21308-2055 UC 4481

21^h 30^m 48.14^s -20° 54' 53.0" P.A. 306.00 sep 15.7 mag 13.20,13.70

Coord 2000	21308-2055	Discov num	UC 4481	Comp		Coord arcsec 2000	21 30 48.14 -20 54 53.0
Date first	1998	Date last	2016	Obs	7
Pa first	306	Pa last	306.4	P.A. Now (θ)	306.4°
Sep first	15.7	Sep last	15.689	Sep. Now (ρ)	15.689"
Mag pri	13.20	Mag sec	13.70	delta mag (ΔM)	0.5	Spectral class
Pri motion ra	+017	Sec motion ra	+014
Pri motion dec	+051	Sec motion dec	+056
Notes	V R (Proper motion indicates physical, Red magnitudes)

rPM=0.101 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Capricornus

Gaia DR2

6830021680325610496

WDS 21308-2055 UC 4481 : 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
21308-2055	UC 4481		1999	2	306	15.7	13.20	13.70		V	213048.14-205453.0
21308-2055	UC 4481		2000	2	307	15.7	13.20	13.70		V	213048.14-205453.0
21308-2055	UC 4481		2010	4	306	15.6	13.20	13.70		V R	213048.14-205453.0
21308-2055	UC 4481		2015	5	306	15.8	13.20	13.70		V R	213048.14-205453.0
21308-2055	UC 4481		2016	7	306	15.7	13.20	13.70		V R	213048.14-205453.0

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

WDS 21308-2055 UC 4481 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21308-2055 UC 4481 : MEASURES

No records found.

WDS 21308-2055 : VIRTUAL EYEPIECE

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

WDS 21308-2055 : ALADIN DSS IMAGE @ 21^h 30^m 48.14^s -20° 54' 53.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21308-2055 UC 4481 : 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		21308-2055	UC 4481		306	15.7
Show		21324-2058	LDS6354		219	56.1	23
Show		21275-2016	BU 683		194	2.9	61
Show		21282-2144	EGN 26		205	6.2	61
Show		21264-2025	HLD 166	AB	68	2.8	68
Show		21264-2025	HWE 56	AC	160	5.1	68
Show		21308-2204	OL 76		346	2.4	69
Show		21337-2158	HDS3068		80	0.5	75
Show		21314-2217	HJ 3030		114	9.4	82
Show		21291-1932	RST3286		3	1.6	86
Show		21336-2216	ARA1941		9	12.1	90
Show		21270-2208	ALD 16		300	3.5	91
Show		21342-2215	DON1011		304	0.7	94
Show		21376-2026	YSC 119		232	0.4	100
Show		21314-1914	SEE 449	AB	179	2.2	102
Show		21384-2058	ARA1586		43	11.7	107
Show		21267-2225	SEE 446	AB	14	16.3	107
Show		21267-2225	SZM 3	AC	76	85.0	107
Show		21278-1911	OCC 58		-1	0.1	113
Show		21242-1948	HU 1312	AB	86	2.6	115
Show		21282-1906	HJ 3029		352	19.0	115
Show		21297-2251	LDS4889		289	1.7	117
Show		21353-1915	OCC 70		-1	0.1	119
Show		21371-1928	H 6 6	AB	46	65.8	124
Show		21371-1928	BU 9024	AC	164	62.7	124
Show		21226-1957	BHA 45		203	4.3	128
Show		21238-2227	TDT2943		226	0.4	134
Show		21403-2137	KPP1262		176	9.7	140
Show		21250-2250	UC 4466		200	56.3	141
Show		21212-2138	KPP1448		333	10.9	142
Show		21332-1836	BRT1568		132	5.7	143
Show		21285-1836	ARA 810		219	15.9	143
Show		21380-1913	LDS 751		355	18.9	144
Show		21345-1841	UC 4499	AB	293	18.7	144
Show		21345-1841	JNN 326	Aa,Ab	270	0.3	144
Show		21410-2038	ARA1587		208	11.5	145
Show		21355-1846	I 380	AB	354	1.2	145
Show		21355-1846	I 380	AC	69	42.5	145
Show		21220-2224	HJ 5265		190	32.3	152
Show		21209-1953	SKF 928		47	14.0	153
Show		21395-1913	HJ 3043		150	34.8	160
Show		21270-1824	OCC 747		-1	0.1	161
Show		21194-2038	I 1439		194	0.2	162
Show		21199-2000	BHA 44		129	3.9	164
Show		21261-2325	HJ 5269		342	8.2	164
Show		21247-1835	HJ 3024		73	14.5	164
Show		21429-2119	TDT3120		281	0.9	172
Show		21402-2245	UC 4522		214	11.3	172
Show		21430-2025	SEE 456		59	3.3	174
Show		21415-2228	UC 4527		41	61.6	176
Show		21180-2115	HJ 3017		199	17.4	181

WDS 21308-2055 : COMPONENTS

	A
B	pa=308.3° sep=15.03"

21308-2055 A

Componente originario normalizzato	AB		Coord arcsec 2000	213048.14-205453.0		Mag	13.2		PmRA	17.00
PmDE	51.0

21308-2055 B

Componente originario normalizzato	AB		Coord arcsec 2000	213047.30-205443.7		Mag	13.7		PmRA	14.00
PmDE	56.0		Calc delta mag	0.5		Calc coord	yes