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Doubles in session


Current system
11190+1416
STF 1527
HD 98354


Nearby doubles
30' : 11210+1413
CVR1360

35' : 11167+1406
HJL1061

59' : 11151+1428
GWP1563

65' : 11208+1515
LDS4085

74' : 11159+1318
MCA 35

78' : 11243+1410
HJ 180

80' : 11243+1354
HDS1622AB

83' : 11247+1410
SKF1078

101' : 11144+1531
BU 1283

112' : 11216+1231
FMR 219

125' : 11150+1607
DEA 75

127' : 11115+1520
BPM 580

127' : 11183+1210
GWP1572

129' : 11130+1550
GWP1559

134' : 11104+1502
HEI 61

134' : 11100+1443
HEI 60

138' : 11099+1456
BPMA 44AB

138' : 11196+1158
LDS4082

138' : 11108+1524
BRT1272

143' : 11252+1608
UC 2134AB

144' : 11163+1634
KPP1004

148' : 11107+1542
GRV 830

154' : 11098+1531
TOK 716

156' : 11122+1217
CVR1348

156' : 11263+1610
HEI 157

160' : 11277+1239
LEP 42



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

11190+1416 STF 1527 (HD 98354)

 
 
11h 18m 59.91s +14° 16' 06.9" P.A. 308.00 sep 0.5 mag 7.01,7.99 Sp F9V dist. 30.74 pc (100.27 l.y.)
 
 
Coord 2000 11190+1416 Discov num STF1527 Comp Coord arcsec 2000 11 18 59.91 +14 16 06.9
Date first 1822 Date last 2021 Obs 288
Pa first 10 Pa last 307.6 P.A. Now (θ) 314.6°
Sep first 3.7 Sep last 0.513 Sep. Now (ρ) 0.587"
Mag pri 7.01 Mag sec 7.99 delta mag (ΔM) 0.98 Spectral class F9V (yellow-white)
Pri motion ra +054 Sec motion ra +054
Pri motion dec -161 Sec motion dec -161
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 98354 Constellation Leo SAO 99551 HIP 55254
Tycho2 0861-00454-1 Gaia DR2 3966863615999041536 HD 98354 GC 15557
ADS 8128 BD BD+15 2321 Distance 30.74 Distance ly 100.27
 
 
ORBITAL ELEMENTS
 
 
Period (P)415y± 15.9 Periastron (T)2010.503y± 0.042 Semi-major axis (a)2.225a± 0.045
Eccentricity (e)0.8511± 0.0033 Inclination (i)55.6°± 0.5 Longitude of periastron (ω)0.5°± 0.59
Node (Ω)188°± 0.5 Notesn ReferenceTok2012b
Equinox2000 Last observation2012 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 71.8 0.487
2001 77.7 0.442
2002 84.9 0.400
2003 93.7 0.363
2004 104.3 0.333
2005 116.7 0.312
2006 130.3 0.302
2007 144.3 0.303
2008 157.9 0.311
2009 170.5 0.323
2010 182.4 0.330
2011 194.1 0.330
2012 206.1 0.321
2013 218.9 0.309
2014 232.8 0.299
2015 247.1 0.299
2016 260.9 0.310
2017 273.4 0.332
2018 284.0 0.363
2019 292.7 0.402
2020 299.9 0.445
2021 305.7 0.491
2022 310.5 0.538
2023 314.6 0.587
2024 318.0 0.636
2025 320.9 0.686
2026 323.4 0.735
2027 325.6 0.784
2028 327.6 0.832
2029 329.3 0.880
2030 330.9 0.927


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


 
  


wds11190%2B1416e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 11190+1416 STF 1527 (HD 98354) : NOTES
 
 
discov_num notes refcode
STF1527 A premature orbit has been computed.
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
H N 142. MEv2010
Prieur et al. (2012) derive a dynamical parallax of 31.2 mas and
(using their orbital elements and the revised Hipparcos parallax of
van Leeuwen 2007 A&A 474, 653) a total mass 1.7 +/- 1.0 Msun. Pru2012
Hipparcos parallax 32.52 +/- 1.39 mas. Dynamical parallax 34.2 mas,
masses 0.98 and 0.61 Msun. STF 1527 has a long orbital period of 415y,
but it moved fast through the periastron in 2009-2012, allowing us to
compute a better orbit. Tok2012b
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 3.04 +/- 1.03, 2.06, and 1.07 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Pru2012 S j Prieur, J.-L., Scardia, M., Pansecchi, L., Argyle, R.W., & Sala, M. 2012MNRAS.422.1057P
Pru2012 +orb MNRAS 422, 1057, 2012
Tok2012b S j Tokovinin, A. 2012AJ....144...56T
Tok2012b +orb AJ 144, 56, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11190+1416 STF1527 2007 251 150 0.3 7.01 7.99 F9V NOD 111859.91+141606.9
11190+1416 STF1527 2009 257 353 0.3 7.01 7.99 F9V NOD 111859.91+141606.9
11190+1416 STF1527 2011 277 195 0.3 7.01 7.99 F9V NOD 111859.91+141606.9
11190+1416 STF1527 2012 278 209 0.3 7.01 7.99 F9V NOD 111859.91+141606.9
11190+1416 STF1527 2013 270 224 0.3 7.01 7.99 F9V NOD 111859.91+141606.9
11190+1416 STF1527 2014 271 237 0.3 7.01 7.99 F9V NO 111859.91+141606.9
11190+1416 STF1527 2017 272 279 0.4 7.01 7.99 F9V NO 111859.91+141606.9
11190+1416 STF1527 2019 282 296 0.4 7.01 7.99 F9V NO 111859.91+141606.9
11190+1416 STF1527 2020 283 302 0.5 7.01 7.99 F9V NO 111859.91+141606.9
11190+1416 STF1527 2021 287 308 0.5 7.01 7.99 F9V NO 111859.91+141606.9

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

 
 
WDS 11190+1416 STF 1527 (HD 98354) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11190+1416 STF 1527 (HD 98354) : MEASURES
 
 
No records found.

 
 
WDS 11190+1416 (HD 98354) : VIRTUAL EYEPIECE
 
 

11190+1416 STF1527A mag 7.01 Sp F9V 11190+1416 STF1527B sep 0.5 P.A. 308.50 mag 7.99 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 11190+1416 (HD 98354) : ALADIN DSS IMAGE @ 11h 18m 59.91s +14° 16' 06.9"
 
 
 
 
WDS 11190+1416 STF 1527 (HD 98354) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11190+1416 STF1527 distance=0' 11210+1413 CVR1360 distance=30' 11167+1406 HJL1061 distance=35' 11151+1428 GWP1563 distance=59' 11208+1515 LDS4085 distance=65' 11159+1318 MCA 35 distance=74' 11243+1410 HJ 180 distance=78' 11243+1354 HDS1622AB distance=80' 11243+1354 TOK 545AC distance=80' 11243+1354 TOK 545AD distance=80' 11247+1410 SKF1078 distance=83' 11144+1531 BU 1283 distance=101' 11216+1231 FMR 219 distance=112' 11150+1607 DEA 75 distance=125' 11115+1520 BPM 580 distance=127' 11183+1210 GWP1572 distance=127' 11130+1550 GWP1559 distance=129' 11104+1502 HEI 61 distance=134' 11100+1443 HEI 60 distance=134' 11099+1456 BPMA 44AB distance=138' 11196+1158 LDS4082 distance=138' 11108+1524 BRT1272 distance=138' 11182+1638 A 2379A,BC distance=142' 11182+1638 A 2379BC distance=142' 11252+1608 UC 2134AB distance=143' 11252+1608 HEI 156BC distance=143' 11163+1634 KPP1004 distance=144' 11107+1542 GRV 830 distance=148' 11098+1531 TOK 716 distance=154' 11122+1217 CVR1348 distance=156' 11263+1610 HEI 157 distance=156' 11277+1239 LEP 42 distance=160' 11260+1213 YSC 41AB distance=160' 11260+1213 GII 174Aa,Ab distance=160' 11117+1620 RAO 258 distance=163' 11256+1627 HJ 4433AB distance=163' 11256+1627 SHY 224AC distance=163' 11083+1513 SKF2630 distance=166' 11100+1237 LDS6240 distance=167' 11190+1129 HJ 179 distance=167' 11137+1147 RAO 259 distance=168' 11202+1707 HJL1062 distance=172' 11131+1646 COU 295 distance=173' 11244+1140 GOM 13 distance=176' 11290+1555 HDS1629 distance=176' 11085+1546 LEP 40 distance=177' 11065+1416 HU 885AB distance=182' 11065+1416 LEP 39AC distance=182' 11096+1618 SLW 571 distance=183' 11317+1422 STF1547AB distance=186' 11317+1422 WSI 101Aa,Ab distance=186' grafico limitrofi
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 11190+1416 STF1527 308 0.5
Show 11210+1413 CVR1360 14 4.0 30
Show 11167+1406 HJL1061 132 173.4 35
Show 11151+1428 GWP1563 237 356.9 59
Show 11208+1515 LDS4085 172 46.3 65
Show 11159+1318 MCA 35 310 0.0 74
Show 11243+1410 HJ 180 43 25.7 78
Show 11243+1354 HDS1622 AB 39 0.7 80
Show 11243+1354 TOK 545 AC 203 926.7 80
Show 11243+1354 TOK 545 AD 137 999.9 80
Show 11247+1410 SKF1078 182 0.8 83
Show 11144+1531 BU 1283 182 0.3 101
Show 11216+1231 FMR 219 111 3.6 112
Show 11150+1607 DEA 75 7 18.0 125
Show 11115+1520 BPM 580 19 30.8 127
Show 11183+1210 GWP1572 145 26.2 127
Show 11130+1550 GWP1559 90 145.6 129
Show 11104+1502 HEI 61 81 0.3 134
Show 11100+1443 HEI 60 238 0.4 134
Show 11099+1456 BPMA 44 AB 310 222.0 138
Show 11196+1158 LDS4082 91 41.3 138
Show 11108+1524 BRT1272 354 4.1 138
Show 11182+1638 A 2379 A,BC 47 27.9 142
Show 11182+1638 A 2379 BC 288 0.4 142
Show 11252+1608 UC 2134 AB 45 24.8 143
Show 11252+1608 HEI 156 BC 159 1.7 143
Show 11163+1634 KPP1004 245 8.1 144
Show 11107+1542 GRV 830 185 33.5 148
Show 11098+1531 TOK 716 249 2.6 154
Show 11122+1217 CVR1348 281 4.9 156
Show 11263+1610 HEI 157 157 1.6 156
Show 11277+1239 LEP 42 350 16.9 160
Show 11260+1213 YSC 41 AB 280 1.2 160
Show 11260+1213 GII 174 Aa,Ab 84 0.4 160
Show 11117+1620 RAO 258 113 1.6 163
Show 11256+1627 HJ 4433 AB 6 55.4 163
Show 11256+1627 SHY 224 AC 207 999.9 163
Show 11083+1513 SKF2630 129 9.6 166
Show 11100+1237 LDS6240 61 121.6 167
Show 11190+1129 HJ 179 301 16.2 167
Show 11137+1147 RAO 259 111 0.7 168
Show 11202+1707 HJL1062 187 103.6 172
Show 11131+1646 COU 295 148 0.2 173
Show 11244+1140 GOM 13 134 234.2 176
Show 11290+1555 HDS1629 341 0.5 176
Show 11085+1546 LEP 40 175 11.9 177
Show 11065+1416 HU 885 AB 254 2.1 182
Show 11065+1416 LEP 39 AC 254 668.5 182
Show 11096+1618 SLW 571 269 13.0 183
Show 11317+1422 STF1547 AB 330 15.7 186
Show 11317+1422 WSI 101 Aa,Ab 15 0.2 186

 
 
WDS 11190+1416 : COMPONENTS
 
 
  A
B pa=308.5°
sep=0.50"
 
 
11190+1416 A
 
 
Componente originario normalizzato AB Name HD 98354 Coord arcsec 2000 111859.91+141606.9 Mag 7.01
Spectral class F9V (yellow-white) PmRA 54.00 PmDE -161.0 SAO 99551
HIP 55254 Tycho2 0861-00454-1 HD 98354 GC 15557
ADS 8128 BD BD+15 2321
Tycho2
Tycho2 0861-00454-1 Pflag P RAmdeg 169.74960590 DEmdeg 14.26857020
PmRA 54.4 PmDE -161.0 E RAmdeg 5 E DEmdeg 6
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.57 EpDEm 1991.25
Num 5 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 0.9 BTmag 7.577 E BTmag 0.017 VTmag 7.009
E VTmag 0.012 Prox 9 TYC T HIP 55254
CCDM A RAdeg 169.74945056 DEdeg 14.26892750 EpRA 1990 1.69
EpDE 1990 1.43 E RAdeg 5.2 E DEdeg 5.9 Posflg D
Corr 0.3
SAO
SAO 99551 DelFlag RA1950 PmRA1950 0.0035
DE1950 PmDE1950 -0.168 Vmag 7 SpType G0
Double code Source 70 CatNum 15557 DM BD+15 2321
DMcomp BDsup HD 98354 M HD 0
GC 15557 RA1950rad 2.9512658 DE1950rad 0.25384238 PmRA2000 0.0035
PmDE2000 -0.163
Hipparcos
Catalog H HIP 55254 Proxy H RAhms 11 18 59.87
DEdms +14 16 08.2 Vmag 6.6 VarFlag R Vmag H
RAdeg 169.749 DEdeg 14.2689 AstroRef A Plx 31.17
CCDM 11190+1416 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 47 Rho 0.91 HD 98354 BD BD+15 2321
CD CP Dm number +15 2321 VIred 0.22
SpType F9V R SpType Coord arcsec 2000 111859.87+141608.2
Hipparcos 2
HIP 55254 Sn 15 So 3 Nc 2
RArad 2.9626867877 DErad 0.2490398923 Plx 32.53 PmRA 54.92
PmDE -141.05 E RArad 1.05 E DErad 1.22 E Plx 1.39
E pmRA 1.26 E pmDE 1.24 Hpmag 6.7096 E Hpmag 0.0029
SHp 0.014 VA 0 BV 0.586 E BV 0.02
VI 0.56
CCDM
Ccdm 11190+1416 RComp Comp A Note1
Note2 Discov num DRAs -0.12 DDEs 6.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.9 Sp G0 PmNote *
PmRA 47 PmDE -167 Dm number +15 2321 Cat1 BD
Name2 +14 1194 Cat2 AGK2/3 HD 98354 M HD
ADS BDS A 8128 M ADS BDS N IDS IDS 11138N1449A
HIC 55254
 
 
11190+1416 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 111859.88+141607.2 Mag 7.99 PmRA 54.00
PmDE -161.0 Tycho2 0861-00454-2 Calc delta mag 0.98 Calc coord yes
Tycho2
Tycho2 0861-00454-2 Pflag P RAmdeg 169.74960590 DEmdeg 14.26857020
PmRA 54.4 PmDE -161.0 E RAmdeg 5 E DEmdeg 6
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.57 EpDEm 1991.25
Num 5 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 0.9 BTmag 8.875 E BTmag 0.022 VTmag 7.985
E VTmag 0.015 Prox 9 TYC T HIP 55254
CCDM B RAdeg 169.74962167 DEdeg 14.26909889 EpRA 1990 1.71
EpDE 1990 1.46 E RAdeg 8.4 E DEdeg 9.8 Posflg D
Corr 0.3
CCDM
Ccdm 11190+1416 RComp Comp B Note1 *
Note2 Discov num STF1527 DRAs DDEs
R dRAs Year 1957 Theta 026 Rho 2.2
Obs 99 Vmag 8.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8128 M ADS BDS N IDS IDS 11138N1449B
HIC 55254