20500+1702 UC 4303

20^h 49^m 59.00^s +17° 02' 06.6" P.A. 81.00 sep 18.2 mag 15.30,14.33

Coord 2000	20500+1702	Discov num	UC 4303	Comp		Coord arcsec 2000	20 49 59.00 +17 02 06.6
Date first	2000	Date last	2015	Obs	4
Pa first	82	Pa last	80.6	P.A. Now (θ)	80.6°
Sep first	18.0	Sep last	18.178	Sep. Now (ρ)	18.178"
Mag pri	15.30	Mag sec	14.33	delta mag (ΔM)	0.97	Spectral class
Pri motion ra	-020	Sec motion ra	-001
Pri motion dec	-065	Sec motion dec	-055
Notes	V (Proper motion indicates physical)

rPM=0.316

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Gaia DR2

1764664592911345408

WDS 20500+1702 UC 4303 : 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
20500+1702	UC 4303		2000	2	82	18.0	15.30	15.60		V	204959.00+170206.6
20500+1702	UC 4303		2001	2	82	17.9	15.30	15.60		V	204959.00+170206.6
20500+1702	UC 4303		2015	3	81	18.2	15.30	14.33		V	204959.00+170206.6

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

WDS 20500+1702 UC 4303 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20500+1702 UC 4303 : MEASURES

No records found.

WDS 20500+1702 : VIRTUAL EYEPIECE

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WDS 20500+1702 : ALADIN DSS IMAGE @ 20^h 49^m 59.00^s +17° 02' 06.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20500+1702 UC 4303 : 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		20500+1702	UC 4303		81	18.2
Show		20501+1707	HEI 183		25	0.5	5
Show		20508+1702	CVR 875		72	20.3	11
Show		20503+1649	TDT2571		258	0.8	15
Show		20499+1718	CBL 88		104	43.4	17
Show		20513+1647	J 3115		321	7.1	25
Show		20500+1732	TDS1104		299	1.9	30
Show		20503+1630	LDS1048	AB	151	13.7	32
Show		20503+1630	LDS1048	AC	213	1.6	32
Show		20522+1656	J 3116	AB	39	73.3	32
Show		20522+1656	J 3116	BC	143	6.0	33
Show		20485+1628	BPM2271		127	97.8	41
Show		20479+1732	BRT1348		123	5.7	42
Show		20518+1736	J 2325		260	5.4	44
Show		20527+1726	J 605	AB	241	1.7	47
Show		20527+1726	J 605	AC	161	38.1	47
Show		20505+1616	KPP4216		237	1.6	47
Show		20514+1619	BPM2283		243	38.1	48
Show		20481+1616	SKF1770		223	3.4	54
Show		20463+1715	GWP2995		257	8.3	54
Show		20539+1700	BPM2288		339	115.1	57
Show		20535+1734	UC 4319		158	67.6	60
Show		20506+1601	BPM2281		268	35.3	62
Show		20534+1742	BPM2286		19	97.0	63
Show		20456+1714	COU 425		327	0.7	64
Show		20463+1624	BPM2257		337	107.8	65
Show		20489+1558	BPM2275		143	74.7	67
Show		20501+1556	BPM2278		296	68.3	67
Show		20466+1616	BPM2261		202	69.5	67
Show		20481+1601	BPM2269		222	81.9	67
Show		20453+1715	GWP2993		104	11.1	68
Show		20499+1811	UC 4302		172	82.1	70
Show		20467+1607	STF2727	AB	266	8.8	73
Show		20467+1607	FYM 18	AD	323	109.4	73
Show		20542+1619	BPM2289		75	96.0	75
Show		20468+1602	BPM2264		222	107.2	76
Show		20530+1806	UC 4316		216	48.9	78
Show		20548+1642	ROE 126		138	9.7	78
Show		20480+1816	BPM2268		54	74.1	79
Show		20448+1730	BPM2252		246	39.8	80
Show		20509+1544	BPM2282		160	54.6	80
Show		20485+1545	BPM2272		333	103.7	80
Show		20446+1642	BPM2246	AB	16	90.0	81
Show		20446+1642	BPM2247	AC	173	116.0	81
Show		20446+1635	BPM2250	BC	332	117.2	81
Show		20518+1545	GWP3007		163	8.1	82
Show		20446+1635	BPM2248	AB	95	107.8	83
Show		20446+1635	BPM2249	AC	29	107.0	83
Show		20555+1730	J 3328		120	4.2	84
Show		20462+1554	WSI 110	Aa,Ab	343	0.0	87
Show		20462+1554	STF2725	AB	12	6.2	87

WDS 20500+1702 : COMPONENTS

	A
B	pa=80.2° sep=17.40"

20500+1702 A

Componente originario normalizzato	AB		Coord arcsec 2000	204959.00+170206.6		Mag	15.3		PmRA	-20.00
PmDE	-65.0

20500+1702 B

Componente originario normalizzato	AB		Coord arcsec 2000	205000.20+170209.6		Mag	14.33		PmRA	-1.00
PmDE	-55.0		Calc delta mag	0.97		Calc coord	yes