18160-5333 DAW 221 BC

18^h 15^m 56.76^s -53° 33' 10.6" P.A. 224.00 sep 8.4 mag 11.60,13.10

Coord 2000	18160-5333	Discov num	DAW 221	Comp	BC	Coord arcsec 2000	18 15 56.76 -53 33 10.6
Date first	1916	Date last	2015	Obs	6
Pa first	219	Pa last	223.8	P.A. Now (θ)	223.8°
Sep first	8.0	Sep last	8.418	Sep. Now (ρ)	8.418"
Mag pri	11.60	Mag sec	13.10	delta mag (ΔM)	1.5	Spectral class
Pri motion ra	+003	Sec motion ra	-051
Pri motion dec	+000	Sec motion dec	-093
Notes	N (See Notes)

rPM=1.014

This double is not physical.

18160-5333 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 166952	245357	18 15 58 -53 33 10	HJ 9004 AB	2015	8	268	14.3	10.11	11.64	1.53
Show			18 15 57 -53 33 11	DAW 221 BC	2015	6	224	8.4	11.60	13.10	1.50		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Telescopium

Gaia DR2

6653597171276756736

WDS 18160-5333 DAW 221 BC : NOTES

discov_num	notes	refcode
HJ 9004	Previously known as HJ 5453a.

REFERENCES

refcode	metd	author	reference
Daw1918a	Ma -	Dawson, B.H.	.
Daw1918a		Pub. La Plata Obs. 4, Pt.1, 1918
Daw1918b	Ma -	Dawson, B.H. (measure by Chaves, A.J.)	.
Daw1918b		Pub. La Plata Obs. 4, Pt.1, 1918
Daw1919	orb -	Dawson, B.H.	1919AJ.....32..109D
Daw1919		AJ 32, 109, 1919
Daw1920	orb -	Dawson, B.H.	1920AJ.....32..141D
Daw1920		AJ 32, 141, 1920
Daw1920b	orb -	Dawson, B.H.	1920AJ.....32..161D
Daw1920b		AJ 32, 161, 1920
Daw1922	Ma -	Dawson, B.H.	.
Daw1922		Pub. La Plata Obs. 4, Pt.2, 1922
Daw1922b	orb -	Dawson, B.H.	1922AJ.....34...17D
Daw1922b		AJ 34, 17, 1922
Daw1924a	Ma -	Dawson, B.H.	1924AJ.....35..147D
Daw1924a		AJ 35, 147, 1924 (DAW 112 - 158; data also in Daw1937)
Daw1924b	orb -	Dawson, B.H.	1924AJ.....36...23D
Daw1924b		AJ 36, 23, 1924
Daw1926	orb -	Dawson, B.H.	1926AJ.....36..181D
Daw1926		AJ 36, 181, 1926
Daw1927A	Ma -	Dawson, B.H.	1927sdsc.book......
Daw1927A		cited in SDS (Southern Double Star Cat.), 1927
Daw1933	orb -	Dawson, B.H.	1933AJ.....43...15D
Daw1933		AJ 43, 15, 1933
Daw1937	Ma -	Dawson, B.H.	.
Daw1937		Pub. La Plata Obs. 6, 85, 1937
Daw9999	Ma -	Dawson, B.H.	...................
Daw9999		Unpublished, manuscript or reference not found.
HJ_1826	Mb -	Herschel, J.F.W.	1826MmRAS...2..459H
HJ_1826		MemRAS 2, 459, 1826
HJ_1829a	Mb -	Herschel, J.F.W.	1829MmRAS...3...47H
HJ_1829a		MemRAS 3, 47, 1829
HJ_1829b	Mb -	Herschel, J.F.W.	1829MmRAS...3..177H
HJ_1829b		MemRAS 3, 177, 1829
HJ_1831	Ma -	Herschel, J.F.W.	1831MmRAS...4..331H
HJ_1831	+Mb	MemRAS 4, part 2, 331, 1831
HJ_1833a	Ma -	Herschel, J.F.W.	1833MmRAS...5...13H
HJ_1833a	+Mb	MemRAS 5, 13, 1833
HJ_1833b	orb -	Herschel, J.F.W.	1833MmRAS...5..171H
HJ_1833b		MemRAS 5, 171, 1833
HJ_1833c	Mb -	Herschel, J.F.W.	1833MmRAS...6....1H
HJ_1833c		MemRAS 6, 1, 1833
HJ_1833d	orb -	Herschel, J.F.W.	1833MmRAS...6..149H
HJ_1833d		MemRAS 6, 149, 1833
HJ_1835	Ma -	Herschel, J.F.W.	1835MmRAS...8...37H
HJ_1835	+Mb	MemRAS 8, 37, 1835
HJ_1836	Mb -	Herschel, J.F.W.	1836MmRAS...9..193H
HJ_1836		MemRAS 9, 193, 1836
HJ_1847a	Ma j	Herschel, J.F.W.	.
HJ_1847a	+Mb	Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b	Ma j	Herschel, J.F.W.	.
HJ_1847b		Cape Results, London, 1847
HJ_1850	orb -	Herschel, J.F.W.	1850MmRAS..18...47H
HJ_1850		MemRAS 18, 47, 1850
HJ_1870	Mb -	Herschel, J.F.W.	1870MmRAS..38....1H
HJ_1870		MemRAS 38, 1, 1870
HJ_1874A	-	Herschel, J.F.W.	1874MNRAS..35...28B
HJ_1874A		cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A	Ma -	Herschel, J.F.W.	1875AN.....85..323D
HJ_1875A	+Mb	cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A	Ma -	Herschel, J.F.W.	1880Obs.....3..508G
HJ_1880A	+Mb	cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B	Mb -	Herschel, J.F.W.	1880MNRAS..40..497B
HJ_1880B		cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A	Ma j	Herschel, J.F.W.	1897MNRAS..57..541S
HJ_1897A		cited by See (MNRAS 57, 541, 1897)
HJ_1905A	Ma -	Herschel, J.F.W.	1905LicOB...3..147A
HJ_1905A	+Mb	cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A	Ma -	Herschel, J.F.W.	1906MmRAS..56....1L
HJ_1906A	+Mb	cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B	Ma -	Herschel, J.F.W.	1906QB821.B972.....
HJ_1906B	+Mb	cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A	Mb -	Herschel, J.F.W.	1927sdsc.book......
HJ_1927A		cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A	Mb -	Herschel, J.F.W.	1932QB821.A43......
HJ_1932A		cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999	M j	Herschel, J.F.W.	...................
HJ_9999	+Ma	Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18160-5333	DAW 221	BC	2000	2	223	8.4	11.50	13.00		D	181556.76-533310.6
18160-5333	DAW 221	BC	2001	4	223	8.4	11.60	13.10		N D	181556.76-533310.6
18160-5333	DAW 221	BC	2015	6	224	8.4	11.60	13.10		N	181556.76-533310.6

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

WDS 18160-5333 DAW 221 BC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18160-5333 DAW 221 BC : MEASURES

No records found.

WDS 18160-5333 : VIRTUAL EYEPIECE

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

WDS 18160-5333 : ALADIN DSS IMAGE @ 18^h 15^m 56.76^s -53° 33' 10.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18160-5333 DAW 221 BC : 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		18160-5333	DAW 221	BC	224	8.4	1
Show		18160-5333	HJ 9004	AB	268	14.3	1
Show		18171-5336	RST3166		180	0.3	11
Show		18140-5342	BRT2099		49	4.2	20
Show		18148-5350	BRT2100		207	9.0	21
Show		18150-5303	UC 3533	BC	228	40.4	32
Show		18150-5303	UC 3533	AB	211	68.9	32
Show		18123-5330	UC 3531		89	69.7	33
Show		18117-5342	FIN 262	Aa,Ab	288	0.3	40
Show		18117-5342	UC 3527	AB	262	26.1	40
Show		18148-5255	UC 3532		275	86.0	40
Show		18205-5344	FIN 264		78	0.1	42
Show		18148-5249	I 630		16	0.9	46
Show		18118-5407	HRG 127		175	5.3	51
Show		18138-5422	HJ 5027		163	23.2	53
Show		18099-5301	FIN 53	AB	16	6.3	63
Show		18099-5301	FIN 53	AC	284	6.6	63
Show		18099-5301	FIN 53	AD	95	12.2	63
Show		18103-5414	B 377		359	2.9	65
Show		18207-5235	UC 3555	AB	253	52.1	73
Show		18245-5326	RST3178		151	0.4	78
Show		18237-5256	UC 3570		16	20.6	80
Show		18106-5437	NZO 88		124	7.4	80
Show		18244-5401	UC 3573		55	48.6	81
Show		18200-5222	KIR 20		163	23.2	81
Show		18222-5435	UC 3564		157	32.9	83
Show		18067-5349	BRT2098		104	1.8	84
Show		18074-5255	UC 3498		277	81.5	86
Show		18248-5256	RST 981		221	1.5	88
Show		18258-5338	HJ 5041		260	2.9	89
Show		18069-5411	UC 3496		337	20.2	89
Show		18149-5505	RST 972		216	0.7	93
Show		18229-5443	UC 3567		155	31.6	93
Show		18242-5434	LPO 64		177	3.0	95
Show		18119-5205	DAW 21	BC	102	1.6	96
Show		18119-5205	HJ 5022	A,BC	97	6.1	96
Show		18050-5333	UC 3489		348	32.0	98
Show		18207-5203	HDS2593		79	13.9	100
Show		18096-5456	RST3154		156	1.7	100
Show		18155-5149	HDS2578		333	0.4	104
Show		18275-5317	RST3179		190	0.4	105
Show		18201-5156	RST 975		212	0.6	105
Show		18276-5402	B 390		8	1.4	108
Show		18067-5447	TDT 688		172	0.5	110
Show		18119-5147	RST 970		201	1.3	113
Show		18278-5252	B 1361	AB	62	5.6	114
Show		18278-5252	SIN 110	AC	164	19.6	114
Show		18150-5530	UC 3534		83	23.4	118
Show		18206-5144	CPO 582		156	4.2	119
Show		18124-5530	RST 969		94	1.9	121
Show		18294-5309	UC 3590		349	34.0	123

WDS 18160-5333 : COMPONENTS

	A	B
B	pa=268.0° sep=14.36"
C	pa=249.7° sep=18.98"	pa=209.7° sep=6.99"

18160-5333 A

Name	HD 166952	Coord arcsec 2000	181558.37-533310.1	Mag	10.11	Spectral class	A9V (white)
PmRA	0.00	PmDE	3.0	SAO	245357	Tycho2	8744-02679-1
HD	166952	DM	CP-53 9025

Tycho2

Tycho2	8744-02679-1	Pflag		RAmdeg	273.99325217	DEmdeg	-53.55281628
PmRA	7.0	PmDE	-1.3	E RAmdeg	17	E DEmdeg	18
E pmRA	1.5	E pmDE	1.5	EpRAm	1986.43	EpDEm	1985.47
Num	9	Q RAmdeg	0.6	Q DEmdeg	1.0	Q pmRA	0.7
Q pmDE	1.0	BTmag	10.337	E BTmag	0.032	VTmag	9.919
E VTmag	0.031	Prox	999	TYC	T	HIP
CCDM		RAdeg	273.99322639	DEdeg	-53.55281222	EpRA 1990	1.64
EpDE 1990	1.56	E RAdeg	18.5	E DEdeg	20.8	Posflg
Corr	0.0

SAO

SAO	245357	DelFlag		RA1950		PmRA1950	0.0028
DE1950		PmDE1950	-0.046	Vmag	9.8	SpType	A5
Double code		Source	42	CatNum	7220	DM	CP-53 9025
DMcomp		BDsup		HD	166952	M HD	0
GC		RA1950rad	4.76432925	DE1950rad	-0.93497002	PmRA2000	0.0024
PmDE2000	-0.048

CCDM

Ccdm	18160-5333	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.52	DDEs	-12.8
R dRAs	10	Year		Theta		Rho
Obs	3	Vmag	9.8	Sp	A5	PmNote	*
PmRA	25	PmDE	-46	Dm number	-53 9025	Cat1	CPD
Name2	245357	Cat2	SAO	HD	166952	M HD
ADS BDS		M ADS BDS		N IDS		IDS	18078S5335A
HIC

18160-5333 B

Coord arcsec 2000	181556.76-533310.6		Coord calc	181556.76-533310.6		Mag	11.6		PmRA	3.00
PmDE	0.0		Calc delta mag	1.49

CCDM

Ccdm	18160-5333	RComp		Comp	B	Note1
Note2		Discov num	HJ 5453	DRAs		DDEs
R dRAs		Year	1916	Theta	270	Rho	14.4
Obs	1	Vmag	11.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS	N	N IDS		IDS	18078S5335B
HIC

18160-5333 C

Coord arcsec 2000	181556.37-533316.7		Mag	13.1		PmRA	-51.00		PmDE	-93.0
Calc delta mag	2.99		Calc coord	yes

CCDM

Ccdm	18160-5333	RComp	B	Comp	C	Note1
Note2		Discov num	DAW	DRAs		DDEs
R dRAs		Year	1916	Theta	219	Rho	8.0
Obs	1	Vmag	13.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18078S5335C
HIC