17220-2500 CHR 182 (The Oph)

 
 
17h 22m 00.58s -24° 59' 58.2" P.A. 54.00 sep 0.2 mag 3.40,6.20 Sp B2IV dist. 133.69 pc (436.1 l.y.)
 
 
Coord 2000 17220-2500 Discov num CHR 182 Comp Coord arcsec 2000 17 22 00.58 -24 59 58.2
Date first 1992 Date last 2021 Obs 11
Pa first 234 Pa last 54.1 P.A. Now (θ) 54.9°
Sep first 0.2 Sep last 0.156 Sep. Now (ρ) 0.119"
Mag pri 3.40 Mag sec 6.20 delta mag (ΔM) 2.8 Spectral class B2IV (blue-white)
Pri motion ra -004 Sec motion ra
Pri motion dec -020 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name The Oph Constellation Ophiuchus SAO 185320 HIP 84970
Tycho2 6829-00577-1 Gaia DR2 4110730486344995456 HD 157056 HR 6453
GC 23451 CD CD-2413292 CP CP-24 5876 Bayer Theta Ophiuchi
Bayer name The Oph Flamsteed 42 Ophiuchi Flamsteed name 42 Oph FK5 644
Distance 133.69 Distance ly 436.1 Bayer greek θ Oph
 
 
ORBITAL ELEMENTS
 
 
Period (P)28.21y Periastron (T)1995.29y Semi-major axis (a)0.229a
Eccentricity (e)0.4 Inclination (i)89.2° Longitude of periastron (ω)47°
Node (Ω)54.4° Notes ReferenceTok2021f
Equinox Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 234.0 0.195
2001 234.2 0.231
2002 234.3 0.256
2003 234.5 0.272
2004 234.6 0.280
2005 234.7 0.281
2006 234.8 0.276
2007 234.9 0.265
2008 235.0 0.249
2009 235.2 0.228
2010 235.4 0.203
2011 235.6 0.175
2012 236.0 0.143
2013 236.5 0.108
2014 237.6 0.072
2015 241.2 0.033
2016 22.6 0.007
2017 50.0 0.045
2018 52.3 0.082
2019 53.2 0.116
2020 53.7 0.142
2021 54.1 0.156
2022 54.4 0.150
2023 54.9 0.119
2024 56.0 0.063
2025 218.5 0.008
2026 232.8 0.077
2027 233.6 0.137
2028 234.0 0.187
2029 234.2 0.224
2030 234.3 0.251


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



 
 


wds17220-2500a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 17220-2500 CHR 182 (The Oph) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2021f orb - Tokovinin, A. 2021IAUDS.204....1T
Tok2021f Inf. Circ. 204, 1, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17220-2500 CHR 182 2000 2 252 0.3 3.27   B2IV 172200.58-245958.2
17220-2500 CHR 182 2014 3 58 0.1 3.40 6.20 B2IV 172200.58-245958.2
17220-2500 CHR 182 2017 6 54 0.1 3.40 6.20 B2IV 172200.58-245958.2
17220-2500 CHR 182 2018 7 49 0.1 3.40 6.20 B2IV 172200.58-245958.2
17220-2500 CHR 182 2019 8 53 0.1 3.40 6.20 B2IV 172200.58-245958.2
17220-2500 CHR 182 2020 10 54 0.1 3.40 6.20 B2IV 172200.58-245958.2
17220-2500 CHR 182 2021 11 54 0.2 3.40 6.20 B2IV 172200.58-245958.2

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

 
 
WDS 17220-2500 CHR 182 (The Oph) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17220-2500 CHR 182 (The Oph) : MEASURES
 
 
No records found.

 
 
WDS 17220-2500 (The Oph) : VIRTUAL EYEPIECE
 
 

17220-2500 CHR 182A mag 3.4 Sp B2IV 17220-2500 CHR 182B sep 0.1 P.A. 51.40 mag 6.2 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 17220-2500 (The Oph) : ALADIN DSS IMAGE @ 17h 22m 00.58s -24° 59' 58.2"
 
 
 
 
WDS 17220-2500 CHR 182 (The Oph) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


17220-2500  CHR 182 distance=0' 17231-2353  DON 835 distance=69' 17180-2417  H 3  25 distance=70' 17228-2609  RST1957 distance=70' 17212-2350  LSC  73 distance=71' 17189-2400  HLD 132AB distance=74' 17189-2400  H 6  54AC distance=74' 17269-2423  I  1322 distance=76' 17181-2404  LLO  13 distance=77' 17264-2411  OCC  64AB distance=78' 17264-2411  GAT  22AB,C distance=78' 17276-2440  HDS2466 distance=79' 17279-2508  RST3098 distance=81' 17283-2513  RST3100 distance=86' 17261-2353  ARA2202 distance=88' 17160-2424  RST3081 distance=90' 17286-2531  BU  129 distance=96' 17161-2556  RST3082 distance=98' 17146-2453  FIN  10 distance=100' 17147-2515  BRT3044 distance=101' 17268-2620  BU  128 distance=104' 17290-2420  RST3105 distance=104' 17177-2638  H 1  35 distance=115' 17155-2346  ARA2200BC distance=116' 17299-2551  RST3106 distance=120' 17163-2330  BRT1505 distance=120' 17131-2532  RST3076 distance=126' 17302-2402  RST5433 distance=126' 17216-2252  TDT 320 distance=128' 17126-2516  RST3075 distance=130' 17257-2659  I  1320 distance=130' 17153-2636  SHJ 243AB (Guniibuu) distance=132' 17153-2636  SHJ 243AC (Guniibuu) distance=132' 17153-2636  SHJ 243AE (Guniibuu) distance=132' 17153-2636  SHJ 243AD (Guniibuu) distance=132' 17153-2636  SHJ 243BD distance=132' 17244-2248  B   339AB distance=136' 17244-2248  HJ 4948AC distance=136' 17209-2721  BU  127 distance=142' 17185-2245  KIR  25 distance=143' 17115-2519  HU 1522 distance=145' 17179-2247  ARA1818 distance=145' 17136-2330  HDS2434 distance=146' 17114-2531  DBR 288 distance=148' 17287-2304  RST3103 distance=148' 17200-2234  RST3087 distance=149' 17112-2536  DBR 287 distance=151' 17108-2457  HJ  589 distance=152' 17316-2616  CHR 229 distance=153' 17207-2734  RST1953 distance=155' 17165-2245  ARA1817 distance=156' 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 17220-2500 CHR 182 54 0.2
Show 17231-2353 DON 835 196 1.2 69
Show 17180-2417 H 3 25 355 10.8 70
Show 17228-2609 RST1957 102 1.0 70
Show 17212-2350 LSC 73 182 0.4 71
Show 17189-2400 HLD 132 AB 30 2.0 74
Show 17189-2400 H 6 54 AC 142 79.0 74
Show 17269-2423 I 1322 132 0.2 76
Show 17181-2404 LLO 13 309 8.0 77
Show 17264-2411 OCC 64 AB -1 0.1 78
Show 17264-2411 GAT 22 AB,C 189 18.1 78
Show 17276-2440 HDS2466 197 0.4 79
Show 17279-2508 RST3098 166 0.3 81
Show 17283-2513 RST3100 139 0.4 86
Show 17261-2353 ARA2202 26 16.1 88
Show 17160-2424 RST3081 284 0.6 90
Show 17286-2531 BU 129 350 0.2 96
Show 17161-2556 RST3082 278 2.5 98
Show 17146-2453 FIN 10 201 1.1 100
Show 17147-2515 BRT3044 20 3.5 101
Show 17268-2620 BU 128 326 4.6 104
Show 17290-2420 RST3105 247 0.2 104
Show 17177-2638 H 1 35 337 5.8 115
Show 17155-2346 ARA2200 BC 195 6.6 116
Show 17299-2551 RST3106 262 3.1 120
Show 17163-2330 BRT1505 27 5.3 120
Show 17131-2532 RST3076 198 0.5 126
Show 17302-2402 RST5433 172 0.2 126
Show 17216-2252 TDT 320 71 0.5 128
Show 17126-2516 RST3075 328 0.7 130
Show 17257-2659 I 1320 192 0.5 130
Show Guniibuu 17153-2636 SHJ 243 AB 138 5.1 132
Show Guniibuu 17153-2636 SHJ 243 AC 74 732.5 132
Show Guniibuu 17153-2636 SHJ 243 AE 313 38.2 132
Show Guniibuu 17153-2636 SHJ 243 AD 342 295.5 132
Show 17153-2636 SHJ 243 BD 337 272.3 132
Show 17244-2248 B 339 AB 207 3.6 136
Show 17244-2248 HJ 4948 AC 106 13.3 136
Show 17209-2721 BU 127 91 5.4 142
Show 17185-2245 KIR 25 329 54.3 143
Show 17115-2519 HU 1522 89 1.0 145
Show 17179-2247 ARA1818 61 8.5 145
Show 17136-2330 HDS2434 10 0.2 146
Show 17114-2531 DBR 288 341 2.0 148
Show 17287-2304 RST3103 15 1.7 148
Show 17200-2234 RST3087 29 1.0 149
Show 17112-2536 DBR 287 117 1.7 151
Show 17108-2457 HJ 589 300 10.0 152
Show 17316-2616 CHR 229 191 0.4 153
Show 17207-2734 RST1953 313 1.9 155
Show 17165-2245 ARA1817 167 11.6 156

 
 
WDS 17220-2500 : COMPONENTS
 
 
  A
B pa=51.4°
sep=0.15"
 
 
17220-2500 A
 
 
Componente originario normalizzato AB Name The Oph Coord arcsec 2000 172200.58-245958.2 Mag 3.4
Spectral class B2IV (blue-white) PmRA -4.00 PmDE -20.0 SAO 185320
HIP 84970 Tycho2 6829-00577-1 HD 157056 HR 6453
GC 23451 CD CD-2413292 CP CP-24 5876 Bayer Theta Ophiuchi
Bayer name The Oph Flamsteed 42 Ophiuchi Flamsteed name 42 Oph FK5 644
Tycho2
Tycho2 6829-00577-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 3.009 E BTmag 0.014 VTmag 3.212
E VTmag 0.009 Prox 999 TYC T HIP 84970
CCDM RAdeg 260.50243278 DEdeg -24.99948833 EpRA 1990 1.79
EpDE 1990 1.23 E RAdeg 3.2 E DEdeg 3.4 Posflg
Corr 0.1
SAO
SAO 185320 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 -0.021 Vmag 3.4 SpType B3
Double code Source 74 CatNum 644 DM CD-2413292
DMcomp BDsup HD 157056 M HD 0
GC 23451 RA1950rad 4.53321324 DE1950rad -0.43548486 PmRA2000 -0.0003
PmDE2000 -0.019
Hipparcos
Catalog H HIP 84970 Proxy RAhms 17 22 00.58
DEdms -24 59 58.2 Vmag 3.27 VarFlag 1 R Vmag H
RAdeg 260.502 DEdeg -24.9995 AstroRef Plx 5.79
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 157056 BD
CD CD-2413292 CP CP-24 5876 Dm number -2413292 VIred -0.21
SpType B2IV R SpType Coord arcsec 2000 172200.58-245958.2
Hipparcos 2
HIP 84970 Sn 5 So 0 Nc 1
RArad 4.5466251777 DErad -0.4363233803 Plx 7.48 PmRA -7.37
PmDE -23.94 E RArad 0.15 E DErad 0.09 E Plx 0.17
E pmRA 0.18 E pmDE 0.1 Hpmag 3.1931 E Hpmag 0.0019
SHp 0.012 VA 1 BV -0.186 E BV 0.002
VI -0.21
CCDM
Ccdm 17220-2500 RComp Comp A Note1
Note2 Discov num DRAs 0.59 DDEs 1.8
R dRAs 81 Year Theta Rho
Obs 2 Vmag 3.3 Sp B2 PmNote @
PmRA -4 PmDE -20 Dm number -2413292 Cat1 CD
Name2 185320 Cat2 SAO HD 157056 M HD
ADS BDS M ADS BDS N IDS W IDS 17220-2500A
HIC 84970
 
 
17220-2500 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 172200.59-245958.1 Mag 6.2 Calc delta mag 2.8
Calc coord yes
CCDM
Ccdm 17220-2500 RComp Comp B Note1
Note2 Discov num CHR 182 DRAs DDEs
R dRAs Year 1992 Theta 234 Rho 0.2
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS W IDS 17220-2500B
HIC 84970