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Doubles in session


Current system
18581+3813
STF 2427 BC


Nearby doubles
4' : 18581+3817
MLB 858AB

7' : 18585+3819
UC 3743

8' : 18588+3812
ALI 876

25' : 18562+3803
UC 3731

34' : 18572+3845
COU1611

34' : 19000+3838
ALI 877

38' : 19012+3813
DEA 433

39' : 18578+3852
ES 2573

43' : 18569+3854
MLB 856

45' : 18585+3858
KOI6360

48' : 19020+3801
ES 2033

50' : 19021+3827
DEA 282

51' : 19023+3824
KOI 377AB

51' : 19023+3802
KOI4702

52' : 19002+3859
RAP 1

53' : 19011+3735
TDT1181

54' : 18536+3814
UC 3713

55' : 19027+3816
DEA 446AB

56' : 19011+3731
GII 23

56' : 19026+3758
KOI 299

56' : 19011+3857
KOI 806

57' : 18541+3743
TOI1191

58' : 18536+3752
ES 2027

59' : 19029+3830
KOI 268AB

60' : 18563+3909
MLB 855

60' : 18583+3913
KOI1339AB



Selections
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Binocular doubles
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.

18581+3813 STF 2427 BC

 
 
18h 58m 08.22s +38° 13' 47.6" P.A. 79.00 sep 7.2 mag 9.93,10.20 Sp K0
 
 
Coord 2000 18581+3813 Discov num STF2427 Comp BC Coord arcsec 2000 18 58 08.22 +38 13 47.6
Date first 1828 Date last 2017 Obs 49
Pa first 86 Pa last 78.9 P.A. Now (θ) 78.9°
Sep first 4.0 Sep last 7.19 Sep. Now (ρ) 7.19"
Mag pri 9.93 Mag sec 10.20 delta mag (ΔM) 0.27 Spectral class K0 (yellow-orange)
Pri motion ra +043 Sec motion ra +040
Pri motion dec +034 Sec motion dec +031
Notes N T (See Notes, Parallax indicates physical)
rPM=0.077 (< 0.3, Physical double)
This double is physical.
 
 
18581+3813 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 58 04 +38 13 20 STF 2427 AB 2017 45 59 55.9 9.61 9.93 0.32
Show 18 58 04 +38 13 20 STF 2427 AC 2015 23 61 62.0 9.61 10.20 0.59
Show 18 58 04 +38 13 20 CTT 11 AD 2017 14 291 57.2 9.61 11.80 2.19
Show 67642 18 58 04 +38 13 20 SP 2 AE 2017 20 350 162.3 9.61 5.87 3.74
Show 18 58 08 +38 13 48 STF 2427 BC 2017 49 79 7.2 9.93 10.20 0.27 <===
Show 67642 18 58 08 +38 13 48 SP 2 BE 2014 15 330 150.2 9.93 5.87 4.06
Show 67642 18 58 02 +38 15 58 SMR 14 EF 2014 10 331 82.7 5.87 11.26 5.39
Show 67642 18 58 02 +38 15 58 FYM 27 EG 2014 4 206 33.2 5.87 14.60 8.73
Show 67642 18 58 02 +38 15 58 FYM 27 EH 2014 4 222 72.8 5.87 13.70 7.83
Show 67642 18 58 02 +38 15 58 FYM 27 EI 2014 4 38 44.7 5.87 16.00 10.13
Ninefold system
9 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Tycho2 3119-02542-1 Gaia DR2 2100103978272525440