20430-0806 UC 4266 (HD 197280)

20^h 42^m 58.32^s -08° 05' 56.8" P.A. 144.00 sep 21.3 mag 9.80,11.70 Sp G0

Coord 2000	20430-0806	Discov num	UC 4266	Comp		Coord arcsec 2000	20 42 58.32 -08 05 56.8
Date first	1892	Date last	2015	Obs	9
Pa first	144	Pa last	143.9	P.A. Now (θ)	143.9°
Sep first	21.3	Sep last	21.32	Sep. Now (ρ)	21.32"
Mag pri	9.80	Mag sec	11.70	delta mag (ΔM)	1.9	Spectral class	G0 (yellow)
Pri motion ra	+061	Sec motion ra	+062
Pri motion dec	+036	Sec motion dec	+035
Notes	V (Proper motion indicates physical)

rPM=0.02 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 197280		Constellation	Aquarius		SAO	144730		Tycho2	5756-01321-1
Gaia DR2	6906853353851704960		HD	197280		DM	BD-08 5443

WDS 20430-0806 UC 4266 (HD 197280) : 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
20430-0806	UC 4266		2000	2	144	21.4	9.80	11.70		V	204258.32-080556.8
20430-0806	UC 4266		2015	5	144	21.3	9.80	11.70	G0	V	204258.32-080556.8

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

WDS 20430-0806 UC 4266 (HD 197280) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20430-0806 UC 4266 (HD 197280) : MEASURES

No records found.

WDS 20430-0806 (HD 197280) : VIRTUAL EYEPIECE

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

WDS 20430-0806 (HD 197280) : ALADIN DSS IMAGE @ 20^h 42^m 58.32^s -08° 05' 56.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20430-0806 UC 4266 (HD 197280) : 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		20430-0806	UC 4266		144	21.3
Show		20432-0733	TDS1093		33	0.9	33
Show		20414-0835	HDO 159		236	8.2	34
Show		20452-0814	TOB 312		26	40.8	35
Show		20455-0809	HJ 925		174	10.1	39
Show		20399-0804	GWP2978		153	9.0	46
Show		20447-0721	A 2999		221	2.1	52
Show		20446-0853	J 2320	AB	135	3.4	54
Show		20446-0853	J 2320	AC	54	10.5	54
Show		20456-0853	HDO 160		201	5.7	61
Show		20455-0716	A 3000		64	0.7	64
Show		20448-0917	HLD 163	AB	99	2.2	76
Show		20448-0917	HLD 163	AC	239	17.8	76
Show		20417-0646	CVR 872		20	20.3	82
Show		20453-0646	RST4680		235	0.1	88
Show		20490-0749	UC 4297		261	21.3	91
Show		20377-0900	GWP2974		180	60.3	95
Show		20495-0815	TDT2563		92	0.6	97
Show		20440-0631	GRV1138		50	33.2	100
Show		20499-0815	J 2322	AB	8	3.9	104
Show		20475-0646	SKF1769		244	2.0	105
Show		20482-0648	RST4681		243	0.3	110
Show		20499-0851	RST4683		22	1.5	113
Show		20391-0942	J 1400	AB	21	4.6	113
Show		20391-0942	J 1400	AC	232	12.4	113
Show		20509-0815	SHN 247		-1	0.5	118
Show		20349-0822	UC 4221		312	17.5	121
Show		20404-0610	CVR 229		73	35.1	123
Show		20439-0557	RST4679		356	0.3	130
Show		20392-0609	RAS 31		142	0.5	130
Show		20393-0609	BRT 555		266	2.9	130
Show		20411-0558	BAR9004		266	3.2	132
Show		20348-0714	FAL 69		53	14.2	133
Show		20375-0614	BRT 504		329	3.9	138
Show		20502-0640	FMR 19		333	4.2	138
Show		20366-0622	CVR 871		295	23.9	141
Show		20507-0929	HDS2970		114	15.2	142
Show		20390-0555	GWP2977		142	108.2	144
Show		20358-0628	UC 4227		283	36.9	145
Show		20446-1030	KPP3125		203	3.8	146
Show		20482-0601	TOK 341		261	391.4	147
Show		20441-1038	SHN 40		28	0.3	153
Show		20527-0859	MCA 64	Aa,Ab	127	0.0	154
Show		20527-0859	TOK 342	AB	114	503.2	154
Show		20531-0728	BRT 556		109	2.5	155
Show		20354-0615	FOX 94		240	2.5	158
Show		20426-1044	TDT2490		209	0.6	159
Show		20328-0854	HLD 161		73	1.3	159
Show		20415-1047	RST4675		184	2.3	163
Show		20534-0719	RST4685		81	2.1	163
Show		20466-1043	KPP4343	BC	261	2.5	166

WDS 20430-0806 : COMPONENTS

	A
B	pa=144.2° sep=21.25"

20430-0806 A

Componente originario normalizzato	AB	Name	HD 197280	Coord arcsec 2000	204258.32-080556.8	Mag	9.8
Spectral class	G0 (yellow)	PmRA	61.00	PmDE	36.0	SAO	144730
Tycho2	5756-01321-1	HD	197280	DM	BD-08 5443

Tycho2

Tycho2	5756-01321-1	Pflag		RAmdeg	310.74297897	DEmdeg	-8.09912313
PmRA	61.2	PmDE	35.1	E RAmdeg	10	E DEmdeg	14
E pmRA	1.2	E pmDE	1.3	EpRAm	1989.55	EpDEm	1986.90
Num	9	Q RAmdeg	1.3	Q DEmdeg	1.1	Q pmRA	1.3
Q pmDE	1.1	BTmag	10.263	E BTmag	0.026	VTmag	9.612
E VTmag	0.020	Prox	999	TYC	T	HIP
CCDM		RAdeg	310.74283722	DEdeg	-8.09920722	EpRA 1990	1.63
EpDE 1990	1.09	E RAdeg	10.7	E DEdeg	15.6	Posflg
Corr	-0.3

SAO

SAO	144730	DelFlag		RA1950		PmRA1950	0.005
DE1950		PmDE1950	0.043	Vmag	8.9	SpType	G0
Double code		Source	26	CatNum	7396	DM	BD-08 5443
DMcomp		BDsup		HD	197280	M HD	0
GC		RA1950rad	5.4117589	DE1950rad	-0.14451332	PmRA2000	0.0052
PmDE2000	0.042

20430-0806 B

Componente originario normalizzato	AB		Coord arcsec 2000	204259.16-080614.0		Mag	11.7		PmRA	62.00
PmDE	35.0		Calc delta mag	1.9		Calc coord	yes