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Current system
18442+2231
COU 209 AC


Nearby doubles
8' : 18443+2224
HU 1657

11' : 18449+2234
HDS2655

31' : 18426+2209
COU 208

33' : 18420+2221
TDT1008

38' : 18428+2302
POU3495

39' : 18438+2309
POU3509

40' : 18445+2310
POU3517

40' : 18469+2243
TDT1052

43' : 18438+2312
POU3510

45' : 18451+2313
POU3527

45' : 18443+2315
POU3515

46' : 18472+2213
JNN 119

50' : 18452+2318
WLY 13

50' : 18455+2316
POU3532

50' : 18406+2230
TDT 989

50' : 18441+2320
POU3512

53' : 18453+2321
POU3530

54' : 18433+2322
POU3500

54' : 18438+2324
POU3508

55' : 18451+2323
POU3525

57' : 18435+2327
POU3505

59' : 18462+2323
POU3540

62' : 18437+2332
POU3506

62' : 18426+2329
POU3493

63' : 18445+2333
POU3516

63' : 18429+2331
POU3496



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18442+2231 COU 209 AC

 
 
18h 44m 11.63s +22° 30' 51.3" P.A. 204.00 sep 39.8 mag 10.50,12.00 Sp F8
 
 
Coord 2000 18442+2231 Discov num COU 209 Comp AC Coord arcsec 2000 18 44 11.63 +22 30 51.3
Date first 1894 Date last 2019 Obs 8
Pa first 205 Pa last 203.8 P.A. Now (θ) 203.8°
Sep first 37.5 Sep last 39.822 Sep. Now (ρ) 39.822"
Mag pri 10.50 Mag sec 12.00 delta mag (ΔM) 1.5 Spectral class F8 (yellow-white)
Pri motion ra +006 Sec motion ra -010
Pri motion dec +003 Sec motion dec -007
Notes
rPM=1.546
This double is not physical.
 
 
18442+2231 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 44 12 +22 30 51 COU 209 AB 2016 7 38 2.1 10.50 11.20 0.70
Show 18 44 12 +22 30 51 COU 209 AC 2019 8 204 39.8 10.50 12.00 1.50 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules Gaia DR2 4532383433036423936
 
 
WDS 18442+2231 COU 209 AC : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
COU Couteau, P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
18442+2231 COU 209 AC 2007 5 205 40.6 10.50 12.00 F8 D 184411.63+223051.3
18442+2231 COU 209 AC 2015 7 205 39.6 10.50 12.00 F8 184411.63+223051.3
18442+2231 COU 209 AC 2019 8 205 39.8 10.50 12.00 F8 184411.63+223051.3

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

 
 
WDS 18442+2231 COU 209 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18442+2231 COU 209 AC : MEASURES
 
 
No records found.

 
 
WDS 18442+2231 : VIRTUAL EYEPIECE
 
 

18442+2231 COU 209A mag 10.5 Sp F8 18442+2231 COU 209B sep 2.1 P.A. 37.70 mag 11.2 18442+2231 COU 209C sep 39.8 P.A. 203.80 mag 12 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18442+2231 : ALADIN DSS IMAGE @ 18h 44m 11.63s +22° 30' 51.3"
 
 
 
 
WDS 18442+2231 COU 209 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18442+2231 COU 209AC distance=0' 18443+2224 HU 1657 distance=8' 18449+2234 HDS2655 distance=11' 18426+2209 COU 208 distance=31' 18420+2221 TDT1008 distance=33' 18428+2302 POU3495 distance=38' 18438+2309 POU3509 distance=39' 18445+2310 POU3517 distance=40' 18469+2243 TDT1052 distance=40' 18438+2312 POU3510 distance=43' 18451+2313 POU3527 distance=45' 18443+2315 POU3515 distance=45' 18472+2213 JNN 119 distance=46' 18452+2318 WLY 13 distance=50' 18455+2316 POU3532 distance=50' 18406+2230 TDT 989 distance=50' 18441+2320 POU3512 distance=50' 18453+2321 POU3530 distance=53' 18433+2322 POU3500 distance=54' 18438+2324 POU3508 distance=54' 18451+2323 POU3525 distance=55' 18435+2327 POU3505 distance=57' 18462+2323 POU3540 distance=59' 18437+2332 POU3506 distance=62' 18426+2329 POU3493 distance=62' 18445+2333 POU3516 distance=63' 18429+2331 POU3496 distance=63' 18412+2318 POU3479 distance=64' 18467+2325 POU3546 distance=65' 18437+2337 POU3507 distance=67' 18490+2219 TDT1068 distance=68' 18408+2142 HU 324 distance=68' 18452+2338 POU3528 distance=70' 18490+2213 GRV 241 distance=70' 18416+2331 POU3486 distance=70' 18457+2337 POU3535 distance=70' 18465+2334 POU3543 distance=71' 18467+2333 POU3545 distance=71' 18453+2341 POU3529 distance=73' 18460+2339 POU3537 distance=74' 18439+2344 POU3511 distance=74' 18389+2222 COU 207 distance=74' 18431+2345 POU3498 distance=76' 18457+2343 POU3534 distance=76' 18461+2344 POU3539 distance=78' 18434+2349 POU3501AB distance=79' 18434+2349 POU3502AC distance=79' 18425+2116 BRT2448 distance=79' 18402+2328 POU3464 distance=80' 18473+2125 GRV 239 distance=80' 18400+2324 POU3460 distance=80' 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 18442+2231 COU 209 AB 38 2.1 0
Show 18442+2231 COU 209 AC 204 39.8 0
Show 18443+2224 HU 1657 244 0.3 8
Show 18449+2234 HDS2655 196 0.3 11
Show 18426+2209 COU 208 306 0.3 31
Show 18420+2221 TDT1008 41 2.4 33
Show 18428+2302 POU3495 40 5.4 38
Show 18438+2309 POU3509 37 7.1 39
Show 18445+2310 POU3517 310 6.2 40
Show 18469+2243 TDT1052 77 0.5 40
Show 18438+2312 POU3510 248 13.1 43
Show 18451+2313 POU3527 266 9.4 45
Show 18443+2315 POU3515 239 12.1 45
Show 18472+2213 JNN 119 270 0.4 46
Show 18452+2318 WLY 13 263 11.1 50
Show 18455+2316 POU3532 211 9.8 50
Show 18406+2230 TDT 989 233 2.4 50
Show 18441+2320 POU3512 54 11.6 50
Show 18453+2321 POU3530 301 11.3 53
Show 18433+2322 POU3500 248 12.1 54
Show 18438+2324 POU3508 27 11.6 54
Show 18451+2323 POU3525 233 10.2 55
Show 18435+2327 POU3505 258 5.0 57
Show 18462+2323 POU3540 213 11.9 59
Show 18437+2332 POU3506 84 8.9 62
Show 18426+2329 POU3493 177 6.2 62
Show 18445+2333 POU3516 198 4.7 63
Show 18429+2331 POU3496 52 9.7 63
Show 18412+2318 POU3479 178 7.2 64
Show 18467+2325 POU3546 48 11.5 65
Show 18437+2337 POU3507 104 7.8 67
Show 18490+2219 TDT1068 15 0.5 68
Show 18408+2142 HU 324 113 0.9 68
Show 18452+2338 POU3528 2 5.8 70
Show 18490+2213 GRV 241 175 27.1 70
Show 18416+2331 POU3486 349 21.1 70
Show 18457+2337 POU3535 42 16.9 70
Show 18465+2334 POU3543 30 8.5 71
Show 18467+2333 POU3545 244 6.3 71
Show 18453+2341 POU3529 160 10.8 73
Show 18460+2339 POU3537 336 5.5 74
Show 18439+2344 POU3511 145 23.2 74
Show 18389+2222 COU 207 298 1.6 74
Show 18431+2345 POU3498 264 14.0 76
Show 18457+2343 POU3534 184 10.5 76
Show 18461+2344 POU3539 236 5.5 78
Show 18434+2349 POU3501 AB 230 4.0 79
Show 18434+2349 POU3502 AC 318 12.4 79
Show 18425+2116 BRT2448 294 3.8 79
Show 18402+2328 POU3464 332 9.6 80
Show 18473+2125 GRV 239 244 7.6 80

 
 
WDS 18442+2231 : COMPONENTS
 
 
  A B
B pa=37.7°
sep=2.06"
 
C pa=203.8°
sep=39.82"
pa=204.5°
sep=41.83"
 
 
18442+2231 A
 
 
Coord arcsec 2000 184411.63+223051.3 Mag 10.5 Spectral class F8 (yellow-white) PmRA 15.00
PmDE 16.0
CCDM
Ccdm 18442+2231 RComp Comp A Note1
Note2 Discov num DRAs -0.38 DDEs -6.9
R dRAs 10 Year Theta Rho
Obs 3 Vmag 10.5 Sp PmNote *
PmRA -2 PmDE 35 Dm number +22 3469 Cat1 BD
Name2 +22 1852 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 18400N2225A
HIC
 
 
18442+2231 B
 
 
Coord arcsec 2000 184411.72+223052.9 Mag 11.2 Delta magnitude 0.7 Coordinate calculated yes
CCDM
Ccdm 18442+2231 RComp Comp B Note1
Note2 Discov num COU 209 DRAs DDEs
R dRAs Year 1967 Theta 35 Rho 1.6
Obs 1 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18400N2225B
HIC
 
 
18442+2231 C
 
 
Coord arcsec 2000 184410.47+223014.9 Mag 12 PmRA -10.00 PmDE -7.0
Delta magnitude 1.5 Coordinate calculated yes
CCDM
Ccdm 18442+2231 RComp Comp C Note1
Note2 Discov num COU 209 DRAs DDEs
R dRAs Year 1967 Theta 204 Rho 38.9
Obs 1 Vmag 12.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18400N2225C
HIC