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Doubles in session


Current system
20105+2920
HDS 2874 Ca,Cb


Nearby doubles
4' : 20103+2920
BAC 1

9' : 20110+2928
TDT2056

10' : 20102+2930
TDT2041

17' : 20114+2910
A 1200

21' : 20101+2941
TDT2039

24' : 20124+2923
AG 401

29' : 20124+2908
A 1201

37' : 20124+2856
MLB 531

39' : 20115+2846
MLB 530

40' : 20134+2910
TDT2100

41' : 20083+2950
A 1198AB

42' : 20105+2841
TDT2048

43' : 20134+2941
MLB 661

46' : 20088+2842
TDT2019

46' : 20090+2841
DA 12

48' : 20085+2842
MLB 529

48' : 20139+2942
TOB 180

49' : 20110+2834
COU1323

49' : 20138+2945
TOB 179

51' : 20140+2859
TDS1052

51' : 20075+2850
TDT1998

53' : 20107+3015
TDT2051

57' : 20067+2856
MLB 704

58' : 20122+2829
MLB 660

62' : 20123+2824
TDT2081

66' : 20058+2946
A 1197



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20105+2920 HDS 2874 Ca,Cb

 
 
20h 10m 32.24s +29° 21' 49.7" P.A. 251.00 sep 0.4 mag 7.61,11.49 Sp B9 dist. 350.88 pc (1144.57 l.y.)
 
 
Coord 2000 20105+2920 Discov num HDS2874 Comp Ca,Cb Coord arcsec 2000 20 10 32.24 +29 21 49.7
Date first 1991 Date last 2012 Obs 3
Pa first 275 Pa last 251 P.A. Now (θ) 251°
Sep first 0.3 Sep last 0.379 Sep. Now (ρ) 0.379"
Mag pri 7.61 Mag sec 11.49 delta mag (ΔM) 3.88 Spectral class B9 (blue-white)
Pri motion ra +004 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
20105+2920 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 10 29 +29 20 05 BRT 46 AB 2015 19 79 5.3 11.24 11.80 0.56
Show 88297 20 10 29 +29 20 05 MLB 477 AC 2018 11 24 113.7 11.24 7.59 3.65
Show 88297 20 10 32 +29 21 50 HDS 2874 Ca,Cb 2012 3 251 0.4 7.61 11.49 3.88 <===
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V398 Vul Constellation Vulpecula SAO 88297 HIP 99402
Tycho2 2166-01101-1 Gaia DR2 2029491451768415360 HD 191745 BD BD+28 3646
Distance 350.88 Distance ly 1144.57
 
 
WDS 20105+2920 HDS 2874 Ca,Cb : NOTES
 
 
discov_num notes refcode
BRT 46 W Uma (EW) type eclipsing binary, P = 0.63757 d. Zas2011
 
 
REFERENCES
 
 
refcode metd author reference
Zas2011 - Zasche, P. ...................
Zas2011 private communication, 2011
 
 
DISCOVERER
 
 
idgroup discov author
1 BRT Barton, S.G.
61 HDS Hipparcos Double Star (from additional DD list)
61 MLB Milburn, W. (Espin, T.E.)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20105+2920 HDS2874 Ca,Cb 1991 1 275 0.3 7.61 11.49 B9 D 201032.24+292149.7
20105+2920 HDS2874 Ca,Cb 2009 2 262 0.4 7.61 11.49 B9 N 201032.24+292149.7
20105+2920 HDS2874 Ca,Cb 2012 3 251 0.4 7.61 11.49 B9 N 201032.24+292149.7

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

 
 
WDS 20105+2920 HDS 2874 Ca,Cb : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20105+2920 HDS 2874 Ca,Cb : MEASURES
 
 
No records found.

 
 
WDS 20105+2920 : VIRTUAL EYEPIECE
 
 

20105+2920 BRT 46A mag 11.24 20105+2920 BRT 46B sep 4.6 P.A. 77.30 mag 11.8 20105+2920 HDS2874C sep 114.5 P.A. 23.60 mag 7.61 Sp B9 20105+2920 HDS2874Cb sep 114.2 P.A. 23.50 mag 11.49 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 20105+2920 : ALADIN DSS IMAGE @ 20h 10m 32.24s +29° 21' 49.7"
 
 
 
 
WDS 20105+2920 HDS 2874 Ca,Cb : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20105+2920 HDS2874Ca,Cb distance=0' 20105+2920 BRT 46AB distance=2' 20105+2920 MLB 477AC distance=2' 20103+2920 BAC 1 distance=4' 20110+2928 TDT2056 distance=9' 20102+2930 TDT2041 distance=10' 20114+2910 A 1200 distance=17' 20101+2941 TDT2039 distance=21' 20124+2923 AG 401 distance=24' 20124+2908 A 1201 distance=29' 20129+2913 HJ 1492A,BC distance=33' 20129+2913 A 1203BC distance=33' 20124+2856 MLB 531 distance=37' 20115+2846 MLB 530 distance=39' 20134+2910 TDT2100 distance=40' 20083+2950 A 1198AB distance=41' 20105+2841 TDT2048 distance=42' 20134+2941 MLB 661 distance=43' 20088+2842 TDT2019 distance=46' 20090+2841 DA 12 distance=46' 20085+2842 MLB 529 distance=48' 20139+2942 TOB 180 distance=48' 20110+2834 COU1323 distance=49' 20138+2945 TOB 179 distance=49' 20140+2859 TDS1052 distance=51' 20075+2850 TDT1998 distance=51' 20107+3015 TDT2051 distance=53' 20067+2856 MLB 704 distance=57' 20122+2829 MLB 660 distance=58' 20123+2824 TDT2081 distance=62' 20058+2946 A 1197 distance=66' 20156+2927 TDS1053 distance=67' 20095+3029 GRV 315 distance=70' 20149+2840 HO 122AB distance=71' 20149+2840 HO 122AC distance=71' 20160+2929 MLB 478AB distance=72' 20160+2929 MLB 478AC distance=72' 20054+2857 TDT1963 distance=73' 20061+2839 TDT1976 distance=73' 20050+2936 GRV 310 distance=73' 20152+3006 TDT2121 distance=76' 20098+2805 TDT2038 distance=78' 20135+3031 J 3063 distance=80' 20167+2932 OSO 121AB distance=81' 20167+2932 OSO 121AC distance=81' 20167+2932 OSO 121AD distance=81' 20167+2932 OSO 121AE distance=81' 20113+3042 TDT2061 distance=82' 20140+3031 COU1475 distance=83' 20053+3010 HJ 1474 distance=83' 20042+2912 TDT1948 distance=84' 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 20105+2920 HDS2874 Ca,Cb 251 0.4
Show 20105+2920 BRT 46 AB 79 5.3 2
Show 20105+2920 MLB 477 AC 24 113.7 2
Show 20103+2920 BAC 1 45 16.5 4
Show 20110+2928 TDT2056 358 1.5 9
Show 20102+2930 TDT2041 189 1.2 10
Show 20114+2910 A 1200 197 5.4 17
Show 20101+2941 TDT2039 177 0.4 21
Show 20124+2923 AG 401 306 4.0 24
Show 20124+2908 A 1201 158 0.3 29
Show 20129+2913 HJ 1492 A,BC 54 18.7 33
Show 20129+2913 A 1203 BC 176 0.4 33
Show 20124+2856 MLB 531 195 1.7 37
Show 20115+2846 MLB 530 32 7.9 39
Show 20134+2910 TDT2100 98 0.7 40
Show 20083+2950 A 1198 AB 229 1.5 41
Show 20105+2841 TDT2048 136 0.6 42
Show 20134+2941 MLB 661 167 3.9 43
Show 20088+2842 TDT2019 95 0.9 46
Show 20090+2841 DA 12 88 26.2 46
Show 20085+2842 MLB 529 57 4.7 48
Show 20139+2942 TOB 180 299 23.4 48
Show 20110+2834 COU1323 334 0.8 49
Show 20138+2945 TOB 179 91 23.6 49
Show 20140+2859 TDS1052 164 1.6 51
Show 20075+2850 TDT1998 4 0.6 51
Show 20107+3015 TDT2051 242 2.0 53
Show 20067+2856 MLB 704 116 2.9 57
Show 20122+2829 MLB 660 290 6.2 58
Show 20123+2824 TDT2081 157 0.5 62
Show 20058+2946 A 1197 331 0.8 66
Show 20156+2927 TDS1053 302 1.0 67
Show 20095+3029 GRV 315 244 22.3 70
Show 20149+2840 HO 122 AB 72 1.4 71
Show 20149+2840 HO 122 AC 152 19.9 71
Show 20160+2929 MLB 478 AB 13 6.3 72
Show 20160+2929 MLB 478 AC 76 153.6 72
Show 20054+2857 TDT1963 194 2.3 73
Show 20061+2839 TDT1976 149 0.5 73
Show 20050+2936 GRV 310 1 45.4 73
Show 20152+3006 TDT2121 11 2.0 76
Show 20098+2805 TDT2038 233 0.6 78
Show 20135+3031 J 3063 76 4.7 80
Show 20167+2932 OSO 121 AB 165 13.2 81
Show 20167+2932 OSO 121 AC 283 15.2 81
Show 20167+2932 OSO 121 AD 190 18.9 81
Show 20167+2932 OSO 121 AE 259 25.2 81
Show 20113+3042 TDT2061 353 0.4 82
Show 20140+3031 COU1475 87 0.2 83
Show 20053+3010 HJ 1474 349 12.6 83
Show 20042+2912 TDT1948 223 2.1 84

 
 
WDS 20105+2920 : COMPONENTS
 
 
  A B C
B pa=77.3°
sep=4.62"
 
C pa=23.6°
sep=114.45"
pa=21.7°
sep=111.78"
 
Cb pa=23.5°
sep=114.21"
pa=21.5°
sep=111.55"
pa=248.4°
sep=0.34"
 
 
20105+2920 A
 
 
Coord arcsec 2000 201028.74+292004.8 Mag 11.24 PmRA 11.00 PmDE 1.0
CCDM
Ccdm 20105+2920 RComp Comp A Note1
Note2 Discov num DRAs -1.10 DDEs 5.1
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13457 M ADS BDS N IDS IDS 20064N2902A
HIC
 
 
20105+2920 B
 
 
Coord arcsec 2000 201029.08+292005.8 Mag 11.8 PmRA 13.00 PmDE 1.0
Calc delta mag 0.56 Calc coord yes
CCDM
Ccdm 20105+2920 RComp Comp B Note1
Note2 Discov num BRT 46 DRAs DDEs
R dRAs Year 1896 Theta 080 Rho 5.0
Obs 2 Vmag 11.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13454 M ADS BDS N IDS IDS 20063N2902B
HIC
 
 
20105+2920 C
 
 
Coord arcsec 2000 201032.24+292149.7 Coord calc 201031.79+292148.9 Mag 7.61 Mag composta 7.59
Spectral class B9 (blue-white) PmRA 4.00 PmDE -3.0 SAO 88297
HIP 99402 Tycho2 2166-01101-1 HD 191745 BD BD+28 3646
Calc delta mag 3.63
Tycho2
Tycho2 2166-01101-1 Pflag RAmdeg 302.63432229 DEmdeg 29.36380428
PmRA 3.5 PmDE -3.9 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.30 EpDEm 1991.48
Num 13 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.7 BTmag 7.489 E BTmag 0.015 VTmag 7.592
E VTmag 0.010 Prox 999 TYC T HIP 99402
CCDM AB RAdeg 302.63431306 DEdeg 29.36381306 EpRA 1990 1.58
EpDE 1990 1.73 E RAdeg 3.9 E DEdeg 3.6 Posflg
Corr 0.2
SAO
SAO 88297 DelFlag RA1950 PmRA1950 0.0004
DE1950 PmDE1950 -0.006 Vmag 7.5 SpType B9
Double code Source 34 CatNum 10949 DM BD+28 3646
DMcomp BDsup HD 191745 M HD 0
GC RA1950rad 5.27308264 DE1950rad 0.50989421 PmRA2000 0.0006
PmDE2000 -0.008
Hipparcos
Catalog H HIP 99402 Proxy H RAhms 20 10 32.24
DEdms +29 21 49.7 Vmag 7.61 VarFlag 2 R Vmag H
RAdeg 302.634 DEdeg 29.3638 AstroRef A Plx 2.96
CCDM 20105+2922 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual C M HIP AB
Theta 275 Rho 0.349 HD 191745 BD BD+28 3646
CD CP Dm number +28 3646 VIred -0.09
SpType B9 R SpType Coord arcsec 2000 201032.24+292149.7
Hipparcos 2
HIP 99402 Sn 15 So 3 Nc 2
RArad 5.2819652164 DErad 0.5124951913 Plx 2.85 PmRA 3.96
PmDE -2.39 E RArad 0.33 E DErad 0.45 E Plx 0.66
E pmRA 0.4 E pmDE 0.47 Hpmag 7.5802 E Hpmag 0.0018
SHp 0.027 VA 2 BV -0.096 E BV 0.007
VI -0.08
 
 
20105+2920 Cb
 
 
Coord arcsec 2000 201032.22+292149.6 Mag 11.49 Calc delta mag 0.25 Calc coord yes