18101-3044 BU 245 (HD 166023)

18^h 10^m 05.81^s -30° 43' 43.3" P.A. 345.00 sep 4.1 mag 5.77,7.99 Sp K1II dist. 137.74 pc (449.31 l.y.)

Coord 2000	18101-3044	Discov num	BU 245	Comp		Coord arcsec 2000	18 10 05.81 -30 43 43.3
Date first	1874	Date last	2016	Obs	43
Pa first	355	Pa last	345.3	P.A. Now (θ)	345.3°
Sep first	3.5	Sep last	4.14	Sep. Now (ρ)	4.14"
Mag pri	5.77	Mag sec	7.99	delta mag (ΔM)	2.22	Spectral class	K1II (yellow-orange)
Pri motion ra	+007	Sec motion ra	+013
Pri motion dec	-038	Sec motion dec	-028
Notes	N (See Notes)

rPM=0.302

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 166023	Constellation	Sagittarius	SAO	209803	HIP	89020
Tycho2	7392-03056-1	Gaia DR2	4049242222690813056	HD	166023	HR	6780
GC	24748	CD	CD-3015316	Distance	137.74	Distance ly	449.31

WDS 18101-3044 BU 245 (HD 166023) : NOTES

discov_num	notes	refcode
BU 245	HDO 149

REFERENCES

refcode	metd	author	reference
Bu_1873a	Ma -	Burnham, S.W. (BU 1 - 81)	1873MNRAS..33..351B
Bu_1873a		MNRAS 33, 351, 1873
Bu_1873b	Ma -	Burnham, S.W. (BU 82 - 106)	1873MNRAS..33..437B
Bu_1873b		MNRAS 33, 437, 1873
Bu_1873c	-	Burnham, S.W.	1873MNRAS..33..567B
Bu_1873c		MNRAS 33, 567, 1873
Bu_1873d	Ma -	Burnham, S.W. (BU 107 - 182)	1873MNRAS..34...59B
Bu_1873d		MNRAS 34, 59, 1873
Bu_1874a	Ma -	Burnham, S.W. (BU 183 - 229)	1874MNRAS..34..382B
Bu_1874a		MNRAS 34, 382, 1874
Bu_1874b	Ma -	Burnham, S.W. (BU 230 - 300)	1874MNRAS..35...31B
Bu_1874b		MNRAS 35, 31, 1874
Bu_1874c	-	Burnham, S.W.	1874MNRAS..34..370B
Bu_1874c		MNRAS 34, 370, 1874
Bu_1874d	Ma -	Burnham, S.W.	1874MNRAS..34..393B
Bu_1874d		MNRAS 34, 393, 1874
Bu_1874e	Ma -	Burnham, S.W.	1874MNRAS..35...28B
Bu_1874e		MNRAS 35, 28, 1874
Bu_1875	Ma -	Burnham, S.W. (BU 301 - 390)	1875AN.....86..337B
Bu_1875		AN 86, 337, 1875
Bu_1876	Ma -	Burnham, S.W. (BU 391 - 436)	1876AN.....88..225B
Bu_1876		AN 88, 225, 1876
Bu_1876b	-	Burnham, S.W.	1876MNRAS..36...99B
Bu_1876b		MNRAS 36, 99, 1876
Bu_1876c	-	Burnham, S.W.	1876MNRAS..36..331B
Bu_1876c		MNRAS 36, 331, 1876 (no new data)
Bu_1877	Ma -	Burnham, S.W. (BU 453 - 482)	1877MNRAS..38...78B
Bu_1877		MNRAS 38, 78, 1877
Bu_1878a	Ma -	Burnham, S.W.	1878MNRAS..38..408B
Bu_1878a		MNRAS 38, 408, 1878
Bu_1878b	-	Burnham, S.W.	1878MNRAS..38..476B
Bu_1878b		MNRAS 38, 476, 1878
Bu_1878c	-	Burnham, S.W.	1878MNRAS..38..478B
Bu_1878c		MNRAS 38, 478, 1878
Bu_1878d	Ma j	Burnham, S.W.	1878AN.....92..235B
Bu_1878d		AN 92, 235, 1878
Bu_1879	Ma j	Burnham, S.W.	1879MmRAS..44..141B
Bu_1879		MemRAS 44, 141, 1879
Bu_1879B	Ma -	Burnham, S.W.	1879Obs.....3...20G
Bu_1879B		cited by Gledhill (Obs 3, 20, 1879)
Bu_1879C	Ma -	Burnham, S.W.	1879Obs.....3..142G
Bu_1879C		cited by Gledhill (Obs 3, 142, 1879)
Bu_1879d	Ma -	Burnham, S.W.	1879Obs.....3...92B
Bu_1879d		Obs 3, 92, 1879
Bu_1879e	Ma -	Burnham, S.W.	1879MNRAS..40...99B
Bu_1879e		MNRAS 40, 99, 1879
Bu_1880A	Ma -	Burnham, S.W.	1880Obs.....3..508G
Bu_1880A		cited by Gledhill (Obs 3, 508, 1880)
Bu_1880C	Ma -	Burnham, S.W.	1880Obs.....3..314G
Bu_1880C		cited by Gledhill (Obs 3, 314, 1880)
Bu_1880D	Ma -	Burnham, S.W.	1880Obs.....3..352G
Bu_1880D		cited by Gledhill (Obs 3, 352, 1880)
Bu_1880e	Ma -	Burnham, S.W.	1880Obs.....3..408B
Bu_1880e		Obs 3, 408, 1880
Bu_1880f	Ma -	Burnham, S.W.	1880MNRAS..40..497B
Bu_1880f		MNRAS 40, 497, 1880
Bu_1880g	Ma -	Burnham, S.W.	1880MNRAS..41...33B
Bu_1880g		MNRAS 41, 33, 1880
Bu_1881	Ma j	Burnham, S.W.	1881Obs.....4...19G
Bu_1881		cited by Gledhill (Obs 4, 19, 1881)
Bu_1882a	Ma -	Burnham, S.W. (BU 776 - 863)	1882PWasO...1...91B
Bu_1882a		Pub. Washburn Obs. 1, 91, 1882
Bu_1882b	Ma -	Burnham, S.W.	1882PWasO...1..113B
Bu_1882b		Pub. Washburn Obs. 1, 113, 1882
Bu_1883	Ma j	Burnham, S.W. (BU 864 - 1025)	1883MmRAS..47..167B
Bu_1883		MemRAS 47, 167, 1883
Bu_1883b	Ma -	Burnham, S.W.	1883MNRAS..43..318B
Bu_1883b		MNRAS 43, 318, 1883
Bu_1884	Ma j	Burnham, S.W.	1884MNRAS..44..365H
Bu_1884		MNRAS 44, 365, 1884
Bu_1884b	Ma -	Burnham, S.W.	1884AN....110..133B
Bu_1884b		AN 110, 133, 1884
Bu_1884C	Ma -	Burnham, S.W.	1884AReg...22..216S
Bu_1884C		cited by Sadler (Astr. Register 22, 216, 1884)
Bu_1887	Ma -	Burnham, S.W. (BU 734 - 775)	1887PLicO...1...24B
Bu_1887		Pub. Lick Obs. 1, 24,45, 1887
Bu_1889a	Ma -	Burnham, S.W.	1889AN....122..159B
Bu_1889a		AN 122, 159, 1889 (measures also in Bu_1894c)	1894PLicO...2..197B
Bu_1889b	Ma -	Burnham, S.W. (BU 1026 - 1038)	1889AN....123....1B
Bu_1889b		AN 123, 1, 1889 (measures also in Bu_1894a)	1894PLicO...2..185B
Bu_1889c	Ma -	Burnham, S.W.	1889AN....123...75B
Bu_1889c		AN 123, 75, 1889 (measures also in Bu_1894c)	1894PLicO...2..197B
Bu_1889d	Ma -	Burnham, S.W.	1889PASP....1...36B
Bu_1889d		PASP 1, 36, 1889 (measures also in Bu_1894)	1894PLicO...2....3B
Bu_1889e	Ma j	Burnham, S.W.	1889AN....121...63B
Bu_1889e		AN 121, 63, 1889 (measures also in Bu_1894c)	1894PLicO...2..197B
Bu_1889f	Ma j	Bunham, S.W.	1889MNRAS..49..418B
Bu_1889f		MNRAS 49, 418, 1889
Bu_1890a	Ma -	Burnham, S.W. (BU 1093 - 1154)	1889AN....124...49B
Bu_1890a		AN 124, 49, 1890 (measures also in Bu_1894c)	1894PLicO...2..197B
Bu_1890b	Ma -	Burnham, S.W.	1890AN....125...41B
Bu_1890b		AN 125, 41, 1890 (measures also in Bu_1894)	1894PLicO...2....3B
Bu_1890c	Ma -	Burnham, S.W.	1890PASP....2..138B
Bu_1890c		PASP 2, 138, 1890 (measures also in Bu_1894)	1894PLicO...2....3B
Bu_1891a	orb -	Burnham, S.W.	1891SidM...10..273B
Bu_1891a		Sidereal Messenger 10, 273, 1891
Bu_1891b	orb -	Burnham, S.W.	1891Obs....14..263B
Bu_1891b		Observatory 14, 263, 1891
Bu_1891c	Ma j	Burnham, S.W.	1891AN....127..289B
Bu_1891c		AN 127, 289, 1891
Bu_1892	Ma -	Burnham, S.W. (BU 1225 - 1266)	1892AN....130..257B
Bu_1892		AN 130, 257, 1892 (measures also in Bu_1894e)	1894PLicO...2..221B
Bu_1892b	Ma -	Burnham, S.W.	1892AN....130...77B
Bu_1892b		AN 130, 77, 1892
Bu_1893a	Ma -	Burnham, S.W.	1893AN....131..329B
Bu_1893a		AN 131, 329, 1893 (most measures also in Bu_1894)	1894PLicO...2.....B
Bu_1893b	orb -	Burnham, S.W.	1893MNRAS..53..478B
Bu_1893b		MNRAS 53, 478, 1893
Bu_1893c	orb -	Burnham, S.W.	1893MNRAS..54..119B
Bu_1893c		MNRAS 54, 119, 1893
Bu_1893d	orb -	Burnham, S.W.	1893AstAp..12..494B
Bu_1893d		AstAp 12, 494, 1893
Bu_1893e	orb -	Burnham, S.W.	1893AstAp..12..585B
Bu_1893e		AstAp 12, 585, 1893
Bu_1893f	Ma -	Burnham, S.W. (BU 1267 - 1274)	1893MNRAS..53..273B
Bu_1893f		MNRAS 53, 273, 1893 (most measures also in Bu_1893a)	1893AN....131..329B
Bu_1893g	orb -	Burnham, S.W.	1893MNRAS..53..482B
Bu_1893g		MNRAS 53, 482, 1893
Bu_1894	Ma j	Burnham, S.W.	1894PLicO...2....3B
Bu_1894		Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a)	1893AN....131..329B
Bu_1894a	Ma j	Burnham, S.W. (BU 1026 - 1038)	1894PLicO...2..185B
Bu_1894a		Pub. Lick Obs. 2, 185, 1894
Bu_1894b	Ma j	Burnham, S.W. (BU 1039 - 1092)	1894PLicO...2..188B
Bu_1894b		Pub. Lick Obs. 2, 188, 1894
Bu_1894c	Ma -	Burnham, S.W. (BU 1093 - 1154)	1894PLicO...2..197B
Bu_1894c		Pub. Lick Obs. 2, 197, 1894
Bu_1894d	Ma -	Burnham, S.W. (BU 1155 - 1224)	1894PLicO...2..206B
Bu_1894d		Pub. Lick Obs. 2, 206, 1894
Bu_1894e	Ma -	Burnham, S.W. (BU 1225 - 1266)	1894PLicO...2..221B
Bu_1894e		Pub. Lick Obs. 2, 221, 1894
Bu_1894f	Ma -	Burnham, S.W. (BU 1267 - 1274)	1894PLicO...2..229B
Bu_1894f		Pub. Lick Obs. 2, 229, 1894 (all measures also in Bu_1893f)	1893MNRAS..53..273B
Bu_1894g	Ma -	Burnham, S.W.	1894PLicO...2..159B
Bu_1894g		Pub. Lick Obs. 2, 159, 1894
Bu_1898	orb -	Burnham, S.W.	1898MNRAS..59...59B
Bu_1898		MNRAS 58, 59, 1898
Bu_1900	Ma -	Burnham, S.W.	1900PYerO...1....1B
Bu_1900		Pub. Yerkes Obs. 1, 1, 1900
Bu_1902A	Ma j	Burnham, S.W.	1902AN....158..241E
Bu_1902A		cited by Espin (AN 158, 241, 1902)
Bu_1903	Ma -	Burnham, S.W.	1903PYerO...2....1B
Bu_1903		Pub. Yerkes Obs. 2, 1, 1903
Bu_1906	Ma j	Burnham, S.W.	1906QB821.B972.....
Bu_1906	+M	Burnham Double Star Cat., 1906
Bu_1906B	Ma -	Burnham, S.W.	1906MmRAS..56....1L
Bu_1906B	+orb	cited by Lewis (MemRAS 56, 1, 1906)
Bu_1907	Ma -	Burnham, S.W.	1907AN....176..129B
Bu_1907		AN 176, 129, 1907 (most data in Bu_1913)	1913QB811.B8.......
Bu_1908	Ma -	Burnham, S.W.	1908MNRAS..68..517B
Bu_1908		MNRAS 68, 517, 1908
Bu_1908A	Ma -	Burnham, S.W.	1908MNRAS..68..465B
Bu_1908A		cited by Barnard (MNRAS 68, 465, 1908)
Bu_1909	Ma -	Burnham, S.W.	1909AN....180...65B
Bu_1909		AN 180, 65, 1909 (most data in Bu_1913)	1913QB811.B8.......
Bu_1909b	Ma j	Burnham, S.W.	1909AN....182..133B
Bu_1909b		AN 182, 133, 1909
Bu_1910	Ma -	Burnham, S.W.	...................
Bu_1910		Journal Astronomique 1, no. 11, 81, 1910
Bu_1910b	Ma -	Burnham, S.W.	1910AN....185..145B
Bu_1910b		AN 185, 145, 1910 (most data in Bu_1913)	1913QB811.B8.......
Bu_1911	-	Burnham, S.W.	1911MNRAS..72..156J
Bu_1911		MNRAS 72, 156, 1911
Bu_1911b	Ma j	Burnham, S.W.	1911AN....189..385B
Bu_1911b		AN 189, 385, 1911
Bu_1913	Ma j	Burnham, S.W.	1913QB811.B8.......
Bu_1913	+Pa	Carnegie Inst. Wash. #168, 1913
Bu_1913	+T
Bu_1918	Ma j	Burnham, S.W.	1918AJ.....31..141B
Bu_1918		AJ 31, 141, 1918
Bu_1923A	Ma -	Burnham, S.W.	1923MNRAS..83..154E
Bu_1923A		cited by Espin (MNRAS 83, 154, 1923)
Bu_1927A	Ma -	Burnham, S.W.	1927sdsc.book......
Bu_1927A		cited in SDS (Southern Double Star Cat.), 1927
Bu_1932A	Ma -	Burnham, S.W.	1932QB821.A43......
Bu_1932A		cited in ADS (Aitken Double Star Cat.), 1932
Bu_1963A	Ma -	Burnham, S.W.	1963icvd.book.....J
Bu_1963A		cited in IDS (Lick Index Cat.), 1963
Bu_2002A	Ma -	Burnham, S.W.	2002yCat.1275....0D
Bu_2002A		cited in CCDM

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18101-3044	BU 245		2007	42	352	4.1	5.77	7.99	K1II	N D	181005.81-304343.3
18101-3044	BU 245		2011	43	354	4.1	5.77	7.99	K1II	N D	181005.81-304343.3
18101-3044	BU 245		2016	44	345	4.1	5.77	7.99	K1II	N	181005.81-304343.3

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

WDS 18101-3044 BU 245 (HD 166023) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18101-3044 BU 245 (HD 166023) : MEASURES

No records found.

WDS 18101-3044 (HD 166023) : 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 18101-3044 (HD 166023) : ALADIN DSS IMAGE @ 18^h 10^m 05.81^s -30° 43' 43.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18101-3044 BU 245 (HD 166023) : 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		18101-3044	BU 245		345	4.1
Show		18086-3032	DAM1036		249	7.1	23
Show		18082-3032	SKF2063		53	7.6	27
Show		18080-3055	SKF1058		216	3.3	30
Show		18089-3115	B 2855		243	6.7	35
Show		18085-3113	PRO 197		283	7.9	36
Show		18074-3011	B 1350		216	0.1	49
Show		18082-3127	BRT3060		55	4.0	50
Show		18097-3133	JSP 768		270	2.6	51
Show		18118-2956	HDS2567		333	9.2	53
Show		18059-3040	RSS 471		138	8.1	55
Show		18060-3018	BRT3059		65	4.2	59
Show		18119-2950	RST2037		2	0.4	60
Show		18113-2938	B 927		212	4.7	68
Show		18048-3039	KPP2157		168	17.6	69
Show		18131-3143	PRO 198		218	7.0	70
Show		18105-2934	BRT3328		347	1.5	71
Show		18149-3123	B 2437		239	8.5	74
Show		18101-2928	OL 48		7	2.9	76
Show		18161-3051	HDS2580		196	2.4	78
Show		18124-2929	B 929		278	3.6	81
Show		18051-2955	RST2025		194	0.3	81
Show		18162-3110	HJ 5037		227	36.9	83
Show		18138-3155	TDT 748		85	0.6	86
Show		18167-3047	BRT3063		180	4.2	87
Show		18054-3146	B 1349	AB	138	1.2	87
Show		18054-3146	B 1349	AC	294	5.8	87
Show		18136-3158	B 1353		114	0.1	87
Show		18091-2915	BRT3061		236	3.9	90
Show		18103-2913	HO 428		92	0.4	91
Show		18033-3112	RSS 469		291	10.5	92
Show		18173-3043	RST2046		267	0.8	94
Show		18044-2946	SHN 226		-1	0.5	94
Show		18169-3122	KPP 411		163	3.9	96
Show		18050-2935	BLM 5	Aa,Ab	210	0.2	96
Show		18050-2935	SEE 346	AB	232	34.0	96
Show		18050-2935	SEE 346	AC	106	41.4	96
Show		18050-2935	EVS 33	AD	341	6.3	96
Show		18050-2935	EVS 33	AE	46	19.0	96
Show		18054-2930	RST2026		315	4.8	96
Show		18062-3206	RST2029		110	0.4	96
Show		18122-3217	I 629		156	1.4	98
Show		18164-2951	J 1624		121	3.8	98
Show		18025-3101	TDT 648		258	0.5	100
Show		18101-3225	JSP 769		1	2.0	102
Show		18167-2945	I 1358		179	2.5	104
Show		18095-2859	SKF2064	A,BC	309	43.4	104
Show		18095-2859	RST2032	BC	203	0.9	104
Show		18021-3020	KPP2760		238	22.9	106
Show		18169-2943	RST2045		256	3.1	108
Show		18069-2905	RSS 472		147	11.3	108

WDS 18101-3044 : COMPONENTS

	A
B	pa=347.3° sep=4.11"

18101-3044 A

Componente originario normalizzato	AB	Name	HD 166023	Coord arcsec 2000	181005.81-304343.3	Mag	5.77
Spectral class	K1II (yellow-orange)	PmRA	7.00	PmDE	-38.0	SAO	209803
HIP	89020	Tycho2	7392-03056-1	HD	166023	HR	6780
GC	24748	CD	CD-3015316

Tycho2

Tycho2	7392-03056-1	Pflag		RAmdeg	272.52421070	DEmdeg	-30.72869109
PmRA	7.1	PmDE	-38.3	E RAmdeg	4	E DEmdeg	5
E pmRA	3.0	E pmDE	2.9	EpRAm	1991.88	EpDEm	1991.73
Num	3	Q RAmdeg	1.5	Q DEmdeg	3.8	Q pmRA	1.5
Q pmDE	3.8	BTmag	7.049	E BTmag	0.015	VTmag	5.765
E VTmag	0.009	Prox	41	TYC	T	HIP	89020
CCDM	A	RAdeg	272.52419194	DEdeg	-30.72860333	EpRA 1990	1.90
EpDE 1990	1.77	E RAdeg	3.5	E DEdeg	4.5	Posflg
Corr	0.0

SAO

SAO	209803	DelFlag		RA1950		PmRA1950	0.0003
DE1950		PmDE1950	-0.027	Vmag	5.6	SpType	K0
Double code		Source	70	CatNum	24748	DM	CD-3015316
DMcomp	A	BDsup		HD	166023	M HD	0
GC	24748	RA1950rad	4.74236601	DE1950rad	-0.53648815	PmRA2000	0.0002
PmDE2000	-0.027

Hipparcos

Catalog	H	HIP	89020	Proxy	H	RAhms	18 10 05.81
DEdms	-30 43 43.0	Vmag	5.53	VarFlag		R Vmag	G
RAdeg	272.524	DEdeg	-30.7286	AstroRef	A	Plx	9.05
CCDM	18101-3044	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	352	Rho	4.066	HD	166023	BD
CD	CD-3015316	CP		Dm number	-3015316	VIred	0.98
SpType	K1III + (F)	R SpType		Coord arcsec 2000	181005.81-304343.0

Hipparcos 2

HIP	89020	Sn	15	So	3	Nc	2
RArad	4.7564443958	DErad	-0.5363152036	Plx	7.26	PmRA	13.94
PmDE	-28.91	E RArad	0.61	E DErad	0.39	E Plx	0.69
E pmRA	0.77	E pmDE	0.4	Hpmag	5.6792	E Hpmag	0.0008
SHp	0.008	VA	0	BV	0.979	E BV	0.002
VI	0.98

CCDM

Ccdm	18101-3044	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.25	DDEs	17.9
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	5.6	Sp	K0	PmNote	*
PmRA	18	PmDE	-24	Dm number	-3015316	Cat1	CD
Name2	209803	Cat2	SAO	HD	166023	M HD
ADS BDS	B 8371	M ADS BDS		N IDS		IDS	18036S3045A
HIC	89020

18101-3044 B

Componente originario normalizzato	AB		Coord arcsec 2000	181005.74-304339.3		Mag	7.99		PmRA	13.00
PmDE	-28.0		Calc delta mag	2.22		Calc coord	yes

CCDM

Ccdm	18101-3044	RComp		Comp	B	Note1
Note2		Discov num	BU 245	DRAs	-0.46	DDEs	23.4
R dRAs	10	Year	1868	Theta	352	Rho	4.0
Obs	99	Vmag	8.6	Sp		PmNote	*
PmRA	-23	PmDE	-6	Dm number		Cat1
Name2	209802	Cat2	SAO	HD		M HD
ADS BDS	B 8371	M ADS BDS		N IDS		IDS	18036S3045B
HIC	89020