20501-3315 UC 4305

20^h 50^m 05.75^s -33° 14' 43.5" P.A. 302.00 sep 143.4 mag 10.07,12.64

Coord 2000	20501-3315	Discov num	UC 4305	Comp		Coord arcsec 2000	20 50 05.75 -33 14 43.5
Date first	1913	Date last	2016	Obs	7
Pa first	303	Pa last	302.2	P.A. Now (θ)	302.2°
Sep first	144.0	Sep last	143.437	Sep. Now (ρ)	143.437"
Mag pri	10.07	Mag sec	12.64	delta mag (ΔM)	2.57	Spectral class
Pri motion ra	+148	Sec motion ra	+147
Pri motion dec	-019	Sec motion dec	-018
Notes	V (Proper motion indicates physical)

rPM=0.009 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Microscopium

Tycho2

7461-01225-1

Gaia DR2

6780097946847202688

WDS 20501-3315 UC 4305 : 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
20501-3315	UC 4305		1999	3	302	143.4	9.90	12.60		V	205005.75-331443.5
20501-3315	UC 4305		2000	2	302	143.4	9.90	12.60		V	205005.75-331443.5
20501-3315	UC 4305		2010	4	302	143.5	10.07	12.64		V	205005.75-331443.5
20501-3315	UC 4305		2015	5	302	143.4	10.07	12.64		V	205005.75-331443.5
20501-3315	UC 4305		2016	7	302	143.4	10.07	12.64		V	205005.75-331443.5

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

WDS 20501-3315 UC 4305 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20501-3315 UC 4305 : MEASURES

No records found.

WDS 20501-3315 : VIRTUAL EYEPIECE

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

WDS 20501-3315 : ALADIN DSS IMAGE @ 20^h 50^m 05.75^s -33° 14' 43.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20501-3315 UC 4305 : 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		20501-3315	UC 4305		302	143.4
Show		20510-3256	RST2162		76	0.8	22
Show		20517-3303	UC 4311		335	26.1	23
Show		20500-3347	HJ 5224		165	20.2	33
Show		20478-3255	WIS 343		9	525.5	35
Show		20521-3353	SEE 430		345	14.5	46
Show		20529-3245	B 1000		312	3.6	46
Show		20467-3336	HDS2960	AB	158	0.2	49
Show		20467-3336	SKF2090	AC	190	88.1	49
Show		20467-3245	RST2160		138	0.5	53
Show		20543-3243	TDT2622	Aa,Ab	232	0.5	63
Show		20543-3243	UC 4321	AB	38	24.4	63
Show		20556-3304	LDS6419		34	4.7	72
Show		20521-3428	B 999		328	1.3	78
Show		20451-3221	KPP3118	Aa,Ab	16	1.6	82
Show		20451-3221	LDS5910		355	283.9	82
Show		20518-3434	B 504		38	2.3	82
Show		20551-3408	HJ 5234		90	15.1	83
Show		20565-3340	B 1002		324	0.6	85
Show		20431-3305	UC 4268			40.3	89
Show		20563-3216	JSP 819		348	0.8	99
Show		20554-3202	TDT2631		243	0.7	99
Show		20577-3248	ENO 6		24	13.6	100
Show		20525-3451	NSN 490		73	2.0	101
Show		20570-3406	RST3272		23	2.2	101
Show		20579-3339	RED 26		186	18.9	102
Show		20458-3443	HJ 5219		323	8.5	103
Show		20561-3201	JSP 818		357	2.2	107
Show		20479-3132	B 995		288	0.5	107
Show		20485-3126	B 996		321	1.6	111
Show		20411-3327	SEE 424	A,BC	335	11.2	114
Show		20411-3327	B 993	BC	40	0.4	114
Show		20516-3123	KPP2645		163	24.7	114
Show		20591-3301	RST2169		99	1.3	114
Show		20592-3325	RST2170		33	1.0	115
Show		20452-3120	LDS 720	BC	128	1.8	115
Show		20440-3147	JSP 816		132	3.3	117
Show		20562-3146	B 1001		212	0.3	118
Show		20507-3116	B 997		273	0.2	120
Show		20588-3402	RST3274		358	1.8	120
Show		20575-3435	BRT1816		180	3.7	123
Show		20404-3251	SHY 781		310	999.9	124
Show		20521-3517	RST3270		338	2.5	125
Show		20517-3109	LDS5913		85	97.0	127
Show		20452-3122	WOR 40		168	4.8	130
Show		20452-3120	LDS 720	AB	213	999.9	131
Show		20452-3510	SEE 428		188	4.4	131
Show		20518-3523	KPP1661		42	12.8	131
Show		20480-3523	B 2892		104	8.1	132
Show		20511-3103	RST2163		231	2.1	133
Show		21007-3315	TDT2691		258	0.5	133

WDS 20501-3315 : COMPONENTS

	A
B	pa=307.0° sep=127.08"

20501-3315 A

Componente originario normalizzato	AB		Coord arcsec 2000	205005.75-331443.5		Mag	10.07		PmRA	148.00
PmDE	-19.0		Tycho2	7461-01225-1

Tycho2

Tycho2	7461-01225-1	Pflag		RAmdeg	312.52395006	DEmdeg	-33.24542100
PmRA	148.9	PmDE	-20.2	E RAmdeg	21	E DEmdeg	27
E pmRA	1.6	E pmDE	1.7	EpRAm	1985.22	EpDEm	1982.83
Num	4	Q RAmdeg	1.4	Q DEmdeg	0.5	Q pmRA	1.4
Q pmDE	0.5	BTmag	10.501	E BTmag	0.043	VTmag	10.072
E VTmag	0.044	Prox	999	TYC	T	HIP
CCDM		RAdeg	312.52353833	DEdeg	-33.24537306	EpRA 1990	1.65
EpDE 1990	1.34	E RAdeg	24.0	E DEdeg	31.5	Posflg
Corr	-0.1

20501-3315 B

Componente originario normalizzato	AB		Coord arcsec 2000	204957.66-331327.1		Mag	12.64		PmRA	147.00
PmDE	-18.0		Calc delta mag	2.57		Calc coord	yes