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Current system
20423+4549
WAL 132 AC


Nearby doubles
18' : 20421+4532
BKO 157

18' : 20420+4532
BRT2271

27' : 20438+4610
TDT2503

30' : 20427+4521
ES 1270

33' : 20440+4521
KPP3361

34' : 20437+4619
HO 140

34' : 20414+4517
H N 73
Deneb

37' : 20394+4530
TDS1087

38' : 20427+4627
TDS1092

38' : 20436+4514
CBL 85

43' : 20464+4551
CVR 230

47' : 20456+4621
HDS2955

49' : 20431+4637
BRT2273

51' : 20434+4501
ES 668AB

53' : 20432+4458
BKO 159

55' : 20433+4456
ES 2699

55' : 20388+4629
BRT2268

55' : 20473+4535
HO 280

62' : 20466+4632
KUI 101

64' : 20437+4651
TDS1096

67' : 20360+4555
STJ 103

68' : 20376+4504
HJ 1555

69' : 20485+4519
LDS2456

70' : 20461+4452
ES 30

70' : 20489+4537
HDS2965

71' : 20489+4607
HJ 1581



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

20423+4549 WAL 132 AC

 
 
20h 42m 20.31s +45° 49' 24.5" P.A. 357.00 sep 71.2 mag 7.66,10.23 Sp G2V dist. 54.14 pc (176.6 l.y.)
 
 
Coord 2000 20423+4549 Discov num WAL 132 Comp AC Coord arcsec 2000 20 42 20.31 +45 49 24.5
Date first 1892 Date last 2015 Obs 16
Pa first 349 Pa last 357.3 P.A. Now (θ) 357.3°
Sep first 49.0 Sep last 71.241 Sep. Now (ρ) 71.241"
Mag pri 7.66 Mag sec 10.23 delta mag (ΔM) 2.57 Spectral class G2V (yellow)
Pri motion ra -056 Sec motion ra -004
Pri motion dec -189 Sec motion dec +001
Notes N W (See Notes, )
rPM=0.999
This double is not physical.
 
 
20423+4549 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 197488 49960 20 42 20 +45 49 24 STT 411 AB 2015 50 349 31.8 7.66 10.58 2.92
Show 49960 20 42 20 +45 49 24 WAL 132 AC 2015 16 357 71.2 7.66 10.23 2.57 <===
Show 49960 20 42 20 +45 49 24 BKO 158 AF 2015 11 143 41.0 7.66 12.20 4.54
Show 20 42 20 +45 49 53 WAL 132 BC 2015 15 4 40.1 10.58 10.23 0.35
Show 20 42 20 +45 49 53 CTT 15 BD 2015 13 178 86.6 10.58 10.60 0.02
Show 20 42 20 +45 49 53 CTT 15 BE 2015 12 141 87.9 10.58 10.55 0.03
Show 20 42 25 +45 48 44 BKO 158 EF 2015 9 281 24.9 10.55 12.20 1.65
Show 20 42 25 +45 48 44 BKO 158 EG 2015 7 221 28.7 10.55 14.00 3.45
Show 20 42 25 +45 48 44 BKO 158 EH 2015 7 340 51.6 10.55 12.60 2.05
Show 20 42 25 +45 48 44 BKO 158 EI 2014 6 236 39.6 10.55 13.60 3.05
Ninefold system
9 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 49960 HIP 102189 Tycho2 3574-02567-1
Gaia DR2 2070448844010046592 HD 197488 BD BD+45 3245 Distance 54.14
Distance ly 176.6