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Doubles in session


Current system
17221-7007
FIN 373
Iot Aps


Nearby doubles
11' : 17202-7003
I 104

17' : 17225-6951
KIR 19

24' : 17262-7018
TDT 350

30' : 17165-7014
UC 3314

30' : 17183-6946
UC 3319

36' : 17269-7034
TDT 354

37' : 17187-7040
TDT 302

39' : 17205-7045
TDT 314

40' : 17285-6946
TDT 371

45' : 17189-7049
CRI 17AB

52' : 17135-7035
TOB 338

54' : 17322-7022
TDT 402

58' : 17187-6913
HJ 4924

59' : 17336-7004
TDT 412

60' : 17109-7027
TDT 253

61' : 17332-7029
TDT 405

67' : 17117-6928
TDT 261

67' : 17225-6901
UC 3332

69' : 17258-7114
B 2835

72' : 17301-7107
TDT 384

72' : 17088-7032
TDT 231

73' : 17303-7107
B 2409

75' : 17282-6900
UC 3348

78' : 17092-7050
UC 3300

79' : 17082-6936
JNN 319

80' : 17315-7112
B 2838



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.

17221-7007 FIN 373 (Iot Aps)

 
 
17h 22m 05.87s -70° 07' 23.5" P.A. 125.00 sep 0.1 mag 5.90,6.46 Sp B9V+B9.5V dist. 404.86 pc (1320.65 l.y.)
 
 
Coord 2000 17221-7007 Discov num FIN 373 Comp Coord arcsec 2000 17 22 05.87 -70 07 23.5
Date first 1960 Date last 2021 Obs 14
Pa first 119 Pa last 125.3 P.A. Now (θ) 125.3°
Sep first 0.1 Sep last 0.083 Sep. Now (ρ) 0.083"
Mag pri 5.90 Mag sec 6.46 delta mag (ΔM) 0.56 Spectral class B9V+B9.5V (blue-white/blue-white)
Pri motion ra -006 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Iot Aps Var name NSV8509 Aps Constellation Apus SAO 257491
HIP 84979 Tycho2 9280-00646-1 Gaia DR2 5810861541976948096 HD 156190
HR 6411 GC 23388 CP CP-69 2719 Bayer Iota Apodis
Bayer name Iot Aps FK5 642 Distance 404.86 Distance ly 1320.65
Bayer greek ι Aps
 
 
ORBITAL ELEMENTS
 
 
Period (P)160y Periastron (T)1998.2y Semi-major axis (a)0.14a
Eccentricity (e)0.203 Inclination (i)104.2° Longitude of periastron (ω)55.3°
Node (Ω)288.2° Notesn ReferenceTok2018b
Equinox2000 Last observation2017 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 263.9 0.058
2001 260.5 0.053
2002 256.4 0.048
2003 251.4 0.044
2004 245.2 0.039
2005 237.5 0.035
2006 227.9 0.032
2007 216.5 0.029
2008 203.7 0.028
2009 190.5 0.029
2010 178.1 0.030
2011 167.4 0.033
2012 158.6 0.037
2013 151.6 0.041
2014 145.9 0.046
2015 141.3 0.051
2016 137.6 0.056
2017 134.4 0.061
2018 131.8 0.066
2019 129.5 0.071
2020 127.6 0.076
2021 125.8 0.081
2022 124.3 0.086
2023 123.0 0.091
2024 121.7 0.095
2025 120.6 0.100
2026 119.6 0.104
2027 118.7 0.108
2028 117.8 0.112
2029 117.0 0.116
2030 116.2 0.120


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


 
  


wds17221-7007g.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17221-7007 FIN 373 (Iot Aps) : NOTES
 
 
discov_num notes refcode
FIN 373 iot Aps
Docobo & Andrade (2013) derive a dynamical parallax of 3.89 +/- 0.26
mas and component masses 3.89 +/- 1.02 and 3.45 +/- 0.90 Msun. See
paper for extensive notes on this system. Doc2013d
 
 
REFERENCES
 
 
refcode metd author reference
Doc2013d orb - Docobo, J.A. & Andrade, M. 2013MNRAS.428..321D
Doc2013d MNRAS 428, 321, 2013
Tok2018b orb j Tokovinin, A. 2018IAUDS.194....1T
Tok2018b Inf. Circ. 194, 1, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 FIN Finsen, W.S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17221-7007 FIN 373 1992 8 290 0.1 5.90 6.46 B9V+B9.5V NO 172205.87-700723.5
17221-7007 FIN 373 2009 9 228 0.0 5.90 6.46 B9V+B9.5V NO 172205.87-700723.5
17221-7007 FIN 373 2014 10 145 0.0 5.90 6.46 B9V+B9.5V NO 172205.87-700723.5
17221-7007 FIN 373 2015 11 140 0.1 5.90 6.46 B9V+B9.5V NO 172205.87-700723.5
17221-7007 FIN 373 2017 12 134 0.1 5.90 6.46 B9V+B9.5V NO 172205.87-700723.5
17221-7007 FIN 373 2018 13 130 0.1 5.90 6.46 B9V+B9.5V NO 172205.87-700723.5
17221-7007 FIN 373 2021 14 125 0.1 5.90 6.46 B9V+B9.5V NO 172205.87-700723.5

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

 
 
WDS 17221-7007 FIN 373 (Iot Aps) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17221-7007 FIN 373 (Iot Aps) : MEASURES
 
 
No records found.

 
 
WDS 17221-7007 (Iot Aps) : VIRTUAL EYEPIECE
 
 

17221-7007 FIN 373A mag 5.9 Sp B9V 17221-7007 FIN 373B mag 6.46 Sp B9.5V 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 17221-7007 (Iot Aps) : ALADIN DSS IMAGE @ 17h 22m 05.87s -70° 07' 23.5"
 
 
 
 
WDS 17221-7007 FIN 373 (Iot Aps) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17221-7007 FIN 373 distance=0' 17202-7003 I 104 distance=11' 17225-6951 KIR 19 distance=17' 17262-7018 TDT 350 distance=24' 17165-7014 UC 3314 distance=30' 17183-6946 UC 3319 distance=30' 17269-7034 TDT 354 distance=36' 17187-7040 TDT 302 distance=37' 17205-7045 TDT 314 distance=39' 17285-6946 TDT 371 distance=40' 17189-7049 CRI 17BC distance=45' 17189-7049 CRI 17AB distance=45' 17135-7035 TOB 338 distance=52' 17322-7022 TDT 402 distance=54' 17187-6913 HJ 4924 distance=58' 17336-7004 TDT 412 distance=59' 17109-7027 TDT 253 distance=60' 17332-7029 TDT 405 distance=61' 17117-6928 TDT 261 distance=67' 17225-6901 UC 3332 distance=67' 17258-7114 B 2835 distance=69' 17348-7034 HEI 248BC distance=70' 17348-7034 HEI 248A,BC distance=70' 17301-7107 TDT 384 distance=72' 17088-7032 TDT 231 distance=72' 17303-7107 B 2409 distance=73' 17282-6900 UC 3348 distance=75' 17092-7050 UC 3300 distance=78' 17082-6936 JNN 319 distance=79' 17315-7112 B 2838 distance=80' 17071-7040 FIN 427 distance=83' 17296-7122 TDT 379 distance=84' 17364-6920 TOB 342 distance=89' 17290-7131 TDT 377 distance=90' 17341-7115 KPP4043 distance=91' 17243-7138 HEI 387 distance=91' 17126-6851 UC 3305 distance=92' 17378-7058 TDT 442 distance=94' 17048-6934 UC 3287 distance=96' 17143-7135 UC 3309 distance=96' 17413-7016 HEI 251 distance=97' 17393-6928 TDT 452 distance=98' 17285-7141 TDT 372 distance=99' 17358-7124 B 2411 distance=103' 17162-7146 B 2405 distance=103' 17022-7037 TDT 187 distance=105' 17115-6839 DON 824 distance=105' 17408-7105 HEI 250 distance=109' 17113-7144 B 2045 distance=110' 17189-6818 TDT 303 distance=111' 17160-6819 DON 826 distance=113' 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 17221-7007 FIN 373 125 0.1
Show 17202-7003 I 104 127 0.6 11
Show 17225-6951 KIR 19 79 37.7 17
Show 17262-7018 TDT 350 38 0.6 24
Show 17165-7014 UC 3314 71 94.1 30
Show 17183-6946 UC 3319 222 51.7 30
Show 17269-7034 TDT 354 277 0.9 36
Show 17187-7040 TDT 302 335 0.6 37
Show 17205-7045 TDT 314 192 0.4 39
Show 17285-6946 TDT 371 181 0.5 40
Show 17189-7049 CRI 17 BC 316 5.2 45
Show 17189-7049 CRI 17 AB 3 13.8 45
Show 17135-7035 TOB 338 350 29.7 52
Show 17322-7022 TDT 402 188 0.7 54
Show 17187-6913 HJ 4924 87 12.7 58
Show 17336-7004 TDT 412 303 0.6 59
Show 17109-7027 TDT 253 182 0.6 60
Show 17332-7029 TDT 405 39 0.6 61
Show 17117-6928 TDT 261 76 1.5 67
Show 17225-6901 UC 3332 182 29.0 67
Show 17258-7114 B 2835 38 5.1 69
Show 17348-7034 HEI 248 BC 264 1.1 70
Show 17348-7034 HEI 248 A,BC 357 28.6 70
Show 17301-7107 TDT 384 175 1.7 72
Show 17088-7032 TDT 231 268 1.0 72
Show 17303-7107 B 2409 120 1.6 73
Show 17282-6900 UC 3348 264 26.8 75
Show 17092-7050 UC 3300 168 22.5 78
Show 17082-6936 JNN 319 9 0.4 79
Show 17315-7112 B 2838 40 12.6 80
Show 17071-7040 FIN 427 6 7.3 83
Show 17296-7122 TDT 379 24 1.2 84
Show 17364-6920 TOB 342 85 21.0 89
Show 17290-7131 TDT 377 206 0.5 90
Show 17341-7115 KPP4043 235 8.0 91
Show 17243-7138 HEI 387 5 1.6 91
Show 17126-6851 UC 3305 154 10.6 92
Show 17378-7058 TDT 442 194 0.4 94
Show 17048-6934 UC 3287 85 66.6 96
Show 17143-7135 UC 3309 86 11.4 96
Show 17413-7016 HEI 251 89 1.0 97
Show 17393-6928 TDT 452 157 0.4 98
Show 17285-7141 TDT 372 122 2.6 99
Show 17358-7124 B 2411 344 0.4 103
Show 17162-7146 B 2405 293 1.2 103
Show 17022-7037 TDT 187 161 1.9 105
Show 17115-6839 DON 824 216 2.3 105
Show 17408-7105 HEI 250 220 1.3 109
Show 17113-7144 B 2045 108 0.6 110
Show 17189-6818 TDT 303 6 0.5 111
Show 17160-6819 DON 826 207 2.7 113

 
 
WDS 17221-7007 : COMPONENTS
 
 
  A
B pa=154.3°
sep=0.05"
 
 
17221-7007 A
 
 
Componente originario normalizzato AB Name Iot Aps Coord arcsec 2000 172205.87-700723.5 Mag 5.9
Spectral class B9V (blue-white) PmRA -6.00 PmDE -12.0 SAO 257491
HIP 84979 Tycho2 9280-00646-1 HD 156190 HR 6411
GC 23388 CP CP-69 2719 Bayer Iota Bayer name Iot
FK5 642
Tycho2
Tycho2 9280-00646-1 Pflag RAmdeg 260.52448243 DEmdeg -70.12320647
PmRA -2.3 PmDE -11.1 E RAmdeg 3 E DEmdeg 3
E pmRA 0.7 E pmDE 0.7 EpRAm 1991.27 EpDEm 1991.51
Num 19 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.3
Q pmDE 1.1 BTmag 5.322 E BTmag 0.014 VTmag 5.377
E VTmag 0.009 Prox 999 TYC T HIP 84979
CCDM AB RAdeg 260.52449806 DEdeg -70.12318139 EpRA 1990 1.61
EpDE 1990 1.83 E RAdeg 3.2 E DEdeg 3.1 Posflg P
Corr 0.0
SAO
SAO 257491 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 -0.015 Vmag 5.6 SpType B8
Double code Source 74 CatNum 642 DM CP-69 2719
DMcomp BDsup HD 156190 M HD 0
GC 23388 RA1950rad 4.52261881 DE1950rad -1.22302012 PmRA2000 -0.0011
PmDE2000 -0.014
Hipparcos
Catalog H HIP 84979 Proxy H RAhms 17 22 05.88
DEdms -70 07 23.4 Vmag 5.39 VarFlag R Vmag H
RAdeg 260.525 DEdeg -70.1232 AstroRef * Plx 2.85
CCDM 17221-7007 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 100 Rho 0.091 HD 156190 BD
CD CP CP-69 2719 Dm number -69 2719 VIred -0.01
SpType B8/B9Vn... R SpType Coord arcsec 2000 172205.88-700723.4
Hipparcos 2
HIP 84979 Sn 55 So 3 Nc 2
RArad 4.5470102288 DErad -1.2238803525 Plx 2.47 PmRA -1.94
PmDE -10.99 E RArad 0.2 E DErad 0.38 E Plx 0.5
E pmRA 0.21 E pmDE 0.46 Hpmag 5.3884 E Hpmag 0.0004
SHp 0.006 VA 0 BV -0.042 E BV 0.001
VI -0.02
CCDM
Ccdm 17221-7007 RComp Comp A Note1
Note2 Discov num DRAs -0.10 DDEs -23.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.4 Sp B8 PmNote *
PmRA 4 PmDE -15 Dm number -69 2719 Cat1 CPD
Name2 257491 Cat2 SAO HD 156190 M HD
ADS BDS M ADS BDS N IDS IDS 17109S7001A
HIC 84979
 
 
17221-7007 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 172205.87-700723.5 Mag 6.46 Spectral class B9.5V (blue-white)
Calc delta mag 0.56 Calc coord yes
CCDM
Ccdm 17221-7007 RComp Comp B Note1
Note2 Discov num FIN 373 DRAs DDEs
R dRAs Year 1960 Theta 119 Rho 0.1
Obs 1 Vmag 6.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17109S7001B
HIC 84979