20279+3047 RAO 520 (HD 334426)

20^h 27^m 52.30^s +30° 47' 28.3" P.A. -1.00 sep 0.2 mag 9.70, Sp F2

Coord 2000	20279+3047	Discov num	RAO 520	Comp		Coord arcsec 2000	20 27 52.30 +30 47 28.3
Date first	2018	Date last	2018	Obs	0
Pa first	-1	Pa last	-1	P.A. Now (θ)	-1
Sep first	0.2	Sep last	0.19	Sep. Now (ρ)	0.19"
Mag pri	9.70	Mag sec		delta mag (ΔM)		Spectral class	F2 (yellow-white)
Pri motion ra	+012	Sec motion ra
Pri motion dec	+012	Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name

HD 334426

Constellation

Cygnus

Tycho2

2685-01903-1

334426

WDS 20279+3047 RAO 520 (HD 334426) : NOTES

discov_num	notes	refcode
RAO 520	V442 Cyg.

REFERENCES

refcode	metd	author	reference
RAO		Robo AO (Palomar 60" AO project or KPNO 2.1m)	......
RAO2014	Ag j	Law, N.M., Morton, T., Baranec, C., Riddle, R., Ravichandran, G., Ziegler, C.,	2014ApJ...791...35L
RAO2014		Johnson, J.A., Tendulkar, S.P., Bui, K., Burse, M.P., Das, H., Dekany, R., et al.
RAO2014		ApJ 791, 35, 2014
RAO2014		(separation/magnitude difference limits estimated from their Figure 4)
RAO2015	Ag u	Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr.,	2015ApJ...799....4R
RAO2015	+orb	Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
RAO2015		Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
RAO2015		ApJ 799, 4, 2015
RAO2015		(Note: Paper includes separation/magnitude difference limits for all stars
RAO2015		observed. These limits have been added to the Interferometric Catalog even for
RAO2015		resolved pairs, to indicate restrictions on any potential additional components.)
RAO2015b	A j	Ziegler, C., Law, N.M., Baranec, C., Riddle, R.L., & Fuchs, J.T.	2015ApJ...804...30Z
RAO2015b	+Ag	ApJ 804, 30, 2015
RAO2016	Ag j	Baranec, C., Ziegler, C., Law, N.M., Morton, T., Riddle, R.L., Atkinson, D.,	2016AJ....152...18B
RAO2016		Schonhut, J., & Crepp, J.
RAO2016		AJ 152, 18, 2016
RAO2017	Ag j	Ziegler, C., Law, N.M., Nicholas, M., Morton, T., Baranec, C., Riddle, R.L.,	2017AJ....153...66Z
RAO2017	+A	Atkinson, D., Baker, A., Roberts, S., & Ciardi, D.R.
RAO2017		AJ 153, 66, 2017
RAO2017b	Ag j	Schonhut-Stasik, J.S., Baranec, C., Huber, D., Ziegler, C., Atkinson, D., Gaidos,	2017ApJ...847...97S
RAO2017b		E., Law, N.M., Riddle, R., Hagelberg, J., van der Marel, N., & Hodapp, K.W.
RAO2017b		ApJ 847, 97, 2017
RAO2018	Ag j	Hillenbrand, L.A., Zhang, C., Riddle, R.L., Baranec, C., Ziegler, C., Law, N.M. &	2018AJ....155...51H
RAO2018		Stauffer, J.
RAO2018		AJ 155, 51, 2018
RAO2018		(Note: Precise date of observation not given. Pleiades assume mean Nov observing
RAO2018		date of 2014.86. Other targets given mean date of 2014.91.)
RAO2018b	Ag j	Ziegler, C., Law, N.M., Baranec, C., Riddle, R., Duev, D.A., Howard, W.,	2018AJ....155..161Z
RAO2018b		Jensen-Clem, R., Kulkarni, S.R., Morton, T. & Salama, M.
RAO2018b		AJ 155, 161, 2018
RAO2018c	Hg j	Ziegler, C., Law, N.M., Baranec, C., Morton, T., Riddle, R., De Lee, N., Huber, D.,	2018AJ....156..259Z
RAO2018c		Mahadevan, S. & Pepper, J.
RAO2018c		AJ 156, 259, 2018
RAO2019	Ag j	Bowler, B.P., Hinkley, S., Ziegler, C., Baranec, C., Gizis, J.E., Law, N.M., Liu,	2019ApJ...877...60B
RAO2019		M.C., Shah, V.S., Shkolnik, E.L., Riaz, B. & Riddle, R.
RAO2019		ApJ 877, 60, 2019
RAO2020a	Ag j	Schonhut-Stasik, J.S., Huber, D., Baranec, C., Lamman, C., Salama, M., Jensen-Clem,	2020ApJ...883...34S
RAO2020a		R., Duev, D.A., Riddle, R., Kulkarni, S.R. & Law, N.M.
RAO2020a		ApJ 883, 34, 2020
RAO2020b	Ag+ j	Lamman, C., Baranec, C., Berta-Thompson, Z.K., Law, N.M., Schonhut-Stasik, J.,	2020AJ....159..139L
RAO2020b	+A	Ziegler, C., Salama, M., Jensen-Clem, R., Duev, D.A., Riddle, R., Kulkarni, S.R.,
RAO2020b		Winters, J.G. & Irwin, J.M.
RAO2020b		AJ 159, 139, 2020
RAO2020c	Ag j	Laos, S., Stassun, K.G. & Mathieu, R.D.	2020ApJ...902..107L
RAO2020c		ApJ 902, 107, 2020
RAO2021	Ag j	Salama, M., Ou, J., Barance, C., Liu, M.C., Bowler, B.P., Barnes, P., Bonnet, M.,	2021AJ....162..102S
RAO2021		Chun, M., Duev, D.A., Goebel, S., Hall, D., Jacobson, S., Jensen-Clem, R., Law,
RAO2021		N.M., Lockhart, C., Riddle, R., Situ, H., Warmbier, E. & Zhang, Z.
RAO2021		AJ 162, 102, 2021
RAO2022	Ag j	Salama, M., Ziegler, C., Baranec, C., Liu, M.C., Law, N.M., Riddle, R., Henry,	2022AJ....163..200S
RAO2022		T.J., Winters, J.G., Jao, W.-C., Ou, J. & Ruiz, A.H.
RAO2022		AJ 163, 200, 2022

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20279+3047	RAO 520		2018	0	-1	0.2	9.70	0.00	F2	N	202752.30+304728.3

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

WDS 20279+3047 RAO 520 (HD 334426) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20279+3047 RAO 520 (HD 334426) : MEASURES

No records found.

WDS 20279+3047 (HD 334426) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20279+3047 (HD 334426) : ALADIN DSS IMAGE @ 20^h 27^m 52.30^s +30° 47' 28.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20279+3047 RAO 520 (HD 334426) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20279+3047	RAO 520		-1	0.2
Show		20294+3048	HJ 1521		194	15.4	21
Show		20282+3024	HJ 1517		105	13.1	24
Show		20286+3118	COU1325		222	0.2	33
Show		20300+3029	STJ 59		219	1.4	34
Show		20265+3117	TDT2272		352	2.3	35
Show		20282+3124	ES 2435		241	3.4	37
Show		20269+3121	TDT2280		334	0.5	37
Show		20257+3022	COU1324		202	3.0	39
Show		20250+3034	HDS2921		358	0.8	39
Show		20280+3008	BU 62	AB	133	1.2	40
Show		20280+3008	BU 62	AC	179	38.2	40
Show		20280+3008	BU 62	AD	267	46.1	40
Show		20306+3029	ES 505		15	2.1	40
Show		20280+3128	TDS1074		334	1.5	41
Show		20284+3007	OL 75		136	1.8	41
Show		20248+3033	ES 363		277	3.1	42
Show		20299+3129	TDT2323		44	0.6	50
Show		20291+2956	AG 406		333	8.5	54
Show		20245+3120	TDT2244		281	0.4	55
Show		20319+3024	BRT 280		48	4.8	57
Show		20290+3142	TDT2316		189	2.1	57
Show		20275+3145	ES 364		279	7.3	58
Show		20234+3053	ARG 91		175	20.8	58
Show		20326+3049	TDT2349		60	0.6	62
Show		20306+3138	RAO 437		66	3.1	62
Show		20231+3036	ES 362	AB	232	10.8	63
Show		20231+3036	ES 362	BC	270	5.1	63
Show		20251+3141	ES 2434		287	4.3	64
Show		20317+3005	ARY 46	AB	5	91.1	65
Show		20317+3005	ARY 46	AC	92	146.6	65
Show		20329+3056	COU1326		263	0.4	66
Show		20281+3153	TDT2303		143	2.7	66
Show		20242+2958	HDS2916	Aa,Ab	223	0.2	69
Show		20242+2958	FMR 87	AB	50	1.4	69
Show		20242+2958	FMR 87	AC	117	7.8	69
Show		20330+3108	TDT2360		315	0.9	69
Show		20332+3052	TDT2366		146	0.7	70
Show		20234+3007	J 1772		98	2.4	71
Show		20262+3157	KPP3419		60	17.1	73
Show		20320+3136	ES 2436		306	6.7	73
Show		20223+3110	BRT1954		278	4.8	75
Show		20222+3105	TDT2211		354	2.4	75
Show		20328+3007	TDT2356		328	0.4	76
Show		20222+3115	A 1208		161	0.2	79
Show		20222+3118	RAO 430		289	2.6	79
Show		20327+3140	HJ 1532		305	12.5	79
Show		20251+3159	ES 2433		267	8.6	80
Show		20332+3008	BRT 281		154	6.4	81
Show		20333+3128	TDT2368		18	2.1	81
Show		20225+3004	TDT2216		133	0.5	83

WDS 20279+3047 : COMPONENTS

	A
B	pa=0.0° sep=0.00"

20279+3047 A

Componente originario normalizzato	AB	Name	HD 334426	Coord arcsec 2000	202752.30+304728.3	Mag	9.7
Spectral class	F2 (yellow-white)	PmRA	12.00	PmDE	12.0	Tycho2	2685-01903-1
HD	334426

Tycho2

Tycho2	2685-01903-1	Pflag		RAmdeg	306.96793095	DEmdeg	30.79120720
PmRA	12.8	PmDE	10.1	E RAmdeg	12	E DEmdeg	12
E pmRA	1.7	E pmDE	1.7	EpRAm	1990.38	EpDEm	1990.88
Num	5	Q RAmdeg	1.0	Q DEmdeg	2.0	Q pmRA	0.9
Q pmDE	2.1	BTmag	10.276	E BTmag	0.024	VTmag	9.752
E VTmag	0.020	Prox	540	TYC	T	HIP
CCDM		RAdeg	306.96789639	DEdeg	30.79118333	EpRA 1990	1.56
EpDE 1990	1.68	E RAdeg	13.2	E DEdeg	12.4	Posflg
Corr	0.2

20279+3047 B

Componente originario normalizzato

Coord arcsec 2000

202752.30+304728.3

Calc delta mag

9.7

Calc coord

yes