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Doubles in session


Current system
17305-1446
HU 177
HD 158561


Nearby doubles
21' : 17295-1501
RST3976

73' : 17318-1336
HU 178

83' : 17309-1609
J 2506

86' : 17355-1400
HU 180

95' : 17265-1600
KPP 958

104' : 17262-1607
ARA 90

109' : 17376-1524
RST5090AB

111' : 17350-1616
ARA 94

117' : 17247-1606
HU 174

117' : 17384-1504
HLD 31

118' : 17269-1632
ELP 41

118' : 17332-1637
ARA 93

121' : 17261-1628
RST3974

121' : 17385-1518
FOX 205

122' : 17284-1644
ARA 92

123' : 17293-1647
HDS2470

129' : 17246-1312
RST3973

129' : 17268-1642
ARA 91

130' : 17388-1536
ALD 64

131' : 17216-1457
GWP2703

132' : 17297-1657
KPP 761

134' : 17387-1547
RST3982

137' : 17222-1553
FOX 200AB

138' : 17319-1230
GWP2722

138' : 17254-1643
HDS2461

139' : 17399-1511
FOX 206



Selections
Full WDS
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.

17305-1446 HU 177 (HD 158561)

 
 
17h 30m 32.15s -14° 46' 21.3" P.A. 172.00 sep 0.3 mag 8.50,9.60 Sp F0V dist. 197.63 pc (644.67 l.y.)
 
 
Coord 2000 17305-1446 Discov num HU  177 Comp Coord arcsec 2000 17 30 32.15 -14 46 21.3
Date first 1900 Date last 2018 Obs 17
Pa first 85 Pa last 171.5 P.A. Now (θ) 171.5°
Sep first 0.4 Sep last 0.273 Sep. Now (ρ) 0.273"
Mag pri 8.50 Mag sec 9.60 delta mag (ΔM) 1.1 Spectral class F0V (yellow-white)
Pri motion ra -002 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 158561 Constellation Serpens SAO 160594 HIP 85679
Tycho2 5671-00844-1 Gaia DR2 4137248232844261632 HD 158561 ADS 10595
BD BD-14 4665 Distance 197.63 Distance ly 644.67
 
 
ORBITAL ELEMENTS
 
 
Period (P)220.41y Periastron (T)1987.21y Semi-major axis (a)0.293a
Eccentricity (e)0.541 Inclination (i)156.3° Longitude of periastron (ω)252.6°
Node (Ω)179.5° Notes ReferenceMsn2017a
Equinox2000 Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 215.1 0.169
2001 211.4 0.175
2002 208.0 0.180
2003 204.8 0.186
2004 201.8 0.192
2005 199.0 0.198
2006 196.3 0.204
2007 193.8 0.210
2008 191.4 0.215
2009 189.1 0.221
2010 186.9 0.227
2011 184.9 0.232
2012 182.9 0.237
2013 181.1 0.243
2014 179.3 0.248
2015 177.5 0.253
2016 175.9 0.258
2017 174.3 0.263
2018 172.8 0.268
2019 171.3 0.272
2020 169.9 0.277
2021 168.5 0.281
2022 167.1 0.286
2023 165.8 0.290
2024 164.6 0.294
2025 163.3 0.298
2026 162.1 0.302
2027 161.0 0.306
2028 159.8 0.310
2029 158.7 0.314
2030 157.6 0.317


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


 
  


wds17305-1446a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17305-1446 HU 177 (HD 158561) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Msn2017a orb - Miles, K.N. & Mason, B.D. 2017IAUDS.191....1M
Msn2017a Inf. Circ. 191, 1, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 HU Hussey, W.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17305-1446 HU 177 1989 10 276 0.1 8.50 9.60 F0V O 173032.15-144621.3
17305-1446 HU 177 2008 13 189 0.2 8.50 9.60 F0V O 173032.15-144621.3
17305-1446 HU 177 2010 15 185 0.2 8.50 9.60 F0V O 173032.15-144621.3
17305-1446 HU 177 2015 16 177 0.3 8.50 9.60 F0V O 173032.15-144621.3
17305-1446 HU 177 2018 17 172 0.3 8.50 9.60 F0V O 173032.15-144621.3

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

 
 
WDS 17305-1446 HU 177 (HD 158561) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17305-1446 HU 177 (HD 158561) : MEASURES
 
 
No records found.

 
 
WDS 17305-1446 (HD 158561) : VIRTUAL EYEPIECE
 
 

17305-1446 HU 177A mag 8.5 Sp F0V 17305-1446 HU 177B sep 0.3 P.A. 171.80 mag 9.6 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 17305-1446 (HD 158561) : ALADIN DSS IMAGE @ 17h 30m 32.15s -14° 46' 21.3"
 
 
 
 
WDS 17305-1446 HU 177 (HD 158561) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17305-1446 HU 177 distance=0' 17295-1501 RST3976 distance=21' 17318-1336 HU 178 distance=73' 17255-1435 KPP 789BC distance=74' 17309-1609 J 2506 distance=83' 17355-1400 HU 180 distance=86' 17265-1600 KPP 958 distance=95' 17262-1607 ARA 90 distance=104' 17376-1524 ISO 6Aa,Ab distance=109' 17376-1524 RST5090AB distance=109' 17376-1524 DRS 61AC distance=109' 17350-1616 ARA 94 distance=111' 17247-1606 HU 174 distance=117' 17384-1504 HLD 31 distance=117' 17269-1632 ELP 41 distance=118' 17332-1637 ARA 93 distance=118' 17261-1628 RST3974 distance=121' 17385-1518 FOX 205 distance=121' 17284-1644 ARA 92 distance=122' 17293-1647 HDS2470 distance=123' 17246-1312 RST3973 distance=129' 17268-1642 ARA 91 distance=129' 17388-1536 ALD 64 distance=130' 17216-1457 GWP2703 distance=131' 17297-1657 KPP 761 distance=132' 17387-1547 RST3982 distance=134' 17222-1553 FOX 200AB distance=137' 17222-1553 FOX 200AC distance=137' 17319-1230 GWP2722 distance=138' 17254-1643 HDS2461 distance=138' 17399-1511 FOX 206 distance=139' 17385-1604 RST3981 distance=139' 17217-1542 FOX 199AB distance=140' 17217-1542 FOX 199AC distance=140' 17217-1542 ABH 89AD distance=140' 17217-1542 ABH 89AE distance=140' 17217-1542 ABH 89AF distance=140' 17217-1542 FOX 199BC distance=140' 17378-1315 CVN 56AB distance=140' 17378-1315 CVN 56AC distance=140' 17378-1315 CVN 56AD distance=140' 17378-1315 CVN 56AE distance=140' 17378-1315 CVN 56AF distance=140' 17378-1315 CVN 56AG distance=140' 17378-1315 CVN 56AH distance=140' 17378-1315 CVN 56AI distance=140' 17378-1315 CVN 56AJ distance=140' 17378-1315 CVN 56AK distance=140' 17378-1315 CVN 56AL distance=140' 17378-1315 CVN 56AM distance=140' 17378-1315 CVN 56AN distance=140' 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 17305-1446 HU 177 172 0.3
Show 17295-1501 RST3976 311 0.2 21
Show 17318-1336 HU 178 354 2.3 73
Show 17255-1435 KPP 789 BC 177 6.8 74
Show 17309-1609 J 2506 202 4.4 83
Show 17355-1400 HU 180 198 0.4 86
Show 17265-1600 KPP 958 64 7.9 95
Show 17262-1607 ARA 90 45 5.2 104
Show 17376-1524 ISO 6 Aa,Ab 132 0.3 109
Show 17376-1524 RST5090 AB 78 24.5 109
Show 17376-1524 DRS 61 AC 58 999.9 109
Show 17350-1616 ARA 94 98 8.0 111
Show 17247-1606 HU 174 40 2.0 117
Show 17384-1504 HLD 31 330 1.7 117
Show 17269-1632 ELP 41 246 1.5 118
Show 17332-1637 ARA 93 64 12.9 118
Show 17261-1628 RST3974 146 0.8 121
Show 17385-1518 FOX 205 193 14.1 121
Show 17284-1644 ARA 92 160 16.0 122
Show 17293-1647 HDS2470 90 8.2 123
Show 17246-1312 RST3973 304 0.4 129
Show 17268-1642 ARA 91 170 13.2 129
Show 17388-1536 ALD 64 194 1.9 130
Show 17216-1457 GWP2703 171 334.6 131
Show 17297-1657 KPP 761 279 6.6 132
Show 17387-1547 RST3982 156 1.7 134
Show 17222-1553 FOX 200 AB 17 2.6 137
Show 17222-1553 FOX 200 AC 273 17.7 137
Show 17319-1230 GWP2722 285 49.3 138
Show 17254-1643 HDS2461 196 0.2 138
Show 17399-1511 FOX 206 7 7.2 139
Show 17385-1604 RST3981 193 4.9 139
Show 17217-1542 FOX 199 AB 270 10.1 140
Show 17217-1542 FOX 199 AC 61 10.2 140
Show 17217-1542 ABH 89 AD 76 72.8 140
Show 17217-1542 ABH 89 AE 97 36.5 140
Show 17217-1542 ABH 89 AF 38 27.7 140
Show 17217-1542 FOX 199 BC 75 19.6 140
Show 17378-1315 CVN 56 AB 86 3.9 140
Show 17378-1315 CVN 56 AC 311 4.6 140
Show 17378-1315 CVN 56 AD 283 4.6 140
Show 17378-1315 CVN 56 AE 311 5.0 140
Show 17378-1315 CVN 56 AF 358 5.2 140
Show 17378-1315 CVN 56 AG 342 5.3 140
Show 17378-1315 CVN 56 AH 161 5.7 140
Show 17378-1315 CVN 56 AI 254 5.9 140
Show 17378-1315 CVN 56 AJ 167 6.7 140
Show 17378-1315 CVN 56 AK 283 7.0 140
Show 17378-1315 CVN 56 AL 20 7.2 140
Show 17378-1315 CVN 56 AM 245 7.4 140
Show 17378-1315 CVN 56 AN 85 7.9 140

 
 
WDS 17305-1446 : COMPONENTS
 
 
  A
B pa=171.8°
sep=0.27"
 
 
17305-1446 A
 
 
Componente originario normalizzato AB Name HD 158561 Coord arcsec 2000 173032.15-144621.3 Mag 8.5
Spectral class F0V (yellow-white) PmRA -2.00 PmDE 3.0 SAO 160594
HIP 85679 Tycho2 5671-00844-1 HD 158561 BD BD-14 4665
Tycho2
Tycho2 5671-00844-1 Pflag RAmdeg 262.63393654 DEmdeg -14.77256735
PmRA -2.0 PmDE 1.3 E RAmdeg 7 E DEmdeg 10
E pmRA 1.1 E pmDE 1.2 EpRAm 1990.50 EpDEm 1989.41
Num 11 Q RAmdeg 1.1 Q DEmdeg 0.7 Q pmRA 1.3
Q pmDE 0.7 BTmag 9.261 E BTmag 0.019 VTmag 8.808
E VTmag 0.015 Prox 999 TYC T HIP 85679
CCDM RAdeg 262.63394111 DEdeg -14.77257056 EpRA 1990 1.69
EpDE 1990 1.31 E RAdeg 7.4 E DEdeg 9.8 Posflg
Corr 0.2
SAO
SAO 160594 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 -0.01 Vmag 8.9 SpType A5
Double code Source 21 CatNum 6276 DM BD-14 4665
DMcomp BDsup HD 158561 M HD 0
GC RA1950rad 4.57137598 DE1950rad -0.25717801 PmRA2000 0.0009
PmDE2000 -0.007
Hipparcos
Catalog H HIP 85679 Proxy RAhms 17 30 32.15
DEdms -14 46 21.3 Vmag 8.72 VarFlag R Vmag H
RAdeg 262.634 DEdeg -14.7726 AstroRef Plx 5.61
CCDM 17305-1446 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 158561 BD BD-14 4665
CD CP Dm number -14 4665 VIred 0.5
SpType F0V R SpType Coord arcsec 2000 173032.15-144621.3
Hipparcos 2
HIP 85679 Sn 5 So 0 Nc 1
RArad 4.5838269464 DErad -0.257830039 Plx 5.06 PmRA -3.65
PmDE 1.74 E RArad 0.93 E DErad 0.55 E Plx 0.97
E pmRA 1.15 E pmDE 0.54 Hpmag 8.8148 E Hpmag 0.0013
SHp 0.012 VA 0 BV 0.444 E BV 0.018
VI 0.51
CCDM
Ccdm 17305-1446 RComp Comp A Note1
Note2 Discov num DRAs 2.20 DDEs -21.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp A5 PmNote *
PmRA 10 PmDE -10 Dm number -14 4665 Cat1 BD
Name2 160594 Cat2 SAO HD 158561 M HD
ADS BDS A10595 M ADS BDS N IDS IDS 17248S1441A
HIC 85679
 
 
17305-1446 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 173032.15-144621.6 Mag 9.6 Calc delta mag 1.1
Calc coord yes
CCDM
Ccdm 17305-1446 RComp Comp B Note1
Note2 Discov num HU 177 DRAs DDEs
R dRAs Year 1958 Theta 040 Rho 0.3
Obs 7 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10595 M ADS BDS N IDS IDS 17248S1441B
HIC 85679