15312-1852 HO 393 AB

15^h 31^m 11.62^s -18° 52' 05.9" P.A. 290.00 sep 6.7 mag 10.89,14.80

Coord 2000	15312-1852	Discov num	HO 393	Comp	AB	Coord arcsec 2000	15 31 11.62 -18 52 05.9
Date first	1891	Date last	2015	Obs	10
Pa first	275	Pa last	289.5	P.A. Now (θ)	289.5°
Sep first	3.7	Sep last	6.692	Sep. Now (ρ)	6.692"
Mag pri	10.89	Mag sec	14.80	delta mag (ΔM)	3.91	Spectral class
Pri motion ra	+007	Sec motion ra	-123
Pri motion dec	-008	Sec motion dec	+036
Notes	N (See Notes)

rPM=1.071

This double is not physical.

15312-1852 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			15 31 12 -18 52 06	HO 393 AB	2015	10	290	6.7	10.89	14.80	3.91		<===
Show	HD 138188	159309	15 31 12 -18 52 06	HO 393 AC	2015	8	313	167.9	10.89	7.69	3.20

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Libra

Tycho2

6192-00370-1

Gaia DR2

6255029669398377600

WDS 15312-1852 HO 393 AB : NOTES

discov_num	notes	refcode
HO 393	Burnham connects A with BD+18@4083.

REFERENCES

refcode	metd	author	reference
Ho_1883	Ma j	Hough, G.W.	1883MNRAS..43..371H
Ho_1883		MNRAS 43, 371, 1883 (data also in Ho_1890)	1890AN....125....1H
Ho_1884	Ma j	Hough, G.W.	1884MNRAS..44..365H
Ho_1884		MNRAS 44, 365, 1884 (data also in Ho_1890)	1890AN....125....1H
Ho_1885	Ma j	Hough, G.W.	1885MNRAS..45..417H
Ho_1885		MNRAS 45, 417, 1885 (data also in Ho_1890)	1890AN....125....1H
Ho_1886	Ma j	Hough, G.W.	1886MNRAS..46..393H
Ho_1886		MNRAS 46, 393, 1886 (data also in Ho_1890)	1890AN....125....1H
Ho_1887	Ma j	Hough, G.W.	1887AN....116..273H
Ho_1887		AN 116, 273, 1887
Ho_1890	Ma j	Hough, G.W.	1890AN....125....1H
Ho_1890		AN 125, 1, 1890
Ho_1890b	Ma j	Hough, G.W.	1890AJ......9..177H
Ho_1890b		AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b)	1890AN....125....1H
Ho_1894a	Ma -	Hough, G.W.	1894MNRAS..54..251H
Ho_1894a		MNRAS 54, 251, 1894
Ho_1894b	Ma j	Hough, G.W. (HO 304 - 490)	1894AN....135..281H
Ho_1894b		AN 135, 281, 1894
Ho_1894c	Ma -	Hough, G.W. (measure by Dembowski, H.)	1894AN....135..281H
Ho_1894c		AN 135, 281, 1894
Ho_1899a	Ma j	Hough, G.W.	1899AN....149..65H
Ho_1899a		AN 149, 65, 1899
Ho_1899b	Ma -	Hough, G.W. (measure by Burnham, S.W.)	1899AN....149..65H
Ho_1899b		AN 149, 65, 1899
Ho_1907	Ma -	Hough, G.W.	1907PFAO....3c...1D
Ho_1907		Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A	Ma -	Hough, G.W.	1932QB821.A43......
Ho_1932A		cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15312-1852	HO 393	AB	1998	7	289	6.6	10.89	14.80		N D	153111.62-185205.9
15312-1852	HO 393	AB	1999	8	289	6.6	10.89	14.80		N D	153111.62-185205.9
15312-1852	HO 393	AB	2010	10	290	6.7	10.89	14.80		N	153111.62-185205.9
15312-1852	HO 393	AB	2015	10	290	6.7	10.89	14.80		N	153111.62-185205.9

If you need more information about this double, apply for a data request form to the WDS.

WDS 15312-1852 HO 393 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15312-1852 HO 393 AB : MEASURES

No records found.

WDS 15312-1852 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 15312-1852 : ALADIN DSS IMAGE @ 15^h 31^m 11.62^s -18° 52' 05.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15312-1852 HO 393 AB : 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		15312-1852	HO 393	AB	290	6.7
Show		15312-1852	HO 393	AC	313	167.9
Show		15287-1843	HU 650		338	1.0	37
Show		15328-1817	GWP2530		285	17.1	43
Show		15275-1833	ARA 429		347	9.8	57
Show		15328-1756	HJ 1273		328	14.5	61
Show		15348-1820	ARA 239		132	6.3	61
Show		15287-1954	B 1783	BC	88	2.1	71
Show		15287-1954	HJ 4775	AB	7	11.5	71
Show		15258-1841	ARA 428		151	6.6	78
Show		15317-2010	S 672		280	11.2	79
Show		15324-2011	B 2358		206	0.4	81
Show		15360-1806	ARA 240		230	7.7	87
Show		15296-1726	UC 3014		26	46.0	89
Show		15250-1837	HJ 1271		102	7.7	90
Show		15372-1820	BRT1493		288	4.7	92
Show		15365-1741	ARA 241		52	3.8	109
Show		15234-1842	RST2953		257	1.5	112
Show		15389-1918	HDS2209		109	0.4	113
Show		15350-1708	HDS2188		323	0.1	118
Show		15364-1719	LDS4568		132	5.1	119
Show		15339-1700	HDS2185		199	0.5	119
Show		15384-1955	CHR 48		166	0.3	120
Show		15367-2030	KPP1748		318	13.5	125
Show		15266-1706	HU 309		45	1.6	126
Show		15232-1947	B 1782		68	1.5	126
Show		15271-2044	DON 734		101	5.1	127
Show		15383-1734	HDS2206	AB		3.8	128
Show		15383-1734	TOK 168	AC	316	13.9	128
Show		15383-2021	B 2786	BC	101	3.5	133
Show		15405-1842	HDS2211	AB	26	0.6	133
Show		15405-1842	CVN 53	AC	103	8.9	133
Show		15405-1842	CVN 53	AD	224	11.6	133
Show		15404-1919	ARA 702		97	7.9	134
Show		15405-1901	RST2975		75	2.0	134
Show		15383-2021	B 2786	AB	336	139.7	135
Show		15399-1946	BU 122	AB	228	1.7	135
Show		15243-1719	RST3917		176	1.3	136
Show		15283-1643	OCC 953		-1	0.1	136
Show		15362-1656	ARN 106		293	44.6	137
Show		15218-1822	ARA 237		295	14.1	137
Show		15370-1659	HWE 35	AB	331	7.3	141
Show		15370-1659	HWE 35	AC	236	43.5	141
Show		15404-1749	TDS9587		279	0.4	145
Show		15245-1700	BHA 57		4	32.7	148
Show		15388-2041	ARA1110		37	15.2	153
Show		15282-1625	WSP 109	AB	144	5.7	154
Show		15282-1625	WSP 109	AC	343	13.3	154
Show		15282-1625	WSP 109	AD	258	16.3	154
Show		15282-1625	WSP 109	AE	356	18.7	154
Show		15282-1625	WSP 109	AF	296	19.0	154

WDS 15312-1852 : COMPONENTS

	A	B
B	pa=290.5° sep=6.37"
C	pa=314.4° sep=163.10"	pa=315.3° sep=157.29"

15312-1852 A

Coord arcsec 2000	153111.62-185205.9		Mag	10.89		PmRA	7.00		PmDE	-8.0
Tycho2	6192-00370-1

Tycho2

Tycho2	6192-00370-1	Pflag		RAmdeg	232.79843845	DEmdeg	-18.86833123
PmRA	-1.7	PmDE	-6.6	E RAmdeg	35	E DEmdeg	55
E pmRA	2.7	E pmDE	2.9	EpRAm	1989.40	EpDEm	1986.17
Num	3	Q RAmdeg	1.6	Q DEmdeg	0.7	Q pmRA	1.6
Q pmDE	0.7	BTmag	11.271	E BTmag	0.076	VTmag	10.889
E VTmag	0.080	Prox	999	TYC	T	HIP
CCDM		RAdeg	232.79844250	DEdeg	-18.86831528	EpRA 1990	1.76
EpDE 1990	1.38	E RAdeg	36.0	E DEdeg	57.4	Posflg
Corr	-0.1

15312-1852 B

Coord arcsec 2000	153111.20-185203.7		Mag	14.8		PmRA	-123.00		PmDE	36.0
Calc delta mag	3.91		Calc coord	yes

15312-1852 C

Coord arcsec 2000	153103.41-185011.8	Mag	7.69	PmRA	-6.00	PmDE	-21.0
SAO	159309	HIP	75985	Tycho2	6192-00762-1	HD	138188
GC	20845	BD	BD-18 4083	Calc delta mag	3.2	Calc coord	yes

Tycho2

Tycho2	6192-00762-1	Pflag		RAmdeg	232.76232894	DEmdeg	-18.83656153
PmRA	-6.4	PmDE	-23.3	E RAmdeg	4	E DEmdeg	6
E pmRA	1.2	E pmDE	1.2	EpRAm	1991.44	EpDEm	1990.79
Num	12	Q RAmdeg	1.0	Q DEmdeg	0.7	Q pmRA	1.0
Q pmDE	0.7	BTmag	7.979	E BTmag	0.016	VTmag	7.691
E VTmag	0.011	Prox	999	TYC	T	HIP	75985
CCDM		RAdeg	232.76234472	DEdeg	-18.83650583	EpRA 1990	1.72
EpDE 1990	1.41	E RAdeg	4.4	E DEdeg	5.7	Posflg
Corr	0.0

SAO

SAO	159309	DelFlag		RA1950		PmRA1950	-0.001
DE1950		PmDE1950	-0.03	Vmag	8	SpType	A2
Double code		Source	70	CatNum	20845	DM	BD-18 4083
DMcomp		BDsup		HD	138188	M HD	0
GC	20845	RA1950rad	4.04997913	DE1950rad	-0.32579087	PmRA2000	-0.0009
PmDE2000	-0.026

Hipparcos

Catalog	H	HIP	75985	Proxy		RAhms	15 31 02.96
DEdms	-18 50 11.4	Vmag	7.65	VarFlag		R Vmag	H
RAdeg	232.762	DEdeg	-18.8365	AstroRef		Plx	5.82
CCDM	15311-1851	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	138188	BD	BD-18 4083
CD		CP		Dm number	-18 4083	VIred	0.32
SpType	A2III/IV	R SpType		Coord arcsec 2000	153102.96-185011.4

Hipparcos 2

HIP	75985	Sn	5	So	0	Nc	1
RArad	4.0624693986	DErad	-0.3287590867	Plx	5.7	PmRA	-6.11
PmDE	-24.39	E RArad	0.75	E DErad	0.33	E Plx	0.74
E pmRA	0.81	E pmDE	0.74	Hpmag	7.7256	E Hpmag	0.0009
SHp	0.01	VA	0	BV	0.285	E BV	0.013
VI	0.32