01071-0036 HDS 144 AB (HD 6639)

Coord 2000	01071-0036		Discov num	HDS 144		Comp	AB		Coord arcsec 2000	01 07 04.52 -00 35 31.3
Date first	1991		Date last	2019		Obs	16
Pa first	308		Pa last	122.1		P.A. Now (θ)	122.1°
Sep first	0.3		Sep last	0.378		Sep. Now (ρ)	0.378"
Mag pri	9.21		Mag sec	11.76		delta mag (ΔM)	2.55		Spectral class	K0 (yellow-orange)
Pri motion ra	-034		Sec motion ra
Pri motion dec	-029		Sec motion dec
Notes	O (Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 6639	129127	01 07 05 -00 35 31	HDS 144 AB	2019	16	122	0.4	9.21	11.76	2.55	Y	<===
Show		129127	01 07 05 -00 35 31	BAG 12 AC	2019	12	147	1.4	9.21	12.18	2.97

Triple system
3 estimated visually detectable stars in this system

Name	HD 6639		Constellation	Cetus		SAO	129127		HIP	5245
Tycho2	4681-00667-1		HD	6639		BD	BD-01 147		Distance	52.44
Distance ly	171.06

Period (P)	72.6y		Periastron (T)	2073.1y		Semi-major axis (a)	0.365a
Eccentricity (e)	0.237		Inclination (i)	138.2°		Longitude of periastron (ω)	30°
Node (Ω)	281.9°		Notes			Reference	Tok2014a
Equinox	2000		Last observation	2013		Grade	4	(1=Definitive, 9=Indet.)

label theta rho 2000 262.0 0.267 2001 255.1 0.258 2002 247.7 0.250 2003 239.8 0.242 2004 231.3 0.235 2005 222.4 0.229 2006 213.1 0.226 2007 203.7 0.226 2008 194.4 0.228 2009 185.5 0.234 2010 177.0 0.242 2011 169.2 0.253 2012 162.0 0.265 2013 155.5 0.278 2014 149.6 0.292 2015 144.3 0.307 2016 139.4 0.321 2017 135.0 0.335 2018 130.9 0.349 2019 127.1 0.362 2020 123.6 0.374 2021 120.3 0.385 2022 117.1 0.396 2023 114.1 0.405 2024 111.3 0.413 2025 108.5 0.420 2026 105.9 0.426 2027 103.3 0.431 2028 100.7 0.435 2029 98.2 0.438 2030 95.7 0.440		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

No records found.

refcode	metd	author	reference
Tok2014a	orb j	Tokovinin, A., Mason, B.D., & Hartkopf, W.I.	2014AJ....147..123T
Tok2014a	+St	AJ 147, 123, 2014 (some measures corrected in Tok2017b)	2017AJ....154..110T

idgroup	discov	author
1	BAG	Balega, Y.Y. & Tikhonov, N.A.
24	BAG	Balega, I.I., Balega, Y.Y., Belkin, I.N., Maximov, A.F., Orlov, V.G., Pluzhnik,
24	BAG	E.A., Shkhagosheva, Z.U., & Vasyuk, V.A.
25	BAG	Balega, I.I., Balega, Yu.Yu., Falcke, H., Osterbart, R., Reinheimer, T., Scholler,
25	BAG	M., & Weigelt, G.
30	BAG	Balega, I.I., Balega, Y.Y., Maksimov, A.F., Pluzhnik, E.A., Shkhagosheva, Z.U., &
30	BAG	Vasyuk, V.A.
35	BAG	Balega, I.I., Balega, Yu.Yu., Hofmann, K.-H., Maksimov, A.F., Pluzhnik, E.A.,
35	BAG	Schertl, D., Shkhagosheva, Z.U., & Weigelt, G.
38	BAG	Balega, I.I., Balega, Y.Y., Maksimov, A.F., Pluzhnik, E.A., Schertl, D.,
38	BAG	Shkhagosheva, Z.U., & Weigelt, G.
41	BAG	Balega, I.I., Balega, Y.Y., Hofmann, K.-H., Pluzhnik, E.A., Schertl, D.,
41	BAG	Shkhagosheva, Z.U., & Weigelt, G.
44	BAG	Balega, I.I., Balega, Y.Y., Hoffmann, K.-H., Malogolovets, E., Schertl, D.,
44	BAG	Shkhagosheva, Z.U., & Weigelt, G.
46	BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Pluzhnik, E.A.,
46	BAG	& Shkhagosheva, Z.
47	BAG	Balega, Y.Y., Beuzit, J.-L., Delfosse, X., Forveille, T., Perrier, C., Mayor, M.,
47	BAG	Segransan, D., Udry, S., et al.
48	BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Rastegaev, D.A.,
48	BAG	Shkhagosheva, Z.U., & Weigelt, G.
55	BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
55	BAG	Rastegaev, D.A., & Romanyuk, I.I.
56	BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
56	BAG	Rastegaev, D.A., & Romanyuk, I.I.
57	BAG	Balega, I.I., Balega, Yu.Yu., Gasanova, L.T., Dyachenko, V.V., Maksimov, A.F.,
57	BAG	Malogolovets, E.V., Rastegaev, D.A., & Shkhagosheva, Z.U.
60	HDS	Hipparcos Double Star (from additional DD list)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01071-0036	HDS 144	AB	1999	3	263	0.3	9.21	11.76	K0		010704.52-003531.3
01071-0036	HDS 144	AB	2008	6	5	0.2	9.21	11.76	K0		010704.52-003531.3
01071-0036	HDS 144	AB	2011	10	169	0.3	9.21	11.76	K0	OD	010704.52-003531.3
01071-0036	HDS 144	AB	2013	11	151	0.3	9.21	11.76	K0	O	010704.52-003531.3
01071-0036	HDS 144	AB	2015	12	137	0.3	9.21	11.76	K0	O	010704.52-003531.3
01071-0036	HDS 144	AB	2017	15	129	0.3	9.21	11.76	K0	O	010704.52-003531.3
01071-0036	HDS 144	AB	2019	16	122	0.4	9.21	11.76	K0	O	010704.52-003531.3

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

No records found.


No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

FoV: 30" 1' 5' 15' 30' 1° 2° 4° 5° 8° Limit: 2 3 4 5 10 15 20 25 30 50 100 Primaries only
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Show name coord_2000 discov# comp pa sep dist(') Show 01071-0036 HDS 144 AB 122 0.4 Show 01071-0036 BAG 12 AC 147 1.4 Show 01074+0101 LDS5315 272 14.2 9 Show 01065+0031 HJ 632 122 20.9 10 Show 01068-0015 HJ 2016 359 22.4 21 Show 01085-0039 SKF 997 81 1.4 22 Show 01084+0043 HJ 2020 49 9.4 23 Show 01063-0016 HDS 141 15 0.3 24 Show 01086+0046 SKF 998 257 1.6 26 Show 01091-0047 SKF 999 190 1.8 32 Show 01047+0029 RST4744 104 0.4 36 Show 01094-0049 SKF1000 266 3.6 37 Show 01094+0057 SKF1001 34 3.8 42 Show 01079+0116 LDS5319 AB 199 38.9 42 Show 01079+0116 LDS5319 AC 269 164.6 42 Show 01043+0027 OSW 64 37 102.8 43 Show 01103-0057 WAA 18 215 9.2 52 Show 01033-0009 ITF 76 312 6.2 62 Show 01028+0049 LDS5311 205 163.2 67 Show 01038+0122 STF 84 AB 253 16.0 68 Show 01038+0122 BU 1355 AC 291 119.2 68 Show 01087+0138 TDS1784 249 0.5 68 Show 01048+0135 A 2310 312 0.3 69 Show 01029+0005 SKF2620 295 1.9 71 Show 01068+0147 DAM 868 200 3.5 72 Show 01023+0026 CBL 205 63.9 73 Show 01091+0141 KPP 68 329 3.3 73 Show 01067+0149 LDS3233 213 175.3 74 Show 01117+0011 SLW 55 56 126.1 74 Show 01021+0039 BAL 950 223 6.2 76 Show 01065+0154 HDO 42 260 9.0 78 Show 01044+0147 DOO 26 180 1.9 82 Show 01129+0057 SKF1662 84 3.6 90 Show 01009-0052 HJL1008 111 98.5 95 Show 01006-0014 RST4743 296 2.3 100 Show 01073+0219 BAL1253 97 4.2 104 Show 01084-0108 SKF 996 158 1.1 106 Show 00594+0047 STF 80 AB 339 29.9 116 Show 00594+0047 BU 1354 AC 267 178.2 116 Show 00594+0047 BU 1354 BC 258 171.1 117 Show 00593-0040 A 1902 220 0.4 117 Show 01028+0214 A 2308 306 0.4 118 Show 00593+0055 BAL 949 338 17.1 119 Show 01148-0058 BUP 18 AB 265 111.6 119 Show 01148-0058 BUP 18 AC 227 217.8 119 Show 01142+0130 HDS 162 110 0.3 120 Show 01092+0233 A 2311 39 4.4 122 Show 01020+0214 LDS3221 242 10.4 124 Show 01075+0244 GWP 131 110 11.5 129 Show 01157+0032 LDS5326 335 189.5 136 Show 01021-0117 CVR 362 289 13.4 136

	A	B
B	pa=122.1° sep=0.38"
C	pa=146.8° sep=1.42"	pa=155.1° sep=1.09"

Name	HD 6639		Coord arcsec 2000	010704.52-003531.3		Mag	9.21		Spectral class	K0 (yellow-orange)
PmRA	-34.00		PmDE	-29.0		SAO	129127		HIP	5245
Tycho2	4681-00667-1		HD	6639		BD	BD-01 147

Tycho2	4681-00667-1		Pflag			RAmdeg	16.76872276		DEmdeg	-0.59211615
PmRA	-40.5		PmDE	-36.6		E RAmdeg	12		E DEmdeg	14
E pmRA	0.9		E pmDE	1.0		EpRAm	1986.54		EpDEm	1986.10
Num	15		Q RAmdeg	1.6		Q DEmdeg	1.4		Q pmRA	1.7
Q pmDE	1.4		BTmag	10.035		E BTmag	0.033		VTmag	9.073
E VTmag	0.021		Prox	999		TYC	T		HIP	5245
CCDM	AB		RAdeg	16.76882417		DEdeg	-0.59203028		EpRA 1990	1.59
EpDE 1990	1.57		E RAdeg	14.3		E DEdeg	15.9		Posflg	P
Corr	-0.2

SAO	129127		DelFlag			RA1950			PmRA1950	-0.0033
DE1950			PmDE1950	-0.005		Vmag	8.8		SpType	K0
Double code			Source	31		CatNum	215		DM	BD-01 147
DMcomp			BDsup			HD	6639		M HD	0
GC			RA1950rad	0.28151435		DE1950rad	-0.01498176		PmRA2000	-0.0031
PmDE2000	-0.01

Catalog	H		HIP	5245		Proxy	H		RAhms	01 07 04.52
DEdms	-00 35 31.3		Vmag	8.96		VarFlag			R Vmag	H
RAdeg	16.7688		DEdeg	-0.592022		AstroRef	*		Plx	18.53
CCDM	01071-0036		N CCDM	H		Nsys	1		Ncomp	2
MultFlag	C		Source			Qual	B		M HIP	AB
Theta	308		Rho	0.281		HD	6639		BD	BD-01 147
CD			CP			Dm number	-01 147		VIred	1.03
SpType	K0		R SpType			Coord arcsec 2000	010704.52-003531.3

HIP	5245		Sn	55		So	3		Nc	2
RArad	0.2926711989		DErad	-0.010332753		Plx	19.07		PmRA	-34.87
PmDE	-29.34		E RArad	1.07		E DErad	0.9		E Plx	1.19
E pmRA	1.31		E pmDE	1		Hpmag	9.1098		E Hpmag	0.0015
SHp	0.016		VA	0		BV	0.84		E BV	0.031
VI	0.86

Ccdm	01071-0036		RComp			Comp	A		Note1
Note2			Discov num			DRAs	-1.50		DDEs	28.5
R dRAs	82		Year			Theta			Rho
Obs	2		Vmag	9.2		Sp	K0		PmNote	*
PmRA	-34		PmDE	-29		Dm number	-01 147		Cat1	BD
Name2	-00 117		Cat2	AGK2/3		HD	6639		M HD
ADS BDS			M ADS BDS			N IDS			IDS
HIC	5245

Coord arcsec 2000

010704.54+003531.1

Mag

11.76

Calc delta mag

2.55

Calc coord

yes

Ccdm	01071-0036		RComp			Comp	B		Note1
Note2			Discov num	HDS		DRAs	-1.52		DDEs	28.6
R dRAs	82		Year	1991		Theta	308		Rho	0.3
Obs	1		Vmag	11.8		Sp			PmNote	*
PmRA	-34		PmDE	-29		Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS			M ADS BDS			N IDS			IDS
HIC	5245

Coord arcsec 2000

010704.57+003530.1

Mag

12.18

Calc delta mag

2.97

Calc coord

yes