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Doubles in session


Current system
20078+3617
SEI 903
HD 227820


Nearby doubles
4' : 20075+3619
SEI 897

5' : 20075+3618
TOB 167

9' : 20072+3616
SEI 891AB

9' : 20085+3619
SEI 911

11' : 20076+3627
SEI 898AB

11' : 20086+3623
TOB 170

13' : 20086+3610
SEI 914

14' : 20079+3605
SEI 908

14' : 20078+3603
SEI 904

15' : 20068+3611
SEI 884AB

17' : 20068+3628
KPP 804

17' : 20090+3626
SEI 920

18' : 20067+3607
SEI 883AB

18' : 20065+3609
SEI 880AB

22' : 20095+3623
ALI 409

23' : 20094+3630
SEI 928AB

25' : 20081+3554
TDS1043

25' : 20075+3553
SEI 896

26' : 20060+3606
SEI 864

26' : 20074+3553
SEI 894AB

26' : 20098+3629
COU2413

26' : 20070+3554
SEI 887AB

27' : 20073+3553
SEI 892AB

27' : 20064+3558
BUP 204AB

28' : 20101+3617
SEI 939AB

29' : 20097+3600
SEI 936



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20078+3617 SEI 903 (HD 227820)

 
 
20h 07m 51.30s +36° 17' 46.6" P.A. 187.00 sep 12.0 mag 9.42,10.85 Sp A1IV
 
 
Coord 2000 20078+3617 Discov num SEI 903 Comp Coord arcsec 2000 20 07 51.30 +36 17 46.6
Date first 1895 Date last 2015 Obs 15
Pa first 187 Pa last 187 P.A. Now (θ) 187°
Sep first 11.4 Sep last 11.983 Sep. Now (ρ) 11.983"
Mag pri 9.42 Mag sec 10.85 delta mag (ΔM) 1.43 Spectral class A1IV (white)
Pri motion ra -002 Sec motion ra -003
Pri motion dec -001 Sec motion dec -007
Notes
rPM=0.799
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 227820 Constellation Cygnus Tycho2 2683-01514-1 Gaia DR2 2059207540227204864
HD 227820