20499+1811 UC 4302

20^h 49^m 52.95^s +18° 11' 19.2" P.A. 172.00 sep 82.1 mag 14.30,16.10

Coord 2000	20499+1811	Discov num	UC 4302	Comp		Coord arcsec 2000	20 49 52.95 +18 11 19.2
Date first	1999	Date last	2015	Obs	5
Pa first	172	Pa last	171.8	P.A. Now (θ)	171.8°
Sep first	83.3	Sep last	82.106	Sep. Now (ρ)	82.106"
Mag pri	14.30	Mag sec	16.10	delta mag (ΔM)	1.8	Spectral class
Pri motion ra	+005	Sec motion ra	+015
Pri motion dec	-085	Sec motion dec	-105
Notes	V (Proper motion indicates physical)

rPM=0.211 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Gaia DR2

1812930198434063872

WDS 20499+1811 UC 4302 : 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
20499+1811	UC 4302		2000	2	172	83.3	14.30	16.10		V	204952.95+181119.2
20499+1811	UC 4302		2001	2	172	83.3	14.30	16.10		V	204952.95+181119.2
20499+1811	UC 4302		2010	3	172	82.3	14.30	16.10		V	204952.95+181119.2
20499+1811	UC 4302		2015	4	172	82.1	14.30	16.10		V	204952.95+181119.2

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

WDS 20499+1811 UC 4302 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20499+1811 UC 4302 : MEASURES

No records found.

WDS 20499+1811 : VIRTUAL EYEPIECE

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

WDS 20499+1811 : ALADIN DSS IMAGE @ 20^h 49^m 52.95^s +18° 11' 19.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20499+1811 UC 4302 : 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		20499+1811	UC 4302		172	82.1	1
Show		20480+1816	BPM2268		54	74.1	27
Show		20500+1732	TDS1104		299	1.9	40
Show		20479+1840	UC 4292		105	11.0	41
Show		20530+1806	UC 4316		216	48.9	45
Show		20518+1736	J 2325		260	5.4	45
Show		20523+1841	UC 4314		181	49.2	45
Show		20485+1854	HO 459		24	0.5	48
Show		20479+1732	BRT1348		123	5.7	49
Show		20499+1718	CBL 88		104	43.4	54
Show		20509+1907	J 195		23	3.3	58
Show		20534+1742	BPM2286		19	97.0	58
Show		20467+1846	YR 28		71	0.0	58
Show		20527+1726	J 605	AB	241	1.7	61
Show		20527+1726	J 605	AC	161	38.1	61
Show		20472+1901	TDT2538		234	1.0	63
Show		20535+1734	UC 4319		158	67.6	64
Show		20501+1707	HEI 183		25	0.5	65
Show		20500+1702	UC 4303		81	18.2	70
Show		20508+1702	CVR 875		72	20.3	71
Show		20467+1913	GWP2997		116	272.0	77
Show		20463+1715	GWP2995		257	8.3	77
Show		20471+1918	HO 141	AB	294	1.6	78
Show		20471+1918	HO 141	AC	64	22.6	78
Show		20466+1915	COU 426		158	0.3	79
Show		20444+1752	UC 4276		284	50.8	81
Show		20522+1656	J 3116	BC	143	6.0	82
Show		20522+1656	J 3116	AB	39	73.3	82
Show		20503+1649	TDT2571		258	0.8	83
Show		20448+1730	BPM2252		246	39.8	84
Show		20456+1714	COU 425		327	0.7	84
Show		20556+1744	BPM2297		91	30.5	86
Show		20453+1715	GWP2993		104	11.1	86
Show		20534+1921	J 573		186	4.2	87
Show		20553+1852	KPP3364		154	2.7	87
Show		20513+1647	J 3115		321	7.1	88
Show		20437+1800	LDS4857		128	52.4	90
Show		20555+1730	J 3328		120	4.2	91
Show		20442+1731	BPM2241		344	107.2	91
Show		20539+1700	BPM2288		339	115.1	93
Show		20488+1943	JNN 286		179	0.2	93
Show		20567+1818	BPM2298		348	78.4	98
Show		20536+1935	HO 597		236	10.3	100
Show		20503+1630	LDS1048	AB	151	13.7	101
Show		20503+1630	LDS1048	AC	213	1.6	101
Show		20570+1758	COU 427		221	1.5	103
Show		20509+1953	UC 255		263	11.9	103
Show		20433+1728	J 3109		245	7.8	104
Show		20571+1801	J 607		305	3.1	104
Show		20433+1855	TDS1094		261	1.0	104
Show		20432+1728	LOS 9		116	2.8	105

WDS 20499+1811 : COMPONENTS

	A
B	pa=172.2° sep=82.02"

20499+1811 A

Componente originario normalizzato	AB		Coord arcsec 2000	204952.95+181119.2		Mag	14.3		PmRA	5.00
PmDE	-85.0

20499+1811 B

Componente originario normalizzato	AB		Coord arcsec 2000	204953.73+180957.9		Mag	16.1		PmRA	15.00
PmDE	-105.0		Calc delta mag	1.8		Calc coord	yes