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Doubles in session


Current system
21176+6818
YUN 1 AB


Nearby doubles
12' : 21157+6821
BVD 135

34' : 21122+6803
KPP4227AB

39' : 21225+6751
TDT2933

58' : 21158+6721
STF2788

72' : 21195+6928
MLB 304

72' : 21290+6744
TDT2986

76' : 21208+6704
LDS4880

88' : 21209+6944
MLB 365

90' : 21016+6810
LI 6AB

91' : 21195+6647
TDT2902

100' : 21293+6703
HU 964

101' : 21069+6940
LAF 63AB

103' : 21334+6728
WHC 23

104' : 21022+6723
KPP4220

107' : 21278+6649
DCH 115

107' : 21148+7003
MLB 364

109' : 21052+6942
MLB 303

113' : 21001+6917
TDT2686

113' : 21068+6644
TDT2757

123' : 21365+6718
KPP4238

123' : 21050+7000
LDS1944

124' : 21238+6619
LDS4884

125' : 21185+6613
HDS3032

125' : 21091+6623
MLR 68

125' : 21091+6626
OCA 4

133' : 21015+6643
HU 959



Selections
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Binary Systems
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Quadruple Systems
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21176+6818 YUN 1 AB

 
 
21h 17m 38.69s +68° 17' 33.4" P.A. 92.00 sep 9.0 mag 10.49,13.08
 
 
Coord 2000 21176+6818 Discov num YUN   1 Comp AB Coord arcsec 2000 21 17 38.69 +68 17 33.4
Date first 2000 Date last 2004 Obs 2
Pa first 98 Pa last 92 P.A. Now (θ) 92°
Sep first 9.9 Sep last 8.97 Sep. Now (ρ) 8.97"
Mag pri 10.49 Mag sec 13.08 delta mag (ΔM) 2.59 Spectral class
Pri motion ra +018 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes K (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.
 
 
21176+6818 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 17 39 +68 17 33 YUN 1 AB 2004 2 92 9.0 10.49 13.08 2.59 <===
Show 21 17 39 +68 17 33 CON 40 CD 2004 1 69 1.0 10.50
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus
 
 
WDS 21176+6818 YUN 1 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Con2008 Ci j Connelley, M.S., Reipurth, B., & Tokunaga, A.T. 2008AJ....135.2496C
Con2008 AJ 135, 2496, 2008
Con2008 (IR duplicity survey among YSOs. Note that primary magnitudes in summary lines
Con2008 are K-band magnitudes of IRAS objects containing these pairs, so are in general
Con2008 severe overestimates of these objects' brightnesses)
Con2008b - Connelley, M.S., Reipurth, B., & Tokunaga, A.T. 2008AJ....135.2526C
Con2008b AJ 135, 2526, 2008 (statistical analysis; no data)
Yun1994 Ci - Yun, J. & Clemens, D. 1994ApJS...92..145Y
Yun1994 ApJS 92, 145, 1994 (duplicity noted but no relative astrometry)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21176+6818 YUN 1 AB 2004 1 92 9.0 10.50   DK 211738.69+681733.4

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

 
 
WDS 21176+6818 YUN 1 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21176+6818 YUN 1 AB : MEASURES
 
 
No records found.

 
 
WDS 21176+6818 : VIRTUAL EYEPIECE
 
 

21176+6818 YUN 1A mag 10.49 21176+6818 YUN 1B sep 3.3 P.A. 95.40 mag 13.08 21176+6818 CON 40C mag 10.5 21176+6818 CON 40D sep 0.5 P.A. 43.20 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 21176+6818 : ALADIN DSS IMAGE @ 21h 17m 38.69s +68° 17' 33.4"
 
 
 
 
WDS 21176+6818 YUN 1 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21176+6818 YUN 1AB distance=1' 21176+6818 CON 40CD distance=1' 21157+6821 BVD 135 distance=12' 21122+6803 KPP4227AB distance=34' 21225+6751 TDT2933 distance=39' 21158+6721 STF2788 distance=58' 21195+6928 MLB 304 distance=72' 21290+6744 TDT2986 distance=72' 21208+6704 LDS4880 distance=76' 21209+6944 MLB 365 distance=88' 21016+6810 LI 6AB distance=90' 21195+6647 TDT2902 distance=91' 21293+6703 HU 964 distance=100' 21069+6940 LAF 63AB distance=101' 21069+6940 LAF 63AC distance=101' 21069+6940 LAF 63AD distance=101' 21334+6728 WHC 23 distance=103' 21022+6723 KPP4220 distance=104' 21278+6649 DCH 115 distance=107' 21148+7003 MLB 364 distance=107' 21052+6942 MLB 303 distance=109' 21001+6917 TDT2686 distance=113' 21068+6644 TDT2757 distance=113' 21365+6718 KPP4238 distance=123' 21050+7000 LDS1944 distance=123' 21238+6619 LDS4884 distance=124' 21185+6613 HDS3032 distance=125' 21091+6623 MLR 68 distance=125' 21091+6626 OCA 4 distance=125' 21015+6643 HU 959 distance=133' 21125+6608 FOX 97 distance=134' 21140+6606 MLB 221 distance=134' 21027+7005 TDT2710 distance=134' 21344+6644 STFA 57AB distance=135' 21344+6644 STFA 57AC distance=135' 21327+7009 MLB 366 distance=137' 21289+7024 BKO 772 distance=140' 21274+7028 CSR 1 distance=141' 21197+6558 TDT2906 distance=141' 21309+7020 CSR 2AB distance=142' 21309+7020 BKO 773BC distance=142' 21275+7028 SHR 1 distance=148' 21287+7034 LAB 6Aa,Ab (Alfirk) distance=148' 21287+7034 STF2806AB (Alfirk) distance=148' 21322+7025 KPP2361 distance=149' 21110+6549 HU 960 distance=155' 21115+7050 HDS3019AB distance=156' 21326+6607 HJ 1665 distance=157' 21319+7034 H 5 28AB distance=157' 21319+7034 H 5 28AC distance=157' 21338+6611 LDS4897 distance=159' 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 21176+6818 YUN 1 AB 92 9.0 1
Show 21176+6818 CON 40 CD 69 1.0 1
Show 21157+6821 BVD 135 310 24.9 12
Show 21122+6803 KPP4227 AB 298 1.9 34
Show 21225+6751 TDT2933 157 0.6 39
Show 21158+6721 STF2788 352 8.1 58
Show 21195+6928 MLB 304 47 5.2 72
Show 21290+6744 TDT2986 223 0.5 72
Show 21208+6704 LDS4880 141 226.6 76
Show 21209+6944 MLB 365 47 5.1 88
Show 21016+6810 LI 6 AB 168 2.5 90
Show 21195+6647 TDT2902 182 0.9 91
Show 21293+6703 HU 964 271 1.3 100
Show 21069+6940 LAF 63 AB 201 3.7 101
Show 21069+6940 LAF 63 AC 259 8.4 101
Show 21069+6940 LAF 63 AD 332 14.5 101
Show 21334+6728 WHC 23 201 15.6 103
Show 21022+6723 KPP4220 302 1.2 104
Show 21278+6649 DCH 115 321 0.6 107
Show 21148+7003 MLB 364 59 5.2 107
Show 21052+6942 MLB 303 6.1 109
Show 21001+6917 TDT2686 42 2.4 113
Show 21068+6644 TDT2757 248 0.7 113
Show 21365+6718 KPP4238 336 12.9 123
Show 21050+7000 LDS1944 349 48.0 123
Show 21238+6619 LDS4884 283 3.9 124
Show 21185+6613 HDS3032 144 0.7 125
Show 21091+6623 MLR 68 280 0.8 125
Show 21091+6626 OCA 4 37 0.6 125
Show 21015+6643 HU 959 164 1.3 133
Show 21125+6608 FOX 97 40 1.6 134
Show 21140+6606 MLB 221 175 3.8 134
Show 21027+7005 TDT2710 42 0.4 134
Show 21344+6644 STFA 57 AB 25 183.1 135
Show 21344+6644 STFA 57 AC 346 126.1 135
Show 21327+7009 MLB 366 151 2.8 137
Show 21289+7024 BKO 772 96 11.7 140
Show 21274+7028 CSR 1 286 7.7 141
Show 21197+6558 TDT2906 192 0.4 141
Show 21309+7020 CSR 2 AB 69 12.4 142
Show 21309+7020 BKO 773 BC 321 10.2 142
Show 21275+7028 SHR 1 141 11.5 148
Show Alfirk 21287+7034 LAB 6 Aa,Ab 226 0.2 148
Show Alfirk 21287+7034 STF2806 AB 250 13.6 148
Show 21322+7025 KPP2361 247 20.3 149
Show 21110+6549 HU 960 38 3.5 155
Show 21115+7050 HDS3019 AB 136 0.3 156
Show 21326+6607 HJ 1665 65 22.7 157
Show 21319+7034 H 5 28 AB 342 79.2 157
Show 21319+7034 H 5 28 AC 169 132.9 157
Show 21338+6611 LDS4897 315 101.7 159

 
 
WDS 21176+6818 : COMPONENTS
 
 
  A B C
B pa=95.4°
sep=3.33"
 
C pa=0.0°
sep=0.00"
pa=275.4°
sep=3.33"
 
D pa=43.2°
sep=0.51"
pa=283.0°
sep=3.05"
pa=43.2°
sep=0.51"
 
 
21176+6818 A
 
 
Coord arcsec 2000 211738.69+681733.4 Mag 10.49 PmRA 18.00 PmDE -9.0
 
 
21176+6818 B
 
 
Coord arcsec 2000 211739.29+681733.1 Mag 13.08 Calc delta mag 2.59 Calc coord yes
 
 
21176+6818 C
 
 
Coord arcsec 2000 211738.69+681733.4 Mag 10.5 PmRA 18.00 PmDE -9.0
Calc delta mag 0.01
 
 
21176+6818 D
 
 
Coord arcsec 2000 211738.75+681733.8 Calc delta mag 10.49 Calc coord yes