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Current system
08568-1726
ARG 72 AB
HD 76635


Nearby doubles
17' : 08579-1719
UC 1738

44' : 08590-1657
MBL 6

47' : 08536-1722
TOK 666

53' : 08550-1640
UC 1729

54' : 08552-1814
S 585

68' : 08542-1629
GWP1104

72' : 08523-1657
TDS 498

76' : 09022-1744
J 2649

89' : 08579-1853
HO 358

92' : 09032-1740
S 588

92' : 09022-1815
TDS6259

94' : 09034-1728
RST3617

95' : 08518-1827
TDS 497

97' : 08523-1837
GWP1095

102' : 08563-1908
BRT1471

107' : 08495-1706
LDS3824

108' : 08494-1711
POC 3

110' : 08599-1546
TDS6240

110' : 08497-1809
A 3069

113' : 08577-1918
MBL 5

114' : 09047-1714
HDS1315

117' : 08557-1531
GWP1113

118' : 08489-1800
TDS6113

121' : 08514-1859
NSN 339

122' : 08567-1523
J 1537

122' : 09026-1556
RST4428



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

08568-1726 ARG 72 AB (HD 76635)

 
 
08h 56m 49.69s -17° 26' 00.2" P.A. 182.00 sep 4.2 mag 7.23,7.40 Sp F3/5V dist. 62.31 pc (203.26 l.y.)
 
 
Coord 2000 08568-1726 Discov num ARG  72 Comp AB Coord arcsec 2000 08 56 49.69 -17 26 00.2
Date first 1875 Date last 2022 Obs 59
Pa first 182 Pa last 181.8 P.A. Now (θ) 181.8°
Sep first 2.4 Sep last 4.16 Sep. Now (ρ) 4.16"
Mag pri 7.23 Mag sec 7.40 delta mag (ΔM) 0.17 Spectral class F3/5V (yellow-white)
Pri motion ra -037 Sec motion ra -047
Pri motion dec -001 Sec motion dec -011
Notes N L T (See Notes, Linear solution, Parallax indicates physical)
rPM=0.293 (< 0.3, Physical double)
This double is physical.
 
 
08568-1726 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 76635 154781 08 56 50 -17 26 00 ARG 72 AB 2022 59 182 4.2 7.23 7.40 0.17 <===
Show 08 56 50 -17 26 04 SHY 533 BC 1998 3 152 999.9 7.40 8.75 1.35
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 76635 Constellation Hydra SAO 154781 HIP 43920
Tycho2 6018-01742-1 Gaia DR2 5729850281149765632 HD 76635 GC 12374
ADS 7103 BD BD-16 2644 Distance 62.31 Distance ly 203.26
 
 
WDS 08568-1726 ARG 72 AB (HD 76635) : NOTES
 
 
discov_num notes refcode
ARG 72 AB: Despite the linear solution, proper motion and parallax favor a Grv2020a
physical connection. Long period and/or high eccentricity possible.
SHY 533 BC: HIP 43920 + HIP 44657.
 
 
REFERENCES
 
 
refcode metd author reference
Grv2020a not - Greaves, J. .
Grv2020a private communication, 2020 (14 Mar 2020 email)
 
 
DISCOVERER
 
 
idgroup discov author
1 ARG Argelander, F.
20 SHY Shaya, E.J. & Olling, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08568-1726 ARG 72 AB 2010 52 182 3.9 7.23 7.40 F3/5V LD 085649.69-172600.2
08568-1726 ARG 72 AB 2016 55 183 4.1 7.23 7.40 F3/5V NL 085649.69-172600.2
08568-1726 ARG 72 AB 2022 59 182 4.2 7.23 7.40 F3/5V NL T 085649.69-172600.2

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

 
 
WDS 08568-1726 ARG 72 AB (HD 76635) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08568-1726 ARG 72 AB (HD 76635) : MEASURES
 
 
No records found.

 
 
WDS 08568-1726 (HD 76635) : VIRTUAL EYEPIECE
 
 

08568-1726 ARG 72A mag 7.23 Sp F3/5V 08568-1726 SHY 533B sep 4.0 P.A. 184.10 mag 7.4 Sp F2 08568-1726 SHY 533C sep 9892.0 P.A. 153.40 mag 8.75 Sp G3V 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 08568-1726 (HD 76635) : ALADIN DSS IMAGE @ 08h 56m 49.69s -17° 26' 00.2"
 
 
 
 
WDS 08568-1726 ARG 72 AB (HD 76635) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08568-1726 ARG 72AB distance=0' 08568-1726 SHY 533BC distance=1' 08579-1719 UC 1738 distance=17' 08590-1657 MBL 6 distance=44' 08536-1722 TOK 666 distance=47' 08550-1640 UC 1729 distance=53' 08552-1814 S 585 distance=54' 08542-1629 GWP1104 distance=68' 08523-1657 TDS 498 distance=72' 09022-1744 J 2649 distance=76' 08579-1853 HO 358 distance=89' 09032-1740 S 588 distance=92' 09022-1815 TDS6259 distance=92' 09034-1728 RST3617 distance=94' 08518-1827 TDS 497 distance=95' 08523-1837 GWP1095 distance=97' 08563-1908 BRT1471 distance=102' 08495-1706 LDS3824 distance=107' 08494-1711 POC 3 distance=108' 08599-1546 TDS6240 distance=110' 08497-1809 A 3069 distance=110' 08577-1918 MBL 5 distance=113' 09047-1714 HDS1315 distance=114' 08557-1531 GWP1113 distance=117' 08489-1800 TDS6113 distance=118' 08514-1859 NSN 339 distance=121' 08567-1523 J 1537 distance=122' 09026-1556 RST4428 distance=122' 09005-1917 RSS 184 distance=123' 08546-1925 GWP1107 distance=123' 08504-1604 TDS6127 distance=124' 08485-1803 A 3067 distance=125' 08523-1913 GWP1096 distance=126' 08527-1535 RST3611 distance=126' 08542-1927 TDS6174 distance=127' 08484-1641 POC 2 distance=130' 08481-1800 DAM1486 distance=130' 09012-1921 HDS1308 distance=131' 09012-1523 FAL 25 distance=138' 08474-1703 BU 586 distance=138' 08577-1946 UC 1735 distance=141' 08476-1637 KPP2159 distance=142' 08588-1458 A 3070 distance=151' 09069-1812 RST3621 distance=152' 08516-1510 UC 1724 distance=156' 08499-1928 GWP1089 distance=157' 08477-1856 J 2647 distance=161' 08457-1750 A 3066 distance=162' 08476-1859 LDS 235 distance=163' 08568-2009 ARA 648 distance=164' 08457-1810 TDS6082 distance=166' 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 08568-1726 ARG 72 AB 182 4.2
Show 08568-1726 SHY 533 BC 152 999.9 1
Show 08579-1719 UC 1738 160 50.6 17
Show 08590-1657 MBL 6 145 19.6 44
Show 08536-1722 TOK 666 118 27.8 47
Show 08550-1640 UC 1729 73 11.0 53
Show 08552-1814 S 585 151 64.2 54
Show 08542-1629 GWP1104 261 104.8 68
Show 08523-1657 TDS 498 349 1.9 72
Show 09022-1744 J 2649 34 8.2 76
Show 08579-1853 HO 358 305 1.7 89
Show 09032-1740 S 588 327 32.0 92
Show 09022-1815 TDS6259 92 0.4 92
Show 09034-1728 RST3617 162 0.3 94
Show 08518-1827 TDS 497 218 2.0 95
Show 08523-1837 GWP1095 298 35.5 97
Show 08563-1908 BRT1471 164 4.4 102
Show 08495-1706 LDS3824 48 10.8 107
Show 08494-1711 POC 3 227 7.8 108
Show 08599-1546 TDS6240 274 0.4 110
Show 08497-1809 A 3069 297 1.1 110
Show 08577-1918 MBL 5 305 38.2 113
Show 09047-1714 HDS1315 183 0.2 114
Show 08557-1531 GWP1113 67 19.0 117
Show 08489-1800 TDS6113 124 0.6 118
Show 08514-1859 NSN 339 242 3.9 121
Show 08567-1523 J 1537 357 5.5 122
Show 09026-1556 RST4428 350 1.1 122
Show 09005-1917 RSS 184 35 12.0 123
Show 08546-1925 GWP1107 219 4.5 123
Show 08504-1604 TDS6127 17 2.0 124
Show 08485-1803 A 3067 39 1.7 125
Show 08523-1913 GWP1096 205 103.9 126
Show 08527-1535 RST3611 42 1.1 126
Show 08542-1927 TDS6174 189 0.6 127
Show 08484-1641 POC 2 75 6.1 130
Show 08481-1800 DAM1486 275 1.0 130
Show 09012-1921 HDS1308 2 0.6 131
Show 09012-1523 FAL 25 239 7.0 138
Show 08474-1703 BU 586 232 0.3 138
Show 08577-1946 UC 1735 87 19.7 141
Show 08476-1637 KPP2159 20 17.7 142
Show 08588-1458 A 3070 66 0.4 151
Show 09069-1812 RST3621 55 2.2 152
Show 08516-1510 UC 1724 89 35.4 156
Show 08499-1928 GWP1089 51 10.8 157
Show 08477-1856 J 2647 114 6.2 161
Show 08457-1750 A 3066 50 0.4 162
Show 08476-1859 LDS 235 238 30.4 163
Show 08568-2009 ARA 648 351 10.7 164
Show 08457-1810 TDS6082 164 2.1 166

 
 
WDS 08568-1726 : COMPONENTS
 
 
  A B
B pa=184.1°
sep=4.01"
 
C pa=153.4°
sep=9891.99"
pa=153.4°
sep=9888.53"
 
 
08568-1726 A
 
 
Name HD 76635 Coord arcsec 2000 085649.69-172600.2 Mag 7.23 Spectral class F3/5V (yellow-white)
PmRA -37.00 PmDE -1.0 SAO 154781 Tycho2 6018-01742-1
HD 76635 GC 12374 ADS 7103 DM BD-16 2644
SAO
SAO 154781 DelFlag RA1950 PmRA1950 -0.0007
DE1950 PmDE1950 -0.01 Vmag 6.6 SpType F2
Double code Source 70 CatNum 12374 DM BD-16 2644
DMcomp BDsup HD 76635 M HD 0
GC 12374 RA1950rad 2.33228654 DE1950rad -0.30090711 PmRA2000 -0.0003
PmDE2000 -0.006
CCDM
Ccdm 08568-1726 RComp Comp A Note1
Note2 Discov num DRAs 1.96 DDEs -2.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.3 Sp F2 PmNote *
PmRA -7 PmDE -9 Dm number -16 2644 Cat1 BD
Name2 154781 Cat2 SAO HD 76635 M HD
ADS BDS A 7103 M ADS BDS N IDS IDS 08522S1703A
HIC 43920
 
 
08568-1726 B
 
 
Coord arcsec 2000 085649.67-172604.2 Coord calc 085649.67-172604.2 Mag 7.4 Spectral class F2 (yellow-white)
PmRA -52.00 PmDE -28.0 HIP 43920 Tycho2 6018-00535-1
BD BD-16 2644 Calc delta mag 0.17
Tycho2
Tycho2 6018-00535-1 Pflag RAmdeg 134.20698292 DEmdeg -17.43452819
PmRA -52.2 PmDE -27.5 E RAmdeg 5 E DEmdeg 7
E pmRA 1.6 E pmDE 1.7 EpRAm 1991.56 EpDEm 1990.93
Num 6 Q RAmdeg 1.2 Q DEmdeg 0.7 Q pmRA 1.2
Q pmDE 0.6 BTmag 7.844 E BTmag 0.015 VTmag 7.404
E VTmag 0.011 Prox 39 TYC T HIP 43920
CCDM B RAdeg 134.20710917 DEdeg -17.43446056 EpRA 1990 1.69
EpDE 1990 1.14 E RAdeg 5.1 E DEdeg 7.4 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 43920 Proxy H RAhms 08 56 49.72
DEdms -17 26 00.2 Vmag 6.56 VarFlag R Vmag G
RAdeg 134.207 DEdeg -17.4334 AstroRef A Plx 14.86
CCDM 08568-1726 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 182 Rho 3.833 HD 76635 BD BD-16 2644
CD CP Dm number -16 2644 VIred 0.48
SpType F3/F5V R SpType Coord arcsec 2000 085649.72-172600.2
Hipparcos 2
HIP 43920 Sn 17 So 3 Nc 2
RArad 2.3423567142 DErad -0.3042700623 Plx 16.05 PmRA -49.62
PmDE 0.63 E RArad 0.79 E DErad 0.47 E Plx 1.01
E pmRA 1.09 E pmDE 0.44 Hpmag 6.6442 E Hpmag 0.0006
SHp 0.007 VA 0 BV 0.413 E BV 0.015
VI 0.48
CCDM
Ccdm 08568-1726 RComp Comp B Note1
Note2 Discov num ARG 72 DRAs DDEs
R dRAs Year 1875 Theta 183 Rho 3.0
Obs 22 Vmag 7.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7103 M ADS BDS N IDS IDS 08522S1703B
HIC 43920
 
 
08568-1726 C
 
 
Coord arcsec 2000 090159.56-195338.1 Mag 8.75 Spectral class G3V (yellow) PmRA -56.00
PmDE -19.0 Calc delta mag 1.52 Calc coord yes