12199-0040 MCA 37 (Zaniah)

 
 
12h 19m 54.39s -00° 40' 00.3" P.A. 328.00 sep 0.1 mag 3.89,5.90 Sp A2IV dist. 81.37 pc (265.43 l.y.)
 
 
Coord 2000 12199-0040 Discov num MCA  37 Comp Coord arcsec 2000 12 19 54.39 -00 40 00.3
Date first 1976 Date last 2021 Obs 94
Pa first 152 Pa last 328.4 P.A. Now (θ) 356.3°
Sep first 0.1 Sep last 0.124 Sep. Now (ρ) 0.145"
Mag pri 3.89 Mag sec 5.90 delta mag (ΔM) 2.01 Spectral class A2IV (white)
Pri motion ra -063 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Zaniah Var name NSV5555 Vir Constellation Virgo SAO 138721
HIP 60129 Tycho2 4940-01158-1 HD 107259 HR 4689
GC 16813 BD BD+00 2926 Bayer Eta Virginis Bayer name Eta Vir
Flamsteed 15 Virginis Flamsteed name 15 Vir FK5 460 Distance 81.37
Distance ly 265.43 Bayer greek η Vir
Meaning angle
 
 
ORBITAL ELEMENTS
 
 
Period (P)13.1y Periastron (T)1990.2y Semi-major axis (a)0.135a
Eccentricity (e)0.08 Inclination (i)50° Longitude of periastron (ω)
Node (Ω)173° Notesn ReferenceSod1999
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 74.0 0.088
2001 115.5 0.092
2002 146.7 0.112
2003 169.3 0.124
2004 190.8 0.117
2005 218.7 0.097
2006 258.7 0.086
2007 298.3 0.099
2008 324.5 0.124
2009 342.5 0.142
2010 357.9 0.145
2011 14.3 0.133
2012 36.2 0.109
2013 69.9 0.089
2014 111.7 0.091
2015 144.1 0.110
2016 167.2 0.124
2017 188.5 0.119
2018 215.4 0.100
2019 254.3 0.086
2020 294.9 0.097
2021 322.4 0.121
2022 340.9 0.141
2023 356.3 0.145
2024 12.5 0.134
2025 33.6 0.112
2026 65.9 0.090
2027 107.7 0.089
2028 141.4 0.108
2029 165.1 0.123
2030 186.3 0.120


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



 
 


wds12199-0040a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 12199-0040 MCA 37 (Zaniah) : NOTES
 
 
discov_num notes refcode
MCA 37 eta Vir = 15 Vir = Zaniah. A spectroscopic and occultation binary now
resolved by speckle interferometry.
Observed parallax corroborates closely the orbital value given by
Hartkopf et al. (1992). Primary is 72d SB2 (#718 in Batten et al., Hrt1992a
1989). This is not the SB2 because the observed angular separations Bte1989
are much larger than the 12 mas maximum predicted by Halbwachs (1981) HJL1981
from the spectroscopic elements. See discussion in Balega et al. Bag1984b
(1984), who give preliminary orbital elements based entirely on
speckle observations.
1985.2053, 1985.2491: These measures agree well with the preliminary
orbit of Balega et al. (1984), who adopted a period of 13 years. The
orbit proposed by Tokovinin (1984) with P = 9.8 years fails to fit the Tok1984
speckle observations. Bnu1986
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
A new speckle/spectroscopic orbit of the early A type triple system
eta Vir has been determined by Hartkopf et al. (1992). Hrt1992a
Martin et al. (1998) derive component masses 6.009 +/- 2.164 and
0.673 +/- 0.800 Msun. Mig1998
 
 
REFERENCES
 
 
refcode metd author reference
Bag1984b S j Balega, Y.Y., Bonneau, D., & Foy, R 1984A&AS...57...31B
Bag1984b A&AS 57, 31, 1984
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Bnu1986 S j Bonneau, D., Balega, Y., Blazit, A, Foy, R., Vakili, F., & Vidal, J.L. 1986A&AS...65...27B
Bnu1986 A&AS 65, 27, 1986
Bte1989 - Batten, A.H. & Fletcher, J.M. 1989PDAO...17....1B
Bte1989 Eighth Catalogue of the Orbital Elements of Spectroscopic Binary Systems; 89
Bte1989 Pub. DAO 17, 1, 19
HJL1981 - Halbwachs, J.L. 1981A&AS...44...47H
HJL1981 A&AS 44, 47, 1981
Hrt1992a orb - Hartkopf, W.I., McAlister, H.A., Yang, X., & Fekel, F.C. 1992AJ....103.1976H
Hrt1992a AJ 103, 1976, 1992
Mig1998 orb - Martin, Ch., Mignard, F., Hartkopf, W.I., & McAlister, H.A. 1998A&AS..133..149M
Mig1998 A&AS 133, 149, 1998
Sod1999 orb - Soderhjelm, S. 1999A&A...341..121S
Sod1999 A&A 341, 121, 1999
Tok1984 orb - Tokovinin, A.A. 1984SvAL...10..121T
Tok1984 SvAL 10, 121, 1984
 
 
DISCOVERER
 
 
idgroup discov author
1 MCA McAlister, H.A.
46 MCA McAlister, H.A., Hartkopf, W.I., Bagnuolo, W.G., Sowell, J.R., Franz, O.G., &
46 MCA Evans, D.S.
61 MCA Fu, H.-H., Hartkopf, W.I., Mason, B.D., McAlister, H.A., Dombrowski, E.G., &
61 MCA Franz, O.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12199-0040 MCA 37 2008 81 333 0.1 3.89 5.90 A2IV NOD 121954.39-004000.3
12199-0040 MCA 37 2017 88 195 0.1 3.89 5.90 A2IV NO 121954.39-004000.3
12199-0040 MCA 37 2018 90 253 0.1 3.89 5.90 A2IV NO 121954.39-004000.3
12199-0040 MCA 37 2019 92 272 0.1 3.89 5.90 A2IV NO 121954.39-004000.3
12199-0040 MCA 37 2020 93 297 0.1 3.89 5.90 A2IV NO 121954.39-004000.3
12199-0040 MCA 37 2021 94 328 0.1 3.89 5.90 A2IV NO 121954.39-004000.3

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

 
 
WDS 12199-0040 MCA 37 (Zaniah) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12199-0040 MCA 37 (Zaniah) : MEASURES
 
 
No records found.

 
 
WDS 12199-0040 (Zaniah) : VIRTUAL EYEPIECE
 
 

12199-0040 MCA  37A mag 3.89 Sp A2IV 12199-0040 MCA  37B sep 0.1 P.A. 328.40 mag 5.9 virtual eyepiece
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Radius:
Components only
 
 
WDS 12199-0040 (Zaniah) : ALADIN DSS IMAGE @ 12h 19m 54.39s -00° 40' 00.3"
 
 
 
 
WDS 12199-0040 MCA 37 (Zaniah) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


12199-0040  MCA  37 (Zaniah) distance=0' 12204+0035  RST5366 distance=10' 12190+0022  GRV1076 distance=18' 12203-0009  OCC  15 distance=32' 12213-0014  GWP1794 distance=34' 12190+0005  GRV1075 distance=35' 12225+0053  GRV1199 distance=42' 12170-0020  SLW 703 distance=48' 12218+0119  SHN 155 distance=49' 12177+0002  A  2582 distance=51' 12179+0126  SHN  22 distance=56' 12234+0020  GWP1800 distance=57' 12157+0051  HJ 1214AB distance=64' 12157+0051  HJ 1214AC distance=64' 12157+0051  ABH  77AD distance=64' 12162-0003  CVR1419 distance=67' 12240+0015  SLW 715 distance=67' 12244+0022  SLW 718 distance=70' 12153-0022  SLW 700 distance=71' 12156+0011  GWP1776 distance=71' 12246+0026  UC 2331 distance=72' 12149-0051  BAL 867 distance=76' 12171+0143  A  2487 distance=76' 12248+0111  UC 2332 distance=81' 12228+0151  LDS2879AB distance=82' 12228+0151  RAO 277Aa,Ab distance=82' 12152+0124  CVR1414 distance=84' 12198+0209  SHN 154 distance=89' 12250+0123  GRV 855 distance=90' 12257-0017  OCC 104 distance=90' 12199+0215  RAO 275 distance=95' 12152+0151  BAL1884 distance=100' 12266+0045  BAL1452 distance=101' 12267+0008  CVR1433 distance=107' 12268-0011  AGC   4 distance=107' 12268+0007  SLW 722 distance=109' 12122+0013  SLW 694 distance=119' 12120+0015  ZHN  20 distance=122' 12227+0238  BAL2389 distance=126' 12247+0225  AG  177AB distance=128' 12247+0225  AG  177AC distance=128' 12097+0154  BUP 138 distance=132' 12287-0035  UC 2346 distance=132' 12210-0131  BAL 868 distance=133' 12287-0025  GWP1817 distance=133' 12228+0246  UC  171 distance=134' 12191+0257  STF1629 distance=138' 12190-0138  HJ  206 distance=139' 12175+0253  UC 2309 distance=139' 12100-0020  GRV1072AB distance=139' 12205-0140  SLW 710 distance=141' 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 Zaniah 12199-0040 MCA 37 328 0.1
Show 12204+0035 RST5366 15 0.9 10
Show 12190+0022 GRV1076 139 10.9 18
Show 12203-0009 OCC 15 -1 0.1 32
Show 12213-0014 GWP1794 352 66.4 34
Show 12190+0005 GRV1075 138 15.0 35
Show 12225+0053 GRV1199 330 22.2 42
Show 12170-0020 SLW 703 48 132.9 48
Show 12218+0119 SHN 155 -1 0.6 49
Show 12177+0002 A 2582 64 0.4 51
Show 12179+0126 SHN 22 175 0.1 56
Show 12234+0020 GWP1800 303 14.2 57
Show 12157+0051 HJ 1214 AB 337 13.0 64
Show 12157+0051 HJ 1214 AC 180 18.2 64
Show 12157+0051 ABH 77 AD 343 28.1 64
Show 12162-0003 CVR1419 46 3.3 67
Show 12240+0015 SLW 715 342 25.7 67
Show 12244+0022 SLW 718 239 9.6 70
Show 12153-0022 SLW 700 156 24.0 71
Show 12156+0011 GWP1776 116 37.1 71
Show 12246+0026 UC 2331 155 21.8 72
Show 12149-0051 BAL 867 357 6.6 76
Show 12171+0143 A 2487 177 2.0 76
Show 12248+0111 UC 2332 122 42.7 81
Show 12228+0151 LDS2879 AB 289 67.2 82
Show 12228+0151 RAO 277 Aa,Ab 110 0.6 82
Show 12152+0124 CVR1414 124 3.7 84
Show 12198+0209 SHN 154 -1 0.7 89
Show 12250+0123 GRV 855 16 43.5 90
Show 12257-0017 OCC 104 -1 0.1 90
Show 12199+0215 RAO 275 258 0.3 95
Show 12152+0151 BAL1884 323 4.4 100
Show 12266+0045 BAL1452 57 2.6 101
Show 12267+0008 CVR1433 213 4.5 107
Show 12268-0011 AGC 4 145 0.5 107
Show 12268+0007 SLW 722 287 144.6 109
Show 12122+0013 SLW 694 133 26.8 119
Show 12120+0015 ZHN 20 359 250.8 122
Show 12227+0238 BAL2389 106 2.8 126
Show 12247+0225 AG 177 AB 221 7.3 128
Show 12247+0225 AG 177 AC 57 96.3 128
Show 12097+0154 BUP 138 99 48.0 132
Show 12287-0035 UC 2346 278 24.9 132
Show 12210-0131 BAL 868 135 6.6 133
Show 12287-0025 GWP1817 139 86.8 133
Show 12228+0246 UC 171 53 40.8 134
Show 12191+0257 STF1629 299 24.7 138
Show 12190-0138 HJ 206 118 18.3 139
Show 12175+0253 UC 2309 294 29.7 139
Show 12100-0020 GRV1072 AB 47 11.1 139
Show 12205-0140 SLW 710 350 173.6 141

 
 
WDS 12199-0040 : COMPONENTS
 
 
  A
B pa=328.4°
sep=0.12"
 
 
12199-0040 A
 
 
Componente originario normalizzato AB Common name Zaniah Meaning angle Coord arcsec 2000 121954.39-004000.3
Mag 3.89 Spectral class A2IV (white) PmRA -63.00 PmDE -18.0
SAO 138721 HIP 60129 Tycho2 4940-01158-1 HD 107259
HR 4689 GC 16813 BD BD+00 2926 Bayer Eta Virginis
Bayer name Eta Vir Flamsteed 15 Virginis Flamsteed name 15 Vir FK5 460
Tycho2
Tycho2 4940-01158-1 Pflag RAmdeg 184.97647537 DEmdeg -0.66679342
PmRA -63.9 PmDE -19.0 E RAmdeg 3 E DEmdeg 3
E pmRA 0.3 E pmDE 0.3 EpRAm 1990.07 EpDEm 1989.93
Num 29 Q RAmdeg 1.7 Q DEmdeg 1.7 Q pmRA 1.7
Q pmDE 1.7 BTmag 3.911 E BTmag 0.014 VTmag 3.874
E VTmag 0.009 Prox 999 TYC T HIP 60129
CCDM RAdeg 184.97662000 DEdeg -0.66674833 EpRA 1990 1.85
EpDE 1990 1.46 E RAdeg 3.2 E DEdeg 3.4 Posflg
Corr 0.4
SAO
SAO 138721 DelFlag RA1950 PmRA1950 -0.0043
DE1950 PmDE1950 -0.022 Vmag 4 SpType A0
Double code Source 74 CatNum 460 DM BD+00 2926
DMcomp BDsup HD 107259 M HD 0
GC 16813 RA1950rad 3.21727891 DE1950rad -0.00679053 PmRA2000 -0.0041
PmDE2000 -0.018
Hipparcos
Catalog H HIP 60129 Proxy RAhms 12 19 54.39
DEdms -00 40 00.3 Vmag 3.89 VarFlag R Vmag G
RAdeg 184.977 DEdeg -0.666747 AstroRef Plx 13.06
CCDM N CCDM Nsys Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 107259 BD BD+00 2926
CD CP Dm number +00 2926 VIred 0.03
SpType A2IV R SpType Coord arcsec 2000 121954.39-004000.3
Hipparcos 2
HIP 60129 Sn 7 So 1 Nc 1
RArad 3.2284512488 DErad -0.0116369299 Plx 12.29 PmRA -57.58
PmDE -25.19 E RArad 0.43 E DErad 0.27 E Plx 0.45
E pmRA 0.47 E pmDE 0.48 Hpmag 3.8992 E Hpmag 0.0005
SHp 0.004 VA 0 BV 0.026 E BV 0.003
VI 0.03
CCDM
Ccdm 12199-0040 RComp Comp A Note1
Note2 Discov num DRAs 0.36 DDEs -0.5
R dRAs 5 Year Theta Rho
Obs 2 Vmag 3.9 Sp A2 PmNote *
PmRA -63 PmDE -18 Dm number +00 2926 Cat1 BD
Name2 138721 Cat2 SAO HD 107259 M HD
ADS BDS M ADS BDS N IDS IDS 12148S0007A
HIC 60129
 
 
12199-0040 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 121954.39+004000.4 Mag 5.9 Calc delta mag 2.01
Calc coord yes
CCDM
Ccdm 12199-0040 RComp Comp B Note1 *
Note2 Discov num MAL 37 DRAs DDEs
R dRAs Year 1976 Theta 152 Rho 0.1
Obs 22 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 12148S0007B
HIC 60129