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Doubles in session


Current system
21285+8700
HDS 3057
HD 207779


Nearby doubles
9' : 21312+8652
STF2858

63' : 21443+8559
TDT3127

67' : 21415+8555
TDT3110

68' : 21452+8554
A 775

87' : 21428+8535
UC 4536

99' : 21433+8523
MLR 252

120' : 21152+8501
LOC 483

122' : 21357+8459
LOC 492

145' : 21211+8436
MLR 248

162' : 21446+8420
LDS1960

164' : 21235+8417
SKF 397AB

167' : 21210+8413
MLR 247

186' : 21105+8356
LOC 481

204' : 21236+8337
LOC 491

224' : 21239+8317
HDS3049

225' : 21322+8316
TDT3014

241' : 21354+8300
LDS1956

246' : 21370+8255
STF2837

270' : 21176+8231
STF2807

291' : 21170+8210
LOC 482

292' : 21164+8210
LDS1949

294' : 21440+8208
MLR 251



Selections
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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.

21285+8700 HDS 3057 (HD 207779)

 
 
21h 28m 32.54s +87° 00' 06.2" P.A. 278.00 sep 0.4 mag 8.51,11.96 Sp A2 dist. 294.99 pc (962.26 l.y.)
 
 
Coord 2000 21285+8700 Discov num HDS3057 Comp Coord arcsec 2000 21 28 32.54 +87 00 06.2
Date first 1991 Date last 1991 Obs 1
Pa first 278 Pa last 278 P.A. Now (θ) 278°
Sep first 0.4 Sep last 0.415 Sep. Now (ρ) 0.415"
Mag pri 8.51 Mag sec 11.96 delta mag (ΔM) 3.45 Spectral class A2 (white)
Pri motion ra +014 Sec motion ra
Pri motion dec +017 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 207779 Constellation Ursa Minor SAO 3601 HIP 106030
Tycho2 4657-00215-1 Gaia DR2 2304516276636844800 HD 207779 BD BD+86 324
Distance 294.99 Distance ly 962.26
 
 
WDS 21285+8700 HDS 3057 (HD 207779) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21285+8700 HDS3057 1991 1 278 0.4 8.51 11.96 A2 D 212832.54+870006.2

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

 
 
WDS 21285+8700 HDS 3057 (HD 207779) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21285+8700 HDS 3057 (HD 207779) : MEASURES
 
 
No records found.

 
 
WDS 21285+8700 (HD 207779) : VIRTUAL EYEPIECE
 
 

21285+8700 HDS3057A mag 8.51 Sp A2 21285+8700 HDS3057B sep 0.1 P.A. 339.60 mag 11.96 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 21285+8700 (HD 207779) : ALADIN DSS IMAGE @ 21h 28m 32.54s +87° 00' 06.2"
 
 
 
 
WDS 21285+8700 HDS 3057 (HD 207779) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21285+8700 HDS3057 distance=0' 21312+8652 STF2858 distance=9' 21443+8559 TDT3127 distance=63' 21415+8555 TDT3110 distance=67' 21452+8554 A 775 distance=68' 21428+8535 UC 4536 distance=87' 21433+8523 MLR 252 distance=99' 21152+8501 LOC 483 distance=120' 21357+8459 LOC 492 distance=122' 21211+8436 MLR 248 distance=145' 21446+8420 LDS1960 distance=162' 21235+8417 SKF 397AB distance=164' 21210+8413 MLR 247 distance=167' 21105+8356 LOC 481 distance=186' 21236+8337 LOC 491 distance=204' 21239+8317 HDS3049 distance=224' 21322+8316 TDT3014 distance=225' 21354+8300 LDS1956 distance=241' 21370+8255 STF2837 distance=246' 21176+8231 STF2807 distance=270' 21170+8210 LOC 482 distance=291' 21164+8210 LDS1949 distance=292' 21440+8208 MLR 251 distance=294' 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 21285+8700 HDS3057 278 0.4
Show 21312+8652 STF2858 157 14.4 9
Show 21443+8559 TDT3127 117 0.5 63
Show 21415+8555 TDT3110 67 2.6 67
Show 21452+8554 A 775 205 2.8 68
Show 21428+8535 UC 4536 33 27.2 87
Show 21433+8523 MLR 252 66 2.6 99
Show 21152+8501 LOC 483 274 36.1 120
Show 21357+8459 LOC 492 314 1.9 122
Show 21211+8436 MLR 248 107 0.5 145
Show 21446+8420 LDS1960 358 84.4 162
Show 21235+8417 SKF 397 AB 200 3.7 164
Show 21210+8413 MLR 247 301 2.1 167
Show 21105+8356 LOC 481 15 21.0 186
Show 21236+8337 LOC 491 64 1.1 204
Show 21239+8317 HDS3049 339 0.3 224
Show 21322+8316 TDT3014 217 1.6 225
Show 21354+8300 LDS1956 351 62.2 241
Show 21370+8255 STF2837 269 3.2 246
Show 21176+8231 STF2807 310 1.8 270
Show 21170+8210 LOC 482 75 1.7 291
Show 21164+8210 LDS1949 106 15.4 292
Show 21440+8208 MLR 251 43 1.6 294

 
 
WDS 21285+8700 : COMPONENTS
 
 
  A
B pa=339.6°
sep=0.06"
 
 
21285+8700 A
 
 
Componente originario normalizzato AB Name HD 207779 Coord arcsec 2000 212832.54+870006.2 Mag 8.51
Spectral class A2 (white) PmRA 14.00 PmDE 17.0 SAO 3601
HIP 106030 Tycho2 4657-00215-1 HD 207779 BD BD+86 324
Tycho2
Tycho2 4657-00215-1 Pflag RAmdeg 322.13607111 DEmdeg 87.00177327
PmRA 13.0 PmDE 15.6 E RAmdeg 6 E DEmdeg 6
E pmRA 1.0 E pmDE 1.1 EpRAm 1990.98 EpDEm 1991.06
Num 13 Q RAmdeg 1.3 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.2 BTmag 8.675 E BTmag 0.016 VTmag 8.422
E VTmag 0.012 Prox 999 TYC T HIP 106030
CCDM AB RAdeg 322.13550167 DEdeg 87.00173722 EpRA 1990 1.72
EpDE 1990 1.64 E RAdeg 5.5 E DEdeg 5.9 Posflg P
Corr -0.2
SAO
SAO 3601 DelFlag RA1950 PmRA1950 0.0198
DE1950 PmDE1950 0.02 Vmag 8.2 SpType A2
Double code Source 36 CatNum 922 DM BD+86 324
DMcomp BDsup HD 207779 M HD 0
GC RA1950rad 5.66448006 DE1950rad 1.51456569 PmRA2000 0.0194
PmDE2000 0.016
Hipparcos
Catalog H HIP 106030 Proxy H RAhms 21 28 32.54
DEdms +87 00 06.2 Vmag 8.4 VarFlag R Vmag H
RAdeg 322.136 DEdeg 87.0017 AstroRef A Plx 3.66
CCDM 21285+8700 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 277 Rho 0.415 HD 207779 BD BD+86 324
CD CP Dm number +86 324 VIred 0.06
SpType A2 R SpType Coord arcsec 2000 212832.54+870006.2
Hipparcos 2
HIP 106030 Sn 15 So 3 Nc 2
RArad 5.622326628 DErad 1.5184667293 Plx 3.39 PmRA 14.33
PmDE 16.72 E RArad 0.57 E DErad 0.59 E Plx 0.67
E pmRA 0.64 E pmDE 0.61 Hpmag 8.4678 E Hpmag 0.0019
SHp 0.018 VA 0 BV 0.244 E BV 0.014
VI 0.27
CCDM
Ccdm 21285+8700 RComp Comp A Note1
Note2 Discov num DRAs 2.70 DDEs 6.4
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.5 Sp A2 PmNote *
PmRA 14 PmDE 17 Dm number +86 324 Cat1 BD
Name2 +86 293 Cat2 AGK2/3 HD 207779 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 106030
 
 
21285+8700 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212832.51+870006.3 Mag 11.96 Calc delta mag 3.45
Calc coord yes
CCDM
Ccdm 21285+8700 RComp Comp B Note1
Note2 Discov num HDS DRAs 2.16 DDEs 6.4
R dRAs 82 Year 1991 Theta 277 Rho 0.4
Obs 1 Vmag 12.0 Sp PmNote *
PmRA 14 PmDE 17 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 106030