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20138+2945
TOB 179


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

20138+2945 TOB 179

 
 
20h 13m 49.93s +29° 44' 46.5" P.A. 91.00 sep 23.6 mag 10.74,12.98 Sp B2
 
 
Coord 2000 20138+2945 Discov num TOB 179 Comp Coord arcsec 2000 20 13 49.93 +29 44 46.5
Date first 1984 Date last 2015 Obs 9
Pa first 92 Pa last 90.6 P.A. Now (θ) 90.6°
Sep first 22.7 Sep last 23.638 Sep. Now (ρ) 23.638"
Mag pri 10.74 Mag sec 12.98 delta mag (ΔM) 2.24 Spectral class B2 (blue-white)
Pri motion ra -004 Sec motion ra +011
Pri motion dec -021 Sec motion dec -017
Notes
rPM=0.726
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2166-00241-1 Gaia DR2 2029611264174648576
 
 
WDS 20138+2945 TOB 179 : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
TOB Tobal, T.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
20138+2945 TOB 179 1999 2 91 23.5 10.60 12.40 D 201349.93+294446.5
20138+2945 TOB 179 2002 3 91 23.5 10.60 12.40 D 201349.93+294446.5
20138+2945 TOB 179 2010 4 91 23.3 10.74 12.98 B2 201349.93+294446.5
20138+2945 TOB 179 2015 5 91 23.6 10.74 12.98 B2 201349.93+294446.5

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

 
 
WDS 20138+2945 TOB 179 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20138+2945 TOB 179 : MEASURES
 
 
No records found.

 
 
WDS 20138+2945 : VIRTUAL EYEPIECE
 
 

20138+2945 TOB 179A mag 10.74 Sp B2 20138+2945 TOB 179B sep 23.6 P.A. 90.60 mag 12.98 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20138+2945 : ALADIN DSS IMAGE @ 20h 13m 49.93s +29° 44' 46.5"
 
 
 
 
WDS 20138+2945 TOB 179 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20138+2945 TOB 179 distance=0' 20139+2942 TOB 180 distance=3' 20134+2941 MLB 661 distance=7' 20152+3006 TDT2121 distance=28' 20156+2927 TDS1053 distance=30' 20124+2923 AG 401 distance=30' 20160+2929 MLB 478AB distance=32' 20160+2929 MLB 478AC distance=32' 20129+2913 A 1203BC distance=35' 20129+2913 HJ 1492A,BC distance=35' 20134+2910 TDT2100 distance=36' 20167+2932 OSO 121AB distance=39' 20167+2932 OSO 121AC distance=39' 20167+2932 OSO 121AD distance=39' 20167+2932 OSO 121AE distance=39' 20110+2928 TDT2056 distance=41' 20124+2908 A 1201 distance=42' 20140+2859 TDS1052 distance=46' 20140+3031 COU1475 distance=47' 20135+3031 J 3063 distance=47' 20114+2910 A 1200 distance=47' 20173+2926 TDT2142 distance=49' 20101+2941 TDT2039 distance=49' 20105+2920 HDS2874Ca,Cb distance=49' 20102+2930 TDT2041 distance=50' 20124+2856 MLB 531 distance=51' 20107+3015 TDT2051 distance=51' 20105+2920 BRT 46AB distance=51' 20105+2920 MLB 477AC distance=51' 20103+2920 BAC 1 distance=52' 20179+2945 TDT2149 distance=54' 20177+2922 TDT2145 distance=55' 20175+2909 POP1229Aa,Ab distance=61' 20175+2909 BU 441AB distance=61' 20180+2913 POP 200 distance=63' 20182+2912 A 1205 distance=66' 20115+2846 MLB 530 distance=67' 20149+2840 HO 122AB distance=67' 20149+2840 HO 122AC distance=67' 20113+3042 TDT2061 distance=67' 20095+3029 GRV 315 distance=72' 20083+2950 A 1198AB distance=72' 20109+3047 HDS2876 distance=74' 20191+2915 COU1477 distance=76' 20196+2956 A 1207 distance=76' 20105+2841 TDT2048 distance=78' 20122+2829 MLB 660 distance=80' 20110+2834 COU1323 distance=81' 20123+2824 TDT2081 distance=84' 20188+2849 J 3073 distance=85' 20118+3108 COU1474AB distance=88' 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 20138+2945 TOB 179 91 23.6 0
Show 20139+2942 TOB 180 299 23.4 3
Show 20134+2941 MLB 661 167 3.9 7
Show 20152+3006 TDT2121 11 2.0 28
Show 20156+2927 TDS1053 302 1.0 30
Show 20124+2923 AG 401 306 4.0 30
Show 20160+2929 MLB 478 AB 13 6.3 32
Show 20160+2929 MLB 478 AC 76 153.6 32
Show 20129+2913 A 1203 BC 167 0.3 35
Show 20129+2913 HJ 1492 A,BC 54 18.7 35
Show 20134+2910 TDT2100 98 0.7 36
Show 20167+2932 OSO 121 AB 165 13.2 39
Show 20167+2932 OSO 121 AC 283 15.2 39
Show 20167+2932 OSO 121 AD 190 18.9 39
Show 20167+2932 OSO 121 AE 259 25.2 39
Show 20110+2928 TDT2056 358 1.5 41
Show 20124+2908 A 1201 158 0.3 42
Show 20140+2859 TDS1052 164 1.6 46
Show 20140+3031 COU1475 87 0.2 47
Show 20135+3031 J 3063 76 4.7 47
Show 20114+2910 A 1200 197 5.4 47
Show 20173+2926 TDT2142 316 1.0 49
Show 20101+2941 TDT2039 177 0.4 49
Show 20105+2920 HDS2874 Ca,Cb 269 0.4 49
Show 20102+2930 TDT2041 189 1.2 50
Show 20124+2856 MLB 531 196 1.7 51
Show 20107+3015 TDT2051 242 2.0 51
Show 20105+2920 BRT 46 AB 79 5.3 51
Show 20105+2920 MLB 477 AC 24 113.7 51
Show 20103+2920 BAC 1 45 16.5 52
Show 20179+2945 TDT2149 316 0.8 54
Show 20177+2922 TDT2145 186 0.7 55
Show 20175+2909 POP1229 Aa,Ab 217 0.4 61
Show 20175+2909 BU 441 AB 66 6.4 61
Show 20180+2913 POP 200 205 6.4 63
Show 20182+2912 A 1205 96 1.3 66
Show 20115+2846 MLB 530 32 7.9 67
Show 20149+2840 HO 122 AB 72 1.4 67
Show 20149+2840 HO 122 AC 152 19.9 67
Show 20113+3042 TDT2061 353 0.4 67
Show 20095+3029 GRV 315 244 22.3 72
Show 20083+2950 A 1198 AB 229 1.5 72
Show 20109+3047 HDS2876 67 0.3 74
Show 20191+2915 COU1477 100 0.6 76
Show 20196+2956 A 1207 353 0.6 76
Show 20105+2841 TDT2048 136 0.6 78
Show 20122+2829 MLB 660 290 6.2 80
Show 20110+2834 COU1323 334 0.8 81
Show 20123+2824 TDT2081 157 0.5 84
Show 20188+2849 J 3073 16 4.5 85
Show 20118+3108 COU1474 AB 59 2.9 88

 
 
WDS 20138+2945 : COMPONENTS
 
 
  A
B pa=90.6°
sep=23.64"
 
 
20138+2945 A
 
 
Coord arcsec 2000 201349.93+294446.5 Mag 10.74 Spectral class B2 (blue-white) PmRA -4.00
PmDE -21.0 Tycho2 2166-00241-1
Tycho2
Tycho2 2166-00241-1 Pflag RAmdeg 303.45804496 DEmdeg 29.74629294
PmRA -7.7 PmDE -22.0 E RAmdeg 26 E DEmdeg 27
E pmRA 2.1 E pmDE 2.2 EpRAm 1987.27 EpDEm 1989.35
Num 4 Q RAmdeg 0.3 Q DEmdeg 0.9 Q pmRA 0.3
Q pmDE 0.9 BTmag 11.392 E BTmag 0.051 VTmag 10.760
E VTmag 0.046 Prox 689 TYC T HIP
CCDM RAdeg 303.45806444 DEdeg 29.74634556 EpRA 1990 1.54
EpDE 1990 1.60 E RAdeg 31.7 E DEdeg 28.3 Posflg
Corr 0.2
 
 
20138+2945 B
 
 
Coord arcsec 2000 201351.74+294446.3 Mag 12.98 PmRA 11.00 PmDE -17.0
Delta magnitude 2.24 Coordinate calculated yes