18540+3723 BU 137 AC

18^h 53^m 57.56^s +37° 22' 49.7" P.A. 146.00 sep 23.6 mag 8.69,12.00 Sp G5III-IV

Coord 2000	18540+3723	Discov num	BU 137	Comp	AC	Coord arcsec 2000	18 53 57.56 +37 22 49.7
Date first	1880	Date last	2015	Obs	20
Pa first	142	Pa last	145.8	P.A. Now (θ)	145.8°
Sep first	17.9	Sep last	23.617	Sep. Now (ρ)	23.617"
Mag pri	8.69	Mag sec	12.00	delta mag (ΔM)	3.31	Spectral class	G5III-IV (yellow)
Pri motion ra	-021	Sec motion ra	-007
Pri motion dec	+047	Sec motion dec	-011
Notes

rPM=1.159

This double is not physical.

18540+3723 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 175491	67544	18 53 58 +37 22 50	BU 137 AB	2022	136	167	1.6	8.69	9.02	0.33	Y
Show		67544	18 53 58 +37 22 50	BU 137 AC	2015	20	146	23.6	8.69	12.00	3.31		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Lyra		SAO	67544		Tycho2	2650-01881-1		Gaia DR2	2094001134684220800
HD	175491

WDS 18540+3723 BU 137 AC : NOTES

No records found.

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
18540+3723	BU 137	AC	2008	16	146	24.0	8.69	12.00	G5III-IV	D	185357.56+372249.7
18540+3723	BU 137	AC	2012	18	146	24.2	8.69	12.00	G5III-IV	D	185357.56+372249.7
18540+3723	BU 137	AC	2015	20	146	23.6	8.69	12.00	G5III-IV		185357.56+372249.7

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

WDS 18540+3723 BU 137 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18540+3723 BU 137 AC : MEASURES

No records found.

WDS 18540+3723 : 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 18540+3723 : ALADIN DSS IMAGE @ 18^h 53^m 57.56^s +37° 22' 49.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18540+3723 BU 137 AC : 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		18540+3723	BU 137	AB	167	1.6
Show		18540+3723	BU 137	AC	146	23.6
Show		18545+3719	HO 90		228	4.0	8
Show		18534+3728	HO 89		170	6.0	9
Show		18541+3743	TOI1191		86	0.7	21
Show		18523+3713	COU1311		226	1.3	22
Show		18527+3704	UC 3706		241	15.4	25
Show		18520+3731	ES 2026	BC	334	4.6	25
Show		18550+3702	L 41		32	1.7	25
Show		18520+3731	ES 2026	AB	112	20.5	25
Show		18537+3658	H 6 3		20	175.3	25
Show		18545+3654	SMR 13	HI	251	26.1	29
Show		18546+3656	ELS 7	AB	338	8.5	29
Show		18546+3656	ELS 7	AC	121	10.3	29
Show		18545+3654	ES 2028	BC	135	2.1	29
Show		18559+3707	ES 2486		269	7.9	29
Show		18536+3752	ES 2027		137	4.1	29
Show		18545+3654	ES 2028	AB	349	86.3	30
Show		18545+3654	SMR 13	AD	210	193.1	30
Show		18545+3654	SMR 13	AE	238	400.6	30
Show		18545+3654	SMR 13	AF	245	369.4	30
Show		18545+3654	SMR 13	AG	261	335.9	30
Show		18545+3654	SMR 13	AH	284	229.4	30
Show		18545+3654	SMR 13	AJ	249	279.5	30
Show		18545+3654	SMR 13	AK	236	304.2	30
Show		18532+3654	TDT1110		3	1.3	31
Show		18516+3739	ES 2025	AB	353	25.0	33
Show		18516+3739	ES 2025	AD	356	30.1	33
Show		18516+3739	FYM 39	AE	299	63.2	33
Show		18516+3739	FYM 39	AF	205	87.9	33
Show		18516+3739	FYM 39	AG	116	55.1	33
Show		18536+3651	UC 3714		305	76.2	33
Show		18516+3739	ES 2025	BC	78	5.9	33
Show		18516+3739	ES 2025	BD	11	5.3	33
Show		18551+3645	ES 2485		162	6.2	40
Show		18572+3704	ES 2030	AB	233	2.9	43
Show		18572+3704	ES 2030	AC	240	12.7	43
Show		18516+3648	ES 241		72	2.2	45
Show		18562+3803	UC 3731		213	23.7	49
Show		18536+3814	UC 3713		297	81.8	52
Show		18530+3621	HJ 1354	AB	5	10.2	63
Show		18590+3654	ES 2032		247	4.2	67
Show		18483+3741	UC 3677		338	64.3	70
Show		18529+3614	A 1383		299	1.4	70
Show		18581+3813	STF2427	AB	59	55.9	71
Show		18581+3813	CTT 11	AD	291	57.2	71
Show		18581+3813	STF2427	AC	61	62.0	71
Show		18581+3813	SP 2	AE	350	162.3	71
Show		18581+3813	STF2427	BC	79	7.2	72
Show		18581+3813	SP 2	BE	330	150.2	72
Show		18581+3813	SMR 14	EF	331	82.7	72

WDS 18540+3723 : COMPONENTS

	A	B
B	pa=169.2° sep=1.55"
C	pa=151.6° sep=22.20"	pa=150.3° sep=20.73"

18540+3723 A

Name	HD 175491	Coord arcsec 2000	185357.56+372249.7	Mag	8.69	Spectral class	G5III (yellow)
PmRA	-16.00	PmDE	45.0	SAO	67544	Tycho2	2650-01881-1
HD	175491	DM	BD+37 3276

Tycho2

Tycho2	2650-01881-1	Pflag	P	RAmdeg	283.48985667	DEmdeg	37.38048785
PmRA	-16.2	PmDE	45.2	E RAmdeg	9	E DEmdeg	9
E pmRA	2.4	E pmDE	2.3	EpRAm	1991.32	EpDEm	1991.33
Num	5	Q RAmdeg	1.1	Q DEmdeg	1.1	Q pmRA	1.1
Q pmDE	1.1	BTmag	9.494	E BTmag	0.020	VTmag	8.694
E VTmag	0.014	Prox	15	TYC	T	HIP
CCDM		RAdeg	283.48982528	DEdeg	37.38053417	EpRA 1990	1.58
EpDE 1990	1.62	E RAdeg	8.7	E DEdeg	8.6	Posflg	D
Corr	0.1

SAO

SAO	67544	DelFlag		RA1950		PmRA1950	-0.0015
DE1950		PmDE1950	0.034	Vmag	7.4	SpType	G0
Double code		Source	5	CatNum	1711	DM	BD+37 3276
DMcomp		BDsup		HD	175491	M HD	0
GC		RA1950rad	4.94026109	DE1950rad	0.65128504	PmRA2000	-0.0012
PmDE2000	0.034

CCDM

Ccdm	18540+3723	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.46	DDEs	-10.2
R dRAs	10	Year		Theta		Rho
Obs	3	Vmag	8.2	Sp	G0	PmNote	*
PmRA	-21	PmDE	45	Dm number	+37 3276	Cat1	BD
Name2	+37 1711	Cat2	AGK2/3	HD	175491	M HD
ADS BDS	A11811	M ADS BDS		N IDS		IDS	18505N3715A
HIC

18540+3723 B

Coord arcsec 2000	185357.58+372248.2		Mag	9.02		Spectral class	IV		PmRA	-16.00
PmDE	45.0		Tycho2	2650-01881-2		Calc delta mag	0.33		Calc coord	yes

Tycho2

Tycho2	2650-01881-2	Pflag	P	RAmdeg	283.48985667	DEmdeg	37.38048785
PmRA	-16.2	PmDE	45.2	E RAmdeg	9	E DEmdeg	9
E pmRA	2.4	E pmDE	2.3	EpRAm	1991.32	EpDEm	1991.33
Num	5	Q RAmdeg	1.1	Q DEmdeg	1.1	Q pmRA	1.1
Q pmDE	1.1	BTmag	9.772	E BTmag	0.024	VTmag	9.018
E VTmag	0.017	Prox	15	TYC	T	HIP
CCDM		RAdeg	283.49003028	DEdeg	37.38014194	EpRA 1990	1.60
EpDE 1990	1.63	E RAdeg	10.8	E DEdeg	11.0	Posflg	D
Corr	0.1

CCDM

Ccdm	18540+3723	RComp		Comp	B	Note1
Note2		Discov num	BU 137	DRAs		DDEs
R dRAs		Year	1959	Theta	150	Rho	1.4
Obs	99	Vmag	8.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A11811	M ADS BDS		N IDS		IDS	18505N3715B
HIC

18540+3723 C

Coord arcsec 2000	185358.44+372230.2		Mag	12		Spectral class	IV		PmRA	-7.00
PmDE	-11.0		Calc delta mag	3.31		Calc coord	yes

CCDM

Ccdm	18540+3723	RComp		Comp	C	Note1
Note2		Discov num	BU 137	DRAs		DDEs
R dRAs		Year	1924	Theta	144	Rho	18.7
Obs	1	Vmag	11.1	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A11811	M ADS BDS		N IDS		IDS	18505N3715C
HIC