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Doubles in session


Current system
20016+3435
COU1947


Nearby doubles
10' : 20013+3426
SEI 790

14' : 20025+3427
SEI 811

15' : 20004+3434
SEI 779

17' : 20012+3451
SEI 788

18' : 20015+3452
POP 63

19' : 20002+3429
POP 61

19' : 20016+3417
SEI 793

22' : 20001+3423
HU 1308AB

23' : 20025+3450
SEI 812

23' : 19598+3432
LEP 168

23' : 20005+3418
SEI 780

23' : 20031+3421
BKO 525

24' : 20034+3432
TDS1036

25' : 20032+3421
SEI 820

26' : 20020+3411
SEI 800

26' : 20030+3416
BKO 524

27' : 20035+3448
SEI 824

28' : 20034+3420
SEI 823

30' : 20002+3459
SEI 776

33' : 19594+3454
GAT 28

34' : 20043+3431
SEI 836

35' : 19589+3447
TDT1897

36' : 20041+3419
SEI 834

36' : 20016+3358
SEI 794

39' : 19586+3424
SEI 754AB

40' : 20033+3403
SEI 822



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

20016+3435 COU1947

 
 
20h 01m 33.86s +34° 34' 59.1" P.A. 91.00 sep 0.2 mag 8.86,10.05 Sp B8V dist. 289.86 pc (945.52 l.y.)
 
 
Coord 2000
20016+3435
 Discov num
COU1947
 Comp
Coord arcsec 2000
20 01 33.86 +34 34 59.1
Date first
1981
 Date last
2011
 Obs
6
Pa first
94
 Pa last
91
 P.A. Now (θ)
91°
Sep first
0.3
 Sep last
0.2
 Sep. Now (ρ)
0.2"
Mag pri
8.86
 Mag sec
10.05
 delta mag (ΔM)
1.19
 Spectral class
B8V (blue-white)
Pri motion ra
+005
 Sec motion ra
Pri motion dec
+006
 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
90.6
 Precise sep
0.249
 Constellation
Cygnus
 SAO
69276
HIP
98593
 Tycho2
2678-01481-1
 Gaia DR2
2058545943466190976
 HD
189983
BD
BD+34 3840
 Distance
289.86
 Distance ly
945.52
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20016+3435 COU1947 1996 3 91 0.3 8.86 10.05 B8V 200133.86+343459.1
20016+3435 COU1947 2007 4 92 0.3 8.86 10.05 B8V 200133.86+343459.1
20016+3435 COU1947 2009 5 88 0.3 8.86 10.05 B8V 200133.86+343459.1

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