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Current system
20046+3641
A 1413


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



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

20046+3641 A  1413

 
 
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
139
 P.A. Now (θ)
139°
Sep first
2.2
 Sep last
2.4
 Sep. Now (ρ)
2.4"
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
 
 
Precise pa
138.8
 Precise sep
2.393
 Constellation
Cygnus
 SAO
69366
Tycho2
2682-01241-1
 Gaia DR2
2059948851592675456
 HD
227487
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20046+3641 A 1413 1999 10 138 2.3 9.97 10.60 A7V 200434.48+364049.1
20046+3641 A 1413 2016 11 137 2.2 9.97 10.60 A7V 200434.48+364049.1
20046+3641 A 1413 2017 12 139 2.4 9.97 10.60 A7V 200434.48+364049.1

If you need more information about this double, apply for a data request form to the WDS.