DEdeg	25.9	Posflg
Corr	0.0

18140-1801 B

Componente originario normalizzato	AB		Coord arcsec 2000	181358.76-180123.7		Mag	10.98		PmRA	3.00
PmDE	0.0		Calc delta mag	0.3		Calc coord	yes