03337+5752 CHR 117 (HD 21794)

03^h 33^m 41.23^s +57° 52' 07.1" P.A. 259.00 sep 0.1 mag 6.36,6.60 Sp F7V dist. 66.93 pc (218.33 l.y.)

Coord 2000	03337+5752	Discov num	CHR 117	Comp		Coord arcsec 2000	03 33 41.23 +57 52 07.1
Date first	1985	Date last	2009	Obs	22
Pa first	138	Pa last	259.1	P.A. Now (θ)	241°
Sep first	0.1	Sep last	0.142	Sep. Now (ρ)	0.137"
Mag pri	6.36	Mag sec	6.60	delta mag (ΔM)	0.24	Spectral class	F7V (yellow-white)
Pri motion ra	+007	Sec motion ra
Pri motion dec	+040	Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 21794	Constellation	Camelopardalis	SAO	24098	HIP	16602
Tycho2	3724-01137-1	Gaia DR2	449812375885626496	HD	21794	HR	1071
GC	4226	BD	BD+57 730	FK5	2252	Distance	66.93
Distance ly	218.33

ORBITAL ELEMENTS

Period (P)	14.47y	± 0.07	Periastron (T)	1990.15y	± 0.03	Semi-major axis (a)	0.12a	± 0.001
Eccentricity (e)	0.35	± 0.01	Inclination (i)	46°	± 1	Longitude of periastron (ω)	236°	± 1
Node (Ω)	235°	± 1	Notes	n		Reference	Bag2002
Equinox			Last observation	1998		Grade	2	(1=Definitive, 9=Indet.)

label	theta	rho
2000	327.4	0.102
2001	350.9	0.098
2002	15.5	0.097
2003	40.6	0.094
2004	71.3	0.078
2005	126.2	0.057
2006	188.4	0.074
2007	217.6	0.107
2008	234.1	0.130
2009	246.7	0.141
2010	258.1	0.143
2011	269.8	0.138
2012	282.9	0.128
2013	298.4	0.117
2014	317.3	0.106
2015	339.6	0.099
2016	3.9	0.097
2017	28.6	0.097
2018	55.4	0.088
2019	95.7	0.065
2020	163.8	0.061
2021	206.5	0.092
2022	227.1	0.121
2023	241.0	0.137
2024	252.7	0.143
2025	264.2	0.141
2026	276.5	0.133
2027	290.7	0.122
2028	308.0	0.111
2029	328.7	0.102
2030	352.4	0.098

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS 03337+5752 CHR 117 (HD 21794) : NOTES

discov_num	notes	refcode
CHR 117	Cf orbit in McAlister et al. (1992). High-space-velocity binary.	McA1992
	See Balega et al. (2001) for further discussion of Li abundance.	Bag2001
	Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
	masses of 2.47 +/- 0.38, 3.40, and 1.13 Msun, respectively.	Mlk2012

REFERENCES

refcode	metd	author	reference
Bag2001	S j	Balega, I.I., Balega, Yu.Yu., Hofmann, K.-H., & Weigelt, G.	2001SvAL...27...95B
Bag2001	+orb	SvAL 27, 95, 2001
Bag2002	S j	Balega, I.I., Balega, Yu.Yu., Hofmann, K.-H., Maksimov, A.F., Pluzhnik, E.A.,	2002A&A...385...87B
Bag2002	+orb	Schertl, D., Shkhagosheva, Z.U., & Weigelt, G.
Bag2002		A&A 385, 87, 2002
McA1992	orb j	McAlister, H.A., Hartkopf, W.I., & Mason, B.D.	1992AJ....104.1961M
McA1992	+Sc	AJ 104, 1961, 1992
Mlk2012	not -	Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.	2012A&A...546A..69M
Mlk2012		A&A 546, A69, 2012

DISCOVERER

idgroup	discov	author
1	CHR	Center for High Ang. Res. Astronomy (speckle interferometry systems)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
03337+5752	CHR 117		2005	20	195	0.1	6.36	6.60	F7V	NOD	033341.23+575207.1
03337+5752	CHR 117		2007	21	232	0.1	6.36	6.60	F7V	NOD	033341.23+575207.1
03337+5752	CHR 117		2009	22	259	0.1	6.36	6.60	F7V	NOD	033341.23+575207.1

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

WDS 03337+5752 CHR 117 (HD 21794) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 03337+5752 CHR 117 (HD 21794) : MEASURES

No records found.

WDS 03337+5752 (HD 21794) : VIRTUAL EYEPIECE

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

WDS 03337+5752 (HD 21794) : ALADIN DSS IMAGE @ 03^h 33^m 41.23^s +57° 52' 07.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 03337+5752 CHR 117 (HD 21794) : 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		03337+5752	CHR 117		259	0.1
Show		03336+5816	ES 121		326	8.4	24
Show		03343+5817	STF 398		332	9.6	26
Show		03328+5817	STI1993		237	5.0	27
Show		03365+5808	STI1999		49	10.3	27
Show		03340+5715	MLB 54		20	4.4	37
Show		03291+5732	MLR 663		21	0.6	42
Show		03301+5722	STI1988		265	4.9	42
Show		03285+5740	HDS 435	AB	280	0.1	44
Show		03340+5836	RAO 540		110	0.8	44
Show		03314+5842	STI1991		113	13.8	54
Show		03335+5846	STF 396	AB	245	20.5	54
Show		03335+5846	STF 396	AC	101	163.0	54
Show		03329+5850	MLR 455		45	0.2	59
Show		03269+5816	BU 1378		128	24.9	60
Show		03266+5725	SKF2001		152	9.0	64
Show		03298+5852	STI1987		46	14.5	68
Show		03421+5743	STI2002		226	8.9	68
Show		03325+5902	STI1992		237	8.0	71
Show		03319+5901	NVL 3		59	542.0	71
Show		03381+5648	STI2000		196	9.2	74
Show		03423+5725	KPP3541	AC	52	2.0	75
Show		03416+5712	STI2001		142	13.7	75
Show		03245+5826	STF 378		314	18.7	81
Show		03336+5915	STI1994		72	8.2	83
Show		03438+5726	RAO 541		241	3.5	86
Show		03346+5917	STI1998		59	7.7	86
Show		03255+5854	STI1983		195	4.0	90
Show		03393+5632	CLZ 24	AB	166	24.3	92
Show		03393+5632	JNN 258	Aa,Ab	215	0.4	92
Show		03302+5922	MCA 11	Aa,Ab	61	0.3	94
Show		03302+5922	STF 389	AB	72	2.6	94
Show		03302+5922	FOX9003	AC	208	41.2	94
Show		03265+5909	GIC 42		261	7.0	96
Show		03282+5628	ES 1777		250	2.3	96
Show		03217+5747	STI1978		3	5.2	97
Show		03400+5631	CRB 167	AB	299	25.3	97
Show		03280+5626	TDS2553		255	0.6	98
Show		03278+5627	STI1984		74	10.7	98
Show		03458+5734	A 990		83	0.1	100
Show		03279+5625	MLB 116	BC	138	13.5	100
Show		03279+5625	MLB 116	AB	46	3.9	100
Show		03279+5625	MLB 116	AC	123	13.9	100
Show		03448+5702	NI 8		315	16.5	103
Show		03465+5825	STI2005		80	8.7	107
Show		03236+5907	FOX 4		7	2.9	110
Show		03195+5816	STI1974		201	9.1	116
Show		03245+5923	STI 451		116	0.7	117
Show		03309+5558	KR 20		297	7.5	117
Show		03218+5904	ARN 61	AB	30	78.9	118
Show		03218+5904	SKF1999	AC	200	26.5	118

WDS 03337+5752 : COMPONENTS

	A
B	pa=250.1° sep=0.08"

03337+5752 A

Componente originario normalizzato	AB	Name	HD 21794	Coord arcsec 2000	033341.23+575207.1	Mag	6.36
Spectral class	F7V (yellow-white)	PmRA	7.00	PmDE	40.0	SAO	24098
HIP	16602	Tycho2	3724-01137-1	HD	21794	HR	1071
GC	4226	BD	BD+57 730	FK5	2252

Tycho2

Tycho2	3724-01137-1	Pflag		RAmdeg	53.42184349	DEmdeg	57.86872401
PmRA	7.5	PmDE	36.1	E RAmdeg	4	E DEmdeg	4
E pmRA	1.0	E pmDE	1.1	EpRAm	1991.34	EpDEm	1991.32
Num	16	Q RAmdeg	0.8	Q DEmdeg	1.0	Q pmRA	0.8
Q pmDE	0.9	BTmag	6.966	E BTmag	0.015	VTmag	6.435
E VTmag	0.010	Prox	999	TYC	T	HIP	16602
CCDM		RAdeg	53.42181111	DEdeg	57.86863944	EpRA 1990	1.66
EpDE 1990	1.56	E RAdeg	4.0	E DEdeg	4.3	Posflg
Corr	-0.1

SAO

SAO	24098	DelFlag		RA1950		PmRA1950	-0.0019
DE1950		PmDE1950	0	Vmag	6.4	SpType	F5
Double code		Source	70	CatNum	4226	DM	BD+57 730
DMcomp		BDsup		HD	21794	M HD	0
GC	4226	RA1950rad	0.9150423	DE1950rad	1.00705354	PmRA2000	-0.0021
PmDE2000	-0.003

Hipparcos

Catalog	H	HIP	16602	Proxy		RAhms	03 33 41.23
DEdms	+57 52 07.1	Vmag	6.37	VarFlag		R Vmag	H
RAdeg	53.4218	DEdeg	57.8686	AstroRef		Plx	13.91
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	21794	BD	BD+57 730
CD		CP		Dm number	+57 730	VIred	0.59
SpType	F7V	R SpType		Coord arcsec 2000	033341.23+575207.1

Hipparcos 2

HIP	16602	Sn	5	So	0	Nc	1
RArad	0.9323864029	DErad	1.0099982289	Plx	14.94	PmRA	8.83
PmDE	37.12	E RArad	0.62	E DErad	0.53	E Plx	0.75
E pmRA	0.9	E pmDE	0.85	Hpmag	6.4873	E Hpmag	0.001
SHp	0.007	VA	0	BV	0.523	E BV	0.006
VI	0.6

CCDM

Ccdm	03337+5752	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.76	DDEs	7.5
R dRAs	81	Year		Theta		Rho
Obs	2	Vmag	6.4	Sp	F7	PmNote	@
PmRA	7	PmDE	40	Dm number	+57 730	Cat1	BD
Name2	+57 419	Cat2	AGK2/3	HD	21794	M HD
ADS BDS		M ADS BDS		N IDS	W	IDS	03337+5752A
HIC	16602

03337+5752 B

Componente originario normalizzato	AB		Coord arcsec 2000	033341.22+575207.1		Mag	6.6		Calc delta mag	0.24
Calc coord	yes

CCDM

Ccdm	03337+5752	RComp		Comp	B	Note1
Note2		Discov num	CHR 117	DRAs		DDEs
R dRAs		Year	1985	Theta	154	Rho	0.1
Obs	6	Vmag		Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS	W	IDS	03337+5752B
HIC	16602