20517-2112 UC 4310

20^h 51^m 44.72^s -21° 11' 46.1" P.A. 318.00 sep 18.7 mag 13.60,14.80

Coord 2000	20517-2112	Discov num	UC 4310	Comp		Coord arcsec 2000	20 51 44.72 -21 11 46.1
Date first	1998	Date last	2015	Obs	6
Pa first	319	Pa last	317.8	P.A. Now (θ)	317.8°
Sep first	19.0	Sep last	18.689	Sep. Now (ρ)	18.689"
Mag pri	13.60	Mag sec	14.80	delta mag (ΔM)	1.2	Spectral class
Pri motion ra	+051	Sec motion ra	+052
Pri motion dec	-001	Sec motion dec	-004
Notes	V R (Proper motion indicates physical, Red magnitudes)

rPM=0.061 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Capricornus

Gaia DR2

6856874988385896064

WDS 20517-2112 UC 4310 : 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
20517-2112	UC 4310		1999	2	319	18.9	13.60	14.80		V	205144.72-211146.1
20517-2112	UC 4310		2000	2	319	19.0	13.60	14.80		V	205144.72-211146.1
20517-2112	UC 4310		2010	4	319	19.0	13.60	14.80		V R	205144.72-211146.1
20517-2112	UC 4310		2015	5	318	18.6	13.60	14.80		V R	205144.72-211146.1

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

WDS 20517-2112 UC 4310 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20517-2112 UC 4310 : MEASURES

No records found.

WDS 20517-2112 : VIRTUAL EYEPIECE

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

WDS 20517-2112 : ALADIN DSS IMAGE @ 20^h 51^m 44.72^s -21° 11' 46.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20517-2112 UC 4310 : 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		20517-2112	UC 4310		318	18.7
Show		20498-2036	ARA1218		307	1.4	45
Show		20489-2037	HJ 2998	AB	140	6.0	53
Show		20489-2037	BU 1494	AC	135	92.5	53
Show		20527-2205	OCC9215		174	0.0	55
Show		20554-2048	ARA1585		138	16.2	58
Show		20531-2013	ARA1220		187	6.7	62
Show		20512-2010	BHA 41		64	4.5	63
Show		20474-2145	OCC 56		-1	0.1	69
Show		20485-2205	DON 994		85	0.6	70
Show		20487-2216	UC 4296		251	33.2	77
Show		20465-2141	B 500		124	1.5	79
Show		20462-2131	OCC9196		-1	0.0	81
Show		20573-2138	SEE 434	AB	149	4.3	82
Show		20573-2138	SHT 35	AC	273	49.1	82
Show		20560-2014	UC 4334		272	31.9	84
Show		20462-2145	HDS2957		236	0.4	85
Show		20458-2139	OCC 55		-1	0.1	88
Show		20460-2031	OCC9195		-1	0.0	91
Show		20493-1945	ALP 25		163	21.1	94
Show		20455-2148	UC 4281		280	7.8	95
Show		20448-2054	BU 674	AB	99	2.0	99
Show		20453-2024	HJ 2992		144	2.9	103
Show		20587-2204	ARA1936		266	10.4	110
Show		20594-2027	OCC 668		-1	0.0	117
Show		20580-2232	ARA1935		71	5.1	118
Show		21001-2051	UC 4357		274	35.0	119
Show		20438-2031	HJ 2990		308	19.6	120
Show		20598-2028	TOK 370			0.1	121
Show		20580-1948	DON 996		301	5.6	122
Show		20432-2049	CHR 222	AB	123	0.2	123
Show		20432-2049	CVR 8	AB,C	307	13.6	123
Show		20595-2212	ARA1937		124	11.5	124
Show		20446-2230	TDT2512		57	2.1	127
Show		20522-1904	I 667		342	2.7	128
Show		20473-2307	BRT1566		285	3.1	131
Show		20439-1958	BRT1565		221	4.1	132
Show		20526-2323	WHC 21		19	31.5	133
Show		20422-2122	ARA1584		1	11.7	134
Show		20440-2233	ARA1933		335	9.7	135
Show		20434-2218	HJ 2989		153	29.5	135
Show		20421-2117	B 1894		207	0.4	135
Show		20569-1913	ARA 804		71	17.0	140
Show		20509-1851	GWP3005		351	7.4	141
Show		21000-2242	OCC 692		-1	0.1	147
Show		20519-2344	RST3271		151	0.3	153
Show		20449-2311	SEE 427		132	3.7	153
Show		20430-1942	ARA1214		38	3.7	153
Show		20478-2334	HDO 161	AB	19	29.8	153
Show		20478-2334	HDO 161	AC	244	38.8	153
Show		20446-2311	OCC 91		-1	0.1	155

WDS 20517-2112 : COMPONENTS

	A
B	pa=319.8° sep=18.13"

20517-2112 A

Componente originario normalizzato	AB		Coord arcsec 2000	205144.72-211146.1		Mag	13.6		PmRA	51.00
PmDE	-1.0

20517-2112 B

Componente originario normalizzato	AB		Coord arcsec 2000	205143.88-211132.3		Mag	14.8		PmRA	52.00
PmDE	-4.0		Calc delta mag	1.2		Calc coord	yes