20540-6158 HDS 2978 (HD 198535)

20^h 53^m 59.15^s -61° 57' 55.4" P.A. 352.00 sep 0.6 mag 9.60,11.28 Sp G8III dist. 2777.78 pc (9061.12 l.y.)

Coord 2000	20540-6158	Discov num	HDS2978	Comp		Coord arcsec 2000	20 53 59.15 -61 57 55.4
Date first	1991	Date last	2021	Obs	2
Pa first	353	Pa last	351.8	P.A. Now (θ)	351.8°
Sep first	0.6	Sep last	0.579	Sep. Now (ρ)	0.579"
Mag pri	9.60	Mag sec	11.28	delta mag (ΔM)	1.68	Spectral class	G8III (yellow)
Pri motion ra	+008	Sec motion ra
Pri motion dec	-025	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 198535	Constellation	Pavo	SAO	254894	HIP	103156
Tycho2	9105-00448-1	Gaia DR2	6451206290669710592	HD	198535	CP	CP-62 6184
Distance	2777.78	Distance ly	9061.12

WDS 20540-6158 HDS 2978 (HD 198535) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
HDS		Hipparcos Double Star (from additional DD list)	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20540-6158	HDS2978		1991	1	353	0.6	9.49	12.30	G8III	D	205359.15-615755.4
20540-6158	HDS2978		2021	2	352	0.6	9.60	11.28	G8III		205359.15-615755.4

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

WDS 20540-6158 HDS 2978 (HD 198535) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20540-6158 HDS 2978 (HD 198535) : MEASURES

No records found.

WDS 20540-6158 (HD 198535) : 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 20540-6158 (HD 198535) : ALADIN DSS IMAGE @ 20^h 53^m 59.15^s -61° 57' 55.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20540-6158 HDS 2978 (HD 198535) : 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		20540-6158	HDS2978		352	0.6
Show		20516-6226	RMK 26	AB	78	2.4	33
Show		20517-6125	HU 1622		312	1.5	37
Show		20587-6234	B 1003		138	0.5	49
Show		20545-6101	TDT2624	Ba,Bb	272	0.6	58
Show		20545-6101	BVD 132	AB	175	70.7	59
Show		20472-6320	UC 4287		21	24.0	95
Show		20412-6242	R 323	AB	319	2.9	100
Show		20412-6242	BAU 63	AC	266	9.1	100
Show		20415-6114	RST4673		76	0.7	100
Show		20403-6132	TDT2462		83	2.2	101
Show		20447-6319	LDS 719		171	187.2	104
Show		20535-6348	LDS 726		195	7.5	110
Show		20514-6003	TDT2582		206	0.5	116
Show		20489-6353	HU 1620		271	1.3	120
Show		20422-6332	RST1075		286	1.4	123
Show		20579-6359	TSN 36	AB	122	260.3	124
Show		20412-6034	UC 4256		118	12.2	125
Show		20363-6219	TDT2412		18	0.6	126
Show		20355-6151	KPP1026		238	8.2	132
Show		20360-6237	KPP3073		58	13.7	132
Show		21129-6218	TDT2830		152	2.3	134
Show		20496-5946	KPP2031		85	16.2	136
Show		20423-6348	TDT2483		87	0.6	137
Show		20379-6038	EGN 25	Ba,Bb	165	0.4	141
Show		20379-6038	MUG 4	AB	175	10.8	141
Show		20379-6038	TOK 630	AC	52	743.3	141
Show		20444-6411	B 994		193	0.8	149
Show		20496-6427	DAW 229	AB	136	7.7	151
Show		20496-6427	BAU 64	AC	305	49.8	151
Show		20496-6427	BAU 64	AD	161	51.0	151
Show		20527-6432	HDS2974		31	1.0	155
Show		20356-6038	UC 4226		150	26.3	155
Show		20347-6319	HU 1615		287	0.2	156
Show		20351-6042	RST4670		213	0.2	157
Show		21061-6411	TDT2746		330	0.4	157
Show		20407-6411	HU 1616		68	0.7	161
Show		20564-5916	I 129	AB	335	2.6	163
Show		20564-5916	I 129	AC	26	38.4	163
Show		20357-6348	TDT2403		237	1.0	167
Show		20505-5911	UC 4307		1	25.2	169
Show		20416-6427	UC 4259		191	13.9	171
Show		21132-6354	UC 4408		165	21.4	175
Show		20574-5905	TOK 701	Ba,Bb	219	0.1	176
Show		20574-5905	COO 241		260	3.7	176
Show		21126-6003	I 258		154	0.6	178
Show		20490-6453	UC 4298		57	10.8	179
Show		20398-6430	HJ 5217		232	7.7	180
Show		20360-6412	B 991		167	3.1	182
Show		21129-6407	RSS 555		95	8.2	183
Show		21032-6452	TDT2715		294	1.8	186

WDS 20540-6158 : COMPONENTS

	A
B	pa=356.1° sep=0.57"

20540-6158 A

Componente originario normalizzato	AB	Name	HD 198535	Coord arcsec 2000	205359.15-615755.4	Mag	9.6
Spectral class	G8III (yellow)	PmRA	8.00	PmDE	-25.0	SAO	254894
HIP	103156	Tycho2	9105-00448-1	HD	198535	CP	CP-62 6184

Tycho2

Tycho2	9105-00448-1	Pflag		RAmdeg	313.49650165	DEmdeg	-61.96543474
PmRA	5.6	PmDE	-26.3	E RAmdeg	11	E DEmdeg	11
E pmRA	1.4	E pmDE	1.5	EpRAm	1988.87	EpDEm	1989.70
Num	10	Q RAmdeg	1.1	Q DEmdeg	0.8	Q pmRA	1.1
Q pmDE	0.9	BTmag	10.483	E BTmag	0.028	VTmag	9.368
E VTmag	0.016	Prox	999	TYC	T	HIP	103156
CCDM	AB	RAdeg	313.49647194	DEdeg	-61.96537417	EpRA 1990	1.56
EpDE 1990	1.67	E RAdeg	12.4	E DEdeg	10.9	Posflg	P
Corr	-0.1

SAO

SAO	254894	DelFlag		RA1950		PmRA1950	-0.0013
DE1950		PmDE1950	-0.047	Vmag	9.3	SpType	K0
Double code		Source	43	CatNum	6245	DM	CP-62 6184
DMcomp		BDsup		HD	198535	M HD	0
GC		RA1950rad	5.45365891	DE1950rad	-1.0848076	PmRA2000	-0.0022
PmDE2000	-0.05

Hipparcos

Catalog	H	HIP	103156	Proxy	H	RAhms	20 53 59.15
DEdms	-61 57 55.4	Vmag	9.24	VarFlag		R Vmag	H
RAdeg	313.496	DEdeg	-61.9654	AstroRef	A	Plx	0.75
CCDM	20540-6158	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	353	Rho	0.586	HD	198535	BD
CD		CP	CP-62 6184	Dm number	-62 6184	VIred	0.95
SpType	G8III	R SpType		Coord arcsec 2000	205359.15-615755.4

Hipparcos 2

HIP	103156	Sn	15	So	3	Nc	2
RArad	5.4715457054	DErad	-1.0814999342	Plx	0.36	PmRA	7.94
PmDE	-24.88	E RArad	0.81	E DErad	0.77	E Plx	1.25
E pmRA	0.94	E pmDE	1.13	Hpmag	9.4085	E Hpmag	0.0023
SHp	0.024	VA	0	BV	0.957	E BV	0.023
VI	0.94

CCDM

Ccdm	20540-6158	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.84	DDEs	4.4
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	9.5	Sp	G8	PmNote	*
PmRA	8	PmDE	-25	Dm number	-62 6184	Cat1	CPD
Name2	254894	Cat2	SAO	HD	198535	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	103156

20540-6158 B

Componente originario normalizzato	AB		Coord arcsec 2000	205359.14-615754.8		Mag	11.28		Calc delta mag	1.68
Calc coord	yes

CCDM

Ccdm	20540-6158	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-0.85	DDEs	5.0
R dRAs	82	Year	1991	Theta	353	Rho	0.6
Obs	1	Vmag	12.3	Sp		PmNote	*
PmRA	8	PmDE	-25	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	103156