20396+2018 WFC 257 (HD 196883)

20^h 39^m 38.89^s +20° 18' 08.4" P.A. 317.00 sep 6.7 mag 8.60,10.00 Sp F2

Coord 2000	20396+2018	Discov num	WFC 257	Comp		Coord arcsec 2000	20 39 38.89 +20 18 08.4
Date first	1894	Date last	2020	Obs	16
Pa first	320	Pa last	317.2	P.A. Now (θ)	317.2°
Sep first	6.8	Sep last	6.73	Sep. Now (ρ)	6.73"
Mag pri	8.60	Mag sec	10.00	delta mag (ΔM)	1.4	Spectral class	F2 (yellow-white)
Pri motion ra	+055	Sec motion ra	+000
Pri motion dec	+019	Sec motion dec	+000
Notes	N V (See Notes, Proper motion indicates physical)

rPM=1

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 196883		Constellation	Delphinus		Tycho2	1641-01495-1		Gaia DR2	1817360989776992512
HD	196883

WDS 20396+2018 WFC 257 (HD 196883) : NOTES

discov_num	notes	refcode
WFC 257	HJL 285.	HJL1986

REFERENCES

refcode	metd	author	reference
HJL1986	Pa -	Halbwachs, J.L.	1986A&AS...66..131H
HJL1986		A&AS 66, 131, 1986
HJL1986		(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986		only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)

DISCOVERER

idgroup	discov	author
1	WFC	Schlesinger, F. & Barney, I.
92	WFC	Urban, S.E., Corbin, T.E., Wycoff, G.L., Martin, J.C., Jackson, E.S.,
92	WFC	Zacharias, M.I., & Hall, D.M.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20396+2018	WFC 257		2004	4	320	6.4	8.60	10.00		DV	203938.89+201808.4
20396+2018	WFC 257		2016	9	317	6.8	8.60	10.00	F2	NV	203938.89+201808.4
20396+2018	WFC 257		2020	16	317	6.7	8.60	10.00	F2	NV	203938.89+201808.4

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

WDS 20396+2018 WFC 257 (HD 196883) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20396+2018 WFC 257 (HD 196883) : MEASURES

No records found.

WDS 20396+2018 (HD 196883) : VIRTUAL EYEPIECE

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WDS 20396+2018 (HD 196883) : ALADIN DSS IMAGE @ 20^h 39^m 38.89^s +20° 18' 08.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20396+2018 WFC 257 (HD 196883) : NEIGHBORHOODS

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Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20396+2018	WFC 257		317	6.7
Show		20393+2003	J 3103		224	5.5	15
Show		20386+2007	COU 225		286	0.3	19
Show		20412+2023	COU 423		162	0.4	23
Show		20402+2039	SCA 173		170	1.5	23
Show		20403+2040	TDT2461		356	0.5	24
Show		20410+2001	HJ 2987		116	10.8	25
Show		20408+1956	BUP 215	AB	25	69.4	27
Show		20408+1956	LDS1045	AC	184	125.2	27
Show		20408+1956	RAO 23	Ca,Cb	227	0.2	29
Show		20408+1956	RAO 23	CD	303	20.3	29
Show		20408+1956	RAO 23	CE	327	29.4	29
Show		20381+2050	COU 328		155	1.0	40
Show		20419+2043	BU 673	AB	292	3.9	40
Show		20419+2043	BU 673	AC	163	102.6	40
Show		20406+2059	TDT2465		30	1.1	43
Show		20422+1952	LBU 19	AB	138	124.7	45
Show		20422+1952	LBU 19	AC	111	94.9	45
Show		20422+1952	LBU 19	AD	23	129.8	45
Show		20365+2044	J 3096	AB	2	26.6	51
Show		20378+1936	J 3099		145	5.5	51
Show		20365+2044	J 3096	BC	10	8.5	51
Show		20383+2106	TDT2441		89	0.6	51
Show		20398+1927	J 2604		141	2.2	53
Show		20419+1931	COU 226	AB	53	0.4	57
Show		20419+1931	COU 226	AC	337	13.9	57
Show		20435+1953	STF2721		22	2.6	60
Show		20423+2109	BRT2480		232	4.7	63
Show		20436+1944	STF2722		306	7.5	67
Show		20423+1921	SHN 39		54	0.5	68
Show		20407+2128	COU 127		48	6.1	72
Show		20363+1924	KPP 475		113	4.8	72
Show		20447+2032	BRT2484		5	2.9	73
Show		20444+1945	CAR 2		82	0.2	75
Show		20449+2041	J 1179		143	4.0	77
Show		20411+2133	HJ 922		313	7.7	78
Show		20448+2051	A 172		219	2.9	80
Show		20448+1943	COU 424		239	5.5	81
Show		20395+1857	HU 362		313	0.6	82
Show		20397+2141	STF2710		163	19.0	84
Show		20396+2143	STF2709		295	10.2	86
Show		20385+1848	J 3102		96	6.4	90
Show		20444+2119	A 171		325	5.4	91
Show		20445+2123	BRT2483		307	3.6	95
Show		20415+2149	GRV 368		30	78.3	96
Show		20336+2106	ARN 83		75	58.6	98
Show		20433+1855	TDS1094		261	1.0	98
Show		20406+2156	A 2795		240	0.2	99
Show		20336+2111	HJ 2979	AB	63	10.4	100
Show		20336+2111	HJ 2979	AC	354	18.9	100
Show		20339+1915	J 3094	AB	22	7.5	103

WDS 20396+2018 : COMPONENTS

	A
B	pa=319.0° sep=6.54"

20396+2018 A

Componente originario normalizzato	AB	Name	HD 196883	Coord arcsec 2000	203938.89+201808.4	Mag	8.6
Spectral class	F2 (yellow-white)	PmRA	55.00	PmDE	19.0	Tycho2	1641-01495-1
HD	196883

Tycho2

Tycho2	1641-01495-1	Pflag		RAmdeg	309.91203510	DEmdeg	20.30234305
PmRA	54.0	PmDE	21.9	E RAmdeg	8	E DEmdeg	9
E pmRA	1.2	E pmDE	1.1	EpRAm	1990.93	EpDEm	1990.61
Num	4	Q RAmdeg	0.1	Q DEmdeg	0.3	Q pmRA	0.2
Q pmDE	0.3	BTmag	9.165	E BTmag	0.019	VTmag	8.634
E VTmag	0.015	Prox	999	TYC	T	HIP
CCDM		RAdeg	309.91189750	DEdeg	20.30228972	EpRA 1990	1.39
EpDE 1990	1.26	E RAdeg	7.5	E DEdeg	8.8	Posflg
Corr	-0.1

20396+2018 B

Componente originario normalizzato	AB		Coord arcsec 2000	203938.59+201813.3		Mag	10		PmRA	0.00
PmDE	0.0		Calc delta mag	1.4		Calc coord	yes