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Doubles in session


Current system
21056+6030
A 758 AB
HD 239570


Nearby doubles
49' : 21012+5953
TDT2696

56' : 21118+5959
STF2780AB

59' : 21052+6127
STI1013AB

61' : 21081+6127
STI1016

65' : 20590+5948
TDT2672

66' : 21035+5925
MLR 243

66' : 21063+5924
CLZ 79

69' : 21009+5931
ES 2703

70' : 21035+5922
MRI 37

70' : 21009+5929
MLR 241

72' : 21003+6130
HJ 1607AB

74' : 21130+5941
NSN 741

74' : 21024+5920
STI1011

75' : 21010+5923
MLR 242

78' : 20576+6121
STF3133

80' : 21084+5913
KPP3366

83' : 21077+6149
MLR 506

84' : 20563+5943
LDS2794

85' : 21082+5907
A 760AB

86' : 21045+5904
MLB1090

87' : 21132+5924
TDT2832

91' : 20568+6134
STF2740AB

91' : 21070+5900
STF2766

93' : 20598+6152
BU 472

97' : 20525+6026
DAM1044

97' : 20580+6149
STI1005



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.

21056+6030 A 758 AB (HD 239570)

 
 
21h 05m 34.47s +60° 29' 33.5" P.A. 124.00 sep 0.4 mag 9.89,10.76 Sp A5 dist. 290.7 pc (948.26 l.y.)
 
 
Coord 2000 21056+6030 Discov num A   758 Comp AB Coord arcsec 2000 21 05 34.47 +60 29 33.5
Date first 1904 Date last 2008 Obs 17
Pa first 353 Pa last 124 P.A. Now (θ) 124°
Sep first 0.3 Sep last 0.36 Sep. Now (ρ) 0.36"
Mag pri 9.89 Mag sec 10.76 delta mag (ΔM) 0.87 Spectral class A5 (white)
Pri motion ra +006 Sec motion ra
Pri motion dec +004 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
21056+6030 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 239570 19186 21 05 34 +60 29 34 A 758 AB 2008 17 124 0.4 9.89 10.76 0.87 Y <===
Show 19186 21 05 34 +60 29 34 A 758 AB,C 2014 8 189 8.6 9.45 14.00 4.55
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 239570 Constellation Cepheus SAO 19186 HIP 104113
Tycho2 4247-01298-1 Gaia DR2 2192468383843943168 HD 239570 ADS 14635
BD BD+59 2315 Distance 290.7 Distance ly 948.26
 
 
ORBITAL ELEMENTS
 
 
Period (P)270y Periastron (T)2015y Semi-major axis (a)0.304a
Eccentricity (e)0.19 Inclination (i)51° Longitude of periastron (ω)45°
Node (Ω)115.8° Notes ReferenceHei1998
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 125.7 0.246
2001 127.0 0.244
2002 128.3 0.242
2003 129.6 0.239
2004 130.9 0.237
2005 132.3 0.235
2006 133.7 0.232
2007 135.1 0.229
2008 136.6 0.227
2009 138.1 0.224
2010 139.6 0.221
2011 141.2 0.218
2012 142.8 0.215
2013 144.5 0.212
2014 146.2 0.209
2015 148.0 0.206
2016 149.8 0.203
2017 151.7 0.200
2018 153.6 0.196
2019 155.6 0.193
2020 157.7 0.190
2021 159.8 0.187
2022 162.0 0.185
2023 164.3 0.182
2024 166.6 0.179
2025 169.0 0.177
2026 171.5 0.174
2027 174.1 0.172
2028 176.7 0.170
2029 179.3 0.168
2030 182.0 0.167


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds21056%2B6030a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21056+6030 A 758 AB (HD 239570) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hei1998 Ma j Heintz, W.D. 1998ApJS..117..587H
Hei1998 +orb ApJS 117, 587, 1998
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21056+6030 A 758 AB 1996 15 120 0.2 9.89 10.76 A5 OD 210534.47+602933.5
21056+6030 A 758 AB 2007 16 123 0.3 9.89 10.76 A5 OD 210534.47+602933.5
21056+6030 A 758 AB 2008 17 124 0.4 9.89 10.76 A5 OD 210534.47+602933.5

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

 
 
WDS 21056+6030 A 758 AB (HD 239570) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21056+6030 A 758 AB (HD 239570) : MEASURES
 
 
No records found.

 
 
WDS 21056+6030 (HD 239570) : VIRTUAL EYEPIECE
 
 

21056+6030 A 758A mag 9.89 Sp A5 21056+6030 A 758B sep 0.2 P.A. 143.90 mag 10.76 21056+6030 A 758C sep 8.5 P.A. 184.70 mag 14 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 21056+6030 (HD 239570) : ALADIN DSS IMAGE @ 21h 05m 34.47s +60° 29' 33.5"
 
 
 
 
WDS 21056+6030 A 758 AB (HD 239570) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21056+6030 A 758AB distance=1' 21056+6030 A 758AB,C distance=1' 21012+5953 TDT2696 distance=49' 21118+5959 MCA 67Aa,Ab distance=56' 21118+5959 STF2780AB distance=56' 21118+5959 STF2780AC distance=56' 21118+5959 WAL 137AB,D distance=56' 21118+5959 WAL 137AB,E distance=56' 21052+6127 MRI 21BC distance=58' 21052+6127 STI1013AB distance=59' 21081+6127 STI1016 distance=61' 20590+5948 TDT2672 distance=65' 21035+5925 MLR 243 distance=66' 21063+5924 CLZ 79 distance=66' 21009+5931 ES 2703 distance=69' 21035+5922 MRI 37 distance=70' 21009+5929 MLR 241 distance=70' 21003+6130 HJ 1607AB distance=72' 21003+6130 HJ 1607AC distance=72' 21003+6130 HJ 1607AD distance=72' 21130+5941 NSN 741 distance=74' 21024+5920 STI1011 distance=74' 21010+5923 MLR 242 distance=75' 20576+6121 STF3133 distance=78' 21084+5913 KPP3366 distance=80' 21077+6149 MLR 506 distance=83' 20563+5943 LDS2794 distance=84' 21082+5907 A 760AB distance=85' 21045+5904 MLB1090 distance=86' 21132+5924 TDT2832 distance=87' 20568+6134 STF2740AB distance=91' 21070+5900 STF2766 distance=91' 20598+6152 BU 472 distance=93' 20525+6026 DAM1044 distance=97' 20580+6149 STI1005 distance=97' 21055+6210 STF2764A,BC distance=100' 21055+6210 HU 765BC distance=100' 20520+6039 STI1001 distance=101' 20520+6022 SKF2091 distance=101' 21021+6207 LDS4863 distance=101' 21076+6214 HU 766 distance=106' 21122+5854 ARG 107 distance=108' 21202+6038 A 763 distance=109' 21160+5914 TDT2869 distance=110' 21204+6041 ES 138 distance=110' 20559+5906 A 754 distance=112' 21182+5931 STI1020 distance=112' 21189+5938 MLB1092 distance=113' 21182+6136 MLR 507 distance=114' 20521+6127 HU 762 distance=114' 20537+5918 A 751 distance=115' 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 21056+6030 A 758 AB 124 0.4 1
Show 21056+6030 A 758 AB,C 189 8.6 1
Show 21012+5953 TDT2696 246 0.5 49
Show 21118+5959 MCA 67 Aa,Ab 305 0.0 56
Show 21118+5959 STF2780 AB 211 1.0 56
Show 21118+5959 STF2780 AC 211 118.8 56
Show 21118+5959 WAL 137 AB,D 260 96.3 56
Show 21118+5959 WAL 137 AB,E 46 61.5 56
Show 21052+6127 MRI 21 BC 105 2.8 58
Show 21052+6127 STI1013 AB 254 12.0 59
Show 21081+6127 STI1016 101 11.9 61
Show 20590+5948 TDT2672 258 3.0 65
Show 21035+5925 MLR 243 224 0.2 66
Show 21063+5924 CLZ 79 332 120.3 66
Show 21009+5931 ES 2703 230 10.2 69
Show 21035+5922 MRI 37 175 6.0 70
Show 21009+5929 MLR 241 174 0.9 70
Show 21003+6130 HJ 1607 AB 73 15.7 72
Show 21003+6130 HJ 1607 AC 329 30.5 72
Show 21003+6130 HJ 1607 AD 343 87.6 72
Show 21130+5941 NSN 741 188 8.8 74
Show 21024+5920 STI1011 34 15.2 74
Show 21010+5923 MLR 242 287 3.9 75
Show 20576+6121 STF3133 101 3.3 78
Show 21084+5913 KPP3366 201 5.4 80
Show 21077+6149 MLR 506 144 1.1 83
Show 20563+5943 LDS2794 120 85.6 84
Show 21082+5907 A 760 AB 331 3.5 85
Show 21045+5904 MLB1090 34 9.5 86
Show 21132+5924 TDT2832 56 0.6 87
Show 20568+6134 STF2740 AB 331 4.1 91
Show 21070+5900 STF2766 247 4.5 91
Show 20598+6152 BU 472 14 0.8 93
Show 20525+6026 DAM1044 45 6.8 97
Show 20580+6149 STI1005 140 10.2 97
Show 21055+6210 STF2764 A,BC 298 6.9 100
Show 21055+6210 HU 765 BC 28 0.8 100
Show 20520+6039 STI1001 223 7.1 101
Show 20520+6022 SKF2091 292 45.4 101
Show 21021+6207 LDS4863 95 25.7 101
Show 21076+6214 HU 766 341 0.3 106
Show 21122+5854 ARG 107 193 37.0 108
Show 21202+6038 A 763 214 1.3 109
Show 21160+5914 TDT2869 283 0.7 110
Show 21204+6041 ES 138 281 10.2 110
Show 20559+5906 A 754 6 1.0 112
Show 21182+5931 STI1020 128 2.8 112
Show 21189+5938 MLB1092 106 10.5 113
Show 21182+6136 MLR 507 185 0.5 114
Show 20521+6127 HU 762 178 1.6 114
Show 20537+5918 A 751 52 0.2 115

 
 
WDS 21056+6030 : COMPONENTS
 
 
  A B
B pa=143.9°
sep=0.25"
 
C pa=184.7°
sep=8.54"
pa=185.8°
sep=8.35"
 
 
21056+6030 A
 
 
Name HD 239570 Coord arcsec 2000 210534.47+602933.5 Mag 9.89 Spectral class A5 (white)
PmRA 6.00 PmDE 4.0 SAO 19186 HIP 104113
Tycho2 4247-01298-1 HD 239570 BD BD+59 2315
Tycho2
Tycho2 4247-01298-1 Pflag RAmdeg 316.39368338 DEmdeg 60.49264635
PmRA 4.6 PmDE 7.3 E RAmdeg 10 E DEmdeg 11
E pmRA 1.6 E pmDE 1.6 EpRAm 1990.63 EpDEm 1990.54
Num 8 Q RAmdeg 1.2 Q DEmdeg 1.5 Q pmRA 1.2
Q pmDE 1.6 BTmag 9.744 E BTmag 0.021 VTmag 9.455
E VTmag 0.019 Prox 999 TYC T HIP 104113
CCDM AB RAdeg 316.39366306 DEdeg 60.49263194 EpRA 1990 1.62
EpDE 1990 1.64 E RAdeg 10.4 E DEdeg 11.3 Posflg P
Corr 0.0
SAO
SAO 19186 DelFlag RA1950 PmRA1950 0
DE1950 PmDE1950 0.029 Vmag 8.9 SpType A3
Double code Source 38 CatNum 11899 DM BD+59 2315
DMcomp BDsup HD 239570 M HD 0
GC RA1950rad 5.51683827 DE1950rad 1.05228662 PmRA2000 0.0004
PmDE2000 0.025
Hipparcos
Catalog H HIP 104113 Proxy H RAhms 21 05 34.47
DEdms +60 29 33.5 Vmag 9.41 VarFlag R Vmag H
RAdeg 316.394 DEdeg 60.4926 AstroRef A Plx 2.73
CCDM 21056+6030 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 115 Rho 0.316 HD 239570 BD BD+59 2315
CD CP Dm number +59 2315 VIred 0.39
SpType A5 R SpType Coord arcsec 2000 210534.47+602933.5
Hipparcos 2
HIP 104113 Sn 15 So 3 Nc 2
RArad 5.5221103026 DErad 1.0557957351 Plx 3.44 PmRA 6.04
PmDE 6.06 E RArad 0.77 E DErad 0.71 E Plx 0.85
E pmRA 0.85 E pmDE 0.86 Hpmag 9.4827 E Hpmag 0.0023
SHp 0.021 VA 0 BV 0.259 E BV 0.028
VI 0.29
CCDM
Ccdm 21056+6030 RComp Comp A Note1
Note2 Discov num DRAs -1.50 DDEs -26.6
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.4 Sp A3 PmNote *
PmRA 1 PmDE 7 Dm number +59 2315 Cat1 BD
Name2 +60 1343 Cat2 AGK2/3 HD 239570 M HD
ADS BDS A14635 M ADS BDS N IDS IDS 21032N6005A
HIC 104113
 
 
21056+6030 B
 
 
Coord arcsec 2000 210534.49+602933.3 Mag 10.76 Calc delta mag 0.87 Calc coord yes
CCDM
Ccdm 21056+6030 RComp Comp B Note1
Note2 Discov num A 758 DRAs DDEs
R dRAs Year 1957 Theta 080 Rho 0.2
Obs 7 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14635 M ADS BDS N IDS IDS 21032N6005B
HIC 104113
 
 
21056+6030 C
 
 
Coord arcsec 2000 210534.38+602925.0 Mag 14 Calc delta mag 4.11 Calc coord yes
CCDM
Ccdm 21056+6030 RComp Comp C Note1
Note2 Discov num A 758 DRAs DDEs
R dRAs Year 1904 Theta 189 Rho 8.7
Obs 3 Vmag 14.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14635 M ADS BDS N IDS IDS 21032N6005C
HIC 104113