20455-2148 UC 4281

20^h 45^m 32.27^s -21° 48' 25.5" P.A. 280.00 sep 7.8 mag 11.70,16.20

Coord 2000	20455-2148	Discov num	UC 4281	Comp		Coord arcsec 2000	20 45 32.27 -21 48 25.5
Date first	1999	Date last	2016	Obs	5
Pa first	282	Pa last	280.4	P.A. Now (θ)	280.4°
Sep first	8.0	Sep last	7.82	Sep. Now (ρ)	7.82"
Mag pri	11.70	Mag sec	16.20	delta mag (ΔM)	4.5	Spectral class
Pri motion ra	-037	Sec motion ra	-047
Pri motion dec	-060	Sec motion dec	-051
Notes	V (Proper motion indicates physical)

rPM=0.191 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Capricornus

Gaia DR2

6855294406063785984

WDS 20455-2148 UC 4281 : 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
20455-2148	UC 4281		2000	2	281	7.8	11.70	16.20		V	204532.27-214825.5
20455-2148	UC 4281		2015	3	280	7.8	11.70	16.20		V	204532.27-214825.5
20455-2148	UC 4281		2016	5	280	7.8	11.70	16.20		V	204532.27-214825.5

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

WDS 20455-2148 UC 4281 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20455-2148 UC 4281 : MEASURES

No records found.

WDS 20455-2148 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20455-2148 : ALADIN DSS IMAGE @ 20^h 45^m 32.27^s -21° 48' 25.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20455-2148 UC 4281 : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20455-2148	UC 4281		280	7.8
Show		20462-2145	HDS2957		236	0.4	10
Show		20458-2139	OCC 55		-1	0.1	11
Show		20465-2141	B 500		124	1.5	16
Show		20462-2131	OCC9196		-1	0.0	20
Show		20474-2145	OCC 56		-1	0.1	27
Show		20434-2218	HJ 2989		153	29.5	43
Show		20446-2230	TDT2512		57	2.1	44
Show		20485-2205	DON 994		85	0.6	44
Show		20440-2233	ARA1933		335	9.7	50
Show		20487-2216	UC 4296		251	33.2	52
Show		20422-2122	ARA1584		1	11.7	54
Show		20448-2054	BU 674	AB	99	2.0	56
Show		20421-2117	B 1894		207	0.4	58
Show		20432-2049	CHR 222	AB	123	0.2	69
Show		20432-2049	CVR 8	AB,C	307	13.6	69
Show		20460-2031	OCC9195		-1	0.0	78
Show		20417-2249	LDS4854		106	3.3	81
Show		20438-2031	HJ 2990		308	19.6	82
Show		20473-2307	BRT1566		285	3.1	83
Show		20449-2311	SEE 427		132	3.7	84
Show		20446-2311	OCC 91		-1	0.1	84
Show		20453-2024	HJ 2992		144	2.9	85
Show		20489-2037	HJ 2998	AB	140	6.0	86
Show		20489-2037	BU 1494	AC	135	92.5	86
Show		20450-2315	UC 4279		346	8.8	88
Show		20498-2036	ARA1218		307	1.4	94
Show		20395-2230	WIS 340		327	104.3	94
Show		20517-2112	UC 4310		318	18.7	95
Show		20527-2205	OCC9215		174	0.0	102
Show		20478-2334	HDO 161	AB	19	29.8	110
Show		20478-2334	HDO 161	AC	244	38.8	110
Show		20383-2234	ARA1932		215	12.6	111
Show		20384-2100	RST9008		102	0.1	111
Show		20444-2339	HJ 2991	BC	285	5.8	112
Show		20444-2339	HJ 2991	AB	9	38.1	112
Show		20415-2012	ARA1213		245	1.3	113
Show		20439-1958	BRT1565		221	4.1	113
Show		20451-2346	I 666		149	0.4	118
Show		20381-2244	B 497		275	0.6	118
Show		20462-2352	HO 139		214	5.2	125
Show		20512-2010	BHA 41		64	4.5	128
Show		20399-2008	I 1426		225	1.6	129
Show		20368-2239	KPP1705		335	13.2	132
Show		20430-1942	ARA1214		38	3.7	133
Show		20361-2127	UC 4229		313	14.3	134
Show		20363-2113	ARA1583		309	5.8	134
Show		20493-1945	ALP 25		163	21.1	135
Show		20425-2358	KPP4212		351	2.7	137
Show		20526-2323	WHC 21		19	31.5	138
Show		20531-2013	ARA1220		187	6.7	143

WDS 20455-2148 : COMPONENTS

	A
B	pa=281.2° sep=7.28"

20455-2148 A

Componente originario normalizzato	AB		Coord arcsec 2000	204532.27-214825.5		Mag	11.7		PmRA	-37.00
PmDE	-60.0

20455-2148 B

Componente originario normalizzato	AB		Coord arcsec 2000	204531.76-214824.1		Mag	16.2		PmRA	-47.00
PmDE	-51.0		Calc delta mag	4.5		Calc coord	yes