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Current system
18443+3940
SHJ 277 CD,G


Nearby doubles
16' : 18457+3942
BU 51AB

21' : 18426+3937
HJ 1341

23' : 18433+3918
BLL 35

25' : 18452+3914
STF2392AB

31' : 18453+4005
ROE 50AB

32' : 18465+3958
LDS4799

38' : 18418+4001
LSC 83

43' : 18453+3856
COU1608

44' : 18478+3954
GRV 240

44' : 18436+4020
SLE 122

44' : 18481+3929
COU1609

50' : 18483+3956
SLW1221

52' : 18466+3853
ES 2021AB

58' : 18480+3858
ES 2572

58' : 18397+3955
TDT 981

59' : 18490+3914
COU1610

62' : 18483+4018
UC 3676

69' : 18404+4028
SLE 92

70' : 18466+4042
HDS2663

72' : 18501+4002
HU 1192

73' : 18381+3935
BU 50AB

74' : 18496+4020
UC 3687

75' : 18507+3920
HDS2672

76' : 18450+4051
COU1792

76' : 18432+3822
HDS2651

79' : 18452+3819
STF2393AB



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

18443+3940 SHJ 277 CD,G

 
 
18h 44m 22.78s +39° 36' 45.8" P.A. 293.00 sep 75.1 mag 4.56,14.20 Sp A6Vn+A7Vn dist. 47.69 pc (155.56 l.y.)
 
 
Coord 2000 18443+3940 Discov num SHJ 277 Comp CD,G Coord arcsec 2000 18 44 22.78 +39 36 45.8
Date first 2000 Date last 2015 Obs 4
Pa first 294 Pa last 292.9 P.A. Now (θ) 292.9°
Sep first 76.3 Sep last 75.059 Sep. Now (ρ) 75.059"
Mag pri 4.56 Mag sec 14.20 delta mag (ΔM) 9.64 Spectral class A6Vn+A7Vn (white/white)
Pri motion ra +008 Sec motion ra -028
Pri motion dec +054 Sec motion dec -088
Notes N (See Notes)
rPM=1.586
This double is not physical.
 
 
18443+3940 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 67310 18 44 20 +39 40 12 STF 2382 AB 2021 641 345 2.2 5.15 6.10 0.95 Y
Show Double Double 67310 18 44 20 +39 40 12 STFA 37 AB,CD 2021 98 172 209.4 4.67 4.56 0.11
Show 67310 18 44 20 +39 40 12 STFA 37 AD 2021 19 172 208.2 5.15 5.38 0.23
Show 67310 18 44 20 +39 40 12 STFA 37 AI 2021 24 137 150.4 5.15 10.12 4.97
Show 67315 18 44 20 +39 40 14 STFA 37 BC 2011 14 172 210.9 6.10 5.25 0.85
Show 67315 18 44 20 +39 40 14 STFA 37 BD 2021 12 171 212.5 6.10 5.38 0.72
Show 18 44 20 +39 40 14 STFA 37 BI 2015 10 137 151.3 6.10 10.12 4.02
Show 67315 18 44 23 +39 36 46 CHR 77 Ca,Cb 2005 5 225 0.1 5.25 Y
Show 67315 18 44 23 +39 36 46 STF 2383 CD 2021 641 75 2.3 5.25 5.38 0.13 Y
Show 67315 18 44 23 +39 36 46 SHJ 277 CD,F 2015 3 0 93.3 4.56 12.70 8.14
Show 67315 18 44 23 +39 36 46 SHJ 277 CD,G 2015 4 293 75.1 4.56 14.20 9.64 <===
Show 67315 18 44 23 +39 36 46 SHJ 277 CD,H 2015 4 313 95.7 4.56 13.90 9.34
Show 67310 18 44 23 +39 36 46 STF 2383 CE 2015 8 334 63.2 5.25 12.30 7.05
Show 18 44 23 +39 36 46 STFA 37 CI 2012 18 37 120.4 5.25 10.12 4.87
Show 67315 18 44 23 +39 36 46 STFA 37 DI 2000 6 37 121.6 5.38 10.12 4.74
Show 67310 18 44 20 +39 37 43 SHJ 277 EF 2021 16 37 45.4 12.30 12.70 0.40
Show 67310 18 44 20 +39 37 43 SHJ 277 EG 2015 11 236 50.0 12.30 14.20 1.90
Show 18 44 20 +39 37 43 STFA 37 EI 2015 7 68 108.9 12.30 10.12 2.18
Show 18 44 17 +39 37 16 SHJ 277 GH 2015 13 358 35.8 14.20 13.90 0.30
11-fold system
11 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV11301 Lyr Constellation Lyra SAO 67315 HIP 91926
Tycho2 3122-03439-1 Gaia DR2 2098202128093842432 HD 173608 HR 7054
GC 25668 ADS 11635 BD BD+39 3510 Bayer Epsilon 2 Lyrae
Bayer name Eps2 Lyr Distance 47.69 Distance ly 155.56 Bayer greek ε2 Lyr