02518+5819 BLL 8 AB (HD 17581)

02^h 51^m 45.88^s +58° 18' 51.4" P.A. 147.00 sep 195.6 mag 6.46,9.93 Sp A1m dist. 90.01 pc (293.61 l.y.)

Coord 2000	02518+5819	Discov num	BLL 8	Comp	AB	Coord arcsec 2000	02 51 45.88 +58 18 51.4
Date first	1879	Date last	2015	Obs	16
Pa first	147	Pa last	146.8	P.A. Now (θ)	146.8°
Sep first	192.7	Sep last	195.614	Sep. Now (ρ)	195.614"
Mag pri	6.46	Mag sec	9.93	delta mag (ΔM)	3.47	Spectral class	A1m (white)
Pri motion ra	-033	Sec motion ra	+006
Pri motion dec	-002	Sec motion dec	-004
Notes	N (See Notes)

rPM=1.181

This double is not physical.

02518+5819 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 17581	23662	02 51 46 +58 18 51	BLL 8 AB	2015	16	147	195.6	6.46	9.93	3.47		<===
Show		23662	02 51 46 +58 18 51	ARN 56 AC	2015	13	188	350.3	6.46	9.48	3.02

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 17581	Constellation	Cassiopeia	SAO	23662	HIP	13347
Tycho2	3712-01696-1	Gaia DR2	461022721567517056	HD	17581	HR	839
GC	3413	BD	BD+57 651	Distance	90.01	Distance ly	293.61

WDS 02518+5819 BLL 8 AB (HD 17581) : NOTES

discov_num	notes	refcode
BLL 8	A is a spectroscopic binary. B is BD+57@652.

REFERENCES

refcode	metd	author	reference
Arn2001	Mg j	Arnold, D.	2001DSO.....7....4A
Arn2001		Double Star Observer 7, #4, 2001
Arn2002a	Mg j	Arnold, D.	2002DSO.....8....1A
Arn2002a		Double Star Observer 8, #1, 2002
Arn2002b	Mg -	Arnold, D.	2002DSO.....8....3A
Arn2002b		Double Star Observer 8, #3, 2002
Arn2002c	Mg j	Arnold, D.	2002DSO.....8....4A
Arn2002c		Double Star Observer 8, #4, 2002
Arn2002d	Mg j	Arnold, D.	2002DSO.....8....5A
Arn2002d		Double Star Observer 8, #5, 2002
Arn2003a	Mg j	Arnold, D.	2003DSO.....9....1A
Arn2003a		Double Star Observer 9, #1, 2003
Arn2003b	Mg j	Arnold, D.	2003DSO.....9....3A
Arn2003b		Double Star Observer 9, #3, 2003
Arn2003c	Mg j	Arnold, D.	2003DSO.....9....4A
Arn2003c		Double Star Observer 9, #4, 2003
Arn2003d	Mg j	Arnold, D.	2003DSO.....9....5A
Arn2003d		Double Star Observer 9, #5, 2003
Arn2003e	Mg j	Arnold, D.	2003DSO.....9....6A
Arn2003e		Double Star Observer 9, #6, 2003
Arn2004a	Mg j	Arnold, D.	2004DSO....10....1A
Arn2004a		Double Star Observer 10, #1, 2004
Arn2004b	Mg j	Arnold, D.	2004DSO....10....2A
Arn2004b		Double Star Observer 10, #2, 2004
Arn2004c	Mg j	Arnold, D.	2004DSO....10....3A
Arn2004c		Double Star Observer 10, #3, 2004
Arn2004d	Mg j	Arnold, D.	2004DSO....10....4A
Arn2004d		Double Star Observer 10, #4, 2004
Arn2004e	Mg j	Arnold, D.	2004DSO....10....5A
Arn2004e		Double Star Observer 10, #5, 2004
Arn2004f	Mg j	Arnold, D.	2004DSO....10....6A
Arn2004f		Double Star Observer 10, #6, 2004
Arn2005a	Mg j	Arnold, D.	2005DSO....11....1A
Arn2005a		Double Star Observer 11, #1, 2005
Arn2005b	Mg j	Arnold, D.	2005DSO....11....2A
Arn2005b		Double Star Observer 11, #2, 2005
Arn2005c	Mg j	Arnold, D.	2005DSO....11....3A
Arn2005c		Double Star Observer 11, #3, 2005
Arn2005d	Mg j	Arnold, D.	2005DSO....11....4A
Arn2005d		Double Star Observer 11, #4, 2005
Arn2005e	Mg j	Arnold, D.	2005DSO....11....5A
Arn2005e		Double Star Observer 11, #5, 2005
Arn2005f	Mg j	Arnold, D.	2005DSO....11....6A
Arn2005f		Double Star Observer 11, #6, 2005
Arn2006a	Mg j	Arnold, D.	2006JDSO....2....6A
Arn2006a	+C	JDSO 2, 6, 2006
Arn2006b	Mg j	Arnold, D.	2006JDSO....2...13A
Arn2006b		JDSO 2, 13, 2006
Arn2006c	Mg j	Arnold, D.	2006JDSO....2...54A
Arn2006c		JDSO 2, 54, 2006
Arn2006d	Mg j	Arnold, D.	2006JDSO....2...61A
Arn2006d		JDSO 2, 61, 2006
Arn2006e	Mg j	Arnold, D.	2006JDSO....2...79A
Arn2006e		JDSO 2, 79, 2006
Arn2006f	Mg j	Arnold, D.	2006JDSO....2...87A
Arn2006f		JDSO 2, 87, 2006
Arn2006g	Mg j	Arnold, D.	2006JDSO....2..163A
Arn2006g	+C	JDSO 2, 163, 2006
Arn2007a	Mg j	Arnold, D.	2007JDSO....3...27A
Arn2007a		JDSO 3, 27, 2007
Arn2007b	Mg j	Arnold, D.	2007JDSO....3...55A
Arn2007b		JDSO 3, 55, 2007
Arn2007c	Mg j	Arnold, D.	2007JDSO....3..119A
Arn2007c		JDSO 3, 119, 2007
Arn2007d	Mg j	Arnold, D.	2007JDSO....3..139A
Arn2007d		JDSO 3, 139, 2007
Arn2008a	Mg j	Arnold, D.	2008JDSO....4....2A
Arn2008a		JDSO 4, 2, 2008
Arn2008b	Mg j	Arnold, D.	2008JDSO....4...66A
Arn2008b		JDSO 4, 66, 2008
Arn2008c	Mg j	Arnold, D.	2008JDSO....4...91A
Arn2008c		JDSO 4, 91, 2008
Arn2008d	Mg j	Arnold, D.	2008JDSO....4..136A
Arn2008d		JDSO 4, 136, 2008
Arn2009a	Mg j	Arnold, D.	2009JDSO....5....2A
Arn2009a		JDSO 5, 2, 2009
Arn2009b	Mg j	Arnold, D.	2009JDSO....5...94A
Arn2009b		JDSO 5, 94, 2009
Arn2009c	Mg j	Arnold, D.	2009JDSO....5..129A
Arn2009c		JDSO 5, 129, 2009
Arn2009d	Mg j	Arnold, D.	2009JDSO....5..182A
Arn2009d		JDSO 5, 182, 2009
Arn2010a	Mg j	Arnold, D.	2010JDSO....6....5A
Arn2010a		JDSO 6, 5, 2010
Arn2010b	Mg j	Arnold, D.	2010JDSO....6..141A
Arn2010b		JDSO 6, 141, 2010
Arn2010c	Mg j	Arnold, D.	2010JDSO....6..170A
Arn2010c		JDSO 6, 170, 2010
Arn2010d	Mg j	Arnold, D.	2010JDSO....6..301A
Arn2010d		JDSO 6, 301, 2010
Arn2012a	Mg j	Arnold, D.	2012JDSO....8...32A
Arn2012a		JDSO 8, 32, 2012
Arn2012b	Mg -	Arnold, D.	2012JDSO....8..176A
Arn2012b		JDSO 8, 176, 2012
Arn2012c	Mg j	Arnold, D.	2012JDSO....8..226A
Arn2012c		JDSO 8, 226, 2012
Arn2013a	Mg j	Arnold, D.	2013JDSO....9...10A
Arn2013a		JDSO 9, 10, 2013
Arn2013b	M j	Arnold, D.	2013JDSO....9..100A
Arn2013b		JDSO 9, 100, 2013
Bll1872	orb -	Ball, R.S.	.
Bll1872		Proc. Royal Irish Acad., June 1872
Bll1884	Ma j	Ball, R.S.	1884DunOP...5....1B
Bll1884		Pub. Dunsink Obs. 5, 1, 1884
Bll1913A	Ma -	Ball, R.S.	1913QB811.B8.......
Bll1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Bll1932A	-	Ball, R.S.	1932QB821.A43......
Bll1932A		cited in ADS (Aitken Double Star Cat.), 1932

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02518+5819	BLL 8	AB	2002	12	148	195.5	6.46	9.93	A1m	N D	025145.87+581851.4
02518+5819	BLL 8	AB	2011	13	147	195.5	6.46	9.93	A1m	N D	025145.87+581851.4
02518+5819	BLL 8	AB	2015	16	147	195.6	6.46	9.93	A1m	N	025145.88+581851.4

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

WDS 02518+5819 BLL 8 AB (HD 17581) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 02518+5819 BLL 8 AB (HD 17581) : MEASURES

No records found.

WDS 02518+5819 (HD 17581) : 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 02518+5819 (HD 17581) : ALADIN DSS IMAGE @ 02^h 51^m 45.88^s +58° 18' 51.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 02518+5819 BLL 8 AB (HD 17581) : 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		02518+5819	BLL 8	AB	147	195.6
Show		02518+5819	ARN 56	AC	188	350.3
Show		02535+5837	HDS 369		190	0.4	23
Show		02495+5753	CRB 165		334	64.2	32
Show		02558+5836	TDS2391		200	0.8	37
Show		02569+5835	A 974		183	2.5	44
Show		02467+5842	ES 1774		71	3.9	47
Show		02521+5732	ES 1814		306	7.5	48
Show		02563+5852	STF 321		25	18.5	49
Show		02469+5744	HDS 360		15	0.3	53
Show		02490+5908	STI1941		358	3.5	54
Show		02479+5903	STI1939		74	8.7	54
Show		02491+5910	STI1942		183	5.0	56
Show		02456+5751	TDS2353	AB	178	1.8	56
Show		02501+5722	STI1944		191	3.9	59
Show		02448+5754	STI1934		273	10.2	61
Show		02589+5844	TOI1565		208	0.2	62
Show		02572+5734	STI1951		304	9.9	62
Show		02563+5911	STI1950	AB	255	9.1	63
Show		02563+5911	STI1950	AC	174	12.1	63
Show		02517+5921	GIC 35		295	5.8	64
Show		02598+5827	STI1954		73	11.8	64
Show		02454+5738	A 971		41	0.1	65
Show		02579+5734	STI1952		20	5.8	67
Show		03005+5829	ES 1775		288	2.0	70
Show		02430+5812	RAO 44		211	21.3	70
Show		02429+5814	MLB 52		10	4.5	71
Show		02447+5735	TDS 92		115	1.3	72
Show		02455+5727	SCA 4		224	25.0	72
Show		02440+5903	STI1930		271	10.6	75
Show		02432+5853	A 970		102	5.5	76
Show		02518+5703	SCA 6		261	32.1	76
Show		02495+5705	MCA 9		99	0.2	76
Show		02533+5709	STI1948		138	18.7	77
Show		02507+5700	SCA 5		37	16.0	80
Show		02429+5904	STI1926		344	14.1	83
Show		03022+5802	TDS2422		272	0.5	85
Show		02578+5929	STI 412	AB	293	14.5	85
Show		02578+5929	MRI 56	AC	86	25.5	85
Show		03018+5851	MLB 53		105	6.3	85
Show		02456+5709	STI1937		30	5.9	85
Show		03012+5902	STF 329		274	16.1	86
Show		02586+5928	STI 416		86	3.5	87
Show		02451+5708	STI1936		219	10.0	89
Show		03012+5724	KPP1139		153	8.9	94
Show		02461+5657	IPH 2		342	34.6	95
Show		02552+5950	MLR 520		62	0.1	95
Show		02407+5741	MLB 51		189	4.9	95
Show		02507+5645	STI1946		102	11.0	96
Show		02443+5704	STF 293	AB	102	13.6	97
Show		02443+5704	STF 293	AC	335	79.6	97

WDS 02518+5819 : COMPONENTS

	A	B
B	pa=161.0° sep=173.09"
C	pa=184.4° sep=347.69"	pa=204.4° sep=200.92"

02518+5819 A

Name	HD 17581	Coord arcsec 2000	025145.88+581851.4	Mag	6.46	Spectral class	A1m (white)
PmRA	-33.00	PmDE	-2.0	SAO	23662	HIP	13347
Tycho2	3712-01696-1	HD	17581	HR	839	GC	3413
BD	BD+57 651

Tycho2

Tycho2	3712-01696-1	Pflag		RAmdeg	42.94116131	DEmdeg	58.31429139
PmRA	-33.4	PmDE	-2.4	E RAmdeg	3	E DEmdeg	4
E pmRA	1.0	E pmDE	1.1	EpRAm	1991.56	EpDEm	1991.36
Num	12	Q RAmdeg	0.7	Q DEmdeg	1.0	Q pmRA	0.8
Q pmDE	1.0	BTmag	6.589	E BTmag	0.014	VTmag	6.459
E VTmag	0.010	Prox	820	TYC	T	HIP	13347
CCDM		RAdeg	42.94130750	DEdeg	58.31429694	EpRA 1990	1.73
EpDE 1990	1.60	E RAdeg	3.4	E DEdeg	3.7	Posflg
Corr	0.1

SAO

SAO	23662	DelFlag		RA1950		PmRA1950	-0.0082
DE1950		PmDE1950	0.019	Vmag	6.3	SpType	A0
Double code		Source	70	CatNum	3413	DM	BD+57 651
DMcomp		BDsup		HD	17581	M HD	0
GC	3413	RA1950rad	0.73299354	DE1950rad	1.01419771	PmRA2000	-0.0084
PmDE2000	0.015

Hipparcos

Catalog	H	HIP	13347	Proxy		RAhms	02 51 45.92
DEdms	+58 18 51.5	Vmag	6.46	VarFlag		R Vmag	H
RAdeg	42.9413	DEdeg	58.3143	AstroRef		Plx	11.44
CCDM	02518+5818	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	17581	BD	BD+57 651
CD		CP		Dm number	+57 651	VIred	0.09
SpType	A1m	R SpType		Coord arcsec 2000	025145.92+581851.5

Hipparcos 2

HIP	13347	Sn	5	So	0	Nc	1
RArad	0.7494673716	DErad	1.0177764959	Plx	11.11	PmRA	-32.53
PmDE	-1.71	E RArad	0.36	E DErad	0.28	E Plx	0.55
E pmRA	0.59	E pmDE	0.52	Hpmag	6.496	E Hpmag	0.0011
SHp	0.009	VA	0	BV	0.104	E BV	0.006
VI	0.09

02518+5819 B

Coord arcsec 2000	025153.02+581607.7		Mag	9.93		PmRA	6.00		PmDE	-4.0
Calc delta mag	3.47		Calc coord	yes

02518+5819 C

Coord arcsec 2000	025142.51+581304.7		Mag	9.48		PmRA	-24.00		PmDE	3.0
Calc delta mag	3.02		Calc coord	yes