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Doubles in session


Current system
20145+3640
RJJ 1 Aa,Ab


Nearby doubles
2' : 20144+3638
SEI1037

6' : 20146+3635
SEI1041

8' : 20151+3637
SLE 975

9' : 20145+3648
ENG 72AB

10' : 20140+3633
SEI1028

10' : 20144+3630
SEI1036

12' : 20140+3630
SEI1030

12' : 20136+3640
SEI1023

14' : 20135+3634
SEI1020AB

16' : 20133+3634
SEI1016

18' : 20143+3657
A 1420

18' : 20136+3631
SEI1024

19' : 20145+3621
TDT2114

19' : 20160+3648
SLE 979

20' : 20129+3642
SEI1011

20' : 20130+3629
ES 2188

21' : 20128+3638
SEI1010

21' : 20150+3659
SLE 974

22' : 20127+3642
SEI1007

23' : 20127+3645
SEI1006AB

23' : 20126+3639
SLE 962

24' : 20141+3617
SEI1031

28' : 20166+3651
SEI1059

28' : 20141+3706
A 1419

28' : 20167+3629
COU2417

29' : 20168+3633
KRV 10



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

20145+3640 RJJ 1 Aa,Ab

 
 
20h 14m 31.77s +36° 39' 39.6" P.A. 132.00 sep 0.0 mag 7.40,7.70 Sp WC7+O9V dist. 2083.33 pc (6795.82 l.y.)
 
 
Coord 2000 20145+3640 Discov num RJJ   1 Comp Aa,Ab Coord arcsec 2000 20 14 31.77 +36 39 39.6
Date first 2005 Date last 2013 Obs 2
Pa first 295 Pa last 131.6 P.A. Now (θ) 131.6°
Sep first 0.0 Sep last 0.004 Sep. Now (ρ) 0.004"
Mag pri 7.40 Mag sec 7.70 delta mag (ΔM) 0.3 Spectral class WC7+O9V (Wolf-Rayet/blue)
Pri motion ra -003 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes N K (See Notes, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
 
 
20145+3640 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 69677 20 14 32 +36 39 40 RJJ 1 Aa,Ab 2013 2 132 0.0 7.40 7.70 0.30 <===
Show V1679 Cyg 69677 20 14 32 +36 39 40 BLL 48 AB 2015 21 117 113.6 7.97 10.06 2.09
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V1679 Cyg Constellation Cygnus SAO 69677 HIP 99769
Tycho2 2683-03369-1 Gaia DR2 2060508777869902592 HD 192641 BD BD+36 3956
Distance 2083.33 Distance ly 6795.82
 
 
WDS 20145+3640 RJJ 1 Aa,Ab : NOTES
 
 
discov_num notes refcode
RJJ 1 Aa,Ab: Primary is Wolf-Rayet WR 137, distance 1300pc. First resolved
with IOTA array by Rajagopal (2010), later confirmed with CHARA Array RjJ2010
by Richardson et al. (2016). Richardson et al. infer the following
stellar parameters for the WR star and its close companion:
Spectral types: WC7pd O9 V
T* (K) 60000 +/- 5000 32000 +/- 2000
log L (Lsun) 5.22 +/-0.05 4.75 +/- 0.05
R* (Rsun) 3.8 +/- 1 7.7 +/- 1 CIA2016b
 
 
REFERENCES
 
 
refcode metd author reference
CIA2016b Kc j Richardson, N.D., Shenar, T., Roy-Loubier, O., Schaefer, G., Moffat, A.F.J., 2016MNRAS.461.4115R
CIA2016b St-Louis, N., Gies, D.R., Farrington, C., Hill, G.M., Williams, P.M.,
CIA2016b Gordon, K., Pablo, H., & Ramiaramanantsoa, T.
CIA2016b MNRAS 461, 4115, 2016
RjJ2010 Ki - Rajagopal J. 2010RMxAC..38...54R
RjJ2010 Rev. Mex. Astron. Astrofis. Ser. Conf. 38, 54, 2010
 
 
DISCOVERER
 
 
idgroup discov author
1 BLL Ball, R.S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20145+3640 RJJ 1 Aa,Ab 2013 2 132 0.0 7.40 7.70 WC7+O9V N K 201431.77+363939.6

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

 
 
WDS 20145+3640 RJJ 1 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20145+3640 RJJ 1 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 20145+3640 : VIRTUAL EYEPIECE
 
 

20145+3640 BLL 48A mag 7.97 Sp WC 20145+3640 RJJ 1Ab mag 7.7 Sp O9V 20145+3640 BLL 48B sep 96.3 P.A. 122.60 mag 10.06 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20145+3640 : ALADIN DSS IMAGE @ 20h 14m 31.77s +36° 39' 39.6"
 
 
 
 
WDS 20145+3640 RJJ 1 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20145+3640 RJJ 1Aa,Ab distance=0' 20144+3638 SEI1037 distance=2' 20146+3635 SEI1041 distance=6' 20145+3648 ENG 72BD distance=6' 20151+3637 SLE 975 distance=8' 20145+3648 ENG 72AB distance=9' 20145+3648 ENG 72AC distance=9' 20145+3648 BUP 207AE distance=9' 20145+3648 SMR 39AF distance=9' 20145+3648 FYM 105AH distance=9' 20140+3633 SEI1028 distance=10' 20144+3630 SEI1036 distance=10' 20140+3630 SEI1030 distance=12' 20136+3640 SEI1023 distance=12' 20135+3634 SEI1020AB distance=14' 20135+3634 SEI1022AC distance=14' 20133+3634 SEI1016 distance=16' 20143+3657 A 1420 distance=18' 20136+3631 SEI1024 distance=18' 20145+3621 TDT2114 distance=19' 20160+3648 SLE 979 distance=19' 20129+3642 SEI1011 distance=20' 20130+3629 ES 2188 distance=20' 20128+3638 SEI1010 distance=21' 20150+3659 SLE 974 distance=21' 20127+3642 SEI1007 distance=22' 20127+3645 SEI1006AB distance=23' 20127+3645 SLE 964AC distance=23' 20126+3639 SLE 962 distance=23' 20141+3617 SEI1031 distance=24' 20166+3651 SEI1059 distance=28' 20141+3706 A 1419 distance=28' 20167+3629 COU2417 distance=28' 20168+3633 KRV 10 distance=29' 20120+3640 SEI 989 distance=31' 20167+3625 SLE 983 distance=31' 20140+3710 SEI1029 distance=31' 20119+3642 TDT2077 distance=32' 20138+3710 TOB 181 distance=32' 20132+3611 NSN 731 distance=33' 20126+3618 SEI1004AB distance=33' 20126+3618 TOB 178AC distance=33' 20170+3627 SEI1063 distance=33' 20165+3703 ARY 24 distance=34' 20122+3621 SEI 996AB distance=34' 20122+3621 STJ 71AC distance=34' 20137+3713 SEI1026 distance=35' 20135+3607 SEI1019 distance=36' 20126+3614 SEI1003 distance=36' 20155+3713 ES 2189 distance=36' 20115+3639 SEI 974AB distance=36' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20145+3640 BLL 48 AB 117 113.6
Show 20145+3640 RJJ 1 Aa,Ab 132 0.0
Show 20144+3638 SEI1037 101 32.1 2
Show 20146+3635 SEI1041 23 21.6 6
Show 20145+3648 ENG 72 BD 120 217.5 6
Show 20151+3637 SLE 975 152 9.0 8
Show 20145+3648 ENG 72 AB 155 215.3 9
Show 20145+3648 ENG 72 AC 22 212.3 9
Show 20145+3648 BUP 207 AE 325 35.2 9
Show 20145+3648 SMR 39 AF 33 32.7 9
Show 20145+3648 FYM 105 AH 133 10.0 9
Show 20140+3633 SEI1028 177 13.3 10
Show 20144+3630 SEI1036 230 26.2 10
Show 20140+3630 SEI1030 163 15.7 12
Show 20136+3640 SEI1023 344 28.6 12
Show 20135+3634 SEI1020 AB 276 13.9 14
Show 20135+3634 SEI1022 AC 217 21.9 14
Show 20133+3634 SEI1016 343 12.2 16
Show 20143+3657 A 1420 70 0.6 18
Show 20136+3631 SEI1024 99 17.4 18
Show 20145+3621 TDT2114 66 0.6 19
Show 20160+3648 SLE 979 34 11.1 19
Show 20129+3642 SEI1011 257 6.9 20
Show 20130+3629 ES 2188 74 1.7 20
Show 20128+3638 SEI1010 205 31.4 21
Show 20150+3659 SLE 974 330 12.5 21
Show 20127+3642 SEI1007 238 22.8 22
Show 20127+3645 SEI1006 AB 306 17.1 23
Show 20127+3645 SLE 964 AC 332 11.5 23
Show 20126+3639 SLE 962 21 8.5 23
Show 20141+3617 SEI1031 61 18.6 24
Show 20166+3651 SEI1059 320 13.0 28
Show 20141+3706 A 1419 35 0.4 28
Show 20167+3629 COU2417 351 0.8 28
Show 20168+3633 KRV 10 359 2.5 29
Show 20120+3640 SEI 989 153 29.4 31
Show 20167+3625 SLE 983 276 11.9 31
Show 20140+3710 SEI1029 232 7.2 31
Show 20119+3642 TDT2077 49 0.8 32
Show 20138+3710 TOB 181 16 15.0 32
Show 20132+3611 NSN 731 324 25.3 33
Show 20126+3618 SEI1004 AB 108 25.8 33
Show 20126+3618 TOB 178 AC 288 27.8 33
Show 20170+3627 SEI1063 258 16.3 33
Show 20165+3703 ARY 24 307 96.3 34
Show 20122+3621 SEI 996 AB 29.5 34
Show 20122+3621 STJ 71 AC 105 1.1 34
Show 20137+3713 SEI1026 87 19.5 35
Show 20135+3607 SEI1019 115 23.9 36
Show 20126+3614 SEI1003 282 23.4 36
Show 20155+3713 ES 2189 136 3.3 36

 
 
WDS 20145+3640 : COMPONENTS
 
 
  A Ab
Ab pa=137.9°
sep=0.00"
 
B pa=122.6°
sep=96.28"
pa=122.6°
sep=96.27"
 
 
20145+3640 A
 
 
Name V1679 Cyg Coord arcsec 2000 201431.77+363939.6 Mag 7.97 Spectral class WC (Wolf-Rayet)
PmRA -3.00 PmDE -7.0 SAO 69677 HIP 99769
Tycho2 2683-03369-1 HD 192641 BD BD+36 3956
Tycho2
Tycho2 2683-03369-1 Pflag RAmdeg 303.63236238 DEmdeg 36.66099534
PmRA -2.9 PmDE -6.8 E RAmdeg 5 E DEmdeg 5
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.13 EpDEm 1991.21
Num 14 Q RAmdeg 1.4 Q DEmdeg 1.0 Q pmRA 1.3
Q pmDE 1.0 BTmag 8.293 E BTmag 0.016 VTmag 7.967
E VTmag 0.012 Prox 999 TYC T HIP 99769
CCDM RAdeg 303.63237111 DEdeg 36.66101111 EpRA 1990 1.64
EpDE 1990 1.68 E RAdeg 5.3 E DEdeg 5.4 Posflg
Corr 0.1
SAO
SAO 69677 DelFlag RA1950 PmRA1950 -0.0009
DE1950 PmDE1950 -0.026 Vmag 7.8 SpType Oa
Double code Source 5 CatNum 1973 DM BD+36 3956
DMcomp BDsup HD 192641 M HD 0
GC RA1950rad 5.29121038 DE1950rad 0.63718072 PmRA2000 -0.0006
PmDE2000 -0.028
Hipparcos
Catalog H HIP 99769 Proxy RAhms 20 14 31.77
DEdms +36 39 39.6 Vmag 7.92 VarFlag R Vmag G
RAdeg 303.632 DEdeg 36.661 AstroRef Plx -0.39
CCDM 20146+3639 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 192641 BD BD+36 3956
CD CP Dm number +36 3956 VIred 0.31
SpType WC... R SpType Coord arcsec 2000 201431.77+363939.6
Hipparcos 2
HIP 99769 Sn 5 So 0 Nc 1
RArad 5.2993846029 DErad 0.6398553866 Plx -0.48 PmRA -2.31
PmDE -5.3 E RArad 0.53 E DErad 0.56 E Plx 0.74
E pmRA 0.65 E pmDE 0.71 Hpmag 7.95 E Hpmag 0.0017
SHp 0.014 VA 0 BV 0.306 E BV 0.016
VI 0.35
 
 
20145+3640 Ab
 
 
Coord arcsec 2000 201431.77+363939.6 Mag 7.7 Spectral class O9V (blue) Calc delta mag 0.3
Calc coord yes
 
 
20145+3640 B
 
 
Coord arcsec 2000 201438.51+363847.7 Mag 10.06 PmRA -3.00 PmDE -8.0
Calc delta mag 2.66 Calc coord yes