18044-2421 TDT 662

18^h 04^m 21.27^s -24° 21' 18.2" P.A. 121.00 sep 1.8 mag 9.20,10.98 Sp B0.5V

Coord 2000	18044-2421	Discov num	TDT 662	Comp		Coord arcsec 2000	18 04 21.27 -24 21 18.2
Date first	1991	Date last	1991	Obs	1
Pa first	121	Pa last	120.6	P.A. Now (θ)	120.6°
Sep first	1.8	Sep last	1.78	Sep. Now (ρ)	1.78"
Mag pri	9.20	Mag sec	10.98	delta mag (ΔM)	1.78	Spectral class	B0.5V (blue-white)
Pri motion ra	+002	Sec motion ra	+002
Pri motion dec	-005	Sec motion dec	-005
Notes	X (Dubious double)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Sagittarius

Tycho2

6842-01562-1

Gaia DR2

4065975243425948288

WDS 18044-2421 TDT 662 : 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
18044-2421	TDT 662		1991	1	121	1.8	9.20	10.98			180421.27-242118.2

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WDS 18044-2421 TDT 662 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18044-2421 TDT 662 : MEASURES

No records found.

WDS 18044-2421 : VIRTUAL EYEPIECE

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WDS 18044-2421 : ALADIN DSS IMAGE @ 18^h 04^m 21.27^s -24° 21' 18.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18044-2421 TDT 662 : 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		18044-2421	TDT 662		121	1.8
Show		18044-2423	RBR 8		318	3.1	3
Show		18047-2421	HJ 5010		351	3.1	5
Show		18039-2419	SNA 79		81	0.1	7
Show		18039-2422	SNA 78		69	0.0	7
Show		18042-2415	BU 1126	AB	55	0.6	7
Show		18042-2415	HJ 5009	AB,C	21	4.6	7
Show		18042-2415	DAW 218	AB,D	138	24.9	7
Show		18037-2423	AEN 1	AB	9	3.5	10
Show		18037-2423	SBE 1	Aa,Ab	222	0.0	10
Show		18026-2415	RST3149	AB	62	1.7	25
Show		18026-2415	ARG 31	AC	26	35.6	25
Show		18026-2415	BU 1462	AD	196	27.3	25
Show		18061-2412	B 376	AB	97	1.9	26
Show		18061-2412	SNA 81	Aa,Ab	116	0.0	26
Show		18061-2412	SNA 81	AC	225	6.6	26
Show		18061-2412	SNA 81	AD	8	7.9	26
Show		18056-2356	ARA2213		235	14.5	32
Show		18054-2343	TDT 672		103	1.6	41
Show		18023-2452	RST3148		135	0.5	42
Show		18009-2413	RST3147		205	0.2	49
Show		18049-2326	ARA2210		145	8.7	57
Show		18057-2514	OCC1041	AB	-1	0.0	57
Show		18057-2514	OCC1041	AC	-1	0.0	57
Show		18056-2328	ARA2212		155	10.0	57
Show		18055-2326	SKF2529	AB	56	1.8	58
Show		18055-2326	SKF2529	AC	271	1.5	58
Show		18055-2326	SKF2529	BC	251	3.1	58
Show		18041-2523	OCC1036	AB	-1	0.0	63
Show		18041-2523	OCC1036	AC	-1	0.0	63
Show		18036-2523	OCC1035		-1	0.0	63
Show		18051-2317	B 375		168	0.9	66
Show		18005-2341	SKF2528	DE	223	3.0	66
Show		18005-2341	ALD 110	AB	73	3.9	67
Show		18005-2341	SKF2528	AC	19	1.7	67
Show		18005-2341	SKF2528	AD	203	6.5	67
Show		18034-2526	OCC1034		-1	0.0	67
Show		18040-2529	HDO 148		15	4.6	68
Show		18022-2318	B 2851		156	10.5	70
Show		18064-2525	RCH 6		208	2.3	71
Show		18094-2432	BRT3062		125	4.6	71
Show		17598-2349	GUL 1		243	3.7	71
Show		17592-2426	RST3143		260	2.5	71
Show		18055-2312	ARA2211		89	10.8	72
Show		18004-2333	RST3146		228	0.5	73
Show		18029-2533	OCC1033	AB	-1	0.0	74
Show		18029-2533	OCC1033	AC	-1	0.1	74
Show		18031-2535	RCH 3		359	0.0	76
Show		18077-2321	OCC 647		-1	0.1	77
Show		18083-2326	B 378		79	0.5	78
Show		18099-2406	BAR 9	AB	185	5.0	78

WDS 18044-2421 : COMPONENTS

	A
B	pa=123.0° sep=1.66"

18044-2421 A

Componente originario normalizzato	AB		Coord arcsec 2000	180421.27-242118.2		Mag	9.2		Spectral class	B0.5V (blue-white)
PmRA	2.00		PmDE	-5.0		Tycho2	6842-01562-1

Tycho2

Tycho2	6842-01562-1	Pflag		RAmdeg	271.08863564	DEmdeg	-24.35504662
PmRA	2.2	PmDE	-5.2	E RAmdeg	12	E DEmdeg	15
E pmRA	2.6	E pmDE	2.4	EpRAm	1991.53	EpDEm	1991.38
Num	3	Q RAmdeg	0.2	Q DEmdeg	0.5	Q pmRA	0.3
Q pmDE	0.5	BTmag	9.211	E BTmag	0.022	VTmag	9.219
E VTmag	0.026	Prox	955	TYC	T	HIP
CCDM		RAdeg	271.08863000	DEdeg	-24.35503500	EpRA 1990	1.79
EpDE 1990	1.88	E RAdeg	12.3	E DEdeg	15.4	Posflg
Corr	0.1

18044-2421 B

Componente originario normalizzato	AB		Coord arcsec 2000	180421.37-242119.1		Mag	10.98		PmRA	2.00
PmDE	-5.0		Calc delta mag	1.78		Calc coord	yes