21218-3014 UC 4457

21^h 21^m 45.09^s -30° 13' 42.8" P.A. 240.00 sep 34.7 mag 11.54,14.52

Coord 2000	21218-3014	Discov num	UC 4457	Comp		Coord arcsec 2000	21 21 45.09 -30 13 42.8
Date first	1999	Date last	2016	Obs	6
Pa first	240	Pa last	239.5	P.A. Now (θ)	239.5°
Sep first	34.7	Sep last	34.678	Sep. Now (ρ)	34.678"
Mag pri	11.54	Mag sec	14.52	delta mag (ΔM)	2.98	Spectral class
Pri motion ra	+079	Sec motion ra	+081
Pri motion dec	+017	Sec motion dec	+018
Notes	V (Proper motion indicates physical)

rPM=0.027 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Microscopium

Tycho2

7473-00871-1

Gaia DR2

6784663565800898048

WDS 21218-3014 UC 4457 : 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
21218-3014	UC 4457		1999	2	240	34.7	11.50	14.50		V	212145.09-301342.8
21218-3014	UC 4457		2000	2	240	34.7	11.50	14.50		V	212145.09-301342.8
21218-3014	UC 4457		2010	3	240	34.7	11.54	14.52		V	212145.09-301342.8
21218-3014	UC 4457		2015	4	240	34.6	11.54	14.52		V	212145.09-301342.8
21218-3014	UC 4457		2016	6	240	34.7	11.54	14.52		V	212145.09-301342.8

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

WDS 21218-3014 UC 4457 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21218-3014 UC 4457 : MEASURES

No records found.

WDS 21218-3014 : VIRTUAL EYEPIECE

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

WDS 21218-3014 : ALADIN DSS IMAGE @ 21^h 21^m 45.09^s -30° 13' 42.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21218-3014 UC 4457 : 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		21218-3014	UC 4457		240	34.7
Show		21192-3018	RST2176	AB	246	0.8	34
Show		21192-3018	WIS 348	AC	239	171.8	34
Show		21209-3054	HJ 5263		93	27.9	42
Show		21254-3037	HJ 3025		282	32.4	53
Show		21205-2920	LDS5921		91	313.7	56
Show		21212-2914	FIN 6		209	1.2	61
Show		21181-2931	LDS 738	AB	182	27.4	65
Show		21181-2931	LDS 738	Aa,Ab	101	4.8	65
Show		21247-3106	HJ 5266		256	10.7	66
Show		21265-3111	TOK 372		138	0.1	85
Show		21214-3140	UC 4455		283	11.4	87
Show		21288-2955	RST2178		229	2.6	94
Show		21291-3011	RST2179		344	2.2	96
Show		21150-3059	RSS 557		339	55.4	98
Show		21145-3045	RSS 556		24	11.8	99
Show		21146-2935	B 2492			7.2	102
Show		21149-2921	HDS3022		18	0.4	104
Show		21140-2940	MET 91		161	1.9	106
Show		21194-2831	B 523		212	0.8	108
Show		21251-2831	LDS5923		208	33.3	112
Show		21266-2839	TDT2970		278	0.6	115
Show		21247-3202	JSP 824	AB	198	1.7	116
Show		21304-3045	UC 4480		124	22.3	116
Show		21169-2836	DAW 154		88	1.1	117
Show		21140-2914	RST2173		11	1.3	117
Show		21212-3212	NSN 492		320	9.3	119
Show		21154-2842	LDS4874		34	22.5	123
Show		21137-3121	BRT3097	AB	124	3.4	124
Show		21307-3057	RSS 561	AB	98	5.3	125
Show		21307-3057	TOK 636	AC	125	930.0	125
Show		21146-2849	LDS4872		276	62.7	126
Show		21121-3035	BU 251		232	1.8	127
Show		21238-3219	LDS5922		284	201.1	129
Show		21231-2806	HDS3047		103	0.1	129
Show		21191-3221	SKF2098		27	100.8	133
Show		21291-3148	LDS5924		300	108.4	134
Show		21196-3226	I 1605		298	1.7	136
Show		21111-3041	HJ 5248		319	5.3	141
Show		21131-2850	BRT3096		93	4.3	141
Show		21256-3227	JSP 825		279	2.0	143
Show		21328-3017	JSP 826		354	4.0	144
Show		21273-3218	B 1007		343	0.1	144
Show		21273-3222	HWE 90		280	1.3	147
Show		21161-2802	LDS5920		15	52.4	150
Show		21212-2744	HDS3040		65	0.3	151
Show		21314-3146	SKF2099		259	23.1	155
Show		21157-2803	BRT3099		298	4.4	157
Show		21111-2858	HU 85		141	2.9	159
Show		21342-3013	LDS5925		272	94.6	163
Show		21166-2746	BRT3100		168	7.1	163

WDS 21218-3014 : COMPONENTS

	A
B	pa=235.7° sep=31.24"

21218-3014 A

Componente originario normalizzato	AB		Coord arcsec 2000	212145.09-301342.8		Mag	11.54		PmRA	79.00
PmDE	17.0		Tycho2	7473-00871-1

Tycho2

Tycho2	7473-00871-1	Pflag		RAmdeg	320.43785764	DEmdeg	-30.22857940
PmRA	77.2	PmDE	9.9	E RAmdeg	76	E DEmdeg	90
E pmRA	3.1	E pmDE	3.0	EpRAm	1983.52	EpDEm	1977.49
Num	3	Q RAmdeg	0.7	Q DEmdeg	0.1	Q pmRA	0.7
Q pmDE	0.1	BTmag	12.472	E BTmag	0.227	VTmag	11.706
E VTmag	0.160	Prox	999	TYC		HIP
CCDM		RAdeg	320.43765444	DEdeg	-30.22860167	EpRA 1990	1.82
EpDE 1990	1.85	E RAdeg	80.4	E DEdeg	99.6	Posflg
Corr	0.0

21218-3014 B

Componente originario normalizzato	AB		Coord arcsec 2000	212143.10-301400.4		Mag	14.52		PmRA	81.00
PmDE	18.0		Calc delta mag	2.98		Calc coord	yes