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Current system
19447+4456
DA 13 AB
HD 186816


Nearby doubles
2' : 19446+4455
KOI3891AB

10' : 19442+4448
KOI4523

11' : 19457+4459
KOI5571AB

12' : 19438+4450
KOI 320

13' : 19450+4508
STF2579AB
Fawaris

15' : 19438+4445
KOI3349

15' : 19440+4443
KOI2656

16' : 19461+4458
ES 83

16' : 19439+4443
KOI3946

17' : 19448+4440
KOI4263

21' : 19467+4451
KOI6187

23' : 19440+4434
DEA 167

23' : 19460+4438
KOI4610

23' : 19441+4434
KOI5527AB

24' : 19448+4433
KOI5528

26' : 19470+4502
KOI1821

26' : 19470+4500
DEA 190

26' : 19448+4430
KOI4584

27' : 19423+4451
COU2690

27' : 19454+4430
KOI4299

31' : 19469+4435
KOI7049AB

32' : 19428+4519
DEA 478

32' : 19424+4437
KOI5545

33' : 19477+4451
COU2691

34' : 19455+4423
KOI7028AB

35' : 19469+4430
KOI2992



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.

19447+4456 DA 13 AB (HD 186816)

 
 
19h 44m 44.02s +44° 55' 44.0" P.A. 274.00 sep 2.0 mag 7.42,11.60 Sp K0
 
 
Coord 2000 19447+4456 Discov num DA   13 Comp AB Coord arcsec 2000 19 44 44.02 +44 55 44.0
Date first 1859 Date last 2018 Obs 16
Pa first 266 Pa last 273.8 P.A. Now (θ) 273.8°
Sep first 2.3 Sep last 2.03 Sep. Now (ρ) 2.03"
Mag pri 7.42 Mag sec 11.60 delta mag (ΔM) 4.18 Spectral class K0 (yellow-orange)
Pri motion ra +033 Sec motion ra
Pri motion dec +017 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
19447+4456 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 186816 48791 19 44 44 +44 55 44 DA 13 AB 2018 16 274 2.0 7.42 11.60 4.18 <===
Show 48791 19 44 44 +44 55 44 DA 13 AC 2015 8 288 155.3 7.42 11.98 4.56
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 186816 Constellation Cygnus SAO 48791 Tycho2 3148-00881-1
Gaia DR2 2079759336670805376 HD 186816
 
 
WDS 19447+4456 DA 13 AB (HD 186816) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
DA Dawes, W.R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
19447+4456 DA 13 AB 1946 13 272 1.8 7.42 11.60 K0 +44 3232 194444.02+445544.0
19447+4456 DA 13 AB 2015 14 273 2.0 7.42 11.60 K0 +44 3232 194444.02+445544.0
19447+4456 DA 13 AB 2018 15 274 2.0 7.42 11.60 K0 +44 3232 194444.02+445544.0

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

 
 
WDS 19447+4456 DA 13 AB (HD 186816) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19447+4456 DA 13 AB (HD 186816) : MEASURES
 
 
No records found.

 
 
WDS 19447+4456 (HD 186816) : VIRTUAL EYEPIECE
 
 

19447+4456 DA 13A mag 7.42 Sp K0 19447+4456 DA 13B sep 2.0 P.A. 273.80 mag 11.6 19447+4456 DA 13C sep 155.3 P.A. 288.00 mag 11.98 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 19447+4456 (HD 186816) : ALADIN DSS IMAGE @ 19h 44m 44.02s +44° 55' 44.0"
 
 
 
 
WDS 19447+4456 DA 13 AB (HD 186816) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19447+4456 DA 13AB distance=0' 19446+4455 KOI3891AB distance=2' 19446+4455 KOI3891AC distance=2' 19446+4455 KOI3891AD distance=2' 19446+4455 KOI3891AE distance=2' 19446+4455 KOI3891AF distance=2' 19442+4448 KOI4523 distance=10' 19457+4459 KOI5571AB distance=11' 19457+4459 KOI5571AC distance=11' 19457+4459 KOI5571AD distance=11' 19438+4450 KOI 320 distance=12' 19450+4508 DAL 37DE distance=12' 19450+4508 STF2579AB (Fawaris) distance=13' 19450+4508 STF2579AC (Fawaris) distance=13' 19450+4508 DAL 37AD (Fawaris) distance=13' 19450+4508 DAL 37AF (Fawaris) distance=13' 19450+4508 DAL 37FG distance=14' 19438+4445 KOI3349 distance=15' 19440+4443 KOI2656 distance=15' 19461+4458 ES 83 distance=16' 19439+4443 KOI3946 distance=16' 19448+4440 KOI4263 distance=17' 19467+4451 KOI6187 distance=21' 19440+4434 DEA 167 distance=23' 19460+4438 KOI4610 distance=23' 19441+4434 KOI5527AB distance=23' 19441+4434 KOI5527AC distance=23' 19448+4433 KOI5528 distance=24' 19470+4502 KOI1821 distance=26' 19470+4500 DEA 190 distance=26' 19448+4430 KOI4584 distance=26' 19423+4451 COU2690 distance=27' 19454+4430 KOI4299 distance=27' 19469+4435 KOI7049AB distance=31' 19469+4435 KOI7049AC distance=31' 19428+4519 DEA 478 distance=32' 19424+4437 KOI5545 distance=32' 19477+4451 COU2691 distance=33' 19455+4423 KOI7028AB distance=34' 19455+4423 KOI7028AC distance=34' 19469+4430 KOI2992 distance=35' 19447+4421 KOI5509 distance=36' 19474+4515 SMA 93 distance=36' 19414+4507 KOI3106 distance=38' 19478+4436 DEA 303 distance=39' 19434+4419 ES 1328 distance=39' 19456+4534 KOI 931 distance=40' 19417+4432 KOI 99AB distance=40' 19417+4432 KOI 99AC distance=40' 19464+4420 KOI2507 distance=41' 19467+4421 YSC 136 distance=41' 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 19447+4456 DA 13 AB 274 2.0 0
Show 19447+4456 DA 13 AC 288 155.3 0
Show 19446+4455 KOI3891 AB 242 1.0 2
Show 19446+4455 KOI3891 AC 137 2.0 2
Show 19446+4455 KOI3891 AD 188 1.4 2
Show 19446+4455 KOI3891 AE 98 4.7 2
Show 19446+4455 KOI3891 AF 78 6.1 2
Show 19442+4448 KOI4523 103 4.0 10
Show 19457+4459 KOI5571 AB 52 1.9 11
Show 19457+4459 KOI5571 AC 270 3.0 11
Show 19457+4459 KOI5571 AD 315 3.4 11
Show 19438+4450 KOI 320 208 3.9 12
Show 19450+4508 DAL 37 DE 251 3.5 12
Show Fawaris 19450+4508 STF2579 AB 214 2.8 13
Show Fawaris 19450+4508 STF2579 AC 67 62.5 13
Show Fawaris 19450+4508 DAL 37 AD 246 42.0 13
Show Fawaris 19450+4508 DAL 37 AF 66 147.5 13
Show 19450+4508 DAL 37 FG 312 3.1 14
Show 19438+4445 KOI3349 639 0.3 15
Show 19440+4443 KOI2656 311 3.5 15
Show 19461+4458 ES 83 210 7.2 16
Show 19439+4443 KOI3946 63 4.1 16
Show 19448+4440 KOI4263 156 3.8 17
Show 19467+4451 KOI6187 116 3.6 21
Show 19440+4434 DEA 167 168 8.6 23
Show 19460+4438 KOI4610 137 2.6 23
Show 19441+4434 KOI5527 AB 114 2.4 23
Show 19441+4434 KOI5527 AC 236 2.9 23
Show 19448+4433 KOI5528 62 2.7 24
Show 19470+4502 KOI1821 90 3.8 26
Show 19470+4500 DEA 190 67 8.7 26
Show 19448+4430 KOI4584 221 3.0 26
Show 19423+4451 COU2690 127 0.6 27
Show 19454+4430 KOI4299 264 2.0 27
Show 19469+4435 KOI7049 AB 281 3.3 31
Show 19469+4435 KOI7049 AC 258 3.3 31
Show 19428+4519 DEA 478 286 55.2 32
Show 19424+4437 KOI5545 285 0.1 32
Show 19477+4451 COU2691 211 1.1 33
Show 19455+4423 KOI7028 AB 206 2.9 34
Show 19455+4423 KOI7028 AC 56 3.8 34
Show 19469+4430 KOI2992 238 6.0 35
Show 19447+4421 KOI5509 72 3.1 36
Show 19474+4515 SMA 93 197 10.4 36
Show 19414+4507 KOI3106 189 0.3 38
Show 19478+4436 DEA 303 202 12.3 39
Show 19434+4419 ES 1328 87 2.6 39
Show 19456+4534 KOI 931 177 1.3 40
Show 19417+4432 KOI 99 AB 46 3.6 40
Show 19417+4432 KOI 99 AC 338 6.4 40
Show 19464+4420 KOI2507 275 2.3 41

 
 
WDS 19447+4456 : COMPONENTS
 
 
  A B
B pa=273.8°
sep=2.03"
 
C pa=288.0°
sep=155.32"
pa=288.2°
sep=153.36"
 
 
19447+4456 A
 
 
Coord arcsec 2000 194444.02+445544.0 Mag 7.42 Spectral class K0 (yellow-orange) PmRA 33.00
PmDE 17.0 Tycho2 3148-00881-1 HD 186816
Tycho2
Tycho2 3148-00881-1 Pflag RAmdeg 296.18343880 DEmdeg 44.92891339
PmRA 33.0 PmDE 16.6 E RAmdeg 5 E DEmdeg 5
E pmRA 1.1 E pmDE 1.2 EpRAm 1991.28 EpDEm 1991.36
Num 8 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.3
Q pmDE 1.1 BTmag 8.711 E BTmag 0.017 VTmag 7.425
E VTmag 0.010 Prox 999 TYC T HIP
CCDM RAdeg 296.18332944 DEdeg 44.92887500 EpRA 1990 1.57
EpDE 1990 1.65 E RAdeg 5.0 E DEdeg 4.9 Posflg
Corr 0.0
CCDM
Ccdm 19447+4456 RComp Comp A Note1
Note2 Discov num DRAs 1.90 DDEs -16.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.1 Sp K0 PmNote *
PmRA 23 PmDE 13 Dm number +44 3232 Cat1 BD
Name2 +44 1653 Cat2 AGK2/3 HD 186816 M HD
ADS BDS A12874 M ADS BDS N IDS IDS 19416N4441A
HIC
 
 
19447+4456 B
 
 
Coord arcsec 2000 194443.83+445544.1 Mag 11.6 Delta magnitude 4.18 Coordinate calculated yes
CCDM
Ccdm 19447+4456 RComp Comp B Note1
Note2 Discov num DA 13 DRAs DDEs
R dRAs Year 1859 Theta 269 Rho 2.0
Obs 10 Vmag 12.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12874 M ADS BDS N IDS IDS 19416N4441B
HIC
 
 
19447+4456 C
 
 
Coord arcsec 2000 194430.11+445632.0 Mag 11.98 PmRA 7.00 PmDE 4.0
Tycho2 3148-01095-1 Delta magnitude 4.56 Coordinate calculated yes
Tycho2
Tycho2 3148-01095-1 Pflag RAmdeg 296.12554331 DEmdeg 44.94227139
PmRA 3.8 PmDE -0.5 E RAmdeg 123 E DEmdeg 116
E pmRA 2.5 E pmDE 2.4 EpRAm 1943.35 EpDEm 1940.04
Num 3 Q RAmdeg 1.6 Q DEmdeg 0.1 Q pmRA 1.6
Q pmDE 0.1 BTmag 14.171 E BTmag 0.510 VTmag 11.981
E VTmag 0.183 Prox 850 TYC HIP
CCDM RAdeg 296.12553083 DEdeg 44.94227250 EpRA 1990 1.62
EpDE 1990 1.66 E RAdeg 173.3 E DEdeg 168.0 Posflg
Corr -0.1
CCDM
Ccdm 19447+4456 RComp Comp C Note1
Note2 Discov num DA 13 DRAs DDEs
R dRAs Year 1878 Theta 290 Rho 153.1
Obs 2 Vmag 11.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12874 M ADS BDS N IDS IDS 19416N4441C
HIC