17291+1727 DAL 14 AB (HD 158522)

17^h 29^m 06.20^s +17° 27' 18.3" P.A. 88.00 sep 2.4 mag 8.75,9.11 Sp A0

Coord 2000	17291+1727	Discov num	DAL 14	Comp	AB	Coord arcsec 2000	17 29 06.20 +17 27 18.3
Date first	1999	Date last	1999	Obs	1
Pa first	88	Pa last	87.9	P.A. Now (θ)	87.9°
Sep first	2.4	Sep last	2.41	Sep. Now (ρ)	2.41"
Mag pri	8.75	Mag sec	9.11	delta mag (ΔM)	0.36	Spectral class	A0 (white)
Pri motion ra	-011	Sec motion ra
Pri motion dec	+008	Sec motion dec
Notes	X (Dubious double)

Nature of this double is uncertain.

17291+1727 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 158522	102851	17 29 06 +17 27 18	DAL 14 AB	1999	1	88	2.4	8.75	9.11	0.36		<===
Show		102851	17 29 06 +17 27 18	DAL 14 AC	2017	9	184	18.2	8.75	11.71	2.96

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 158522		Constellation	Hercules		SAO	102851		Tycho2	1542-02249-1
Gaia DR2	4550181644370581632		HD	158522

WDS 17291+1727 DAL 14 AB (HD 158522) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Dal1998	Ma -	Daley, J.A.	1998DSO.....4....4D
Dal1998		Double Star Observer 4, #4, 1998
Dal2000	Ma u	Daley, J.A.	2000DSO.....6....1D
Dal2000		Double Star Observer 6, #1, 2000
Dal2001a	Mb -	Daley, J.A.	2001DSO.....7....1D
Dal2001a		Double Star Observer 7, #1, 2001
Dal2001b	Ma u	Daley, J.A.	2001DSO.....7....3D
Dal2001b		Double Star Observer 7, #3, 2001
Dal2002a	Ma u	Daley, J.A.	2002DSO.....8....1D
Dal2002a	+C	Double Star Observer 8, #1, 2002
Dal2002b	C u	Daley, J.A.	.
Dal2002b		Pub. Ludwig Schupmann Obs, #1, 2002
Dal2002c	-	Daley, J.A.	2002DSO.....8....4D
Dal2002c		Double Star Observer 8, #4, 2002
Dal2002d	Mb u	Daley, J.A.	2002DSO.....8....6D
Dal2002d		Double Star Observer 8, #6, 2002
Dal2003a	C u	Daley, J.A.	.
Dal2003a		Pub. Ludwig Schupmann Obs, #2, 2003
Dal2004a	C u	Daley, J.A.	.
Dal2004a		Pub. Ludwig Schupmann Obs, #3, 2004
Dal2005a	C u	Daley, J.A.	2005JDSO....1...74D
Dal2005a		Pub. Ludwig Schupmann Obs, #4, 2005 (also JDSO 1, 74, 2005)
Dal2006a	C u	Daley, J.A.	2006JDSO....2...44D
Dal2006a		JDSO 2, 44, 2006
Dal2006b	-	Daley, J.A.	2006JDSO....2...51D
Dal2006b		JDSO 2, 51, 2006
Dal2007	C u	Daley, J.	2007JDSO....3...68D
Dal2007		JDSO 3, 68, 2007
Dal2008	C u	Daley, J.	2008JDSO....4...34D
Dal2008		JDSO 4, 34, 2008
Dal2008b	C -	Daley, J.	...................
Dal2008b		private communication, 2008
Dal2008c	C u	Daley, J.	2008JDSO....4..175D
Dal2008c		JDSO 4, 175, 2008
Dal2009	C u	Daley, J.	2009JDSO....5..149D
Dal2009		JDSO 5, 149, 2009
Dal2011	C u	Daley, J.	2011JDSO....7..104D
Dal2011		JDSO 7, 104, 2011
Dal2012	C u	Daley, J.	2012JDSO....8..303D
Dal2012		JDSO 8, 303, 2012
Dal2014	C u	Daley, J.	2014JDSO...10..136D
Dal2014		JDSO 10, 136, 2014
Dal2014b	-	Daley, J.	...................
Dal2014b		private communication, 2014
Dal2016	C -	Daley, J.	...................
Dal2016		private communication, 2016
Dal2016b	C u	Daley, J.	2016JDSO...12..468D
Dal2016b		JDSO 12, 468, 2016
Dal2018	C u	Daley, J.	2018JDSO...14..543D
Dal2018		private communication, 2017
Dal2018		JDSO 14, 543, 2018

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17291+1727	DAL 14	AB	1999	1	88	2.4	8.75	9.11		N	172906.20+172718.3

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

WDS 17291+1727 DAL 14 AB (HD 158522) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17291+1727 DAL 14 AB (HD 158522) : MEASURES

No records found.

WDS 17291+1727 (HD 158522) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 17291+1727 (HD 158522) : ALADIN DSS IMAGE @ 17^h 29^m 06.20^s +17° 27' 18.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17291+1727 DAL 14 AB (HD 158522) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		17291+1727	DAL 14	AB	88	2.4
Show		17291+1727	DAL 14	AC	184	18.2
Show		17285+1755	TDT 370		119	0.5	30
Show		17316+1654	BPM 684		242	90.7	49
Show		17297+1815	BRT2433		308	4.5	49
Show		17319+1649	TOK 314		323	174.7	56
Show		17259+1655	KUI 81	AB	216	8.5	57
Show		17259+1655	KUI 81	AC	220	26.8	57
Show		17297+1629	BPM 683		323	101.8	59
Show		17275+1627	A 2184	AB	41	1.6	64
Show		17275+1627	LBU 5	AC	259	49.3	64
Show		17249+1806	BPMA 50		145	151.2	71
Show		17339+1747	COU 627		145	2.2	72
Show		17336+1801	BPM 688		169	99.6	73
Show		17339+1655	LDT 22		63	0.4	76
Show		17319+1613	LDS 996		283	178.8	84
Show		17235+1654	A 2183	AB	137	1.2	87
Show		17299+1558	HDS2471	Aa,Ab	301	0.4	91
Show		17299+1558	STT 330	AB	57	14.5	91
Show		17348+1812	TDT 422		139	0.5	93
Show		17336+1618	LDS4752		145	3.0	95
Show		17298+1902	NSN 691		181	37.8	95
Show		17248+1843	UC 3337		192	31.7	98
Show		17313+1901	COU 499		304	0.1	99
Show		17267+1904	GRV 954		261	58.1	103
Show		17292+1543	HEI 169		224	0.7	105
Show		17304+1913	RAO 373		225	2.5	107
Show		17229+1628	J 1248	AB	142	0.1	108
Show		17229+1628	STF2157	AB,C	208	3.4	108
Show		17332+1900	GRV 960		61	29.4	110
Show		17335+1553	BPM 687		127	64.0	114
Show		17376+1747	BPM 690		210	65.8	123
Show		17372+1809	TDT 436		184	0.1	124
Show		17353+1853	KPP3319		343	3.2	124
Show		17246+1536	STF2160	AB	66	3.9	129
Show		17202+1750	UC 3328		240	64.2	129
Show		17290+1517	UC 3351		212	37.7	131
Show		17274+1941	GRV 955		274	15.3	136
Show		17296+1945	HO 632		197	6.7	138
Show		17199+1807	COU2625		9	2.3	138
Show		17375+1616	HEI 249		233	1.6	139
Show		17309+1512	HDS2473		144	0.5	139
Show		17190+1739	LDS4738	AB	212	16.2	145
Show		17190+1739	UC 3323	AC	168	102.2	145
Show		17388+1643	BPM 692		111	112.7	146
Show		17273+1504	BPM 681		48	94.5	146
Show		17257+1510	UC 3339		102	43.3	146
Show		17387+1834	OSO 82	CD	202	9.9	147
Show		17387+1834	BUP 177	BC	270	104.9	148
Show		17343+1519	GLP 7		244	9.2	149
Show		17387+1834	BUP 177	AB	266	272.2	153

WDS 17291+1727 : COMPONENTS

	A	B
B	pa=87.8° sep=2.30"
C	pa=183.4° sep=18.15"	pa=190.5° sep=18.52"

17291+1727 A

Name	HD 158522	Coord arcsec 2000	172906.20+172718.3	Mag	8.75	Spectral class	A0 (white)
PmRA	-11.00	PmDE	8.0	SAO	102851	Tycho2	1542-02249-1
HD	158522	DM	BD+17 3252

Tycho2

Tycho2	1542-02249-1	Pflag		RAmdeg	262.27588653	DEmdeg	17.45510466
PmRA	-10.6	PmDE	5.9	E RAmdeg	8	E DEmdeg	6
E pmRA	1.2	E pmDE	1.1	EpRAm	1990.90	EpDEm	1991.41
Num	10	Q RAmdeg	0.6	Q DEmdeg	2.0	Q pmRA	0.6
Q pmDE	2.0	BTmag	8.942	E BTmag	0.017	VTmag	8.767
E VTmag	0.014	Prox	999	TYC	T	HIP
CCDM		RAdeg	262.27591250	DEdeg	17.45509139	EpRA 1990	1.58
EpDE 1990	1.80	E RAdeg	7.8	E DEdeg	6.1	Posflg
Corr	-0.1

SAO

SAO	102851	DelFlag		RA1950		PmRA1950	-0.0006
DE1950		PmDE1950	0.016	Vmag	8.7	SpType	A0
Double code		Source	28	CatNum	6290	DM	BD+17 3252
DMcomp		BDsup		HD	158522	M HD	0
GC		RA1950rad	4.56791232	DE1950rad	0.30532391	PmRA2000	-0.0005
PmDE2000	0.018

17291+1727 B

Coord arcsec 2000

172906.36+172718.4

Mag

9.11

Calc delta mag

0.36

Calc coord

yes

17291+1727 C

Coord arcsec 2000	172906.12+172700.2		Mag	11.71		PmRA	-10.00		PmDE	-19.0
Calc delta mag	2.96		Calc coord	yes