17590-1754 TDS 894 (HD 312381)

17^h 58^m 58.54^s -17° 54' 23.7" P.A. 13.00 sep 1.3 mag 11.13,11.52 Sp A0

Coord 2000	17590-1754	Discov num	TDS 894	Comp		Coord arcsec 2000	17 58 58.54 -17 54 23.7
Date first	1991	Date last	2015	Obs	3
Pa first	13	Pa last	12.7	P.A. Now (θ)	12.7°
Sep first	1.2	Sep last	1.264	Sep. Now (ρ)	1.264"
Mag pri	11.13	Mag sec	11.52	delta mag (ΔM)	0.39	Spectral class	A0 (white)
Pri motion ra	+000	Sec motion ra	+000
Pri motion dec	+001	Sec motion dec	+001
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 312381		Constellation	Sagittarius		Tycho2	6254-01050-1		Gaia DR2	4143756379577539584
HD	312381

WDS 17590-1754 TDS 894 (HD 312381) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
TDS		Tycho Double Star (from additional DD list)	...................
TDT		Tycho Double Star (from additional DD list)	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17590-1754	TDS 894		1991	1	13	1.2	11.13	11.52			175858.54-175423.7
17590-1754	TDS 894		2015	2	13	1.3	11.13	11.52	A0		175858.54-175423.7

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WDS 17590-1754 TDS 894 (HD 312381) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17590-1754 TDS 894 (HD 312381) : MEASURES

No records found.

WDS 17590-1754 (HD 312381) : VIRTUAL EYEPIECE

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WDS 17590-1754 (HD 312381) : ALADIN DSS IMAGE @ 17^h 58^m 58.54^s -17° 54' 23.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17590-1754 TDS 894 (HD 312381) : 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		17590-1754	TDS 894		13	1.3
Show		17584-1747	RST3140		320	0.6	11
Show		17574-1804	A 2254		171	0.3	25
Show		17590-1820	ARA 449		288	14.1	26
Show		17594-1724	RST3144		97	0.4	32
Show		18011-1804	A 2256	AB	161	0.2	32
Show		18011-1804	A 2256	AB,C	4	6.8	32
Show		18011-1804	A 2256	AB,D	128	7.2	32
Show		18011-1804	A 2256	AB,E	124	21.9	32
Show		18007-1721	SKF 86		2	4.4	42
Show		17590-1658	ARA 97		184	6.3	57
Show		17551-1818	ARA 448		68	7.6	60
Show		18009-1858	HJ 2815		104	14.4	70
Show		17554-1843	RST3136		353	1.9	70
Show		17569-1903	FEN 25		14	5.1	75
Show		17543-1828	A 2253		75	0.4	75
Show		17571-1906	ARA 719		150	15.0	76
Show		18039-1832	ARA 450		66	8.0	81
Show		17536-1726	HDO 147	AB	205	12.2	82
Show		17536-1726	SKF 85	AC	284	3.1	82
Show		17582-1916	CHR 66		111	0.4	83
Show		18023-1903	ARA 722		269	7.2	84
Show		17579-1921	RST5097		183	0.9	88
Show		17569-1920	B 2846		141	10.9	91
Show		18004-1923	OCC 526		-1	0.4	92
Show		18036-1859	TSN 185		325	0.2	93
Show		17574-1925	SKF 933		161	3.8	94
Show		17577-1927	OCC 525		-1	0.3	95
Show		17590-1620	RST3989		171	2.4	95
Show		18025-1916	BHA 22		63	3.8	96
Show		18046-1702	HU 194		297	0.4	97
Show		17546-1911	HJ 2812		134	12.5	100
Show		18041-1644	RST3993		14	1.0	102
Show		17517-1742	TDT 537		231	0.5	105
Show		18039-1913	B 2431		285	9.7	105
Show		18039-1913	OCC 537	Aa,Ab	104	0.9	105
Show		18010-1614	TDT 637		313	0.6	106
Show		18033-1919	BRT1512		34	3.8	106
Show		18047-1903	B 2852		144	4.1	107
Show		18048-1902	OCC 536		-1	0.1	108
Show		17546-1924	TDT 567		176	1.7	109
Show		18012-1942	B 2849		351	12.5	112
Show		17543-1927	DOO 69		88	11.6	114
Show		18055-1906	ARA 727		24	9.9	117
Show		18066-1712	HJ 2818		139	17.7	117
Show		17520-1651	TDT 543		185	0.5	119
Show		17535-1623	WSI 64		102	2.1	121
Show		17567-1559	ARA 7		155	13.6	121
Show		17576-1953	OCC1021		-1	0.0	121
Show		18011-1952	A 2387	AB	44	1.0	122
Show		18011-1952	I 9027	AC	301	33.3	122

WDS 17590-1754 : COMPONENTS

	A
B	pa=12.1° sep=1.26"

17590-1754 A

Componente originario normalizzato	AB		Name	HD 312381		Coord arcsec 2000	175858.54-175423.7		Mag	11.13
Spectral class	A0 (white)		PmRA	0.00		PmDE	1.0		Tycho2	6254-01050-1

Tycho2

Tycho2	6254-01050-1	Pflag	P	RAmdeg	269.74393479	DEmdeg	-17.90658225
PmRA	0.4	PmDE	0.9	E RAmdeg	51	E DEmdeg	65
E pmRA	3.2	E pmDE	3.3	EpRAm	1988.38	EpDEm	1986.29
Num	3	Q RAmdeg	0.3	Q DEmdeg	2.5	Q pmRA	0.3
Q pmDE	2.5	BTmag	11.809	E BTmag	0.097	VTmag	11.129
E VTmag	0.094	Prox	12	TYC	T	HIP
CCDM		RAdeg	269.74389583	DEdeg	-17.90674167	EpRA 1990	1.82
EpDE 1990	1.78	E RAdeg	52.0	E DEdeg	68.2	Posflg	D
Corr	0.0

17590-1754 B

Componente originario normalizzato	AB	Coord arcsec 2000	175858.56-175422.5	Mag	11.52	PmRA	0.00
PmDE	1.0	Tycho2	6254-01050-2	HD	312381	Calc delta mag	0.39
Calc coord	yes

Tycho2

Tycho2	6254-01050-2	Pflag	P	RAmdeg	269.74393479	DEmdeg	-17.90658225
PmRA	0.4	PmDE	0.9	E RAmdeg	51	E DEmdeg	65
E pmRA	3.2	E pmDE	3.3	EpRAm	1988.38	EpDEm	1986.29
Num	3	Q RAmdeg	0.3	Q DEmdeg	2.5	Q pmRA	0.3
Q pmDE	2.5	BTmag	11.880	E BTmag	0.108	VTmag	11.517
E VTmag	0.129	Prox	12	TYC	T	HIP
CCDM		RAdeg	269.74397722	DEdeg	-17.90640639	EpRA 1990	1.83
EpDE 1990	1.78	E RAdeg	62.8	E DEdeg	82.7	Posflg	D
Corr	0.0