20508-7059 HDS 2973 (HD 197828)

20^h 50^m 50.55^s -70° 59' 02.9" P.A. 70.00 sep 0.7 mag 8.53,9.61 Sp A5V dist. 221.73 pc (723.28 l.y.)

Coord 2000	20508-7059	Discov num	HDS2973	Comp		Coord arcsec 2000	20 50 50.55 -70 59 02.9
Date first	1991	Date last	2014	Obs	3
Pa first	71	Pa last	69.6	P.A. Now (θ)	69.6°
Sep first	0.6	Sep last	0.683	Sep. Now (ρ)	0.683"
Mag pri	8.53	Mag sec	9.61	delta mag (ΔM)	1.08	Spectral class	A5V (white)
Pri motion ra	+018	Sec motion ra	+018
Pri motion dec	-016	Sec motion dec	-016
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 197828	Constellation	Pavo	SAO	257858	HIP	102905
Tycho2	9325-00480-1	Gaia DR2	6375207424185567488	HD	197828	CP	CP-71 2575
Distance	221.73	Distance ly	723.28

WDS 20508-7059 HDS 2973 (HD 197828) : 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
20508-7059	HDS2973		1991	2	68	0.4	8.53	9.61	A5V	D	205050.55-705902.9
20508-7059	HDS2973		2014	3	70	0.7	8.53	9.61	A5V		205050.55-705902.9

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

WDS 20508-7059 HDS 2973 (HD 197828) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20508-7059 HDS 2973 (HD 197828) : MEASURES

No records found.

WDS 20508-7059 (HD 197828) : VIRTUAL EYEPIECE

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WDS 20508-7059 (HD 197828) : ALADIN DSS IMAGE @ 20^h 50^m 50.55^s -70° 59' 02.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20508-7059 HDS 2973 (HD 197828) : NEIGHBORHOODS

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

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20508-7059	HDS2973		70	0.7
Show		20472-7056	TDS1100		233	0.9	19
Show		20553-7049	UC 4328		210	47.5	24
Show		20587-7025	I 668	BC	333	1.0	52
Show		20587-7025	HJ 5231	A,BC	112	6.7	52
Show		21015-7128	UC 4362		243	29.9	60
Show		20429-7151	TDT2494		3	0.5	65
Show		20452-7159	HEI 281		89	2.6	66
Show		20366-7104	DUN 231		285	48.8	70
Show		20468-6948	KPP1680		64	12.9	75
Show		20578-7217	B 1389		28	3.2	85
Show		20434-7218	TDT2498		13	0.8	87
Show		20330-7119	I 1047	CD	55	22.8	87
Show		20330-7119	I 1047	AB	331	6.2	89
Show		20330-7119	HJ 5544	AC	62	118.7	89
Show		20349-7017	TDT2395		295	2.8	90
Show		20451-7226	RSS 553		304	18.3	92
Show		20594-6936	UC 4352		355	33.2	94
Show		20356-6949	TDT2402		166	0.6	105
Show		20338-7212	UC 4216		279	18.6	109
Show		20368-6934	TDT2422		308	0.9	111
Show		20548-7248	TOI2193		124	1.9	111
Show		20449-6904	BRT2017		6	4.1	120
Show		20452-6902	SKF 378		245	42.0	121
Show		21108-6946	HEI 282		86	0.3	124
Show		20442-7301	HEI 280		104	0.8	125
Show		20315-7228	TDT2337		100	0.5	128
Show		20390-7254	TDT2452		215	0.7	128
Show		20489-6847	SHY 782		107	999.9	132
Show		21084-6914	DON1000		197	1.1	139
Show		21062-7316	HJ 5237		274	5.9	155
Show		21059-6844	DON 998	AB	155	4.0	155
Show		21059-6844	BAU 65	AC	254	60.0	155
Show		21094-7310	I 379	AB	22	0.1	157
Show		21094-7310	HDO 305	AB,C	118	6.4	157
Show		21007-7338	HEI 590		257	0.4	166
Show		20549-6810	UC 4322		10	16.8	171
Show		20363-6822	TDT2413		169	0.8	175
Show		21086-7337	HEI 591		5	0.2	178
Show		20330-6822	HJ 5200	AB	135	12.1	183
Show		21042-7353	UC 4370		258	10.4	185
Show		20318-7343	TDT2340		340	0.5	186
Show		20366-7354	TDT2418		336	0.4	187
Show		20472-6749	DON 991		76	2.3	192
Show		21089-7353	GLI 268		243	5.6	192
Show		20560-6748	TDT2639		325	0.9	193
Show		20525-7412	TDT2596		164	0.8	194
Show		20559-6742	TDT2637		246	0.5	200
Show		21096-6754	LDS 732		179	4.2	210
Show		20432-6730	LDS 718		309	29.1	214
Show		21062-7426	UC 4380		83	72.7	218

WDS 20508-7059 : COMPONENTS

	A
B	pa=41.2° sep=0.32"

20508-7059 A

Componente originario normalizzato	AB	Name	HD 197828	Coord arcsec 2000	205050.55-705902.9	Mag	8.53
Spectral class	A5V (white)	PmRA	18.00	PmDE	-16.0	SAO	257858
HIP	102905	Tycho2	9325-00480-1	HD	197828	CP	CP-71 2575

Tycho2

Tycho2	9325-00480-1	Pflag		RAmdeg	312.71066402	DEmdeg	-70.98413085
PmRA	17.8	PmDE	-16.1	E RAmdeg	5	E DEmdeg	5
E pmRA	1.3	E pmDE	1.3	EpRAm	1991.30	EpDEm	1991.39
Num	9	Q RAmdeg	1.2	Q DEmdeg	1.0	Q pmRA	1.2
Q pmDE	1.1	BTmag	8.477	E BTmag	0.015	VTmag	8.241
E VTmag	0.012	Prox	999	TYC	T	HIP	102905
CCDM	AB	RAdeg	312.71053778	DEdeg	-70.98409389	EpRA 1990	1.71
EpDE 1990	1.79	E RAdeg	5.4	E DEdeg	4.9	Posflg	P
Corr	0.1

SAO

SAO	257858	DelFlag		RA1950		PmRA1950	-0.0006
DE1950		PmDE1950	-0.065	Vmag	8.2	SpType	G5
Double code		Source	61	CatNum	4457	DM	CP-71 2575
DMcomp		BDsup		HD	197828	M HD	0
GC		RA1950rad	5.43608637	DE1950rad	-1.24217254	PmRA2000	-0.0025
PmDE2000	-0.066

Hipparcos

Catalog	H	HIP	102905	Proxy	H	RAhms	20 50 50.52
DEdms	-70 59 02.7	Vmag	8.19	VarFlag		R Vmag	H
RAdeg	312.711	DEdeg	-70.9841	AstroRef	A	Plx	5.39
CCDM	20508-7059	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	71	Rho	0.637	HD	197828	BD
CD		CP	CP-71 2575	Dm number	-71 2575	VIred	0.2
SpType	A5V	R SpType		Coord arcsec 2000	205050.52-705902.7

Hipparcos 2

HIP	102905	Sn	15	So	3	Nc	2
RArad	5.4578280262	DErad	-1.2389061589	Plx	4.51	PmRA	19.22
PmDE	-16.58	E RArad	0.55	E DErad	0.56	E Plx	0.85
E pmRA	0.64	E pmDE	0.78	Hpmag	8.2604	E Hpmag	0.0015
SHp	0.017	VA	0	BV	0.212	E BV	0.012
VI	0.23

CCDM

Ccdm	20508-7059	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.55	DDEs	-2.9
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	8.4	Sp	A5	PmNote	*
PmRA	19	PmDE	-16	Dm number	-71 2575	Cat1	CPD
Name2	257858	Cat2	SAO	HD	197828	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	102905

20508-7059 B

Componente originario normalizzato	AB		Coord arcsec 2000	205050.59-705902.7		Mag	9.61		PmRA	18.00
PmDE	-16.0		Calc delta mag	1.08		Calc coord	yes

CCDM

Ccdm	20508-7059	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	2.68	DDEs	-2.7
R dRAs	82	Year	1991	Theta	71	Rho	0.6
Obs	1	Vmag	10.9	Sp		PmNote	*
PmRA	19	PmDE	-16	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	102905