20561-4213 UC 4335

20^h 56^m 03.13^s -42° 13' 22.3" P.A. 196.00 sep 30.8 mag 10.65,14.55

Coord 2000	20561-4213	Discov num	UC 4335	Comp		Coord arcsec 2000	20 56 03.13 -42 13 22.3
Date first	1998	Date last	2016	Obs	6
Pa first	196	Pa last	196	P.A. Now (θ)	196°
Sep first	30.8	Sep last	30.82	Sep. Now (ρ)	30.82"
Mag pri	10.65	Mag sec	14.55	delta mag (ΔM)	3.9	Spectral class
Pri motion ra	+008	Sec motion ra	+004
Pri motion dec	-067	Sec motion dec	-069
Notes	V (Proper motion indicates physical)

rPM=0.065 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Microscopium

Tycho2

7972-00875-1

Gaia DR2

6677313366496784768

WDS 20561-4213 UC 4335 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
UC		USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4)	...................
UC_2013a	Eu j	Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G.,	2013AJ....145...44Z
UC_2013a		& Zacharias, M.I. (UCAC4 Catalog)
UC_2013a		AJ 145, 44, 2013
UC_2013b	Eu j	Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D.	2013AJ....146...76H
UC_2013b		AJ 146, 76, 2013 (UC 301 - 5058)
UC_2013b		(Relative astrometry is derived from individual measurements, not precessed means.
UC_2013b		UCAC aperture magnitudes are listed, unless the duplicity flag indicates a blended
UC_2013b		image (a flag value of 30 or higher). Model fit magnitudes are given for both
UC_2013b		components if either has such a flag. Model fit magnitudes are indicated by the
UC_2013b		letter "f" following the filter information.
UC_2013b		APASS photometry extracted from UCAC4 catalog is listed under reference AAV2012.
UC_2013b		Due to aperture method used, APASS photometry is only included for pairs wider
UC_2013b		than 10" (Henden, private comm.) Photometry for pairs wider than 10" which showed
UC_2013b		identical values for both components in all filters were removed, as well.
UC_2015	Eu -	Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C.,	2015AJ....150..101Z
UC_2015		DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C.,
UC_2015		Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G.
UC_2015		AJ 150, 101, 2015
UC_9999	Eu -	temporary UCAC files	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20561-4213	UC 4335		1999	2	196	30.9	10.60	14.50		V	205603.13-421322.3
20561-4213	UC 4335		2000	2	196	30.8	10.60	14.50		V	205603.13-421322.3
20561-4213	UC 4335		2010	3	196	30.8	10.65	14.55		V	205603.13-421322.3
20561-4213	UC 4335		2015	4	196	30.8	10.65	14.55		V	205603.13-421322.3
20561-4213	UC 4335		2016	6	196	30.8	10.65	14.55		V	205603.13-421322.3

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

WDS 20561-4213 UC 4335 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20561-4213 UC 4335 : MEASURES

No records found.

WDS 20561-4213 : VIRTUAL EYEPIECE

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WDS 20561-4213 : ALADIN DSS IMAGE @ 20^h 56^m 03.13^s -42° 13' 22.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20561-4213 UC 4335 : 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		20561-4213	UC 4335		196	30.8
Show		20556-4204	BRT1116		138	4.5	11
Show		20536-4153	BRT1115		339	3.5	34
Show		20552-4139	UC 4327		96	77.2	36
Show		20573-4136	UC 4343		265	17.3	41
Show		21009-4132	WIS 346		6	999.9	69
Show		21015-4246	NSN 455		189	2.5	69
Show		20552-4104	UC 4326		242	36.5	70
Show		21008-4123	B 513		29	3.8	74
Show		21028-4206	TDT2712		309	0.7	76
Show		21007-4111	I 1049		346	1.3	82
Show		21022-4300	DUN 236		73	57.4	83
Show		20517-4054	HJ 5228		104	32.5	93
Show		21043-4233	DON 999		263	4.6	94
Show		20583-4345	I 1048		137	1.6	96
Show		21050-4214	UC 4372		12	13.9	100
Show		21050-4203	CPO 619		252	5.6	101
Show		20578-4402	DON 995		252	2.0	110
Show		21064-4123	SEE 437	AB	54	43.8	127
Show		21064-4123	SEE 437	AC	88	127.8	127
Show		21038-4041	RSS 37		318	50.5	127
Show		20487-4359	DON 993	AB	332	12.2	133
Show		20487-4359	HJ 5222	AC	271	28.6	133
Show		20555-4426	I 1430		29	1.4	133
Show		20485-4359	DON 992		291	5.2	135
Show		20523-4000	SKF1097		2	9.6	141
Show		20561-3953	SKF1098		225	6.9	141
Show		21050-4357	UC 4373		126	45.6	143
Show		21011-4426	HJ 5238		192	36.9	143
Show		21086-4245	SYU 12		224	0.2	143
Show		20492-4012	TSN 194		187	0.0	145
Show		21008-4429	TDT2693		106	1.8	146
Show		20571-4439	LDS 729		106	220.3	147
Show		21017-4431	TOK 800		210	0.5	152
Show		21090-4126	UC 4390		217	35.3	152
Show		20568-4452	HDS2984		239	0.8	159
Show		21099-4304	UC 4395		141	61.2	161
Show		21090-4058	CRU9016	AB	82	117.7	164
Show		21090-4058	CRU9016	AC	24	137.2	164
Show		20417-4253	TDT2475		303	1.0	164
Show		20501-3943	R 326		293	40.3	166
Show		20409-4224	HJ 5211	AB	299	20.0	169
Show		20409-4224	I 1121	BC	243	9.3	169
Show		20452-4017	CRU9013	AB	101	70.2	169
Show		20452-4017	DAM 815	AC	180	19.5	169
Show		21065-4012	WG 265		64	10.0	170
Show		21091-4047	CPO 620	AB	347	20.1	170
Show		21114-4215	TSN 97		227	56.4	171
Show		21104-4114	ARU 3		142	0.2	172
Show		20441-4412	KPP1048	AB	183	8.4	177
Show		20563-3916	TDT2646		242	1.6	178

WDS 20561-4213 : COMPONENTS

	A
B	pa=192.0° sep=30.29"

20561-4213 A

Componente originario normalizzato	AB		Coord arcsec 2000	205603.13-421322.3		Mag	10.65		PmRA	8.00
PmDE	-67.0		Tycho2	7972-00875-1

Tycho2

Tycho2	7972-00875-1	Pflag		RAmdeg	314.01306103	DEmdeg	-42.22288150
PmRA	10.0	PmDE	-68.5	E RAmdeg	36	E DEmdeg	45
E pmRA	2.1	E pmDE	2.0	EpRAm	1988.39	EpDEm	1985.49
Num	3	Q RAmdeg	0.4	Q DEmdeg	0.1	Q pmRA	0.4
Q pmDE	0.1	BTmag	11.877	E BTmag	0.087	VTmag	10.818
E VTmag	0.059	Prox	999	TYC	T	HIP
CCDM		RAdeg	314.01303000	DEdeg	-42.22272167	EpRA 1990	1.77
EpDE 1990	1.61	E RAdeg	37.3	E DEdeg	47.4	Posflg
Corr	-0.2

20561-4213 B

Componente originario normalizzato	AB		Coord arcsec 2000	205602.56-421351.9		Mag	14.55		PmRA	4.00
PmDE	-69.0		Calc delta mag	3.9		Calc coord	yes