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Doubles in session


Current system
20118+3936
COU 2415 AB
HD 228242


Nearby doubles
3' : 20121+3938
SEI 997

7' : 20124+3940
TDT2083

24' : 20128+3916
SEI1013

26' : 20122+3912
TDT2079

28' : 20099+3951
ALI1135

28' : 20107+4001
TDS1048

31' : 20093+3926
TDT2028

32' : 20135+3912
SEI1025AB

34' : 20144+3920
SEI1039AB

36' : 20133+3905
SEI1017

38' : 20107+3900
ES 2046

39' : 20085+3936
MLB 768

39' : 20151+3929
MLB 982AB

41' : 20088+3915
MLB 769

42' : 20109+3857
DAM 198

42' : 20096+4009
COU2414

42' : 20113+3855
DAM 199

43' : 20112+3854
MLB 950

44' : 20091+3907
MLB 771

44' : 20116+3853
A 1418

45' : 20081+3926
ES 1972

46' : 20158+3937
ES 1974

47' : 20089+3905
MLB 770

47' : 20079+3949
STJ 83

52' : 20156+3910
SEI1046

53' : 20146+3855
ES 2047AB



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

20118+3936 COU 2415 AB (HD 228242)

 
 
20h 11m 50.16s +39° 36' 28.3" P.A. 158.00 sep 0.4 mag 9.80,10.20 Sp B8III
 
 
Coord 2000 20118+3936 Discov num COU2415 Comp AB Coord arcsec 2000 20 11 50.16 +39 36 28.3
Date first 1987 Date last 2014 Obs 7
Pa first 138 Pa last 157.5 P.A. Now (θ) 157.5°
Sep first 0.3 Sep last 0.361 Sep. Now (ρ) 0.361"
Mag pri 9.80 Mag sec 10.20 delta mag (ΔM) 0.4 Spectral class B8III (blue-white)
Pri motion ra -002 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20118+3936 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 228242 20 11 50 +39 36 28 COU 2415 AB 2014 7 158 0.4 9.80 10.20 0.40 <===
Show 20 11 50 +39 36 28 ES 1973 AB,C 2011 2 352 4.1 10.60 12.80 2.20
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 228242 Constellation Cygnus Tycho2 3155-02052-1 HD 228242
 
 
WDS 20118+3936 COU 2415 AB (HD 228242) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 COU Couteau, P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20118+3936 COU2415 AB 2007 3 160 0.4 9.80 10.20 B8III 201150.16+393628.3
20118+3936 COU2415 AB 2011 4 155 0.4 9.80 10.20 B8III 201150.16+393628.3
20118+3936 COU2415 AB 2012 6 155 0.3 9.80 10.20 B8III 201150.16+393628.3
20118+3936 COU2415 AB 2014 7 158 0.4 9.80 10.20 B8III 201150.16+393628.3

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

 
 
WDS 20118+3936 COU 2415 AB (HD 228242) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20118+3936 COU 2415 AB (HD 228242) : MEASURES
 
 
No records found.

 
 
WDS 20118+3936 (HD 228242) : VIRTUAL EYEPIECE
 
 

20118+3936 COU2415A mag 9.8 Sp B8III 20118+3936 COU2415B sep 0.3 P.A. 162.30 mag 10.2 20118+3936 ES 1973C sep 4.0 P.A. 353.60 mag 12.8 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20118+3936 (HD 228242) : ALADIN DSS IMAGE @ 20h 11m 50.16s +39° 36' 28.3"
 
 
 
 
WDS 20118+3936 COU 2415 AB (HD 228242) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20118+3936 COU2415AB distance=0' 20121+3938 SEI 997 distance=3' 20124+3940 TDT2083 distance=7' 20128+3916 SEI1013 distance=24' 20122+3912 TDT2079 distance=26' 20099+3951 ALI1135 distance=28' 20107+4001 TDS1048 distance=28' 20093+3926 TDT2028 distance=31' 20135+3912 SEI1025AB distance=32' 20135+3912 SEI1025AC distance=32' 20144+3920 SEI1039AB distance=34' 20144+3920 TOB 182AC distance=34' 20133+3905 SEI1017 distance=36' 20107+3900 ES 2046 distance=38' 20085+3936 MLB 768 distance=39' 20151+3929 MLB 982AB distance=39' 20151+3929 MLB 982BC distance=39' 20088+3915 MLB 769 distance=41' 20109+3857 DAM 198 distance=42' 20096+4009 COU2414 distance=42' 20113+3855 DAM 199 distance=42' 20112+3854 MLB 950 distance=43' 20091+3907 MLB 771 distance=44' 20116+3853 A 1418 distance=44' 20081+3926 ES 1972 distance=45' 20158+3937 ES 1974 distance=46' 20089+3905 MLB 770 distance=47' 20079+3949 STJ 83 distance=47' 20156+3910 SEI1046 distance=52' 20146+3855 ES 2047AB distance=53' 20146+3855 ES 2047AD distance=53' 20146+3855 ES 2047AE distance=53' 20146+3855 ES 2047BC distance=53' 20163+3924 SEI1051 distance=54' 20117+3843 TDT2073 distance=54' 20167+3938 HO 590AB distance=56' 20167+3938 HO 590AC distance=56' 20134+3844 BLL 47AB distance=56' 20134+3844 BLL 47AC distance=56' 20069+3938 ES 1971 distance=57' 20168+3942 STF2663AB distance=58' 20168+3942 CTT 21AC distance=58' 20168+3942 DAM1040AF distance=58' 20168+3942 DAM1040FG distance=58' 20163+4007 MLB1013 distance=60' 20159+3859 BRT2230 distance=61' 20073+4013 BRT2252 distance=64' 20160+3856 ALI 926 distance=64' 20133+4038 GRV 324 distance=65' 20134+3835 SLE 966 distance=65' 20161+3854 CHR 95 distance=65' 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 20118+3936 COU2415 AB 158 0.4 0
Show 20118+3936 ES 1973 AB,C 352 4.1 0
Show 20121+3938 SEI 997 146 10.3 3
Show 20124+3940 TDT2083 350 1.1 7
Show 20128+3916 SEI1013 330 20.6 24
Show 20122+3912 TDT2079 32 1.9 26
Show 20099+3951 ALI1135 200 13.1 28
Show 20107+4001 TDS1048 339 1.1 28
Show 20093+3926 TDT2028 187 1.5 31
Show 20135+3912 SEI1025 AB 168 5.7 32
Show 20135+3912 SEI1025 AC 256 26.6 32
Show 20144+3920 SEI1039 AB 135 10.7 34
Show 20144+3920 TOB 182 AC 194 43.2 34
Show 20133+3905 SEI1017 259 28.3 36
Show 20107+3900 ES 2046 100 6.2 38
Show 20085+3936 MLB 768 111 5.1 39
Show 20151+3929 MLB 982 AB 183 30.8 39
Show 20151+3929 MLB 982 BC 355 6.0 39
Show 20088+3915 MLB 769 131 4.9 41
Show 20109+3857 DAM 198 263 6.4 42
Show 20096+4009 COU2414 159 0.3 42
Show 20113+3855 DAM 199 70 6.5 42
Show 20112+3854 MLB 950 185 4.2 43
Show 20091+3907 MLB 771 17 3.7 44
Show 20116+3853 A 1418 330 3.0 44
Show 20081+3926 ES 1972 146 4.4 45
Show 20158+3937 ES 1974 160 2.9 46
Show 20089+3905 MLB 770 284 6.1 47
Show 20079+3949 STJ 83 307 0.9 47
Show 20156+3910 SEI1046 249 1.5 52
Show 20146+3855 ES 2047 AB 174 33.2 53
Show 20146+3855 ES 2047 AD 103 10.6 53
Show 20146+3855 ES 2047 AE 106 27.6 53
Show 20146+3855 ES 2047 BC 197 4.7 53
Show 20163+3924 SEI1051 148 22.3 54
Show 20117+3843 TDT2073 151 1.6 54
Show 20167+3938 HO 590 AB 207 3.5 56
Show 20167+3938 HO 590 AC 88 25.9 56
Show 20134+3844 BLL 47 AB 354 131.7 56
Show 20134+3844 BLL 47 AC 106 154.0 56
Show 20069+3938 ES 1971 291 3.3 57
Show 20168+3942 STF2663 AB 322 5.4 58
Show 20168+3942 CTT 21 AC 188 103.0 58
Show 20168+3942 DAM1040 AF 123 22.3 58
Show 20168+3942 DAM1040 FG 225 3.5 58
Show 20163+4007 MLB1013 160 4.0 60
Show 20159+3859 BRT2230 297 6.0 61
Show 20073+4013 BRT2252 188 2.9 64
Show 20160+3856 ALI 926 282 8.6 64
Show 20133+4038 GRV 324 252 7.7 65
Show 20134+3835 SLE 966 262 11.3 65

 
 
WDS 20118+3936 : COMPONENTS
 
 
  A B
B pa=162.3°
sep=0.35"
 
C pa=353.6°
sep=4.05"
pa=352.7°
sep=4.40"
 
 
20118+3936 A
 
 
Name HD 228242 Coord arcsec 2000 201150.16+393628.3 Mag 9.8 Spectral class B8III (blue-white)
PmRA -2.00 PmDE -3.0 Tycho2 3155-02052-1 HD 228242
Tycho2
Tycho2 3155-02052-1 Pflag RAmdeg 302.95904618 DEmdeg 39.60787709
PmRA -2.1 PmDE -3.2 E RAmdeg 15 E DEmdeg 13
E pmRA 1.3 E pmDE 1.3 EpRAm 1989.34 EpDEm 1990.10
Num 5 Q RAmdeg 0.5 Q DEmdeg 0.7 Q pmRA 0.5
Q pmDE 0.7 BTmag 10.092 E BTmag 0.025 VTmag 9.948
E VTmag 0.028 Prox 999 TYC T HIP
CCDM RAdeg 302.95905222 DEdeg 39.60788389 EpRA 1990 1.48
EpDE 1990 1.68 E RAdeg 16.1 E DEdeg 14.4 Posflg
Corr 0.0
CCDM
Ccdm 20118+3936 RComp Comp A Note1
Note2 Discov num DRAs 0.29 DDEs 25.8
R dRAs 80 Year Theta Rho
Obs 2 Vmag 10.6 Sp B8 PmNote
PmRA PmDE Dm number +39 4074 Cat1 BD
Name2 Cat2 HD 228242 M HD
ADS BDS A13502 M ADS BDS N IDS IDS 20082N3920A
HIC
 
 
20118+3936 B
 
 
Coord arcsec 2000 201150.17+393628.0 Mag 10.2 Calc delta mag 0.4 Calc coord yes
CCDM
Ccdm 20118+3936 RComp Comp B Note1
Note2 Discov num ES 1973 DRAs DDEs
R dRAs Year 1922 Theta 358 Rho 4.3
Obs 1 Vmag 12.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13502 M ADS BDS N IDS IDS 20082N3920B
HIC
 
 
20118+3936 C
 
 
Coord arcsec 2000 201150.12+393632.3 Mag 12.8 Calc delta mag 3 Calc coord yes