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Current system
09001-1228
HU 225 AB
HD 77126


Nearby doubles
13' : 09005-1239
HJ 4160

14' : 08593-1233
LDS3839

43' : 08578-1254
UC 1736

51' : 08578-1306
HU 122

54' : 08575-1305
RST3615

65' : 09031-1140
UC 1744

69' : 09035-1141
RST3618

70' : 09042-1152
BRT3209

70' : 08570-1321
TDS6212

79' : 08550-1205
GWP1110

80' : 09007-1109
HU 719

91' : 08566-1343
HJ 800

93' : 09038-1343
TDS6279

95' : 08540-1156
RST3612

96' : 08540-1153
DAM1504

97' : 08553-1122
S 584

97' : 08539-1308
ST 9AB

102' : 09048-1343
HU 226

105' : 08568-1401
GWP1119

106' : 09068-1305
J 1539

106' : 09072-1212
DAM1538

111' : 09073-1304
J 1540

112' : 09076-1213
RST3622

118' : 08599-1030
HJ 802AB

118' : 08584-1422
LDS3837

121' : 08525-1314
HJ 4146



Selections
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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.

09001-1228 HU 225 AB (HD 77126)

 
 
09h 00m 05.14s -12° 27' 39.4" P.A. 268.00 sep 0.4 mag 9.18,8.60 Sp F7V dist. 101.01 pc (329.49 l.y.)
 
 
Coord 2000 09001-1228 Discov num HU  225 Comp AB Coord arcsec 2000 09 00 05.14 -12 27 39.4
Date first 1900 Date last 2018 Obs 52
Pa first 280 Pa last 267.7 P.A. Now (θ) 273.8°
Sep first 0.3 Sep last 0.425 Sep. Now (ρ) 0.397"
Mag pri 9.18 Mag sec 8.60 delta mag (ΔM) 0.58 Spectral class F7V (yellow-white)
Pri motion ra -063 Sec motion ra -063
Pri motion dec +002 Sec motion dec +002
Notes N O W (See Notes, Orbital solution, )
This double is physical.
 
 
09001-1228 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 77126 154820 09 00 05 -12 27 39 HU 225 AB 2018 52 268 0.4 9.18 8.60 0.58 Y <===
Show 154820 09 00 05 -12 27 39 WOR 36 AB,C 1976 2 135 5.2 8.16 14.00 5.84
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 77126 Constellation Hydra SAO 154820 HIP 44190
Tycho2 5452-02085-1 Gaia DR2 5735868629841501824 HD 77126 ADS 7131
BD BD-11 2520 Distance 101.01 Distance ly 329.49
 
 
ORBITAL ELEMENTS
 
 
Period (P)125.94y Periastron (T)1944.21y Semi-major axis (a)0.341a
Eccentricity (e)0.331 Inclination (i)46° Longitude of periastron (ω)9.5°
Node (Ω)68.4° Notesn ReferenceDoc2015f
Equinox2000 Last observation2011 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 247.4 0.450
2001 248.4 0.451
2002 249.5 0.452
2003 250.6 0.452
2004 251.6 0.452
2005 252.7 0.452
2006 253.8 0.452
2007 254.8 0.451
2008 255.9 0.450
2009 257.0 0.448
2010 258.1 0.447
2011 259.2 0.444
2012 260.3 0.442
2013 261.4 0.439
2014 262.5 0.436
2015 263.7 0.433
2016 264.9 0.430
2017 266.1 0.426
2018 267.3 0.422
2019 268.5 0.417
2020 269.8 0.412
2021 271.1 0.407
2022 272.4 0.402
2023 273.8 0.397
2024 275.2 0.391
2025 276.6 0.385
2026 278.1 0.379
2027 279.7 0.372
2028 281.3 0.366
2029 282.9 0.359
2030 284.6 0.352


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


 
  


wds09001-1228a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 09001-1228 HU 225 AB (HD 77126) : NOTES
 
 
discov_num notes refcode
HU 225 AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 2.38 +/- 1.07, 2.57, and 1.13 Msun, respectively. Mlk2012
WOR 36 A faint companion (mag. about 14, 5") found by Worley may be
physical.
 
 
REFERENCES
 
 
refcode metd author reference
Doc2015f orb - Docobo, J.A. & Ling, J.F. 2015IAUDS.187Q...1D
Doc2015f Inf. Circ. 187, 1, 2015
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 HU Hussey, W.F.
58 WOR Worley, C.E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09001-1228 HU 225 AB 2006 47 253 0.4 9.18 8.60 F7V NOD 090005.14-122739.4
09001-1228 HU 225 AB 2009 49 257 0.4 9.18 8.60 F7V NOD 090005.14-122739.4
09001-1228 HU 225 AB 2010 50 258 0.4 9.18 8.60 F7V NOD 090005.14-122739.4
09001-1228 HU 225 AB 2011 51 259 0.4 9.18 8.60 F7V NOD 090005.14-122739.4
09001-1228 HU 225 AB 2018 52 268 0.4 9.18 8.60 F7V NO 090005.14-122739.4

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

 
 
WDS 09001-1228 HU 225 AB (HD 77126) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09001-1228 HU 225 AB (HD 77126) : MEASURES
 
 
No records found.

 
 
WDS 09001-1228 (HD 77126) : VIRTUAL EYEPIECE
 
 

09001-1228 HU 225A mag 9.18 Sp F7V 09001-1228 HU 225B sep 0.4 P.A. 267.60 mag 8.6 09001-1228 WOR 36C sep 5.1 P.A. 135.50 mag 14 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 09001-1228 (HD 77126) : ALADIN DSS IMAGE @ 09h 00m 05.14s -12° 27' 39.4"
 
 
 
 
WDS 09001-1228 HU 225 AB (HD 77126) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09001-1228 HU 225AB distance=1' 09001-1228 WOR 36AB,C distance=1' 09005-1239 HJ 4160 distance=13' 08593-1233 LDS3839 distance=14' 08578-1254 UC 1736 distance=43' 08578-1306 HU 122 distance=51' 08575-1305 RST3615 distance=54' 09031-1140 UC 1744 distance=65' 09035-1141 RST3618 distance=69' 09042-1152 BRT3209 distance=70' 08570-1321 TDS6212 distance=70' 08550-1205 GWP1110 distance=79' 09007-1109 HU 719 distance=80' 08566-1343 HJ 800 distance=91' 09038-1343 TDS6279 distance=93' 08540-1156 RST3612 distance=95' 08540-1153 DAM1504 distance=96' 08553-1122 S 584 distance=97' 08539-1308 ST 9AB distance=97' 09048-1343 HU 226 distance=102' 08568-1401 GWP1119 distance=105' 09068-1305 J 1539 distance=106' 09072-1212 DAM1538 distance=106' 09073-1304 J 1540 distance=111' 09076-1213 RST3622 distance=112' 08599-1030 TDS6239Aa,Ab distance=118' 08599-1030 HJ 802AB distance=118' 08584-1422 LDS3837 distance=118' 08525-1314 HJ 4146 distance=121' 08518-1242 UC 1725 distance=122' 08555-1409 RST3613 distance=122' 09000-1432 HDS1304 distance=125' 08548-1406 GWP1108AB distance=125' 08548-1406 GWP1109AC distance=125' 08597-1019 J 2893 distance=127' 08512-1231 XMI 84 distance=130' 08512-1219 RST3610 distance=131' 09095-1257 BRT2715 distance=141' 09096-1207 NSN 342 distance=142' 08507-1306 TDS6131 distance=143' 08518-1108 SCJ 11 distance=145' 08588-1458 A 3070 distance=152' 09091-1347 RST3623 distance=153' 09105-1303 RST3625 distance=155' 09093-1347 DAM1552 distance=156' 09039-1454 BRT1907 distance=157' 08493-1253 RST3609 distance=160' 08541-1443 LDS3831 distance=161' 08491-1244 BRT2714BC distance=162' 08491-1244 J 2064AB distance=163' 09077-1029 HJ 804 distance=164' 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 09001-1228 HU 225 AB 268 0.4 1
Show 09001-1228 WOR 36 AB,C 135 5.2 1
Show 09005-1239 HJ 4160 282 13.3 13
Show 08593-1233 LDS3839 16 5.3 14
Show 08578-1254 UC 1736 165 11.1 43
Show 08578-1306 HU 122 250 0.8 51
Show 08575-1305 RST3615 280 1.3 54
Show 09031-1140 UC 1744 54 14.8 65
Show 09035-1141 RST3618 115 1.3 69
Show 09042-1152 BRT3209 175 4.1 70
Show 08570-1321 TDS6212 80 0.8 70
Show 08550-1205 GWP1110 93 110.6 79
Show 09007-1109 HU 719 279 0.5 80
Show 08566-1343 HJ 800 353 23.8 91
Show 09038-1343 TDS6279 218 2.7 93
Show 08540-1156 RST3612 22 0.8 95
Show 08540-1153 DAM1504 272 4.1 96
Show 08553-1122 S 584 217 63.6 97
Show 08539-1308 ST 9 AB 300 0.8 97
Show 09048-1343 HU 226 121 3.3 102
Show 08568-1401 GWP1119 293 16.6 105
Show 09068-1305 J 1539 51 2.8 106
Show 09072-1212 DAM1538 62 2.2 106
Show 09073-1304 J 1540 231 4.6 111
Show 09076-1213 RST3622 95 1.9 112
Show 08599-1030 TDS6239 Aa,Ab 252 0.4 118
Show 08599-1030 HJ 802 AB 356 20.3 118
Show 08584-1422 LDS3837 302 29.5 118
Show 08525-1314 HJ 4146 109 29.6 121
Show 08518-1242 UC 1725 57 24.7 122
Show 08555-1409 RST3613 171 1.4 122
Show 09000-1432 HDS1304 107 0.2 125
Show 08548-1406 GWP1108 AB 309 52.1 125
Show 08548-1406 GWP1109 AC 13 10.1 125
Show 08597-1019 J 2893 325 3.9 127
Show 08512-1231 XMI 84 268 21.0 130
Show 08512-1219 RST3610 66 1.2 131
Show 09095-1257 BRT2715 323 4.0 141
Show 09096-1207 NSN 342 301 1.6 142
Show 08507-1306 TDS6131 37 1.8 143
Show 08518-1108 SCJ 11 353 2.3 145
Show 08588-1458 A 3070 66 0.4 152
Show 09091-1347 RST3623 316 0.6 153
Show 09105-1303 RST3625 206 1.3 155
Show 09093-1347 DAM1552 71 2.0 156
Show 09039-1454 BRT1907 59 5.0 157
Show 08493-1253 RST3609 132 1.1 160
Show 08541-1443 LDS3831 354 136.7 161
Show 08491-1244 BRT2714 BC 204 3.3 162
Show 08491-1244 J 2064 AB 28 71.9 163
Show 09077-1029 HJ 804 329 12.8 164

 
 
WDS 09001-1228 : COMPONENTS
 
 
  A B
B pa=267.6°
sep=0.42"
 
C pa=135.5°
sep=5.10"
pa=132.2°
sep=5.39"
 
 
09001-1228 A
 
 
Name HD 77126 Coord arcsec 2000 090005.14-122739.4 Mag 9.18 Spectral class F7V (yellow-white)
PmRA -63.00 PmDE 2.0 SAO 154820 HIP 44190
HD 77126 BD BD-11 2520
SAO
SAO 154820 DelFlag RA1950 PmRA1950 -0.0049
DE1950 PmDE1950 0 Vmag 8.2 SpType F5
Double code Source 20 CatNum 3458 DM BD-11 2520
DMcomp BDsup HD 77126 M HD 0
GC RA1950rad 2.34615578 DE1950rad -0.2140647 PmRA2000 -0.0045
PmDE2000 0.005
Hipparcos
Catalog H HIP 44190 Proxy H RAhms 09 00 05.14
DEdms -12 27 39.4 Vmag 8.06 VarFlag R Vmag G
RAdeg 135.021 DEdeg -12.4609 AstroRef A Plx 11.17
CCDM 09001-1228 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 237 Rho 0.427 HD 77126 BD BD-11 2520
CD CP Dm number -11 2520 VIred 0.61
SpType F7V R SpType Coord arcsec 2000 090005.14-122739.4
Hipparcos 2
HIP 44190 Sn 15 So 3 Nc 2
RArad 2.3565682005 DErad -0.2174844313 Plx 9.9 PmRA -58.98
PmDE -3.61 E RArad 1.08 E DErad 0.49 E Plx 1.18
E pmRA 1.32 E pmDE 0.54 Hpmag 8.174 E Hpmag 0.0012
SHp 0.013 VA 0 BV 0.535 E BV 0.005
VI 0.61
CCDM
Ccdm 09001-1228 RComp Comp A Note1
Note2 Discov num DRAs -0.95 DDEs 21.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.7 Sp F5 PmNote *
PmRA -72 PmDE 0 Dm number -11 2520 Cat1 BD
Name2 154820 Cat2 SAO HD 77126 M HD
ADS BDS A 7131 M ADS BDS N IDS IDS 08553S1204A
HIC 44190
 
 
09001-1228 B
 
 
Coord arcsec 2000 090005.11-122739.4 Mag 8.6 PmRA -63.00 PmDE 2.0
Tycho2 5452-02085-1 Calc delta mag 0.58 Calc coord yes
Tycho2
Tycho2 5452-02085-1 Pflag RAmdeg 135.02120985 DEmdeg -12.46096421
PmRA -62.7 PmDE 1.5 E RAmdeg 5 E DEmdeg 6
E pmRA 1.2 E pmDE 1.4 EpRAm 1991.25 EpDEm 1990.88
Num 8 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.2
Q pmDE 0.9 BTmag 8.713 E BTmag 0.016 VTmag 8.158
E VTmag 0.011 Prox 999 TYC T HIP 44190
CCDM AB RAdeg 135.02135750 DEdeg -12.46096806 EpRA 1990 1.74
EpDE 1990 1.29 E RAdeg 4.6 E DEdeg 5.7 Posflg P
Corr 0.0
CCDM
Ccdm 09001-1228 RComp Comp B Note1 *
Note2 Discov num HU 225 DRAs DDEs
R dRAs Year 1900 Theta Rho
Obs 99 Vmag 8.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7131 M ADS BDS N IDS IDS 08553S1204B
HIC 44190
 
 
09001-1228 C
 
 
Coord arcsec 2000 090005.38-122743.0 Mag 14 Calc delta mag 4.82 Calc coord yes
CCDM
Ccdm 09001-1228 RComp Comp C Note1
Note2 Discov num WOR 36 DRAs DDEs
R dRAs Year 1972 Theta 132 Rho 5.6
Obs 1 Vmag 14.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7131 M ADS BDS N IDS IDS 08553S1204C
HIC 44190