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Doubles in session


Current system
22159+5440
BU 377 AB
V447 Lac


Nearby doubles
7' : 22154+5446
STI2666

8' : 22167+5438
TDS1166

10' : 22160+5450
SKF2555

12' : 22170+5434
TDT3444

14' : 22152+5429
TDT3422

14' : 22164+5454
STI2675

16' : 22177+5444
STI2681

18' : 22151+5457
STI2662

19' : 22161+5453
STI2673

19' : 22178+5431
STI2682

20' : 22141+5452
TDT3418

21' : 22178+5452
STI2685

22' : 22134+5442
STI2648

25' : 22186+5434
MLR 612

27' : 22130+5450
STI2644

28' : 22157+5507
STI2667

28' : 22190+5449
TDT3458

32' : 22191+5455
STI2693

33' : 22144+5510
STI2656

34' : 22197+5444
STI2701

34' : 22123+5451
STI2638

36' : 22197+5427
STI2700

36' : 22170+5515
STI2677

36' : 22126+5502
STI2639

37' : 22187+5507
STI2690

37' : 22201+5436
STI2705



Selections
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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.

22159+5440 BU 377 AB (V447 Lac)

 
 
22h 15m 54.13s +54° 40' 22.4" P.A. 58.00 sep 32.4 mag 7.52,10.37 Sp K1V dist. 21.54 pc (70.26 l.y.)
 
 
Coord 2000 22159+5440 Discov num BU  377 Comp AB Coord arcsec 2000 22 15 54.13 +54 40 22.4
Date first 1875 Date last 2012 Obs 20
Pa first 65 Pa last 57.7 P.A. Now (θ) 57.7°
Sep first 60.0 Sep last 32.43 Sep. Now (ρ) 32.43"
Mag pri 7.52 Mag sec 10.37 delta mag (ΔM) 2.85 Spectral class K1V (yellow-orange)
Pri motion ra +214 Sec motion ra -005
Pri motion dec +070 Sec motion dec -006
Notes N L U (See Notes, Linear solution, Proper motion indicates non-physical)
rPM=1.03
This double is not physical.
 
 
22159+5440 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show V447 Lac 34243 22 15 54 +54 40 22 BU 377 AB 2012 20 58 32.4 7.52 10.37 2.85 <===
Show 34243 22 15 54 +54 40 22 BU 377 AC 2012 8 46 30.3 7.52 11.40 3.88
Show 34243 22 15 54 +54 40 22 BU 377 AD 2006 6 158 22.2 7.52 12.80 5.28
Show 34243 22 15 54 +54 40 22 BU 377 AQ 2012 5 258 59.8 7.52 14.06 6.54
Show 34243 22 15 54 +54 40 22 BU 377 AR 2003 3 257 63.4 7.52 13.80 6.28
Show 34243 22 15 54 +54 40 22 BU 377 AS 2015 6 334 55.5 7.52 12.62 5.10
Show 34243 22 15 54 +54 40 22 GIC 177 AT 2016 7 107 76.9 7.49 14.03 6.54
Show 34243 22 15 54 +54 40 22 HLA 31 AU 2016 1 248 8.9 5.90
Show 34243 22 15 54 +54 40 22 HLA 31 AV 2016 1 104 9.5 5.90
Show 22 15 58 +54 40 41 BU 377 BC 2015 18 303 6.7 10.37 11.40 1.03
Show 22 15 48 +54 40 12 BU 377 QR 2015 7 233 6.8 12.80 13.80 1.00
Decuple system
10 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V447 Lac Constellation Lacerta SAO 34243 HIP 109926
Tycho2 3986-02960-1 Gaia DR2 2005798350576886144 HD 211472 GC 31149
GL NN 4268A BD BD+53 2831 Distance 21.54 Distance ly 70.26