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Doubles in session


Current system
21579+6101
MLR 17 AB


Nearby doubles
18' : 21573+6118
BU 275

19' : 21597+6049
BVD 339

21' : 22005+6054
MLR 510AB

27' : 21556+6040
MLR 509

32' : 21598+6033
A 779

33' : 22023+6106
BU 695AB

35' : 21564+6029
TDT3250

41' : 22033+6051
STF2860AB

42' : 22014+6133
HDS3125

43' : 21543+6134
ES 1922

44' : 21576+6144
MLR 63

48' : 22005+6145
TDT3286

51' : 22049+6100
BU 474

52' : 21518+6129
STI1063AB

53' : 22051+6109
STI1087

54' : 22047+6120
ARY 44AB

58' : 21506+6024
STI1059

61' : 21599+6200
STI1079

62' : 21510+6137
STT 451

62' : 22061+6048
TDT3338

62' : 21549+6159
OSO 161AB

63' : 22065+6057
TDT3342

70' : 21502+6144
TDT3186

71' : 21569+5948
WAK 20

73' : 21559+5950
STT 537

74' : 22080+6100
HDS3143



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.

21579+6101 MLR 17 AB

 
 
21h 57m 51.93s +61° 01' 07.9" P.A. 22.00 sep 0.2 mag 8.30,8.30 Sp G0 dist. 675.68 pc (2204.07 l.y.)
 
 
Coord 2000 21579+6101 Discov num MLR  17 Comp AB Coord arcsec 2000 21 57 51.93 +61 01 07.9
Date first 1968 Date last 1992 Obs 13
Pa first 290 Pa last 22 P.A. Now (θ) 22°
Sep first 0.2 Sep last 0.15 Sep. Now (ρ) 0.15"
Mag pri 8.30 Mag sec 8.30 delta mag (ΔM) 0 Spectral class G0 (yellow)
Pri motion ra -005 Sec motion ra
Pri motion dec +000 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
21579+6101 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 19765 21 57 52 +61 01 08 MLR 17 AB 1992 13 22 0.2 8.30 8.30 0.00 <===
Show 19765 21 57 52 +61 01 08 EVS 45 AC 2014 5 42 18.2 7.78 17.62 9.84
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name IR Cep Constellation Cepheus SAO 19765 HIP 108426
Tycho2 4262-01009-1 Gaia DR2 2203988169026743936 HD 208960 BD BD+60 2321
Distance 675.68 Distance ly 2204.07
 
 
WDS 21579+6101 MLR 17 AB : NOTES
 
 
discov_num notes refcode
MLR 17 Primary is the Cepheid IR Cep. Evs2016a
 
 
REFERENCES
 
 
refcode metd author reference
Evs2016a H3 - Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Tingle, E., Karovska, M., & 2016AJ....151..129E
Evs2016a Pillitteri, I.
Evs2016a AJ 151, 129, 2016
Evs2016a (some theta values replaced with more precise values from Evs2016b) 2016AJ....151..108E
 
 
DISCOVERER
 
 
discov author
EVS Udalski, A. & Evans, N.R.
EVS Evans, N.R., Schaefer, G.H., Bond, H., Bono, G., Karovska, M., Nelan, E.,
EVS Sasselov, D., & Mason, B.D.
EVS Evans, N.R., Pillitteri, I., Wolk, S., Karovska, M., Tingle, E., Guinan, E.,
EVS Engle, S., Bond, H.E., Schaefer, G.H., & Mason, B.D.
EVS Evans, N.R., Karovska, M., Bond, H.E., Schaefer, G.H., Sahu, K.C., Mack, J.,
EVS Nelan, E.P., Gallenne, A. & Tingle, E.D.
EVS Evans, N.R., Pillitteri, I., Molnar, L., Szabados, L., Plachy, E., Szabo, R.,
EVS Engle, S., Guinan, E., Wolk, S., Gunther, H.M., Neilson, H., Marengo, M., Matthews,
EVS AJ 159, 121, 2020
EVS Evans, N.R., Gunther, H.M., Bond, H.E., Schaefer, G.H., Mason, B.D., Karovska, M.,
EVS Tingle, E., Wolk, S., Engle, S., Guinan, E., Pillitteri, I., Proffitt, C.,
EVS ApJ 905, 81, 2020
EVS Evans, N.R., Gallenne, A., Kervella, P., Gunther, H.M., Kuraszkiewicz, J.,
EVS Anderson, R.I., Proffitt, C., Merand, A., Trahin, B., Viviani, G. & Shetye, S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
21579+6101 MLR 17 AB 1992 13 22 0.2 8.30 8.30 G0 +60 2321 215751.93+610107.9

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

 
 
WDS 21579+6101 MLR 17 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21579+6101 MLR 17 AB : MEASURES
 
 
No records found.

 
 
WDS 21579+6101 : VIRTUAL EYEPIECE
 
 

21579+6101 MLR 17A mag 8.3 Sp G0 21579+6101 MLR 17B sep 0.1 P.A. 22.00 mag 8.3 21579+6101 EVS 45C sep 18.2 P.A. 42.20 mag 17.62 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21579+6101 : ALADIN DSS IMAGE @ 21h 57m 51.93s +61° 01' 07.9"
 
 
 
 
WDS 21579+6101 MLR 17 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21579+6101 MLR 17AB distance=0' 21573+6118 BU 275 distance=18' 21597+6049 BVD 339 distance=19' 22005+6054 MLR 510AB distance=21' 22005+6054 MLR 510AC distance=21' 22005+6054 MLR 510AD distance=21' 21556+6040 MLR 509 distance=27' 21598+6033 A 779 distance=32' 22023+6106 BU 695AB distance=33' 22023+6106 WAK 5AC distance=33' 21564+6029 TDT3250 distance=35' 22033+6051 STF2860AB distance=41' 22033+6051 STF2860AC distance=41' 22014+6133 HDS3125 distance=42' 21543+6134 ES 1922 distance=43' 21576+6144 MLR 63 distance=44' 22005+6145 TDT3286 distance=48' 22049+6100 BU 474 distance=51' 21518+6129 MRI 58BC distance=52' 21518+6129 STI1063AB distance=52' 22051+6109 STI1087 distance=53' 22047+6120 ARY 44AB distance=54' 22047+6120 ARY 44BC distance=54' 22020+6016 KPP4261BC distance=55' 21506+6024 STI1059 distance=58' 21599+6200 STI1079 distance=61' 21510+6137 STT 451 distance=62' 22061+6048 TDT3338 distance=62' 21549+6159 OSO 161AB distance=62' 21549+6159 OSO 161AC distance=62' 21549+6159 OSO 161AD distance=62' 21549+6159 OSO 161AE distance=62' 22065+6057 TDT3342 distance=63' 21502+6144 TDT3186 distance=70' 21569+5948 WAK 20 distance=71' 21559+5950 STT 537 distance=73' 22080+6100 HDS3143 distance=74' 22080+6107 STF2870 distance=74' 21565+5948 STT 458AB distance=75' 21565+5948 STT 458AC distance=75' 21564+6216 HU 973 distance=76' 22083+6054 STI1092 distance=77' 22084+6105 ES 1923BC distance=77' 22084+6105 ES 1923BD distance=77' 21485+6137 D 33AB distance=77' 21485+6137 MLB 176AC distance=77' 22084+6105 ES 1923AB distance=77' 22084+6105 ES 1923AD distance=77' 22071+6024 TDT3351 distance=78' 21521+6206 KR 56 distance=78' 21552+6217 TDT3239 distance=79' 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 21579+6101 MLR 17 AB 22 0.2 0
Show 21579+6101 EVS 45 AC 42 18.2 0
Show 21573+6118 BU 275 168 0.4 18
Show 21597+6049 BVD 339 246 13.3 19
Show 22005+6054 MLR 510 AB 304 0.8 21
Show 22005+6054 MLR 510 AC 93 3.0 21
Show 22005+6054 MLR 510 AD 99 3.7 21
Show 21556+6040 MLR 509 274 1.5 27
Show 21598+6033 A 779 247 0.2 32
Show 22023+6106 BU 695 AB 147 3.1 33
Show 22023+6106 WAK 5 AC 201 14.2 33
Show 21564+6029 TDT3250 293 0.5 35
Show 22033+6051 STF2860 AB 257 13.3 41
Show 22033+6051 STF2860 AC 279 27.4 41
Show 22014+6133 HDS3125 3 0.2 42
Show 21543+6134 ES 1922 164 4.6 43
Show 21576+6144 MLR 63 216 1.0 44
Show 22005+6145 TDT3286 342 2.9 48
Show 22049+6100 BU 474 342 17.9 51
Show 21518+6129 MRI 58 BC 98 2.6 52
Show 21518+6129 STI1063 AB 88 9.8 52
Show 22051+6109 STI1087 329 14.2 53
Show 22047+6120 ARY 44 AB 347 80.0 54
Show 22047+6120 ARY 44 BC 342 81.5 54
Show 22020+6016 KPP4261 BC 265 5.5 55
Show 21506+6024 STI1059 156 3.3 58
Show 21599+6200 STI1079 45 8.8 61
Show 21510+6137 STT 451 218 4.1 62
Show 22061+6048 TDT3338 185 0.4 62
Show 21549+6159 OSO 161 AB 335 14.8 62
Show 21549+6159 OSO 161 AC 36 21.8 62
Show 21549+6159 OSO 161 AD 19 19.8 62
Show 21549+6159 OSO 161 AE 315 20.4 62
Show 22065+6057 TDT3342 101 2.9 63
Show 21502+6144 TDT3186 153 0.8 70
Show 21569+5948 WAK 20 257 4.1 71
Show 21559+5950 STT 537 203 1.9 73
Show 22080+6100 HDS3143 307 0.2 74
Show 22080+6107 STF2870 271 5.8 74
Show 21565+5948 STT 458 AB 349 1.0 75
Show 21565+5948 STT 458 AC 23 21.5 75
Show 21564+6216 HU 973 124 0.2 76
Show 22083+6054 STI1092 45 15.8 77
Show 22084+6105 ES 1923 BC 232 3.9 77
Show 22084+6105 ES 1923 BD 88 15.7 77
Show 21485+6137 D 33 AB 132 3.5 77
Show 21485+6137 MLB 176 AC 277 10.6 77
Show 22084+6105 ES 1923 AB 339 25.8 77
Show 22084+6105 ES 1923 AD 14 25.3 77
Show 22071+6024 TDT3351 200 1.2 78
Show 21521+6206 KR 56 299 4.7 78

 
 
WDS 21579+6101 : COMPONENTS
 
 
  A B
B pa=22.0°
sep=0.15"
 
C pa=42.2°
sep=18.24"
pa=42.4°
sep=18.10"
 
 
21579+6101 A
 
 
Coord arcsec 2000 215751.93+610107.9 Mag 8.3 Spectral class G0 (yellow) PmRA -5.00
PmDE 0.0 SAO 19765 HIP 108426 Tycho2 4262-01009-1
HD 208960 BD BD+60 2321
Tycho2
Tycho2 4262-01009-1 Pflag RAmdeg 329.46636799 DEmdeg 61.01886983
PmRA -2.8 PmDE -0.1 E RAmdeg 5 E DEmdeg 6
E pmRA 1.3 E pmDE 1.5 EpRAm 1991.32 EpDEm 1991.27
Num 9 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.8
Q pmDE 0.6 BTmag 8.916 E BTmag 0.017 VTmag 7.934
E VTmag 0.011 Prox 999 TYC T HIP 108426
CCDM RAdeg 329.46638111 DEdeg 61.01886972 EpRA 1990 1.69
EpDE 1990 1.70 E RAdeg 5.3 E DEdeg 5.6 Posflg
Corr 0.0
SAO
SAO 19765 DelFlag RA1950 PmRA1950 -0.0017
DE1950 PmDE1950 -0.008 Vmag 7.5 SpType G0
Double code Source 2 CatNum 1430 DM BD+60 2321
DMcomp BDsup HD 208960 M HD 0
GC RA1950rad 5.74355084 DE1950rad 1.06080358 PmRA2000 -0.0014
PmDE2000 -0.013
Hipparcos
Catalog H HIP 108426 Proxy RAhms 21 57 51.93
DEdms +61 01 07.9 Vmag 7.85 VarFlag 2 R Vmag T
RAdeg 329.466 DEdeg 61.0189 AstroRef Plx 1.38
CCDM -5.78 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD BD BD+60 2321
CD CP Dm number +60 2321 VIred 0.87
SpType G0 R SpType Coord arcsec 2000 215751.93+610107.9
Hipparcos 2
HIP 108426 Sn 5 So 0 Nc 1
RArad 5.7502731551 DErad 1.0649802153 Plx 1.48 PmRA -4.87
PmDE -3.49 E RArad 0.33 E DErad 0.31 E Plx 0.37
E pmRA 0.46 E pmDE 0.42 Hpmag E Hpmag 0.0178
SHp 0.163 VA 1 BV 0.847 E BV 0.01
VI 0.86
CCDM
Ccdm 21579+6101 RComp Comp A Note1
Note2 Discov num DRAs -2.03 DDEs 8.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.3 Sp G0 PmNote *
PmRA 0 PmDE 4 Dm number +60 2321 Cat1 BD
Name2 +60 1430 Cat2 AGK2/3 HD 208960 M HD
ADS BDS M ADS BDS N IDS IDS 21548N6032A
HIC 108426
 
 
21579+6101 B
 
 
Coord arcsec 2000 215751.94+610108.0 Mag 8.3 Coordinate calculated yes
CCDM
Ccdm 21579+6101 RComp Comp B Note1
Note2 Discov num MLR 17 DRAs DDEs
R dRAs Year 1968 Theta 290 Rho 0.2
Obs 1 Vmag 8.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21548N6032B
HIC 108426
 
 
21579+6101 C
 
 
Coord arcsec 2000 215753.62+610121.4 Mag 17.62 Delta magnitude 9.32 Coordinate calculated yes