17572+2400 MCA 50 (HD 163840)

 
 
17h 57m 14.34s +23° 59' 44.6" P.A. 163.00 sep 0.1 mag 6.30,7.90 Sp G2V+K2V dist. 28.25 pc (92.15 l.y.)
 
 
Coord 2000 17572+2400 Discov num MCA  50 Comp Coord arcsec 2000 17 57 14.34 +23 59 44.6
Date first 1976 Date last 2012 Obs 29
Pa first 160 Pa last 162.6 P.A. Now (θ) 162.6°
Sep first 0.1 Sep last 0.088 Sep. Now (ρ) 0.088"
Mag pri 6.30 Mag sec 7.90 delta mag (ΔM) 1.6 Spectral class G2V+K2V (yellow/yellow-orange)
Pri motion ra -013 Sec motion ra
Pri motion dec +071 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 163840 Constellation Hercules SAO 85575 HIP 87895
Tycho2 2090-04674-1 Gaia DR2 4580864547137360512 HD 163840 HR 6697
GC 24423 GL NN 4039A BD BD+24 3283 Distance 28.25
Distance ly 92.15
 
 
ORBITAL ELEMENTS
 
 
Period (P)881.628d (2.41y)± 0.064 Periastron (T)55650.39d (2011.241y)± 0.38 Semi-major axis (a)80.64m
Eccentricity (e)0.4165± 0.001 Inclination (i)72.83°± 0.47 Longitude of periastron (ω)135.46°± 0.16
Node (Ω)175.32°± 0.44 Notesn ReferenceKie2016
Equinox2000 Last observation2015 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 134.0 0.045
2001-01-01 176.5 0.092
2002-01-01 28.9 0.038
2003-01-01 165.5 0.098
2004-01-01 339.2 0.035
2005-01-01 149.4 0.065
2006-01-01 183.2 0.071
2007-01-01 75.3 0.028
2008-01-01 170.0 0.101
2009-01-01 0.4 0.053
2010-01-01 157.8 0.082
2011-01-01 199.4 0.037
2012-01-01 123.3 0.037
2013-01-01 174.5 0.097
2014-01-01 18.3 0.045
2015-01-01 163.6 0.095
2016-01-01 314.2 0.021
2017-01-01 144.5 0.057
2018-01-01 180.1 0.081
2019-01-01 52.9 0.030
2020-01-01 168.2 0.101
2021-01-01 353.8 0.050
2022-01-01 154.9 0.075
2023-01-01 190.3 0.052
2024-01-01 107.8 0.031
2025-01-01 172.6 0.100
2026-01-01 10.2 0.050
2027-01-01 161.5 0.090
2028-01-01 248.1 0.016
2029-01-01 138.0 0.049
2030-01-01 177.6 0.089


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



 
 


wds17572%2B2400b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 17572+2400 MCA 50 (HD 163840) : NOTES
 
 
discov_num notes refcode
MCA 50 A close pair of solar-type stars, astrometric binary
Balega et al. (1984) derive probable period of 940 days Bag1984a
Culver et al. (1980 BAAS 12, 250) report this to be a spectroscopic
binary with a period of 2.6 years. Bla1987
Determination of these two old measures resulted from new reduction
techniques developed over the past year; these data were reanalysed
for a joint spectroscopic/speckle analysis of this system. Hrt1992b
All our CCD speckle data for this close system have been reprocessed
and examined. In addition, we have listed 7 negative measures dating
from observations made at the KPNO 2.1-m in the 1970's.
Hartkopf et al. (1994) derive a combined spectroscopic/interferometric Hrt1994
solution.
Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
McAlister et al. (1995). McA1995
Pourbaix gives combined solution for this resolved SB2, yielding Pbx2000b
orbital parallaxes and component masses.
Orbit determined by fitting revised Hipparcos intermediate astrometric
data. Derived component masses 1.12 +/- 0.17 and 0.72 +/- 0.11 Msun. Ren2010
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 2.29 +/- 0.27, 2.15, and 1.79 Msun, respectively. Mlk2012
Kiefer et al. (2016) generates a combined spectroscopic/astrometric
orbit, yielding masses 1.132 +/- 0.014 and 0.7421 +/- 0.0073 Msun, and
a parallax 36.35 +/- 0.20 mas. Kie2016
 
 
REFERENCES
 
 
refcode metd author reference
Bag1984a S j Balega, Y.Y. & Ryadchenko, V.P. 1984SvAL...10...95B
Bag1984a SvAL 10, 95, 1984
Bla1987 S j Blazit, A. Bonneau, D., & Foy, R. 1987A&AS...71...57B
Bla1987 A&AS 71, 57, 1987
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Hrt1992b Sc j Hartkopf, W.I., McAlister, H.A., & Franz, O.G. 1992AJ....104..810H
Hrt1992b AJ 104, 810, 1992
Hrt1994 Sc j Hartkopf, W.I., McAlister,H.A., Mason, B.D., Barry, D.J., Turner, N., & Fu, H.-H. 1994AJ....108.2299H
Hrt1994 AJ 108, 2299, 1994
Kie2016 orb - Kiefer, F., Halbwachs, J.-L., Arenou, F., Pourbaix, D., Famaey, B., Guillout, P., 2016MNRAS.458.3272K
Kie2016 Lebreton, Y., Nebot Gomez-Moran, A., Mazeh, T., Salomon, J.-B., Soubiran, C., &
Kie2016 Tal-Or, L.
Kie2016 MNRAS 458, 3272, 2016
McA1995 orb - McAlister, H.A., Hartkopf, W.I., & Mason, B.D. 1995AJ....110..366M
McA1995 AJ 110, 366, 1995
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Pbx2000b orb - Pourbaix, D. 2000A&AS..145..215P
Pbx2000b A&AS 145, 215, 2000
Ren2010 orb - Ren, S. & Fu, Y. 2010AJ....139.1975R
Ren2010 AJ 139, 1975, 2010
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17572+2400 MCA 50 2003 22 180 0.1 6.30 7.90 G2V+K2V NOD 175714.34+235944.6
17572+2400 MCA 50 2007 23 157 0.1 6.30 7.90 G2V+K2V NOD 175714.34+235944.6
17572+2400 MCA 50 2012 29 163 0.1 6.30 7.90 G2V+K2V NO 175714.34+235944.6

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

 
 
WDS 17572+2400 MCA 50 (HD 163840) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17572+2400 MCA 50 (HD 163840) : MEASURES
 
 
No records found.

 
 
WDS 17572+2400 (HD 163840) : VIRTUAL EYEPIECE
 
 

17572+2400 MCA  50A mag 6.3 Sp G2V 17572+2400 MCA  50B sep 0.1 P.A. 164.00 mag 7.9 Sp K2V 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 17572+2400 (HD 163840) : ALADIN DSS IMAGE @ 17h 57m 14.34s +23° 59' 44.6"
 
 
 
 
WDS 17572+2400 MCA 50 (HD 163840) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


17572+2400  MCA  50 distance=0' 17572+2349  POU3330 distance=10' 17565+2404  POU3328 distance=11' 17566+2346  TDT 587 distance=17' 17586+2348  CBL 521 distance=22' 17586+2417  POU3331AB distance=26' 17589+2349  POU3334 distance=26' 17556+2343  POU3325 distance=28' 17588+2343  POU3333 distance=28' 17565+2331  POU3327 distance=31' 17557+2425  POU3326 distance=34' 17549+2347  POU3323 distance=36' 17595+2419  POU3336 distance=37' 17591+2428  POU3335 distance=39' 17597+2422  POU3337 distance=41' 17550+2330  POU3324 distance=44' 17561+2319  TDT 581 distance=44' 17599+2331  POU3338AB distance=47' 17572+2312  POU3329 distance=48' 18010+2411  POU3339 distance=54' 18011+2341  POU3340 distance=57' 18009+2432  TDT 636 distance=59' 17543+2317  POU3322 distance=61' 17589+2303  POU3332 distance=62' 18000+2449  COU 115 distance=62' 17528+2347  HDS2522 distance=62' 17529+2424  POU3320 distance=65' 17546+2303  TDT 566 distance=68' 17537+2450  TDT 561 distance=70' 17528+2328  POU3319 distance=71' 17556+2508  COU 503 distance=72' 17536+2307  HJ 2813 distance=73' 17572+2247  UC 3453 distance=73' 17555+2250  GRV 970 distance=74' 17526+2323  POU3317 distance=74' 17530+2446  POU3321 distance=75' 17526+2443  POU3318 distance=77' 17533+2459  A   235 distance=81' 18016+2454  POU3341 distance=81' 17516+2425  POU3316 distance=82' 17514+2338  POU3315 distance=82' 17520+2317  TDT 541 distance=84' 18033+2350  POU3343 distance=85' 17511+2421  TDT 534 distance=87' 18029+2319  TDT 652 distance=88' 17584+2233  TDS 893 distance=89' 18017+2508  TDT 642 distance=91' 18034+2324  POU3344 distance=92' 18024+2302  POU3342 distance=92' 17515+2449  CTI1091 distance=93' 17545+2526  A   236 distance=94' 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 17572+2400 MCA 50 163 0.1
Show 17572+2349 POU3330 154 7.0 10
Show 17565+2404 POU3328 320 3.4 11
Show 17566+2346 TDT 587 343 0.5 17
Show 17586+2348 CBL 521 265 19.8 22
Show 17586+2417 POU3331 AB 212 8.3 26
Show 17589+2349 POU3334 247 11.7 26
Show 17556+2343 POU3325 344 6.6 28
Show 17588+2343 POU3333 61 16.1 28
Show 17565+2331 POU3327 43 14.2 31
Show 17557+2425 POU3326 104 10.8 34
Show 17549+2347 POU3323 190 8.8 36
Show 17595+2419 POU3336 194 9.0 37
Show 17591+2428 POU3335 234 11.6 39
Show 17597+2422 POU3337 151 5.0 41
Show 17550+2330 POU3324 152 12.2 44
Show 17561+2319 TDT 581 20 0.4 44
Show 17599+2331 POU3338 AB 318 9.5 47
Show 17572+2312 POU3329 197 2.8 48
Show 18010+2411 POU3339 259 8.0 54
Show 18011+2341 POU3340 130 15.8 57
Show 18009+2432 TDT 636 185 0.2 59
Show 17543+2317 POU3322 302 13.2 61
Show 17589+2303 POU3332 163 7.3 62
Show 18000+2449 COU 115 112 0.3 62
Show 17528+2347 HDS2522 148 0.2 62
Show 17529+2424 POU3320 36 16.3 65
Show 17546+2303 TDT 566 78 2.8 68
Show 17537+2450 TDT 561 104 0.8 70
Show 17528+2328 POU3319 331 16.0 71
Show 17556+2508 COU 503 118 0.4 72
Show 17536+2307 HJ 2813 223 21.3 73
Show 17572+2247 UC 3453 56 14.2 73
Show 17555+2250 GRV 970 153 44.4 74
Show 17526+2323 POU3317 164 13.5 74
Show 17530+2446 POU3321 239 7.5 75
Show 17526+2443 POU3318 237 8.4 77
Show 17533+2459 A 235 76 0.4 81
Show 18016+2454 POU3341 80 5.6 81
Show 17516+2425 POU3316 245 14.0 82
Show 17514+2338 POU3315 302 14.6 82
Show 17520+2317 TDT 541 223 0.6 84
Show 18033+2350 POU3343 292 12.3 85
Show 17511+2421 TDT 534 341 0.9 87
Show 18029+2319 TDT 652 154 0.5 88
Show 17584+2233 TDS 893 280 0.8 89
Show 18017+2508 TDT 642 63 0.5 91
Show 18034+2324 POU3344 64 11.3 92
Show 18024+2302 POU3342 194 3.6 92
Show 17515+2449 CTI1091 31 3.2 93
Show 17545+2526 A 236 248 4.8 94

 
 
WDS 17572+2400 : COMPONENTS
 
 
  A
B pa=164.0°
sep=0.09"
 
 
17572+2400 A
 
 
Componente originario normalizzato AB Name HD 163840 Coord arcsec 2000 175714.34+235944.6 Mag 6.3
Spectral class G2V (yellow) PmRA -13.00 PmDE 71.0 SAO 85575
HIP 87895 Tycho2 2090-04674-1 HD 163840 HR 6697
GC 24423 BD BD+24 3283
Tycho2
Tycho2 2090-04674-1 Pflag RAmdeg 269.30969463 DEmdeg 23.99588484
PmRA -16.9 PmDE 72.8 E RAmdeg 4 E DEmdeg 3
E pmRA 1.0 E pmDE 0.9 EpRAm 1991.15 EpDEm 1991.61
Num 16 Q RAmdeg 1.5 Q DEmdeg 1.3 Q pmRA 1.4
Q pmDE 1.3 BTmag 7.108 E BTmag 0.015 VTmag 6.396
E VTmag 0.009 Prox 999 TYC T HIP 87895
CCDM RAdeg 269.30973889 DEdeg 23.99571861 EpRA 1990 1.42
EpDE 1990 1.78 E RAdeg 3.6 E DEdeg 3.3 Posflg
Corr -0.1
SAO
SAO 85575 DelFlag RA1950 PmRA1950 -0.0018
DE1950 PmDE1950 0.076 Vmag 6.4 SpType G0
Double code Source 70 CatNum 24423 DM BD+24 3283
DMcomp BDsup HD 163840 M HD 0
GC 24423 RA1950rad 4.69132131 DE1950rad 0.41887048 PmRA2000 -0.0017
PmDE2000 0.076
Hipparcos
Catalog H HIP 87895 Proxy RAhms 17 57 14.34
DEdms +23 59 44.6 Vmag 6.32 VarFlag R Vmag H
RAdeg 269.31 DEdeg 23.9957 AstroRef + Plx 35.02
CCDM N CCDM Nsys Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 163840 BD BD+24 3283
CD CP Dm number +24 3283 VIred 0.68
SpType G2V R SpType Coord arcsec 2000 175714.34+235944.6
Hipparcos 2
HIP 87895 Sn 75 So 4 Nc 1
RArad 4.700341603 DErad 0.4188041467 Plx 35.4 PmRA -17.79
PmDE 73.56 E RArad 0.27 E DErad 0.44 E Plx 0.62
E pmRA 0.33 E pmDE 0.47 Hpmag 6.4543 E Hpmag 0.0005
SHp 0.008 VA 0 BV 0.642 E BV 0.006
VI 0.68
CCDM
Ccdm 17572+2400 RComp Comp A Note1
Note2 Discov num DRAs 2.28 DDEs -15.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.3 Sp G2 PmNote *
PmRA -17 PmDE 63 Dm number +24 3283 Cat1 BD
Name2 +23 1686 Cat2 AGK2/3 HD 163840 M HD
ADS BDS M ADS BDS N IDS IDS 17531N2401A
HIC 87895
 
 
17572+2400 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 175714.34+235944.5 Mag 7.9 Spectral class K2V (yellow-orange)
Calc delta mag 1.6 Calc coord yes
CCDM
Ccdm 17572+2400 RComp Comp B Note1 *
Note2 Discov num MAL 50 DRAs DDEs
R dRAs Year 1976 Theta 160 Rho 0.1
Obs 3 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17531N2401B
HIC 87895