18421-4237 UC 3645

18^h 42^m 03.38^s -42° 37' 21.1" P.A. 333.00 sep 14.3 mag 12.10,15.80

Coord 2000	18421-4237	Discov num	UC 3645	Comp		Coord arcsec 2000	18 42 03.38 -42 37 21.1
Date first	1998	Date last	2015	Obs	5
Pa first	334	Pa last	333.1	P.A. Now (θ)	333.1°
Sep first	14.4	Sep last	14.343	Sep. Now (ρ)	14.343"
Mag pri	12.10	Mag sec	15.80	delta mag (ΔM)	3.7	Spectral class
Pri motion ra	-037	Sec motion ra	-036
Pri motion dec	-051	Sec motion dec	-041
Notes	V R (Proper motion indicates physical, Red magnitudes)

rPM=0.16 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Corona Austrina

Gaia DR2

6710306957372313088

WDS 18421-4237 UC 3645 : 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
18421-4237	UC 3645		2000	2	333	14.4	12.10	15.80		V	184203.38-423721.1
18421-4237	UC 3645		2010	3	332	14.2	12.10	15.80		V R	184203.38-423721.1
18421-4237	UC 3645		2015	4	333	14.4	12.10	15.80		V R	184203.38-423721.1

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

WDS 18421-4237 UC 3645 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18421-4237 UC 3645 : MEASURES

No records found.

WDS 18421-4237 : VIRTUAL EYEPIECE

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WDS 18421-4237 : ALADIN DSS IMAGE @ 18^h 42^m 03.38^s -42° 37' 21.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18421-4237 UC 3645 : 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		18421-4237	UC 3645		333	14.3
Show		18411-4227	TDS 932			4.0	15
Show		18412-4210	I 250		110	1.2	29
Show		18385-4247	DON 915		211	2.5	41
Show		18457-4226	HDS2660		354	0.1	42
Show		18382-4240	CPO 595		17	3.9	43
Show		18402-4200	UC 3634		112	43.8	43
Show		18404-4320	SKF1149		22	42.5	47
Show		18408-4330	DON 918		130	2.1	55
Show		18463-4206	DON 922		316	8.4	57
Show		18455-4155	FAL 64	AB	134	11.9	57
Show		18368-4233	CRI 20		92	8.4	58
Show		18459-4158	UC 3665		87	37.2	59
Show		18449-4146	BRT1076		15	4.1	61
Show		18431-4134	I 1380		170	1.5	64
Show		18370-4207	I 1374		119	2.2	65
Show		18400-4137	I 1377		81	1.7	66
Show		18468-4318	BRT1077		331	4.1	66
Show		18390-4336	BRT1073	AB	285	4.3	68
Show		18390-4336	DAM 113	AC	153	10.2	68
Show		18472-4315	BRT1078		302	3.2	68
Show		18378-4148	BRT1071		353	3.6	69
Show		18482-4216	CPO9001		216	2.6	72
Show		18387-4127	HJ 5052		130	5.7	80
Show		18366-4140	RST2067		192	1.6	84
Show		18481-4330	KPP4341	AB	144	2.1	85
Show		18481-4330	KPP4341	AC	297	6.0	85
Show		18481-4330	KPP4341	BC	302	7.1	85
Show		18367-4137	CPO 593		257	3.7	85
Show		18341-4218	DON 910		143	0.6	90
Show		18334-4240	CPO 82	AB	45	5.9	96
Show		18334-4240	I 9020	AC	74	25.1	96
Show		18506-4304	BRT1080		308	5.5	98
Show		18428-4416	LDS 649		240	130.4	99
Show		18508-4301	UC 3694		319	27.5	100
Show		18470-4110	TDS 944		139	2.4	104
Show		18418-4054	TDT1005		33	1.0	104
Show		18362-4402	BRT1068		141	1.8	107
Show		18420-4050	UC 3643		275	23.0	107
Show		18387-4419	BRT1072		80	5.3	108
Show		18489-4120	RST2075		96	9.5	109
Show		18329-4156	B 2453		256	6.3	110
Show		18345-4127	RST2063		181	6.3	111
Show		18508-4335	DON 926		274	0.9	113
Show		18494-4120	TDT1073		3	0.5	114
Show		18323-4159	CPO9268		83	5.3	115
Show		18414-4433	CBL 172		53	36.3	116
Show		18364-4419	TSN 50		346	174.9	119
Show		18341-4358	BRT1064		332	4.4	119
Show		18459-4046	HDS2661	AB	263	4.3	119
Show		18516-4337	UC 3698		114	50.9	121

WDS 18421-4237 : COMPONENTS

	A
B	pa=339.5° sep=13.65"

18421-4237 A

Componente originario normalizzato	AB		Coord arcsec 2000	184203.38-423721.1		Mag	12.1		PmRA	-37.00
PmDE	-51.0

18421-4237 B

Componente originario normalizzato	AB		Coord arcsec 2000	184202.95-423708.3		Mag	15.8		PmRA	-36.00
PmDE	-41.0		Calc delta mag	3.7		Calc coord	yes