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Current system
21312+8652
STF 2858
HD 207929


Nearby doubles
9' : 21285+8700
HDS3057

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TDT3127

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TDT3110

60' : 21452+8554
A 775

79' : 21428+8535
UC 4536

91' : 21433+8523
MLR 252

113' : 21152+8501
LOC 483

114' : 21357+8459
LOC 492

137' : 21211+8436
MLR 248

154' : 21446+8420
LDS1960

156' : 21235+8417
SKF 397AB

160' : 21210+8413
MLR 247

196' : 21236+8337
LOC 491

216' : 21239+8317
HDS3049

217' : 21322+8316
TDT3014

233' : 21354+8300
LDS1956

238' : 21370+8255
STF2837

262' : 21176+8231
STF2807

283' : 21170+8210
LOC 482

284' : 21164+8210
LDS1949

286' : 21440+8208
MLR 251



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

21312+8652 STF 2858 (HD 207929)

 
 
21h 31m 09.14s +86° 52' 19.2" P.A. 157.00 sep 14.4 mag 9.36,9.59 Sp K0+K0
 
 
Coord 2000 21312+8652 Discov num STF2858 Comp Coord arcsec 2000 21 31 09.14 +86 52 19.2
Date first 1831 Date last 2015 Obs 41
Pa first 165 Pa last 157.4 P.A. Now (θ) 157.4°
Sep first 15.0 Sep last 14.444 Sep. Now (ρ) 14.444"
Mag pri 9.36 Mag sec 9.59 delta mag (ΔM) 0.23 Spectral class K0+K0 (yellow-orange/yellow-orange)
Pri motion ra +135 Sec motion ra +134
Pri motion dec +087 Sec motion dec +089
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.014 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 207929 Constellation Ursa Minor SAO 3607 Tycho2 4657-01040-1
Gaia DR2 2304461958186015488 HD 207929 GC 30385
 
 
WDS 21312+8652 STF 2858 (HD 207929) : NOTES
 
 
discov_num notes refcode
STF2858 LDS1957.
HJL 297. HJL1986
 
 
REFERENCES
 
 
refcode metd author reference
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21312+8652 STF2858 2000 26 158 14.6 9.36 9.59 K0 K0 N DV 213109.14+865219.2
21312+8652 STF2858 2010 27 158 14.5 9.36 9.59 K0 K0 NVD 213109.14+865219.2
21312+8652 STF2858 2015 37 157 14.4 9.36 9.59 K0+K0 NV 213109.14+865219.2

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

 
 
WDS 21312+8652 STF 2858 (HD 207929) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21312+8652 STF 2858 (HD 207929) : MEASURES
 
 
No records found.

 
 
WDS 21312+8652 (HD 207929) : VIRTUAL EYEPIECE
 
 

21312+8652 STF2858A mag 9.36 Sp K0 21312+8652 STF2858B sep 13.3 P.A. 178.70 mag 9.59 Sp K0 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 21312+8652 (HD 207929) : ALADIN DSS IMAGE @ 21h 31m 09.14s +86° 52' 19.2"
 
 
 
 
WDS 21312+8652 STF 2858 (HD 207929) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21312+8652 STF2858 distance=0' 21285+8700 HDS3057 distance=9' 21443+8559 TDT3127 distance=55' 21415+8555 TDT3110 distance=59' 21452+8554 A 775 distance=60' 21428+8535 UC 4536 distance=79' 21433+8523 MLR 252 distance=91' 21152+8501 LOC 483 distance=113' 21357+8459 LOC 492 distance=114' 21211+8436 MLR 248 distance=137' 21446+8420 LDS1960 distance=154' 21235+8417 SKF 397AB distance=156' 21210+8413 MLR 247 distance=160' 21236+8337 LOC 491 distance=196' 21239+8317 HDS3049 distance=216' 21322+8316 TDT3014 distance=217' 21354+8300 LDS1956 distance=233' 21370+8255 STF2837 distance=238' 21176+8231 STF2807 distance=262' 21170+8210 LOC 482 distance=283' 21164+8210 LDS1949 distance=284' 21440+8208 MLR 251 distance=286' 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 21312+8652 STF2858 157 14.4
Show 21285+8700 HDS3057 278 0.4 9
Show 21443+8559 TDT3127 117 0.5 55
Show 21415+8555 TDT3110 67 2.6 59
Show 21452+8554 A 775 205 2.8 60
Show 21428+8535 UC 4536 33 27.2 79
Show 21433+8523 MLR 252 66 2.6 91
Show 21152+8501 LOC 483 274 36.1 113
Show 21357+8459 LOC 492 314 1.9 114
Show 21211+8436 MLR 248 107 0.5 137
Show 21446+8420 LDS1960 358 84.4 154
Show 21235+8417 SKF 397 AB 200 3.7 156
Show 21210+8413 MLR 247 301 2.1 160
Show 21236+8337 LOC 491 64 1.1 196
Show 21239+8317 HDS3049 339 0.3 216
Show 21322+8316 TDT3014 217 1.6 217
Show 21354+8300 LDS1956 351 62.2 233
Show 21370+8255 STF2837 269 3.2 238
Show 21176+8231 STF2807 310 1.8 262
Show 21170+8210 LOC 482 75 1.7 283
Show 21164+8210 LDS1949 106 15.4 284
Show 21440+8208 MLR 251 43 1.6 286

 
 
WDS 21312+8652 : COMPONENTS
 
 
  A
B pa=178.7°
sep=13.34"
 
 
21312+8652 A
 
 
Componente originario normalizzato AB Name HD 207929 Coord arcsec 2000 213109.14+865219.2 Mag 9.36
Spectral class K0 (yellow-orange) PmRA 135.00 PmDE 87.0 SAO 3607
Tycho2 4657-01040-1 HD 207929 GC 30385 DM BD+86 325
Tycho2
Tycho2 4657-01040-1 Pflag RAmdeg 322.78809645 DEmdeg 86.87200540
PmRA 135.4 PmDE 86.6 E RAmdeg 12 E DEmdeg 13
E pmRA 1.0 E pmDE 1.1 EpRAm 1989.65 EpDEm 1989.55
Num 11 Q RAmdeg 0.9 Q DEmdeg 1.2 Q pmRA 1.0
Q pmDE 1.2 BTmag 10.224 E BTmag 0.027 VTmag 9.355
E VTmag 0.018 Prox 145 TYC T HIP
CCDM RAdeg 322.78242556 DEdeg 86.87180444 EpRA 1990 1.78
EpDE 1990 1.65 E RAdeg 11.8 E DEdeg 13.3 Posflg
Corr -0.2
SAO
SAO 3607 DelFlag RA1950 PmRA1950 0.1647
DE1950 PmDE1950 0.086 Vmag 8.5 SpType K0
Double code Source 70 CatNum 30385 DM BD+86 325
DMcomp A BDsup HD 207929 M HD 1
GC 30385 RA1950rad 5.67251213 DE1950rad 1.51225764 PmRA2000 0.1706
PmDE2000 0.088
CCDM
Ccdm 21312+8652 RComp Comp A Note1
Note2 Discov num DRAs -1.82 DDEs 19.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.2 Sp K0 PmNote *
PmRA 155 PmDE 97 Dm number +86 325 Cat1 BD
Name2 +86 295 Cat2 AGK2/3 HD 207929 M HD
ADS BDS A15228 M ADS BDS N IDS IDS 21476N8625A
HIC
 
 
21312+8652 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 213109.51+865205.9 Mag 9.59 Spectral class K0 (yellow-orange)
PmRA 134.00 PmDE 89.0 Calc delta mag 0.23 Calc coord yes
CCDM
Ccdm 21312+8652 RComp Comp B Note1
Note2 Discov num STF2858 DRAs 2.90 DDEs 6.7
R dRAs 10 Year 1832 Theta 164 Rho 14.8
Obs 5 Vmag 9.3 Sp PmNote *
PmRA 129 PmDE 100 Dm number Cat1
Name2 +86 296 Cat2 AGK2/3 HD M HD
ADS BDS A15228 M ADS BDS N IDS IDS 21476N8625B
HIC