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Current system
12128-7009
GAA 13 Aa,Ab
S Mus


Nearby doubles
31' : 12079-7027
KPP 262

33' : 12184-6953
TDS8314

40' : 12055-6955
DON 509

45' : 12203-6947
HJ 4515

56' : 12051-6930
TDS8215

62' : 12116-7111
ELP 29AB

65' : 12249-6952
KPP2986

65' : 12157-6906
DON 517

73' : 12010-6930
TDS8166

73' : 12031-7103
LDS 379

76' : 12220-6910
MLO 42

78' : 12255-6929
HJ 4522AB

82' : 12282-7033
DON 528

83' : 12290-7017
TDS8408

86' : 12291-7032
DON 531

86' : 12284-6938
KPP 273

87' : 11589-7103
LDS 376

89' : 12041-6853
R 190

89' : 12161-7137
TDS8294

95' : 11569-6923
KPP2884

102' : 11548-7055
HEI 361

104' : 11578-7121
HJ 4483

105' : 12274-6859
BRT1998

106' : 12275-7125
FMR 239

112' : 12064-6823
DON 510

112' : 12287-7129
LDS 410



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12128-7009 GAA 13 Aa,Ab (S Mus)

 
 
12h 12m 47.01s -70° 09' 06.4" P.A. 168.00 sep 0.0 mag 4.90,4.90 Sp F6Ib+B6V dist. 502.51 pc (1639.19 l.y.)
 
 
Coord 2000 12128-7009 Discov num GAA  13 Comp Aa,Ab Coord arcsec 2000 12 12 47.01 -70 09 06.4
Date first 2015 Date last 2017 Obs 3
Pa first 344 Pa last 168.2 P.A. Now (θ) 168.2°
Sep first 0.0 Sep last 0.003 Sep. Now (ρ) 0.003"
Mag pri 4.90 Mag sec 4.90 delta mag (ΔM) 0 Spectral class F6Ib+B6V (yellow-white/blue-white)
Pri motion ra -008 Sec motion ra
Pri motion dec -002 Sec motion dec
Notes N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
12128-7009 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show S Mus 251791 12 12 47 -70 09 06 GAA 13 Aa,Ab 2017 3 168 0.0 4.90 4.90 0.00 Y <===
Show 251791 12 12 47 -70 09 06 EVS 17 AB 2011 1 183 5.0 6.20 17.94 11.74
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name S Mus Constellation Musca SAO 251791 HIP 59551
Tycho2 9231-00752-1 HD 106111 HR 4645 GC 16679
CD CD-69 977 CP CP-69 1646 Distance 502.51 Distance ly 1639.19
 
 
ORBITAL ELEMENTS
 
 
Period (P)506.3d± 0.5 Periastron (T)57165.9d (2015.391y)± 4.4 Semi-major axis (a)2.95m± 0.09
Eccentricity (e)0.088± 0.006 Inclination (i)144.7°± 2.8 Longitude of periastron (ω)194.8°± 3.3
Node (Ω)99.6°± 14.4 Notesn ReferenceGaA2019b
Equinox Last observation2017 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 303.9 0.003
2001-01-01 54.3 0.003
2002-01-01 129.2 0.003
2003-01-01 244.2 0.003
2004-01-01 349.7 0.002
2005-01-01 86.4 0.003
2006-01-01 170.2 0.002
2007-01-01 286.2 0.003
2008-01-01 37.0 0.003
2009-01-01 115.3 0.003
2010-01-01 222.9 0.002
2011-01-01 328.7 0.003
2012-01-01 73.4 0.003
2013-01-01 150.5 0.003
2014-01-01 268.7 0.003
2015-01-01 17.4 0.002
2016-01-01 102.6 0.003
2017-01-01 199.7 0.002
2018-01-01 309.4 0.003
2019-01-01 58.9 0.003
2020-01-01 133.7 0.003
2021-01-01 250.1 0.003
2022-01-01 356.1 0.002
2023-01-01 90.2 0.003
2024-01-01 176.7 0.002
2025-01-01 291.4 0.003
2026-01-01 42.4 0.003
2027-01-01 119.3 0.003
2028-01-01 229.5 0.002
2029-01-01 334.9 0.002
2030-01-01 77.4 0.003


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


 
  


wds12128-7009a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 12128-7009 GAA 13 Aa,Ab (S Mus) : NOTES
 
 
discov_num notes refcode
EVS 17 Primary is the Cepheid S Mus. Evs2016a
GAA 13 Aa,Ab : Cepheid with a period of 9.66d. Distance = 858 +/- 17 pc. GaA2019b
M_Aa, M_Ab = 4.44 +/- 0.91, 3.98 +/- 0.21 /msun.
 
 
REFERENCES
 
 
refcode metd author reference
Evs2016a H3 - Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Tingle, E., Karovska, M., & 2016AJ....151..129E
Evs2016a Pillitteri, I.
Evs2016a AJ 151, 129, 2016
Evs2016a (some theta values replaced with more precise values from Evs2016b) 2016AJ....151..108E
GaA2019b Kv j Gallenne, A., Kervella, P., Borgniet, S., Merand, A., Pietrzynski, G., Gieren, W., 2019A&A...622A.164G
GaA2019b +Kc Monnier, J.D., Schaefer, G.H., Evans, N.R., Anderson,R.I., Baron, F.,
GaA2019b +orb Roettenbacher, R.M. & Karczmarek, P.
GaA2019b A&A 622, A164, 2019
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12128-7009 GAA 13 Aa,Ab 2017 3 168 0.0 4.90 4.90 F6Ib+B6V NO K 121247.01-700906.4

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

 
 
WDS 12128-7009 GAA 13 Aa,Ab (S Mus) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12128-7009 GAA 13 Aa,Ab (S Mus) : MEASURES
 
 
No records found.

 
 
WDS 12128-7009 (S Mus) : VIRTUAL EYEPIECE
 
 

12128-7009 EVS 17A mag 6.2 Sp F6Ib 12128-7009 GAA 13Ab mag 4.9 Sp B6V 12128-7009 EVS 17B sep 5.0 P.A. 180.80 mag 17.94 Sp B5V 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 12128-7009 (S Mus) : ALADIN DSS IMAGE @ 12h 12m 47.01s -70° 09' 06.4"
 
 
 
 
WDS 12128-7009 GAA 13 Aa,Ab (S Mus) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12128-7009 GAA 13Aa,Ab distance=0' 12079-7027 KPP 262 distance=31' 12184-6953 TDS8314 distance=33' 12055-6955 DON 509 distance=40' 12203-6947 HJ 4515 distance=45' 12051-6930 TDS8215 distance=56' 12116-7111 ELP 29AB distance=62' 12249-6952 KPP2986 distance=65' 12157-6906 DON 517 distance=65' 12010-6930 TDS8166 distance=73' 12031-7103 LDS 379 distance=73' 12220-6910 MLO 42 distance=76' 12255-6929 HJ 4522AB distance=78' 12255-6929 SIN 116AC distance=78' 12282-7033 DON 528 distance=82' 12290-7017 TDS8408 distance=83' 12291-7032 DON 531 distance=86' 12284-6938 KPP 273 distance=86' 11589-7103 LDS 376 distance=87' 12041-6853 R 190 distance=89' 12161-7137 TDS8294 distance=89' 11569-6923 KPP2884 distance=95' 11548-7055 HEI 361 distance=102' 11578-7121 HJ 4483 distance=104' 12274-6859 BRT1998 distance=105' 12275-7125 FMR 239 distance=106' 12064-6823 DON 510 distance=112' 12287-7129 LDS 410 distance=112' 12189-6822 TDS8320 distance=112' 12305-6905 BRT1999 distance=113' 11578-6845 DON 502 distance=115' 12046-6820 HDS1698Aa,Ab distance=118' 12046-6820 SHT 44AB distance=118' 12046-6820 SHT 44AC distance=118' 11580-7147 B 1712 distance=122' 12068-7212 HEI 228Aa,Ab distance=127' 12068-7212 R 184AB distance=127' 12068-7212 R 184AC distance=127' 11554-7150 B 2733BC distance=132' 11554-7150 HDS1680Aa,Ab distance=132' 11554-7150 B 2733AB distance=132' 12025-6808 DON 505 distance=133' 12022-6807 DON 504 distance=134' 12280-6819 DON 527AB distance=137' 12280-6819 DON 527AB,CD distance=137' 12280-6819 DON 527CD distance=137' 12187-6755 LDS 401 distance=137' 12153-7231 LDS 395 distance=142' 12305-7201 B 1717 distance=142' 11591-6805 KPP 258 distance=145' 12036-7229 TDS8200 distance=147' 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 12128-7009 EVS 17 AB 183 5.0
Show 12128-7009 GAA 13 Aa,Ab 168 0.0
Show 12079-7027 KPP 262 37 3.5 31
Show 12184-6953 TDS8314 37 0.9 33
Show 12055-6955 DON 509 195 0.3 40
Show 12203-6947 HJ 4515 53 13.3 45
Show 12051-6930 TDS8215 206 1.9 56
Show 12116-7111 ELP 29 AB 146 2.0 62
Show 12249-6952 KPP2986 308 2.6 65
Show 12157-6906 DON 517 52 3.3 65
Show 12010-6930 TDS8166 222 0.6 73
Show 12031-7103 LDS 379 45 143.0 73
Show 12220-6910 MLO 42 2 4.1 76
Show 12255-6929 HJ 4522 AB 66 12.7 78
Show 12255-6929 SIN 116 AC 259 19.0 78
Show 12282-7033 DON 528 9.6 82
Show 12290-7017 TDS8408 224 2.3 83
Show 12291-7032 DON 531 350 2.5 86
Show 12284-6938 KPP 273 305 3.0 86
Show 11589-7103 LDS 376 304 32.2 87
Show 12041-6853 R 190 232 11.8 89
Show 12161-7137 TDS8294 10 0.5 89
Show 11569-6923 KPP2884 93 1.6 95
Show 11548-7055 HEI 361 301 1.6 102
Show 11578-7121 HJ 4483 109 10.9 104
Show 12274-6859 BRT1998 187 5.0 105
Show 12275-7125 FMR 239 7 7.8 106
Show 12064-6823 DON 510 105 0.2 112
Show 12287-7129 LDS 410 109 15.4 112
Show 12189-6822 TDS8320 78 1.2 112
Show 12305-6905 BRT1999 140 4.3 113
Show 11578-6845 DON 502 255 2.0 115
Show 12046-6820 HDS1698 Aa,Ab 159 0.7 118
Show 12046-6820 SHT 44 AB 327 3.5 118
Show 12046-6820 SHT 44 AC 28 6.6 118
Show 11580-7147 B 1712 232 3.3 122
Show 12068-7212 HEI 228 Aa,Ab 194 0.5 127
Show 12068-7212 R 184 AB 210 25.4 127
Show 12068-7212 R 184 AC 194 60.0 127
Show 11554-7150 B 2733 BC 322 2.9 132
Show 11554-7150 HDS1680 Aa,Ab 208 0.3 132
Show 11554-7150 B 2733 AB 83 33.4 132
Show 12025-6808 DON 505 245 0.9 133
Show 12022-6807 DON 504 146 1.8 134
Show 12280-6819 DON 527 AB 39 0.9 137
Show 12280-6819 DON 527 AB,CD 98 9.4 137
Show 12280-6819 DON 527 CD 356 0.9 137
Show 12187-6755 LDS 401 20 120.7 137
Show 12153-7231 LDS 395 91 22.4 142
Show 12305-7201 B 1717 347 2.9 142
Show 11591-6805 KPP 258 192 3.6 145

 
 
WDS 12128-7009 : COMPONENTS
 
 
  A Ab
Ab pa=175.9°
sep=0.00"
 
B pa=180.8°
sep=5.00"
pa=180.9°
sep=4.99"
 
 
12128-7009 A
 
 
Coord arcsec 2000 121247.01-700906.4 Mag 6.2 Spectral class F6Ib (yellow-white) PmRA -8.00
PmDE -1.0 SAO 251791 HIP 59551 Tycho2 9231-00752-1
HD 106111 HR 4645 GC 16679 CD CD-69 977
CP CP-69 1646
Tycho2
Tycho2 9231-00752-1 Pflag RAmdeg 183.19590969 DEmdeg -70.15178596
PmRA -7.1 PmDE -0.2 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.38 EpDEm 1991.44
Num 13 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 1.1 BTmag 7.028 E BTmag 0.015 VTmag 6.169
E VTmag 0.010 Prox 999 TYC T HIP 59551
CCDM RAdeg 183.19595889 DEdeg -70.15178556 EpRA 1990 1.67
EpDE 1990 1.71 E RAdeg 3.7 E DEdeg 3.7 Posflg
Corr 0.0
SAO
SAO 251791 DelFlag RA1950 PmRA1950 -0.0028
DE1950 PmDE1950 -0.016 Vmag 6.2 SpType F8p
Double code Source 70 CatNum 16679 DM CP-69 1646
DMcomp BDsup HD 106111 M HD 0
GC 16679 RA1950rad 3.18553008 DE1950rad -1.21952705 PmRA2000 -0.0043
PmDE2000 -0.009
Hipparcos
Catalog H HIP 59551 Proxy RAhms 12 12 47.03
DEdms -70 09 06.4 Vmag 6.05 VarFlag 2 R Vmag H
RAdeg 183.196 DEdeg -70.1518 AstroRef Plx 2
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 106111 BD
CD CD-69 977 CP CP-69 1646 Dm number -69 977 VIred 0.82
SpType F6Ib R SpType Coord arcsec 2000 121247.03-700906.4
Hipparcos 2
HIP 59551 Sn 5 So 0 Nc 1
RArad 3.1973727749 DErad -1.2243796488 Plx 1.99 PmRA -7.79
PmDE -0.6 E RArad 0.74 E DErad 0.63 E Plx 0.84
E pmRA 0.97 E pmDE 0.79 Hpmag 6.1988 E Hpmag 0.0291
SHp 0.237 VA 1 BV 1.78 E BV 0.02
VI 0.82
 
 
12128-7009 Ab
 
 
Coord arcsec 2000 121247.01-700906.4 Mag 4.9 Spectral class B6V (blue-white) Calc coord yes
 
 
12128-7009 B
 
 
Coord arcsec 2000 121247.00-700911.4 Mag 17.94 Spectral class B5V (blue-white) Calc delta mag 13.04
Calc coord yes