17419+7209 STF 2241 CD

Coord 2000	17419+7209		Discov num	STF2241		Comp	CD		Coord arcsec 2000	17 42 12.75 +72 08 31.8
Date first	1908		Date last	2015		Obs	8
Pa first	19		Pa last	18.5		P.A. Now (θ)	18.5°
Sep first	67.6		Sep last	69.403		Sep. Now (ρ)	69.403"
Mag pri	11.05		Mag sec	12.98		delta mag (ΔM)	1.93		Spectral class
Pri motion ra	-024		Sec motion ra	+000
Pri motion dec	-022		Sec motion dec	-009
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.838 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Dziban	8890	17 41 56 +72 08 56	STF 2241 AB	2019	183	14	29.6	4.60	5.59	0.99	Y
Show		8890	17 41 56 +72 08 56	STF 2241 AC	2004	14	107	78.1	4.60	11.05	6.45
Show		8890	17 41 56 +72 08 56	STF 2241 AD	2004	3	66	105.9	4.60	12.98	8.38
Show		8890	17 41 56 +72 08 56	PIN 11 AE	1999	1	144	69.0	3.50	14.18	10.68
Show			17 42 13 +72 08 32	STF 2241 CD	2015	8	19	69.4	11.05	12.98	1.93		<===

Quintuple system
5 estimated visually detectable stars in this system

Constellation

Draco

Gaia DR2

1651265773984625536

discov_num	notes	refcode
STF2241	psi 1 Dra = Dziban. LDS1874. B is BD+72@805.
	CHARA Array Limb-darkened diameter 0.949 +/- 0.026 mas,	CIA2012e
	R = 2.329 +/- 0.067 \rsun, L = 6.343 +/-0.153 \lsun,
	Teff = 6014 +/- 90 K, M = 1.311 +/- 0.016 \msun,
	Age = 3.8 +/- 0.1 Gyr.
	A premature orbit has been computed.
	A family of possible orbital solutions are determined by Romanenko	Rmn1994
	(1994), with periods ranging from 5,200 to 120,000 years, using the
	method of apparent motion parameters and incorporating parallax and
	radial velocity information.
STF2241	AB: H 4 7.	MEv2010
	31 Dra. Toyota et al. (2009) monitored the RV of both the A and B
	components every 1-2 months between 2003 Mar - 2007 Nov, using a
	high-dispersion echelle (precision ~10 m/s). The A component exhibits
	a linear trend in RV, with a slope +220 m/s/y. Toyota et al. assert
	that these variations are due to an unseen companion. Assuming a
	circular orbit, period is estimated at 3200d; minimum mass of the
	unseen star ~50 Mjup. Standard deviation of radial velocities for the
	B component <40 m/s and velocities show no periodic variation. This
	result rejects the association of a planet of mass > 1.8 Mjup	Toy2009
	AC: Rectilinear solution by Hurowitz et al. (2014).	USN2014a

refcode	metd	author	reference
CIA2012e	not j	Boyajian, T.S., McAlister, H.A., van Belle, G., Gies, D.R., ten Brummelaar, T.A.,	2012ApJ...746..101B
CIA2012e		von Braun, K., Farrington, C., Goldfinger, P.J., O'Brien, D., Parks, J.R.,	.
CIA2012e		Richardson, N.D., Ridgway, S., Schaefer, G., Sturmann, L., Sturmann, J., Touhami,	.
CIA2012e		Y., Turner, N.H. & White, R.	.
CIA2012e		ApJ 746, 101, 2012	.
MEv2010	-	MacEvoy, B.	...................
MEv2010		private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Rmn1994	orb -	Romanenko, L.G.	1994ARep...38..779R
Rmn1994		SvA 71, 875, 1994 (ARep 38, 779, 1994)
Toy2009	rv -	Toyota, E., Itoh, Y., Ishiguma, S., Urakawa, S., Murata, D., Oasa, Y.,	2008PASJ...61...19T
Toy2009		Matsuyama, H., Funayama, H., Sato, B., & Mukai, T.
Toy2009		PASJ 61, 19, 2009
USN2014a	lin -	Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D.	2014IAUDS.182....1H
USN2014a		Inf. Circ. 182, 1, 2014

idgroup	discov	author
1	PIN	Pinfield, D.J., Jones, H.R.A., Lucas, P.W., Kendall, T.R., Folkes, S.L.,
1	PIN	Day-Jones, A.C., Chappelle, R.J., & Steele, I.A.
2	PIN	Pinfield, D.J., Burningham, B., Lodieu, N., Leggett, S.K., Tinney, C.G.,
2	PIN	van Spaandonk, L., Marocco, F., Smart, R., Gomes, J., Smith, L., Lucas, P.W.,
2	PIN	Day-Jones, A.C., et al.
3	STF	Struve, F.G.W.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17419+7209	STF2241	CD	1908	1	19	67.6	11.40	12.90		N	174213.30+720811.0
17419+7209	STF2241	CD	1999	2	19	69.1	11.40	12.90		N D	174212.75+720831.8
17419+7209	STF2241	CD	2004	3	18	69.2	11.30	12.70		NUD	174212.75+720831.8
17419+7209	STF2241	CD	2015	4	19	69.3	11.05	12.98		NU	174212.75+720831.8

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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 17419+7209 STF2241 CD 19 69.4 Show Dziban 17419+7209 STF2241 AB 14 29.6 2 Show Dziban 17419+7209 STF2241 AC 107 78.1 2 Show Dziban 17419+7209 STF2241 AD 66 105.9 2 Show Dziban 17419+7209 PIN 11 AE 144 69.0 2 Show 17411+7225 GIC 148 28 89.6 18 Show 17418+7140 MLR 202 112 0.3 29 Show 17397+7256 H 1 41 335 0.9 49 Show 17386+7120 WOR 7 228 8.5 52 Show 17289+7208 KPP1876 AB 179 14.6 62 Show 17494+7306 LDS1878 106 10.1 66 Show 17373+7105 LDS1872 71 3.9 69 Show 17377+7102 HEI 863 AB 9 4.1 71 Show 17377+7102 HEI 863 AC 84 4.9 71 Show 17394+7059 SKF2736 260 14.0 71 Show 17464+7059 UC 3402 2 10.2 73 Show 17284+7255 TDT 369 166 0.5 78 Show 17279+7112 A 1154 248 0.9 88 Show 17227+7147 CBL 516 160 10.3 93 Show 18022+7151 UC 235 353 32.8 95 Show 17254+7306 TDT 343 182 1.7 95 Show 17299+7050 TDT 381 320 0.8 99 Show 17350+7344 WIS 319 94 556.4 101 Show 17245+7111 LDS1866 343 5.1 102 Show 17231+7313 TDT 329 273 0.8 107 Show 17266+7331 MLR 201 261 0.4 108 Show 17393+7020 A 1372 83 1.1 113 Show 17420+7005 CRB 200 198 14.6 124 Show 17232+7350 CBL 68 358 44.7 132 Show 17334+7414 LDS1871 232 33.3 132 Show 17535+7009 A 1373 334 2.8 132 Show 17315+7412 MLR 204 51 3.2 132 Show 17536+7417 MLR 211 189 2.5 138 Show 17413+6948 HZG 11 287 3.1 141 Show 17531+7423 LDS1880 AB 55 2.6 144 Show 17292+7426 LDS1868 133 3.0 149 Show 17296+6953 MLR 188 197 1.8 150 Show 17295+6953 UR 11 3 5.5 150 Show 17285+7430 A 1155 287 0.6 154 Show 17417+7442 TDT 466 126 0.7 154 Show 17249+7431 SKF1053 226 3.1 161 Show 17425+7456 MLR 207 135 0.2 168 Show 17427+7459 UC 3388 305 47.7 171 Show 17338+7503 UC 232 1 13.7 178 Show 17370+6845 FOX 203 249 77.2 205 Show 17571+6849 LDS1459 141 17.4 213 Show 17326+6834 LDS9182 AB,C 193 22.6 219 Show 17326+6834 DAM1455 AB 214 1.0 219 Show 17474+7549 MLR 210 82 0.6 222 Show 17295+7547 UC 3353 333 14.7 226 Show 17364+6820 CHR 62 Aa,Ab 352 0.3 228

	A	B	C	D
B	pa=4.4° sep=28.80"
C	pa=107.7° sep=79.11"	pa=125.8° sep=90.18"
D	pa=34.4° sep=52.40"	pa=62.1° sep=31.01"	pa=325.8° sep=81.31"
E	pa=167.5° sep=57.27"	pa=173.1° sep=85.24"	pa=243.1° sep=70.62"	pa=189.8° sep=100.62"

Common name	Dziban		Meaning	the two jackals		Other names	DSIBAN		Coord arcsec 2000	174156.36+720855.8
Mag	4.6		Spectral class	F5IV (yellow-white)		PmRA	27.00		PmDE	-270.0
SAO	8890		HIP	86614		Tycho2	4436-01425-1		HD	162003
HR	6636		GC	24089		ADS	10759		BD	BD+72 804
Bayer	Psi 1 Draconis		Bayer name	Psi1 Dra		Flamsteed	31 Draconis		Flamsteed name	31 Dra
FK5	670

Tycho2	4436-01425-1		Pflag			RAmdeg	265.48480656		DEmdeg	72.14884700
PmRA	25.4		PmDE	-267.8		E RAmdeg	4		E DEmdeg	3
E pmRA	0.6		E pmDE	0.7		EpRAm	1990.86		EpDEm	1991.38
Num	16		Q RAmdeg	2.2		Q DEmdeg	1.0		Q pmRA	2.7
Q pmDE	1.1		BTmag	5.057		E BTmag	0.014		VTmag	4.600
E VTmag	0.009		Prox	302		TYC	T		HIP	86614
CCDM	A		RAdeg	265.48461611		DEdeg	72.14946139		EpRA 1990	1.65
EpDE 1990	1.74		E RAdeg	3.5		E DEdeg	3.4		Posflg
Corr	0.1

SAO	8890		DelFlag			RA1950			PmRA1950	0.0033
DE1950			PmDE1950	-0.267		Vmag	4.9		SpType	F5
Double code			Source	74		CatNum	670		DM	BD+72 804
DMcomp			BDsup			HD	162003		M HD	0
GC	24089		RA1950rad	4.63743304		DE1950rad	1.25967303		PmRA2000	0.0056
PmDE2000	-0.267

Catalog	H		HIP	86614		Proxy			RAhms	17 41 56.31
DEdms	+72 08 58.2		Vmag	4.57		VarFlag			R Vmag	H
RAdeg	265.485		DEdeg	72.1495		AstroRef	A		Plx	45.38
CCDM	17420+7209		N CCDM	I		Nsys	2		Ncomp	1
MultFlag	C		Source	P		Qual	D		M HIP
Theta			Rho			HD	162003		BD	BD+72 804
CD			CP			Dm number	+72 804		VIred	0.49
SpType	F5IV-V		R SpType			Coord arcsec 2000	174156.31+720858.2

HIP	86614		Sn	95		So	3		Nc	1
RArad	4.6335806147		DErad	1.2592463153		Plx	43.79		PmRA	25.32
PmDE	-268.47		E RArad	0.39		E DErad	0.34		E Plx	0.45
E pmRA	0.43		E pmDE	0.54		Hpmag	4.6681		E Hpmag	0.0042
SHp	0.005		VA	0		BV	0.434		E BV	0.004
VI	0.5

Coord arcsec 2000	174156.84+720924.5		Mag	5.59		Spectral class	F8V (yellow-white)		PmRA	29.00
PmDE	-277.0		SAO	8891		HIP	86620		Tycho2	4436-01424-1
HD	162004		HR	6637		GC	24090		ADS	10759
BD	BD+72 805		Flamsteed	31 Draconis		Flamsteed name	31 Dra		Calc delta mag	0.99
Calc coord	yes

Tycho2	4436-01424-1		Pflag			RAmdeg	265.49206731		DEmdeg	72.15690621
PmRA	29.3		PmDE	-277.2		E RAmdeg	4		E DEmdeg	4
E pmRA	1.4		E pmDE	1.3		EpRAm	1991.50		EpDEm	1991.65
Num	9		Q RAmdeg	2.0		Q DEmdeg	1.0		Q pmRA	2.0
Q pmDE	1.0		BTmag	6.141		E BTmag	0.014		VTmag	5.586
E VTmag	0.009		Prox	302		TYC	T		HIP	86620
CCDM	B		RAdeg	265.49184444		DEdeg	72.15753972		EpRA 1990	1.62
EpDE 1990	1.77		E RAdeg	3.7		E DEdeg	3.6		Posflg
Corr	0.0

SAO	8891		DelFlag			RA1950			PmRA1950	0.0041
DE1950			PmDE1950	-0.278		Vmag	6.1		SpType	F5
Double code			Source	70		CatNum	24090		DM	BD+72 805
DMcomp			BDsup			HD	162004		M HD	0
GC	24090		RA1950rad	4.63755286		DE1950rad	1.25981444		PmRA2000	0.0065
PmDE2000	-0.278

Catalog	H		HIP	86620		Proxy			RAhms	17 41 58.04
DEdms	+72 09 27.3		Vmag	5.81		VarFlag			R Vmag	G
RAdeg	265.492		DEdeg	72.1576		AstroRef	B		Plx	44.8
CCDM	17420+7209		N CCDM	I		Nsys	2		Ncomp	1
MultFlag	C		Source	I		Qual	D		M HIP
Theta			Rho			HD	162004		BD	BD+72 805
CD			CP			Dm number	+72 805		VIred	0.6
SpType	G0V		R SpType			Coord arcsec 2000	174158.04+720927.3

HIP	86620		Sn	95		So	3		Nc	1
RArad	4.6337064965		DErad	1.2593872767		Plx	43.36		PmRA	34.89
PmDE	-275.94		E RArad	0.41		E DErad	0.37		E Plx	0.51
E pmRA	0.48		E pmDE	0.59		Hpmag	5.868		E Hpmag	0.0096
SHp	0		VA	0		BV	0.53		E BV	0
VI	0.6

Coord arcsec 2000	174212.75+720831.8		Coord calc	174212.75+720831.8		Mag	11.05		PmRA	-24.00
PmDE	-22.0		Calc delta mag	6.45

Coord arcsec 2000	174202.80+720939.0		Mag	12.98		PmRA	0.00		PmDE	-9.0
Calc delta mag	8.38		Calc coord	yes

Coord arcsec 2000	174159.06+720759.9		Mag	14.18		Spectral class	L? (very deep red)		Calc delta mag	9.58
Calc coord	yes