20404-3251 SHY 781 (HD 196746)

20^h 40^m 25.77^s -32° 51' 06.4" P.A. 310.00 sep 999.9 mag 8.55,9.01 Sp G2V+F5V dist. 96.99 pc (316.38 l.y.)

Coord 2000	20404-3251	Discov num	SHY 781	Comp		Coord arcsec 2000	20 40 25.77 -32 51 06.4
Date first	1991	Date last	2016	Obs	5
Pa first	310	Pa last	310	P.A. Now (θ)	310°
Sep first	999.9	Sep last	3622.8	Sep. Now (ρ)	3622.8"
Mag pri	8.55	Mag sec	9.01	delta mag (ΔM)	0.46	Spectral class	G2V+F5V (yellow/yellow-white)
Pri motion ra	-029	Sec motion ra	-029
Pri motion dec	+031	Sec motion dec	+043
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.231 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 196746	Constellation	Microscopium	HIP	102021	Tycho2	7460-01220-1
Gaia DR2	6792307439358747136	HD	196746	CD	CD-3315120	CP	CP-33 5923
Distance	96.99	Distance ly	316.38

WDS 20404-3251 SHY 781 (HD 196746) : NOTES

discov_num	notes	refcode
SHY 781	HIP 102021 + HIP 101693.

REFERENCES

refcode	metd	author	reference
Shy2011	-	Shaya, E.J. & Olling, R.	2011ApJS..192....2S
Shy2011		ApJS 192, 2, 2011
Shy2011		(Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011		added to WDS only if probability 90% or greater.)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20404-3251	SHY 781		1998	3	310	999.9	8.55	9.01	G2V F5V	NVD	204025.77-325106.4
20404-3251	SHY 781		1999	4	310	999.9	8.55	9.01	G2V F5V	NVD	204025.77-325106.4
20404-3251	SHY 781		2016	5	310	999.9	8.55	9.01	G2V+F5V	NV	204025.77-325106.4

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

WDS 20404-3251 SHY 781 (HD 196746) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20404-3251 SHY 781 (HD 196746) : MEASURES

No records found.

WDS 20404-3251 (HD 196746) : VIRTUAL EYEPIECE

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WDS 20404-3251 (HD 196746) : ALADIN DSS IMAGE @ 20^h 40^m 25.77^s -32° 51' 06.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20404-3251 SHY 781 (HD 196746) : 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		20404-3251	SHY 781		310	999.9
Show		20392-3304	RST2148		31	1.1	21
Show		20452-3120	LDS 720	BC	128	1.8	31
Show		20379-3248	BRT1810		204	7.3	33
Show		20411-3327	B 993	BC	40	0.4	37
Show		20411-3327	SEE 424	A,BC	335	11.2	37
Show		20431-3305	UC 4268			40.3	37
Show		20374-3312	SKF2088		135	13.2	45
Show		20366-3308	RST2146		245	1.9	52
Show		20362-3301	LDS 715		144	91.8	57
Show		20451-3221	KPP3118	Aa,Ab	16	1.6	67
Show		20451-3221	LDS5910		355	283.9	67
Show		20351-3330	BRT1809		154	3.0	78
Show		20440-3147	JSP 816		132	3.3	79
Show		20467-3245	RST2160		138	0.5	80
Show		20337-3255	TDT2374		131	3.0	85
Show		20338-3313	RSS 552		29	6.7	87
Show		20467-3336	HDS2960	AB	158	0.2	91
Show		20467-3336	SKF2090	AC	190	88.1	91
Show		20478-3255	WIS 343		9	525.5	94
Show		20347-3152	RST2145		255	0.1	94
Show		20380-3122	B 992		247	1.3	95
Show		20365-3413	RST3264		99	2.7	96
Show		20348-3355	HJ 5207		257	10.5	96
Show		20329-3227	UC 4214		142	15.2	98
Show		20330-3336	TDT2362		146	0.5	104
Show		20372-3114	HDS2943		75	2.1	106
Show		20353-3126	LDS5908		124	248.3	107
Show		20452-3122	WOR 40		168	4.8	108
Show		20452-3120	LDS 720	AB	213	999.9	109
Show		20345-3131	KPP1926		56	15.1	111
Show		20448-3112	TDT2516		60	0.6	114
Show		20390-3445	BRT1811		277	2.4	115
Show		20314-3335	NSN 493		182	11.8	122
Show		20452-3057	JSP 817	CD	75	2.2	122
Show		20479-3132	B 995		288	0.5	124
Show		20501-3315	UC 4305		302	143.4	124
Show		20347-3435	TDT2390		225	0.4	127
Show		20452-3057	FAL 70	AB	76	17.5	130
Show		20452-3057	TOK 340	AC	235	539.4	130
Show		20458-3443	HJ 5219		323	8.5	132
Show		20327-3123	HJ 5206		192	16.4	132
Show		20500-3347	HJ 5224		165	20.2	132
Show		20510-3256	RST2162		76	0.8	133
Show		20485-3126	B 996		321	1.6	133
Show		20517-3303	UC 4311		335	26.1	143
Show		20424-3031	H N 101	AB	334	25.9	143
Show		20437-3509	KPP 941		156	7.7	144
Show		20326-3107	PRO 230		104	6.5	145
Show		20362-3506	SKF1246		169	21.8	145
Show		20291-3327	RST2142		327	1.9	147

WDS 20404-3251 : COMPONENTS

	A
B	pa=315.0° sep=3301.15"

20404-3251 A

Componente originario normalizzato	AB	Name	HD 196746	Coord arcsec 2000	204025.77-325106.4	Mag	8.55
Spectral class	G2V (yellow)	PmRA	-29.00	PmDE	31.0	HIP	102021
Tycho2	7460-01220-1	HD	196746	CD	CD-3315120	CP	CP-33 5923

Tycho2

Tycho2	7460-01220-1	Pflag		RAmdeg	310.10728612	DEmdeg	-32.85169039
PmRA	-23.7	PmDE	36.2	E RAmdeg	8	E DEmdeg	10
E pmRA	1.5	E pmDE	1.5	EpRAm	1990.78	EpDEm	1990.08
Num	7	Q RAmdeg	1.4	Q DEmdeg	1.6	Q pmRA	1.4
Q pmDE	1.7	BTmag	9.244	E BTmag	0.020	VTmag	8.545
E VTmag	0.015	Prox	999	TYC	T	HIP	102021
CCDM		RAdeg	310.10735139	DEdeg	-32.85177583	EpRA 1990	1.66
EpDE 1990	1.43	E RAdeg	7.5	E DEdeg	9.7	Posflg
Corr	-0.3

Hipparcos

Catalog	H	HIP	102021	Proxy		RAhms	20 40 25.77
DEdms	-32 51 06.4	Vmag	8.48	VarFlag		R Vmag	H
RAdeg	310.107	DEdeg	-32.8518	AstroRef		Plx	10.01
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag	G	Source		Qual		M HIP
Theta		Rho		HD	196746	BD
CD	CD-3315120	CP	CP-33 5923	Dm number	-3315120	VIred	0.72
SpType	G2V	R SpType		Coord arcsec 2000	204025.77-325106.4

Hipparcos 2

HIP	102021	Sn	5	So	1	Nc	1
RArad	5.4123944783	DErad	-0.5733716337	Plx	10.31	PmRA	-25.69
PmDE	34.67	E RArad	0.94	E DErad	0.65	E Plx	1.03
E pmRA	1.25	E pmDE	0.96	Hpmag	8.6069	E Hpmag	0.0022
SHp	0.014	VA	0	BV	0.626	E BV	0.017
VI	0.69

20404-3251 B

Componente originario normalizzato	AB		Coord arcsec 2000	203720.75-321217.7		Mag	9.01		Spectral class	F5V (yellow-white)
PmRA	-29.00		PmDE	43.0		Calc delta mag	0.46		Calc coord	yes