20137-3407 JC 24 AC

20^h 13^m 41.64^s -34° 07' 03.7" P.A. 16.00 sep 79.5 mag 7.05,10.76 Sp K1/2III dist. 163.13 pc (532.13 l.y.)

Coord 2000	20137-3407	Discov num	JC 24	Comp	AC	Coord arcsec 2000	20 13 41.64 -34 07 03.7
Date first	1856	Date last	2015	Obs	7
Pa first	18	Pa last	15.9	P.A. Now (θ)	15.9°
Sep first	90.0	Sep last	79.475	Sep. Now (ρ)	79.475"
Mag pri	7.05	Mag sec	10.76	delta mag (ΔM)	3.71	Spectral class	K1/2III (yellow-orange)
Pri motion ra	+024	Sec motion ra	+012
Pri motion dec	-011	Sec motion dec	-008
Notes

rPM=0.469

Nature of this double is uncertain.

20137-3407 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 191957	211916	20 13 42 -34 07 04	HJ 5178 AB	2016	38	9	2.8	7.05	8.20	1.15
Show		211916	20 13 42 -34 07 04	JC 24 AC	2015	7	16	79.5	7.05	10.76	3.71		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Sagittarius	SAO	211916	HIP	99681	Tycho2	7449-00342-1
Gaia DR2	6699448528429273600	HD	191957	CD	CD-3414220	CP	CP-34 8620
Distance	163.13	Distance ly	532.13

WDS 20137-3407 JC 24 AC : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
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.
Jc_1847	Ma -	Jacob, W.S.	1847MmRAS..16..311J
Jc_1847	+orb	MemRAS 16, 311, 1847
Jc_1847b	Ma -	Jacob, W.S.	1847MNRAS...8...16J
Jc_1847b		MNRAS 8, 16, 1847
Jc_1848a	Ma -	Jacob, W.S.	1848MadOO....8a..57
Jc_1848a		Madras Obs. 57, 1848-1852
Jc_1848b	Ma j	Jacob, W.S.	1854MadOO....8b...1
Jc_1848b		Madras Obs. 8, 1848-1852 Appendix
Jc_1849	Ma -	Jacob, W.S.	1849MmRAS..17...79J
Jc_1849	+orb	MemRAS 17, 79, 1849
Jc_1850	Ma -	Jacob, W.S.	1850MNRAS..10..170J
Jc_1850		MNRAS 10, 170, 1850
Jc_1854	Ma j	Jacob, W.S.	1854MNRAS..14..242J
Jc_1854		MNRAS 14, 242, 1854
Jc_1855a	orb -	Jacob, W.S.	1855MNRAS..15..178J
Jc_1855a		MNRAS 15, 178, 1855
Jc_1855b	orb -	Jacob, W.S.	1855MNRAS..15..205J
Jc_1855b		MNRAS 15, 205, 1855
Jc_1855C	Ma j	Jacob, W.S.	1855MNRAS..15..161F
Jc_1855C		cited by Fletcher (MNRAS 15, 161, 1855)
Jc_1856	orb -	Jacob, W.S.	1856AN.....44...43J
Jc_1856		AN 44, 43, #1035, 1856
Jc_1856b	-	Jacob, W.S.	1856MNRAS..17...19J
Jc_1856b		MNRAS 17, 19, 1856
Jc_1860	Ma j	Jacob, W.S.	1860MmRAS..28...13J
Jc_1860		MemRAS 28, 13, 1860
Jc_1867	Ma -	Jacob, W.S.	1867MmRAS..35..137D
Jc_1867		cited by Dawes (MemRAS 35, 137, 1867)
Jc_1875A	Ma -	Jacob, W.S.	1875AN.....85..323D
Jc_1875A		cited by Doberck, 1875 (see Dob1875b,f,g,h)
Jc_1880A	Ma -	Jacob, W.S.	1880MNRAS..40..497B
Jc_1880A		cited by Burnham (MNRAS 40, 497, 1880)
Jc_1896A	orb -	Jacob, W.S.	1896QB421.S5.......
Jc_1896A		cited by See (Evolution of Stellar Systems, v1, 1896)
Jc_1906A	Ma -	Jacob, W.S.	1906MmRAS..56....1L
Jc_1906A		cited by Lewis (MemRAS 56, 1, 1906)
Jc_1927A	Ma -	Jacob, W.S.	1927sdsc.book......
Jc_1927A		cited in SDS (Southern Double Star Cat.), 1927
Jc_1937A	Ma -	Jacob, W.S.	1937AnLei..18....1S
Jc_1937A		cited by Strand (Ann. Sterrew. Leiden 18, 1937)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20137-3407	JC 24	AC	1998	5	16	82.4	7.05	10.76		D	201341.59-340706.4
20137-3407	JC 24	AC	1999	6	16	81.6	7.05	10.76		D	201341.59-340706.4
20137-3407	JC 24	AC	2015	7	16	79.5	7.05	10.76	K1/2III		201341.64-340703.7

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

WDS 20137-3407 JC 24 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20137-3407 JC 24 AC : MEASURES

No records found.

WDS 20137-3407 : 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 20137-3407 : ALADIN DSS IMAGE @ 20^h 13^m 41.64^s -34° 07' 03.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20137-3407 JC 24 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		20137-3407	HJ 5178	AB	9	2.8
Show		20137-3407	JC 24	AC	16	79.5
Show		20112-3439	BRT1806		301	4.8	45
Show		20128-3454	HDS2881		12	15.5	49
Show		20093-3322	B 2482		125	7.0	72
Show		20201-3356	JSP 811		147	1.5	80
Show		20094-3510	HJ 5170		314	12.8	83
Show		20202-3435	I 1416		323	0.1	86
Show		20182-3258	SEE 413	AB	33	17.5	91
Show		20182-3258	SEE 413	BC	145	5.1	91
Show		20089-3520	KPP4186		150	1.3	94
Show		20062-3340	I 1043		240	2.4	98
Show		20209-3450	B 478		28	6.0	99
Show		20169-3236	STN 64		295	1.7	100
Show		20089-3247	UC 4104		63	27.6	100
Show		20112-3547	UC 4115		276	47.3	105
Show		20072-3520	LIT 33		233	4.6	108
Show		20109-3219	B 987		27	5.1	114
Show		20213-3304	RST2139		320	0.2	114
Show		20138-3602	I 299		26	0.6	116
Show		20054-3312	RST5468		23	0.8	117
Show		20114-3601	TDT2065		150	1.7	118
Show		20055-3300	SEE 404	AB	112	0.6	123
Show		20055-3300	SEE 404	AB,C	186	21.7	123
Show		20130-3609	TDT2095		265	0.4	123
Show		20112-3606	HJ 5173	AB	130	4.3	123
Show		20112-3606	ARY 113	AC	6	66.8	123
Show		20211-3530	UC 4156		350	25.7	124
Show		20098-3602	HDS2872		205	0.5	125
Show		20231-3315	B 2484		239	11.2	129
Show		20046-3513	B 466		84	3.4	130
Show		20041-3503	BRT1805		202	5.4	131
Show		20180-3206	RST2137		162	1.4	132
Show		20040-3504	UC 4073		3	26.4	133
Show		20231-3303	B 2483		146	12.3	134
Show		20156-3154	HJ 5181		4	9.8	136
Show		20036-3315	OCC1105		290	0.0	136
Show		20043-3520	B 465		73	0.7	138
Show		20223-3243	B 2885		358	6.9	138
Show		20116-3151	SEE 408		187	15.1	139
Show		20247-3445	HJ 5195	AB	115	16.3	141
Show		20247-3445	HJ 5195	AC	127	36.1	141
Show		20222-3541	I 430		345	20.7	141
Show		20247-3445	DAW 226	BC	137	20.5	141
Show		20164-3627	HJ 5183	AB	229	36.8	144
Show		20164-3627	HJ 5183	AC	179	46.3	144
Show		20093-3154	VOU 81		125	3.5	145
Show		20220-3224	JSP 812		341	0.2	147
Show		20131-3637	TDT2097		236	1.2	150
Show		20180-3147	UC 4141		349	51.4	151
Show		20053-3557	KPP 454		215	4.9	151

WDS 20137-3407 : COMPONENTS

	A	B
B	pa=7.8° sep=2.78"
C	pa=13.3° sep=78.53"	pa=13.5° sep=75.77"

20137-3407 A

Name	HD 191957	Coord arcsec 2000	201341.64-340703.7	Mag	7.05	Spectral class	K1/2III (yellow-orange)
PmRA	24.00	PmDE	-11.0	SAO	211916	HIP	99681
Tycho2	7449-00342-1	HD	191957	GC	28060	CD	CD-3414220
CP	CP-34 8620

Tycho2

Tycho2	7449-00342-1	Pflag		RAmdeg	303.42336671	DEmdeg	-34.11849249
PmRA	22.6	PmDE	-21.7	E RAmdeg	4	E DEmdeg	5
E pmRA	3.0	E pmDE	3.1	EpRAm	1991.81	EpDEm	1991.42
Num	3	Q RAmdeg	0.2	Q DEmdeg	1.6	Q pmRA	0.2
Q pmDE	1.5	BTmag	8.182	E BTmag	0.016	VTmag	7.051
E VTmag	0.010	Prox	28	TYC	T	HIP	99681
CCDM	A	RAdeg	303.42330472	DEdeg	-34.11844111	EpRA 1990	1.83
EpDE 1990	1.45	E RAdeg	3.9	E DEdeg	4.7	Posflg	D
Corr	-0.2

SAO

SAO	211916	DelFlag		RA1950		PmRA1950	0.0021
DE1950		PmDE1950	-0.022	Vmag	6.7	SpType	G0
Double code		Source	70	CatNum	28060	DM	CD-3414220
DMcomp		BDsup		HD	191957	M HD	0
GC	28060	RA1950rad	5.28177818	DE1950rad	-0.59812684	PmRA2000	0.0021
PmDE2000	-0.024

Hipparcos

Catalog	H	HIP	99681	Proxy	H	RAhms	20 13 41.59
DEdms	-34 07 06.4	Vmag	6.66	VarFlag		R Vmag	H
RAdeg	303.423	DEdeg	-34.1184	AstroRef	A	Plx	7.51
CCDM	20137-3407	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	9	Rho	2.775	HD	191957	BD
CD	CD-3414220	CP	CP-34 8620	Dm number	-3414220	VIred	0.95
SpType	K1/K2III+..	R SpType		Coord arcsec 2000	201341.59-340706.4

Hipparcos 2

HIP	99681	Sn	15	So	3	Nc	2
RArad	5.2957356011	DErad	-0.5954791367	Plx	6.13	PmRA	25.34
PmDE	-9.91	E RArad	0.7	E DErad	0.41	E Plx	0.81
E pmRA	1.02	E pmDE	0.65	Hpmag	6.8054	E Hpmag	0.0009
SHp	0.008	VA	0	BV	0.792	E BV	0.005
VI	0.82

CCDM

Ccdm	20137-3407	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.35	DDEs	-6.4
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.0	Sp	G0	PmNote	*
PmRA	32	PmDE	-11	Dm number	-3414220	Cat1	CD
Name2	211916	Cat2	SAO	HD	191957	M HD
ADS BDS		M ADS BDS		N IDS		IDS	20073S3425A
HIC	99681

20137-3407 B

Coord arcsec 2000	201341.67-340700.9		Mag	8.2		PmRA	24.00		PmDE	-11.0
Calc delta mag	1.15		Calc coord	yes

CCDM

Ccdm	20137-3407	RComp		Comp	B	Note1
Note2		Discov num	HJ 5178	DRAs		DDEs
R dRAs		Year	1856	Theta	010	Rho	2.7
Obs	26	Vmag	8.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20073S3425B
HIC	99681

20137-3407 C

Coord arcsec 2000	201343.09-340547.3		Mag	10.76		PmRA	12.00		PmDE	-8.0
Tycho2	7449-00134-1		Calc delta mag	3.71		Calc coord	yes

Tycho2

Tycho2	7449-00134-1	Pflag		RAmdeg	303.43091404	DEmdeg	-34.09645647
PmRA	5.8	PmDE	-12.2	E RAmdeg	33	E DEmdeg	53
E pmRA	2.5	E pmDE	2.6	EpRAm	1989.64	EpDEm	1985.64
Num	3	Q RAmdeg	1.2	Q DEmdeg	0.2	Q pmRA	1.2
Q pmDE	0.2	BTmag	12.183	E BTmag	0.136	VTmag	10.760
E VTmag	0.057	Prox	797	TYC	T	HIP
CCDM		RAdeg	303.43089778	DEdeg	-34.09642722	EpRA 1990	1.82
EpDE 1990	1.39	E RAdeg	33.0	E DEdeg	54.9	Posflg
Corr	0.0