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Doubles in session


Current system
20046+3641
A 1413
HD 227487


Nearby doubles
2' : 20046+3639
SEI 840

4' : 20049+3641
SEI 842

13' : 20035+3639
TDT1940

19' : 20037+3626
SEI 830

21' : 20063+3642
SEI 875

27' : 20042+3707
ALI 403

27' : 20050+3707
COU2212

28' : 20046+3614
SEI 839

28' : 20030+3701
COU2211

30' : 20068+3628
KPP 804

32' : 20023+3625
COU2210

32' : 20070+3651
SEI 889

33' : 20057+3711
SEI 850

34' : 20062+3708
SEI 874

37' : 20024+3706
SEI 810

38' : 20060+3714
SEI 866AB

39' : 20076+3627
SEI 898AB

39' : 20060+3606
SEI 864

40' : 20058+3605
SEI 853

40' : 20065+3609
SEI 880AB

41' : 20068+3611
SEI 884AB

41' : 20072+3616
SEI 891AB

41' : 20017+3703
GRV 306

42' : 20035+3601
STF2624AB

42' : 20075+3618
TOB 167

43' : 20075+3619
SEI 897



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.

20046+3641 A 1413 (HD 227487)

 
 
20h 04m 34.48s +36° 40' 49.1" P.A. 139.00 sep 2.4 mag 9.97,10.60 Sp A7V
 
 
Coord 2000 20046+3641 Discov num A  1413 Comp Coord arcsec 2000 20 04 34.48 +36 40 49.1
Date first 1906 Date last 2017 Obs 12
Pa first 138 Pa last 138.8 P.A. Now (θ) 138.8°
Sep first 2.2 Sep last 2.393 Sep. Now (ρ) 2.393"
Mag pri 9.97 Mag sec 10.60 delta mag (ΔM) 0.63 Spectral class A7V (white)
Pri motion ra -007 Sec motion ra -007
Pri motion dec -002 Sec motion dec -002
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 227487 Constellation Cygnus SAO 69366 Tycho2 2682-01241-1
Gaia DR2 2059948851592675456 HD 227487 ADS 13338