18387-2114 ARA 1551

18^h 38^m 40.81^s -21° 13' 25.0" P.A. 137.00 sep 6.1 mag 13.10,13.20

Coord 2000	18387-2114	Discov num	ARA1551	Comp		Coord arcsec 2000	18 38 40.81 -21 13 25.0
Date first	1921	Date last	2015	Obs	8
Pa first	137	Pa last	136.5	P.A. Now (θ)	136.5°
Sep first	6.7	Sep last	6.061	Sep. Now (ρ)	6.061"
Mag pri	13.10	Mag sec	13.20	delta mag (ΔM)	0.1	Spectral class
Pri motion ra	-001	Sec motion ra	-004
Pri motion dec	+002	Sec motion dec	+003
Notes

rPM=0.632

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Sagittarius

Gaia DR2

4079668969259723136

WDS 18387-2114 ARA 1551 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Ara1961	Pa -	Aravamudan, S.	1961PASP...73..266A
Ara1961		PASP 73, 266, 1961
Ara1963	Pa -	Aravamudan, S.	.
Ara1963		Pub. Nizamiah Obs. 13, Pt.3, 1963

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18387-2114	ARA1551		1998	3	137	6.1	13.10	13.20		D	183840.81-211325.0
18387-2114	ARA1551		1999	4	136	6.1	13.10	13.20		D	183840.81-211325.0
18387-2114	ARA1551		2015	6	137	6.1	13.10	13.20			183840.81-211325.0

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WDS 18387-2114 ARA 1551 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18387-2114 ARA 1551 : MEASURES

No records found.

WDS 18387-2114 : VIRTUAL EYEPIECE

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WDS 18387-2114 : ALADIN DSS IMAGE @ 18^h 38^m 40.81^s -21° 13' 25.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18387-2114 ARA 1551 : NEIGHBORHOODS

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Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		18387-2114	ARA1551		137	6.1
Show		18385-2110	B 1888		302	4.8	5
Show		18389-2103	WSI 90	AB	138	0.0	11
Show		18389-2103	TNN 11	AC	340	5.0	11
Show		18389-2103	TNN 11	AD	30	6.4	11
Show		18379-2124	OCC 33		-1	0.1	16
Show		18378-2103	ARA1549		188	14.1	16
Show		18395-2101	RST5121	AB	21	4.2	17
Show		18395-2101	HJ 2833	AC	314	21.8	17
Show		18375-2130	ARA1548		336	14.8	24
Show		18406-2115	ARA1552		287	12.6	27
Show		18398-2052	OCC1078		-1	0.7	27
Show		18365-2128	ARA1547		230	11.0	35
Show		18386-2149	J 1633	AB	143	36.8	36
Show		18386-2149	J 1633	BC	149	7.5	37
Show		18393-2038	ARA1156		16	15.8	37
Show		18407-2139	RST5122		189	2.1	39
Show		18416-2108	KPP 422		299	4.7	42
Show		18372-2039	DON 914		174	0.4	42
Show		18405-2040	OCC1079		-1	0.0	42
Show		18381-2156	ARA1895		26	16.0	44
Show		18354-2118	ARA1544		180	6.1	46
Show		18406-2034	OCC1080		-1	0.0	48
Show		18391-2025	ARA1155		238	11.6	49
Show		18360-2146	ARA1545		203	12.9	50
Show		18386-2020	DON 917		51	1.1	54
Show		18361-2154	ARA1546		173	10.4	55
Show		18352-2140	HU 246		68	2.6	57
Show		18367-2019	HO 567		165	1.3	62
Show		18406-2016	ARA1157		356	9.5	64
Show		18431-2051	ARA1159		84	11.7	66
Show		18338-2119	ARA1543		253	8.5	69
Show		18353-2205	WNO 22		269	11.4	70
Show		18337-2132	ARA1542		114	11.6	72
Show		18337-2048	ARA1154		288	7.2	75
Show		18439-2130	KPP4118		341	3.9	76
Show		18407-1957	ARA1158		68	6.6	82
Show		18336-2030	DON 911		348	2.1	84
Show		18362-1950	ARA 756		325	9.5	90
Show		18411-2236	ARA1896		327	12.3	90
Show		18452-2117	ARA1553		273	10.1	91
Show		18324-2138	ARA1541		349	7.1	91
Show		18377-2243	ARA1894		270	7.3	91
Show		18377-2244	ARA1893		137	12.5	92
Show		18436-2013	DON 920		336	1.4	93
Show		18397-2249	SHN 231		-1	0.1	97
Show		18433-2225	I 1381		37	1.3	97
Show		18328-2022	KPP 416		159	4.9	98
Show		18321-2040	ARA1152		134	14.5	99
Show		18453-2039	EVS 37	AB	128	3.1	99
Show		18453-2039	EVS 37	AC	67	10.8	99

WDS 18387-2114 : COMPONENTS

	A
B	pa=138.5° sep=5.87"

18387-2114 A

Componente originario normalizzato	AB		Coord arcsec 2000	183840.81-211325.0		Mag	13.1		PmRA	-1.00
PmDE	2.0

18387-2114 B

Componente originario normalizzato	AB		Coord arcsec 2000	183841.09-211329.4		Mag	13.2		PmRA	-4.00
PmDE	3.0		Calc delta mag	0.1		Calc coord	yes