16341+4226 LAB 4 (Sig Her)

 
 
16h 34m 06.19s +42° 26' 12.8" P.A. 15.00 sep 0.1 mag 4.20,7.70 Sp B9V dist. 96.53 pc (314.88 l.y.)
 
 
Coord 2000 16341+4226 Discov num LAB   4 Comp Coord arcsec 2000 16 34 06.19 +42 26 12.8
Date first 1972 Date last 2008 Obs 69
Pa first 179 Pa last 14.9 P.A. Now (θ) 16.2°
Sep first 0.1 Sep last 0.113 Sep. Now (ρ) 0.113"
Mag pri 4.20 Mag sec 7.70 delta mag (ΔM) 3.5 Spectral class B9V (blue-white)
Pri motion ra -011 Sec motion ra
Pri motion dec +046 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Sig Her Var name NSV7837 Her Constellation Hercules SAO 46161
HIP 81126 Tycho2 3066-02213-1 Gaia DR2 1357126587985344896 HD 149630
HR 6168 GC 22296 BD BD+42 2724 Bayer Sigma Herculis
Bayer name Sig Her Flamsteed 35 Herculis Flamsteed name 35 Her FK5 621
Distance 96.53 Distance ly 314.88 Bayer greek σ Her
 
 
ORBITAL ELEMENTS
 
 
Period (P)2706.19d (7.41y)± 4.89 Periastron (T)50665.4d (1997.593y)± 2.68 Semi-major axis (a)76.21m± 0.27
Eccentricity (e)0.5135± 0.0028 Inclination (i)105.25°± 0.51 Longitude of periastron (ω)184.97°± 0.4
Node (Ω)14.95°± 0.47 Notesn ReferenceNOI2016
Equinox2000 Last observation2004 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 20.5 0.099
2001-01-01 15.1 0.115
2002-01-01 10.1 0.107
2003-01-01 2.6 0.076
2004-01-01 329.4 0.024
2005-01-01 193.7 0.037
2006-01-01 45.3 0.032
2007-01-01 23.6 0.085
2008-01-01 17.1 0.111
2009-01-01 12.2 0.113
2010-01-01 6.3 0.092
2011-01-01 352.4 0.047
2012-01-01 217.7 0.026
2013-01-01 120.0 0.014
2014-01-01 28.1 0.067
2015-01-01 19.4 0.104
2016-01-01 14.2 0.115
2017-01-01 9.0 0.103
2018-01-01 0.4 0.068
2019-01-01 299.2 0.016
2020-01-01 184.3 0.032
2021-01-01 37.0 0.043
2022-01-01 22.1 0.092
2023-01-01 16.2 0.113
2024-01-01 11.3 0.111
2025-01-01 4.8 0.086
2026-01-01 345.8 0.037
2027-01-01 204.8 0.034
2028-01-01 70.3 0.019
2029-01-01 25.8 0.075
2030-01-01 18.3 0.107


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



 
 


wds16341%2B4226c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 16341+4226 LAB 4 (Sig Her) : NOTES
 
 
discov_num notes refcode
LAB 4 sig Her = 35 Her. Double-lined spectrum.
1972.28, 1973.45: Two of the three observations yielded fringes in the
Fourier transform which were quite different; this is difficult to
reconcile with the 50-yr period estimated from Kepler's law. Lab1974
This object was misidentified as tau Her by McAlister (1978). The McA1978c
observation on 1976.2963 which was reported there as yielding a
negative result does indeed show duplicity, as was correctly reported
by McAlister later that year. The negative result reported in the McA1978b
earlier paper for 1976.2991 is spurious.
1977.1781: This is a previously unpublished photographic measure.
1977.3284: Theta incorrectly given as 5.7 deg by McAlister & Hendry McA1982b
(1982); correct value published by McAlister et al. (1989) McA1989
1983.3098: Very poor atmospheric conditions. Bag1984a
Measure of 1988.258 made by MAPPIT. Naj1989
Martin et al. (1998) derive component masses 3.036 +/- 0.714 and
1.498 +/- 0.519 Msun. Mig1998
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 6.05 +/- 1.14, 6.07, and 2.57 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Bag1984a S j Balega, Y.Y. & Ryadchenko, V.P. 1984SvAL...10...95B
Bag1984a SvAL 10, 95, 1984
Lab1974 S j Labeyrie, A., Bonneau, D., Stachnik, R.V., & Gezari, D.Y. 1974ApJ...194L.147L
Lab1974 +orb ApJ 194, L147, 1974
Lab1974 (data from Hale 5m, KPNO 3.8m, 2.1m. Aperture listed as mean value of 3.6m unless
Lab1974 specifically given in paper)
McA1978b Sc j McAlister, H.A. 1978ApJ...225..932M
McA1978b ApJ 225, 932, 1978
McA1978c Sc j McAlister, H.A. 1978PASP...90..288M
McA1978c PASP 90, 288, 1978
McA1982b Sc j McAlister, H.A. & Hendry, E.M. 1982ApJS...48..273M
McA1982b ApJS 48, 273, 1982
McA1989 Sc j McAlister, H.A., Hartkopf, W.I., Sowell, J.R., Dombrowski, E.G., & Franz, O.G. 1989AJ.....97..510M
McA1989 AJ 97, 510, 1989
Mig1998 orb - Martin, Ch., Mignard, F., Hartkopf, W.I., & McAlister, H.A. 1998A&AS..133..149M
Mig1998 A&AS 133, 149, 1998
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Naj1989 Sa j Nakajima, T., Kulkarni, S.R., Gorham, P.W., Ghez, A.M., Neugebauer, G., Oke, J.B., 1989AJ.....97.1510N
Naj1989 Prince, T.A., & Readhead, A.C.S.
Naj1989 AJ 97, 1510, 1989
NOI2016 Kn j Hutter, D.J., Zavala, R.T., Tycner, C., Benson, J.A., Hummel, C.A., Sanborn, J., 2016ApJS..227....4H
NOI2016 Franz, O.G., & Johnston, K.J.
NOI2016 ApJS 227, 4, 2016
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16341+4226 LAB 4 2008 48 15 0.1 4.20 7.70 B9V NOD 163406.19+422612.8

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

 
 
WDS 16341+4226 LAB 4 (Sig Her) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16341+4226 LAB 4 (Sig Her) : MEASURES
 
 
No records found.

 
 
WDS 16341+4226 (Sig Her) : VIRTUAL EYEPIECE
 
 

16341+4226 LAB   4A mag 4.2 Sp B9V 16341+4226 LAB   4B sep 0.1 P.A. 11.10 mag 7.7 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 16341+4226 (Sig Her) : ALADIN DSS IMAGE @ 16h 34m 06.19s +42° 26' 12.8"
 
 
 
 
WDS 16341+4226 LAB 4 (Sig Her) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


16341+4226  LAB   4 distance=0' 16367+4230  COU1451 distance=30' 16360+4203  GRV1123 distance=32' 16352+4326  ES  631 distance=62' 16398+4226  LAW  26Aa,Ab distance=64' 16398+4226  LAW  26AB distance=64' 16306+4333  A  1861 distance=77' 16273+4240  UC 3171 distance=77' 16324+4344  CVR 829 distance=80' 16268+4226  GRV1219 distance=82' 16271+4255  BU  815AB distance=83' 16271+4255  BU  815AD distance=83' 16271+4255  BU  815AC distance=83' 16271+4255  BU  815BC distance=83' 16396+4125  FMR 126 distance=87' 16299+4347  CVR1667 distance=94' 16274+4336  CBL 507 distance=102' 16304+4044  HDS2331 distance=111' 16441+4203  J   400 distance=114' 16422+4112  STF2091 distance=117' 16239+4304  UC 3162 distance=120' 16250+4121  LDS4669 distance=120' 16420+4340  GRV1125 distance=120' 16445+4153  LEP 150 distance=121' 16416+4428  L    14 distance=121' 16234+4251  ARG  76 distance=121' 16451+4249  TDT  66 distance=124' 16439+4329  D    15 distance=125' 16231+4206  LDS4663 distance=125' 16425+4100  TDT  41 distance=128' 16409+4411  BOW9001 distance=129' 16430+4355  KU   54 distance=132' 16321+4014  ES 1646 distance=133' 16444+4346  TOB 135 distance=139' 16326+4007  STT 313 distance=141' 16461+4142  JNN 148 distance=141' 16405+4020  ES 1647 distance=145' 16420+4031  BRT 339 distance=146' 16327+3959  STF2065AB distance=148' 16327+3959  STF2065AC distance=148' 16283+4441  OSO  71 distance=149' 16476+4255  COU1452AB distance=152' 16476+4255  GII   3AC distance=152' 16415+4436  HDS2369 distance=153' 16450+4402  LDS4691 distance=153' 16429+4028  CVR 838 distance=155' 16202+4212  SKF 280 distance=155' 16476+4319  A   574 distance=158' 16212+4118  FAR  46 distance=160' 16480+4309  GRV1127 distance=162' 16400+3958  GRV1124 distance=163' 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 16341+4226 LAB 4 15 0.1
Show 16367+4230 COU1451 1 1.1 30
Show 16360+4203 GRV1123 277 12.0 32
Show 16352+4326 ES 631 163 10.4 62
Show 16398+4226 LAW 26 Aa,Ab 227 0.6 64
Show 16398+4226 LAW 26 AB 84 29.8 64
Show 16306+4333 A 1861 174 1.3 77
Show 16273+4240 UC 3171 312 12.0 77
Show 16324+4344 CVR 829 283 26.9 80
Show 16268+4226 GRV1219 261 24.6 82
Show 16271+4255 BU 815 AB 326 25.1 83
Show 16271+4255 BU 815 AD 86 435.5 83
Show 16271+4255 BU 815 AC 161 63.8 83
Show 16271+4255 BU 815 BC 157 88.3 83
Show 16396+4125 FMR 126 262 83.4 87
Show 16299+4347 CVR1667 348 3.1 94
Show 16274+4336 CBL 507 77 16.2 102
Show 16304+4044 HDS2331 277 0.6 111
Show 16441+4203 J 400 174 5.9 114
Show 16422+4112 STF2091 328 0.4 117
Show 16239+4304 UC 3162 291 28.0 120
Show 16250+4121 LDS4669 346 12.6 120
Show 16420+4340 GRV1125 340 24.6 120
Show 16445+4153 LEP 150 39 7.2 121
Show 16416+4428 L 14 123 5.5 121
Show 16234+4251 ARG 76 251 57.8 121
Show 16451+4249 TDT 66 74 0.6 124
Show 16439+4329 D 15 335 0.6 125
Show 16231+4206 LDS4663 23 3.5 125
Show 16425+4100 TDT 41 329 0.5 128
Show 16409+4411 BOW9001 115 17.9 129
Show 16430+4355 KU 54 99 9.7 132
Show 16321+4014 ES 1646 120 4.6 133
Show 16444+4346 TOB 135 255 20.8 139
Show 16326+4007 STT 313 128 0.9 141
Show 16461+4142 JNN 148 337 5.3 141
Show 16405+4020 ES 1647 23 3.1 145
Show 16420+4031 BRT 339 280 4.8 146
Show 16327+3959 STF2065 AB 215 32.0 148
Show 16327+3959 STF2065 AC 24 79.5 148
Show 16283+4441 OSO 71 8 27.8 149
Show 16476+4255 COU1452 AB 103 0.3 152
Show 16476+4255 GII 3 AC 52 1.7 152
Show 16415+4436 HDS2369 63 0.5 153
Show 16450+4402 LDS4691 358 165.1 153
Show 16429+4028 CVR 838 56 22.9 155
Show 16202+4212 SKF 280 90 2.0 155
Show 16476+4319 A 574 331 4.7 158
Show 16212+4118 FAR 46 188 0.2 160
Show 16480+4309 GRV1127 250 10.2 162
Show 16400+3958 GRV1124 219 8.7 163

 
 
WDS 16341+4226 : COMPONENTS
 
 
  A
B pa=11.1°
sep=0.11"
 
 
16341+4226 A
 
 
Componente originario normalizzato AB Name Sig Her Coord arcsec 2000 163406.19+422612.8 Mag 4.2
Spectral class B9V (blue-white) PmRA -11.00 PmDE 46.0 SAO 46161
HIP 81126 Tycho2 3066-02213-1 HD 149630 HR 6168
GC 22296 BD BD+42 2724 Bayer Sigma Herculis Bayer name Sig Her
Flamsteed 35 Herculis Flamsteed name 35 Her FK5 621
Tycho2
Tycho2 3066-02213-1 Pflag RAmdeg 248.52575146 DEmdeg 42.43702714
PmRA -10.8 PmDE 53.8 E RAmdeg 3 E DEmdeg 3
E pmRA 0.6 E pmDE 0.6 EpRAm 1991.07 EpDEm 1991.42
Num 19 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 1.0
Q pmDE 1.8 BTmag 4.177 E BTmag 0.014 VTmag 4.193
E VTmag 0.009 Prox 999 TYC T HIP 81126
CCDM RAdeg 248.52578611 DEdeg 42.43690389 EpRA 1990 1.45
EpDE 1990 1.76 E RAdeg 3.3 E DEdeg 3.2 Posflg
Corr 0.0
SAO
SAO 46161 DelFlag RA1950 PmRA1950 -0.0013
DE1950 PmDE1950 0.044 Vmag 4.3 SpType A0
Double code Source 74 CatNum 621 DM BD+42 2724
DMcomp BDsup HD 149630 M HD 0
GC 22296 RA1950rad 4.33054904 DE1950rad 0.7424489 PmRA2000 -0.0009
PmDE2000 0.046
Hipparcos
Catalog H HIP 81126 Proxy RAhms 16 34 06.19
DEdms +42 26 12.8 Vmag 4.2 VarFlag R Vmag G
RAdeg 248.526 DEdeg 42.4369 AstroRef Plx 10.79
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 149630 BD BD+42 2724
CD CP Dm number +42 2724 VIred 0.02
SpType B9Vvar R SpType Coord arcsec 2000 163406.19+422612.8
Hipparcos 2
HIP 81126 Sn 1 So 0 Nc 1
RArad 4.3375932894 DErad 0.7406635595 Plx 10.36 PmRA -7.54
PmDE 59.42 E RArad 0.35 E DErad 0.44 E Plx 0.46
E pmRA 0.46 E pmDE 0.54 Hpmag 4.2022 E Hpmag 0.0005
SHp 0.004 VA 0 BV -0.013 E BV 0.01
VI 0.02
CCDM
Ccdm 16341+4226 RComp Comp A Note1
Note2 Discov num DRAs 0.19 DDEs 13.3
R dRAs 5 Year Theta Rho
Obs 2 Vmag 4.2 Sp B9 PmNote *
PmRA -11 PmDE 46 Dm number +42 2724 Cat1 BD
Name2 +42 1419 Cat2 AGK2/3 HD 149630 M HD
ADS BDS M ADS BDS N IDS IDS 16309N4239A
HIC 81126
 
 
16341+4226 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 163406.19+422612.9 Mag 7.7 Calc delta mag 3.5
Calc coord yes
CCDM
Ccdm 16341+4226 RComp Comp B Note1 *
Note2 Discov num LAB DRAs DDEs
R dRAs Year 1972 Theta 179 Rho 0.1
Obs 7 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 16309N4239B
HIC 81126