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Current system
08558+6458
ARG 21 AB
AC UMa


Nearby doubles
12' : 08558+6447
TDS6192

28' : 09002+6503
TDS 506

30' : 08524+6520
LDS2296

33' : 08522+6521
DAM1496

42' : 08579+6419
HDS1298

45' : 08554+6414
STI 684

46' : 08488+6501
LDS2293

50' : 08495+6528
UC 1718

52' : 08598+6414
LDS2298

55' : 08527+6408
LDS2297AB

55' : 09042+6446
LDS2301

57' : 09048+6455
MLR 322

64' : 08465+6437
LDS2292

65' : 08460+6445
VBS 42

65' : 08466+6527
STF1257

66' : 08473+6422
MLB 202

67' : 09043+6419
STI 687

72' : 09054+6421
TDS6305

76' : 09077+6459
STF1303

76' : 08450+6430
LDS2291

77' : 08491+6603
TDS6114

81' : 09083+6517
HU 1126

87' : 08568+6332
TDS6209

91' : 09103+6506
LDS2304

95' : 08590+6326
BU 408

96' : 09076+6600
TDS6332



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

08558+6458 ARG 21 AB (AC UMa)

 
 
08h 55m 51.01s +64° 58' 21.6" P.A. 106.00 sep 21.6 mag 10.01,10.45 Sp G0
 
 
Coord 2000 08558+6458 Discov num ARG  21 Comp AB Coord arcsec 2000 08 55 51.01 +64 58 21.6
Date first 1893 Date last 2019 Obs 43
Pa first 120 Pa last 106.1 P.A. Now (θ) 106.1°
Sep first 18.1 Sep last 21.598 Sep. Now (ρ) 21.598"
Mag pri 10.01 Mag sec 10.45 delta mag (ΔM) 0.44 Spectral class G0 (yellow)
Pri motion ra -045 Sec motion ra +005
Pri motion dec -044 Sec motion dec -011
Notes N L W (See Notes, Linear solution, )
rPM=0.952
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name AC UMa Constellation Ursa Major Tycho2 4131-00083-1
 
 
WDS 08558+6458 ARG 21 AB (AC UMa) : NOTES
 
 
discov_num notes refcode
ARG 21 A is an Algol-type system, AC UMa.
 
 
REFERENCES
 
 
refcode metd author reference
Arg1857 - Argelander, F. ...................
Arg1857 Oeltzen Argelander Cat -15 to -31, 1857
Arg1862A - Argelander, F. 1862AN.....59....1A
Arg1862A cited by Auwers (AN 59, 1, 1862)
Arg1864 T - Argelander, F. 1864AN.....62R.253A
Arg1864 AN 62, 253, 1864
Arg1865 T - Argelander, F. 1865AN.....65...61A
Arg1865 AN 65, 61, 1865
Arg1880A - Argelander, F. 1880Obs.....3..569G
Arg1880A cited by Gledhill (Obs. 3, 569, 1880)
Arg1906A T - Argelander, F. (BD) 1906QB821.B972.....
Arg1906A cited in BDS (Burnham Double Star Cat., 1906)
Arg1908A T - Argelander, F. 1908JRASC...2..248E
Arg1908A cited by Espin (JRASC 2, 248, 1908) .
Arg1913A T - Argelander, F. (BD) 1913QB811.B8.......
Arg1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Arg1932A T - Argelander, F. (BD) 1932QB821.A43......
Arg1932A cited in ADS (Aitken Double Star Cat., 1932)
Arg1937A - Argelander, F. 1937AnLei..18....1S
Arg1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08558+6458 ARG 21 AB 2015 37 106 21.4 10.01 10.45 G0 NLW 085551.01+645821.6
08558+6458 ARG 21 AB 2019 43 106 21.6 10.01 10.45 G0 NLW 085551.01+645821.6

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

 
 
WDS 08558+6458 ARG 21 AB (AC UMa) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08558+6458 ARG 21 AB (AC UMa) : MEASURES
 
 
No records found.

 
 
WDS 08558+6458 (AC UMa) : VIRTUAL EYEPIECE
 
 

08558+6458 ARG 21A mag 10.01 Sp G0 08558+6458 ARG 21B sep 10.6 P.A. 124.30 mag 10.45 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 08558+6458 (AC UMa) : ALADIN DSS IMAGE @ 08h 55m 51.01s +64° 58' 21.6"
 
 
 
 
WDS 08558+6458 ARG 21 AB (AC UMa) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08558+6458 ARG 21AB distance=0' 08558+6447 TDS6192 distance=12' 09002+6503 TDS 506 distance=28' 08524+6520 LDS2296 distance=30' 08522+6521 DAM1496 distance=33' 08579+6419 HDS1298 distance=42' 08554+6414 STI 684 distance=45' 08488+6501 LDS2293 distance=46' 08495+6528 UC 1718 distance=50' 08598+6414 LDS2298 distance=52' 08527+6408 LDS2297AB distance=55' 08527+6408 LDS2297Aa,Ab distance=55' 09042+6446 LDS2301 distance=55' 09048+6455 MLR 322 distance=57' 08465+6437 LDS2292 distance=64' 08460+6445 VBS 42 distance=65' 08466+6527 STF1257 distance=65' 08473+6422 MLB 202 distance=66' 09043+6419 STI 687 distance=67' 09054+6421 TDS6305 distance=72' 09077+6459 STF1303 distance=76' 08450+6430 LDS2291 distance=76' 08491+6603 TDS6114 distance=77' 09083+6517 HU 1126 distance=81' 08568+6332 TDS6209 distance=87' 09103+6506 LDS2304 distance=91' 08590+6326 BU 408 distance=95' 09076+6600 TDS6332 distance=96' 08414+6426 LDS2288 distance=98' 09048+6619 MLB 346 distance=99' 09089+6406 LDS2303 distance=100' 09115+6453 SKF2571 distance=100' 09002+6323 MLR 134 distance=101' 08491+6632 MLB 345 distance=102' 08434+6605 TDS 490 distance=102' 09119+6436 CVR 87 distance=106' 08433+6350 LDS2290 distance=107' 09127+6442 MMA 37 distance=109' 08432+6347 LDS1217 distance=110' 09081+6622 MLB1074 distance=113' 08519+6308 KR 32 distance=114' 08438+6626 TDS6063 distance=115' 08492+6312 KR 31 distance=116' 08559+6655 TDS6193 distance=117' 08381+6420 STI 676 distance=121' 09156+6456 LDS1224 distance=125' 08375+6548 DAM1425 distance=126' 09156+6526 LDS2576 distance=127' 08391+6612 LDS2286 distance=128' 08564+6251 LDS1221AB distance=128' 08564+6251 LDS1221Aa,Ab distance=128' 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 08558+6458 ARG 21 AB 106 21.6
Show 08558+6447 TDS6192 257 0.7 12
Show 09002+6503 TDS 506 129 1.1 28
Show 08524+6520 LDS2296 324 3.5 30
Show 08522+6521 DAM1496 313 2.5 33
Show 08579+6419 HDS1298 169 0.1 42
Show 08554+6414 STI 684 215 8.1 45
Show 08488+6501 LDS2293 356 3.0 46
Show 08495+6528 UC 1718 107 9.7 50
Show 08598+6414 LDS2298 83 52.0 52
Show 08527+6408 LDS2297 AB 303 47.1 55
Show 08527+6408 LDS2297 Aa,Ab 76 1.1 55
Show 09042+6446 LDS2301 82 143.2 55
Show 09048+6455 MLR 322 156 1.1 57
Show 08465+6437 LDS2292 135 3.4 64
Show 08460+6445 VBS 42 206 24.8 65
Show 08466+6527 STF1257 145 27.6 65
Show 08473+6422 MLB 202 132 6.4 66
Show 09043+6419 STI 687 228 7.8 67
Show 09054+6421 TDS6305 215 0.6 72
Show 09077+6459 STF1303 282 2.8 76
Show 08450+6430 LDS2291 86 33.3 76
Show 08491+6603 TDS6114 29 0.5 77
Show 09083+6517 HU 1126 36 3.9 81
Show 08568+6332 TDS6209 101 1.7 87
Show 09103+6506 LDS2304 129 4.7 91
Show 08590+6326 BU 408 345 2.8 95
Show 09076+6600 TDS6332 175 1.2 96
Show 08414+6426 LDS2288 185 155.7 98
Show 09048+6619 MLB 346 301 3.0 99
Show 09089+6406 LDS2303 122 126.1 100
Show 09115+6453 SKF2571 346 9.9 100
Show 09002+6323 MLR 134 241 0.3 101
Show 08491+6632 MLB 345 266 4.5 102
Show 08434+6605 TDS 490 143 1.4 102
Show 09119+6436 CVR 87 304 106.0 106
Show 08433+6350 LDS2290 235 7.3 107
Show 09127+6442 MMA 37 155 13.5 109
Show 08432+6347 LDS1217 259 212.9 110
Show 09081+6622 MLB1074 329 9.6 113
Show 08519+6308 KR 32 15 4.9 114
Show 08438+6626 TDS6063 170 0.5 115
Show 08492+6312 KR 31 277 7.2 116
Show 08559+6655 TDS6193 261 0.4 117
Show 08381+6420 STI 676 1 9.4 121
Show 09156+6456 LDS1224 309 6.0 125
Show 08375+6548 DAM1425 332 4.1 126
Show 09156+6526 LDS2576 314 9.6 127
Show 08391+6612 LDS2286 295 84.4 128
Show 08564+6251 LDS1221 AB 66 36.3 128
Show 08564+6251 LDS1221 Aa,Ab 12 1.3 128

 
 
WDS 08558+6458 : COMPONENTS
 
 
  A
B pa=124.3°
sep=10.63"
 
 
08558+6458 A
 
 
Var name AC UMa Coord arcsec 2000 085551.01+645821.6 Mag 10.01 Spectral class G0 (yellow)
PmRA -45.00 PmDE -44.0 Tycho2 4131-00083-1 DM BD+65 671
Tycho2
Tycho2 4131-00083-1 Pflag RAmdeg 133.96252926 DEmdeg 64.97266170
PmRA -42.5 PmDE -41.9 E RAmdeg 13 E DEmdeg 12
E pmRA 1.4 E pmDE 1.4 EpRAm 1989.88 EpDEm 1990.68
Num 8 Q RAmdeg 0.9 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.9 BTmag 10.531 E BTmag 0.024 VTmag 10.009
E VTmag 0.020 Prox 206 TYC T HIP
CCDM RAdeg 133.96277056 DEdeg 64.97276000 EpRA 1990 1.51
EpDE 1990 1.67 E RAdeg 13.7 E DEdeg 11.6 Posflg
Corr -0.4
 
 
08558+6458 B
 
 
Coord arcsec 2000 085552.39+645815.6 Mag 10.45 PmRA 5.00 PmDE -11.0
Tycho2 4131-00281-1 Calc delta mag 0.44 Calc coord yes
Tycho2
Tycho2 4131-00281-1 Pflag RAmdeg 133.97553847 DEmdeg 64.97082739
PmRA 7.9 PmDE -13.0 E RAmdeg 15 E DEmdeg 13
E pmRA 1.4 E pmDE 1.5 EpRAm 1989.57 EpDEm 1990.21
Num 7 Q RAmdeg 1.3 Q DEmdeg 1.5 Q pmRA 1.4
Q pmDE 1.4 BTmag 10.563 E BTmag 0.025 VTmag 10.450
E VTmag 0.027 Prox 206 TYC T HIP
CCDM RAdeg 133.97550167 DEdeg 64.97086000 EpRA 1990 1.51
EpDE 1990 1.66 E RAdeg 15.8 E DEdeg 13.5 Posflg
Corr -0.4