20211-6105 UC 4157

20^h 21^m 07.35^s -61° 04' 57.8" P.A. 22.00 sep 34.1 mag 11.58,12.31

Coord 2000	20211-6105	Discov num	UC 4157	Comp		Coord arcsec 2000	20 21 07.35 -61 04 57.8
Date first	1925	Date last	2016	Obs	7
Pa first	23	Pa last	21.7	P.A. Now (θ)	21.7°
Sep first	33.3	Sep last	34.075	Sep. Now (ρ)	34.075"
Mag pri	11.58	Mag sec	12.31	delta mag (ΔM)	0.73	Spectral class
Pri motion ra	+057	Sec motion ra	+058
Pri motion dec	-041	Sec motion dec	-044
Notes	V (Proper motion indicates physical)

rPM=0.043 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Pavo

Tycho2

9087-00839-1

Gaia DR2

6431097322510142720

WDS 20211-6105 UC 4157 : 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
20211-6105	UC 4157		2000	2	22	34.1	11.60	12.30		V	202107.35-610457.8
20211-6105	UC 4157		2010	4	22	34.1	11.58	12.31		V	202107.35-610457.8
20211-6105	UC 4157		2015	5	22	34.1	11.58	12.31		V	202107.35-610457.8
20211-6105	UC 4157		2016	7	22	34.1	11.58	12.31		V	202107.35-610457.8

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

WDS 20211-6105 UC 4157 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20211-6105 UC 4157 : MEASURES

No records found.

WDS 20211-6105 : VIRTUAL EYEPIECE

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

WDS 20211-6105 : ALADIN DSS IMAGE @ 20^h 21^m 07.35^s -61° 04' 57.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20211-6105 UC 4157 : 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		20211-6105	UC 4157		22	34.1
Show		20127-6026	UC 4122		15	37.2	74
Show		20161-6210	I 411		273	0.8	75
Show		20099-6059	JSP 810		146	2.7	82
Show		20267-6224	TDT2278		224	0.9	89
Show		20122-6004	KPP 462		232	3.3	90
Show		20289-5951	RSS 550		27	13.7	94
Show		20200-5929	TDT2177		261	1.9	96
Show		20286-6225	HJ 5196		275	18.5	98
Show		20163-5935	KPP2568		303	23.2	98
Show		20293-6225	BAU9004		85	25.4	100
Show		20289-6228	HJ 5197		272	61.2	100
Show		20241-6245	UC 4167		328	90.2	103
Show		20351-6042	RST4670		213	0.2	105
Show		20232-6249	NSN 445		192	2.0	105
Show		20088-6203	UC 4102		155	73.6	106
Show		20092-6210	HU 1611	AB	290	1.5	108
Show		20071-6141	TDT1994		34	3.5	108
Show		20333-6006	KPP1094		210	8.7	108
Show		20356-6038	UC 4226		150	26.3	110
Show		20088-6001	I 1120	AB	68	6.0	111
Show		20088-6001	UC 4101	AC	184	84.7	111
Show		20355-6151	KPP1026		238	8.2	113
Show		20327-6225	TDT2354		303	1.4	115
Show		20293-5924	UC 4198		18	38.7	119
Show		20330-6230	FAL 68		312	9.0	120
Show		20379-6038	EGN 25	Ba,Bb	165	0.4	126
Show		20379-6038	MUG 4	AB	175	10.8	126
Show		20379-6038	TOK 630	AC	52	743.3	126
Show		20270-6303	RST1069		115	0.4	126
Show		20280-5906	LDS 712		139	9.9	130
Show		20363-6219	TDT2412		18	0.6	131
Show		20039-6026	KPP2309		178	19.5	132
Show		20300-6305	KPP4202		65	2.1	135
Show		20360-6237	KPP3073		58	13.7	140
Show		20403-6132	TDT2462		83	2.2	142
Show		20206-5844	HJ 5185	AB	60	18.7	142
Show		20170-5839	HDS2892		356	0.1	149
Show		20115-5854	UC 4116		105	10.7	150
Show		20203-5825	KPP 469		95	3.9	161
Show		20051-6304	HJ 5163		249	1.3	164
Show		20037-5925	UC 4072		67	42.0	164
Show		20347-6319	HU 1615		287	0.2	165
Show		20118-6337	RST5153	AB	331	0.3	166
Show		20118-6337	HJ 5167	AB,C	33	7.3	166
Show		20355-5850	KPP1799		124	13.9	173
Show		20278-6357	UC 4191	AB	214	28.3	179
Show		20266-5806	TDT2277		213	0.4	184
Show		20246-5802	TDT2246		214	0.5	185
Show		20227-6411	B 988		68	1.8	187
Show		20209-5755	NSN 450		166	2.7	190

WDS 20211-6105 : COMPONENTS

	A
B	pa=10.9° sep=32.24"

20211-6105 A

Componente originario normalizzato	AB		Coord arcsec 2000	202107.35-610457.8		Mag	11.58		PmRA	57.00
PmDE	-41.0		Tycho2	9087-00839-1

Tycho2

Tycho2	9087-00839-1	Pflag		RAmdeg	305.28056914	DEmdeg	-61.08273569
PmRA	54.1	PmDE	-50.5	E RAmdeg	66	E DEmdeg	58
E pmRA	6.8	E pmDE	6.3	EpRAm	1990.14	EpDEm	1990.38
Num	2	Q RAmdeg		Q DEmdeg		Q pmRA
Q pmDE		BTmag	12.839	E BTmag	0.200	VTmag	11.631
E VTmag	0.098	Prox	999	TYC		HIP
CCDM		RAdeg	305.28030833	DEdeg	-61.08261972	EpRA 1990	1.61
EpDE 1990	1.72	E RAdeg	66.8	E DEdeg	59.3	Posflg
Corr	0.0

20211-6105 B

Componente originario normalizzato	AB		Coord arcsec 2000	202108.19-610426.1		Mag	12.31		PmRA	58.00
PmDE	-44.0		Calc delta mag	0.73		Calc coord	yes