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Doubles in session


Current system
21397+5815
MLB 90 AC


Nearby doubles
33' : 21436+5827
LDS4905

33' : 21391+5742
PET 8

35' : 21434+5834
MLB 91

35' : 21385+5741
PET 7

38' : 21366+5842
BU 371

40' : 21380+5738
PET 6

41' : 21404+5735
STF2819

41' : 21418+5737
HJ 3055

43' : 21426+5851
SKF2029

44' : 21394+5732
PET 9

44' : 21435+5847
BU 690AB
Garnet star

44' : 21429+5738
VBS 35

45' : 21377+5734
D 25AB

46' : 21364+5738
PET 4

46' : 21395+5729
STI2582

46' : 21390+5729
BU 1143AB

48' : 21373+5731
PET 5

49' : 21413+5728
TDS1141

50' : 21373+5900
HJ 1677AB

56' : 21360+5728
STF2813

58' : 21462+5748
HJ 1694AB

60' : 21328+5839
HJ 1659AB

62' : 21405+5713
PET 10

64' : 21335+5857
MLR 437

66' : 21346+5906
STF2810

70' : 21314+5754
ES 1800



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.

21397+5815 MLB 90 AC

 
 
21h 39m 44.44s +58° 14' 44.0" P.A. 136.00 sep 29.7 mag 9.16,11.34 Sp B5 dist. 469.48 pc (1531.44 l.y.)
 
 
Coord 2000 21397+5815 Discov num MLB  90 Comp AC Coord arcsec 2000 21 39 44.44 +58 14 44.0
Date first 1905 Date last 2016 Obs 10
Pa first 137 Pa last 135.7 P.A. Now (θ) 135.7°
Sep first 29.2 Sep last 29.744 Sep. Now (ρ) 29.744"
Mag pri 9.16 Mag sec 11.34 delta mag (ΔM) 2.18 Spectral class B5 (blue-white)
Pri motion ra -002 Sec motion ra +003
Pri motion dec -006 Sec motion dec -002
Notes
rPM=1.012
This double is not physical.
 
 
21397+5815 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 239731 33643 21 39 44 +58 14 44 MLB 90 AB 2019 24 37 8.2 9.16 11.98 2.82
Show 33643 21 39 44 +58 14 44 MLB 90 AC 2016 10 136 29.7 9.16 11.34 2.18 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus SAO 33643 HIP 106956 Tycho2 3979-01003-1
Gaia DR2 2178573580536000384 HD 239731 BD BD+57 2360 Distance 469.48
Distance ly 1531.44
 
 
WDS 21397+5815 MLB 90 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mlb1918 Mb - Milburn, W. (Espin, T.E.) 1918MNRAS..78..189E
Mlb1918 MNRAS 78, 189, 1918 (MLB 1 - 35; measures by Espin)
Mlb1919 Mb - Milburn, W. (Espin, T.E.) 1919MNRAS..79..211E
Mlb1919 MNRAS 79, 211, 1919 (MLB 36 - 106; measures by Espin)
Mlb1920 Mb - Milburn, W. 1920MNRAS..80..329M
Mlb1920 MNRAS 80, 329, 1920 (MLB 107 - 149)
Mlb1921 Mb - Milburn, W. 1921MNRAS..81..232E
Mlb1921 MNRAS 81, 232, 1921 (MLB 150 - 182)
Mlb1922 Mb j Milburn, W. (Espin, T.E.) 1922MNRAS..82..187E
Mlb1922 MNRAS 82, 187, 1922 (MLB 183 - 241; measures by Espin)
Mlb1923 Mb - Milburn, W. 1923MNRAS..83..154E
Mlb1923 MNRAS 83, 154, 1923 (MLB 242 - 275)
Mlb1924 Mb - Milburn, W. 1924MNRAS..84..162E
Mlb1924 MNRAS 84, 162, 1924 (MLB 276 - 322)
Mlb1925 Mb j Milburn, W. 1925MNRAS..85..276E
Mlb1925 MNRAS 85, 276, 1925 (MLB 323 - 376)
Mlb1926 Mb - Milburn, W. 1926MNRAS..86..131E
Mlb1926 MNRAS 86, 131, 1926 (MLB 377 - 440)
Mlb1927 Mb j Milburn, W. 1927MNRAS..87..215E
Mlb1927 +Po MNRAS 87, 215, 1927 (MLB 441 - 510)
Mlb1928 Mb - Milburn, W. 1928MNRAS..88..185E
Mlb1928 MNRAS 88, 185, 1928 (MLB 511 - 551)
Mlb1929 Mb - Milburn, W. 1929MNRAS..89..268E
Mlb1929 MNRAS 89, 268, 1929 (MLB 552 - 591)
Mlb1930 Mb - Milburn, W. 1930MNRAS..90..317E
Mlb1930 MNRAS 90, 317, 1930 (MLB 592 - 630)
Mlb1931 Mb j Milburn, W. 1931MNRAS..91..294E
Mlb1931 MNRAS 91, 294, 1931 (MLB 631 - 673)
Mlb1932 Ma - Milburn, W. 1932MNRAS..92..214E
Mlb1932 +Mb MNRAS 92, 214, 1932 (MLB 674 - 732)
Mlb1932B Ma - Milburn, W. 1932QB821.A43......
Mlb1932B cited by ADS (Aitken Double Star Cat., 1932)
Mlb1933 Ma j Milburn, W. 1933MNRAS..93..192E
Mlb1933 +Mb MNRAS 93, 192, 1933 (MLB 733 - 806)
Mlb1934 Mb j Milburn, W. 1934MNRAS..94..255M
Mlb1934 MNRAS 94, 255, 1934 (MLB 807 - 912)
Mlb1935 Mb j Milburn, W. 1935MNRAS..95..298M
Mlb1935 MNRAS 95, 298, 1935 (MLB 913 - 969)
Mlb1936 Mb - Milburn, W. 1936MNRAS..96..266M
Mlb1936 MNRAS 96, 266, 1936 (MLB 970 - 997)
Mlb1937 Ma - Milburn, W. 1937MNRAS..97..222M
Mlb1937 +Mb MNRAS 97, 222, 1937 (MLB 998 - 1025)
Mlb1938 Ma - Milburn, W. 1938MNRAS..98..223M
Mlb1938 +Mb MNRAS 98, 223, 1938 (MLB 1026 - 1032)
Mlb1939 Mb - Milburn, W. 1939MNRAS..99..278M
Mlb1939 MNRAS 99, 278, 1939 (MLB 1033 - 1051)
Mlb9999 Mb - Milburn, W. ...................
Mlb9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21397+5815 MLB 90 AC 2000 1 137 29.4 9.16 11.34 B5 D 213944.44+581444.0
21397+5815 MLB 90 AC 2003 4 137 29.5 9.16 11.34 B5 D 213944.44+581444.0
21397+5815 MLB 90 AC 2016 6 136 29.7 9.16 11.34 B5 213944.44+581444.0

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

 
 
WDS 21397+5815 MLB 90 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21397+5815 MLB 90 AC : MEASURES
 
 
No records found.

 
 
WDS 21397+5815 : VIRTUAL EYEPIECE
 
 

21397+5815 MLB 90A mag 9.16 Sp B5 21397+5815 MLB 90B sep 7.1 P.A. 21.30 mag 11.98 21397+5815 MLB 90C sep 23.9 P.A. 152.80 mag 11.34 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 21397+5815 : ALADIN DSS IMAGE @ 21h 39m 44.44s +58° 14' 44.0"
 
 
 
 
WDS 21397+5815 MLB 90 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21397+5815 MLB 90AC distance=0' 21436+5827 LDS4905 distance=33' 21391+5742 PET 8 distance=33' 21434+5834 MLB 91 distance=35' 21385+5741 PET 7 distance=35' 21366+5842 BU 371 distance=38' 21380+5738 PET 6 distance=40' 21404+5735 STF2819 distance=41' 21418+5737 HJ 3055 distance=41' 21426+5851 SKF2029 distance=43' 21394+5732 PET 9 distance=44' 21435+5847 BU 690AB (Garnet star) distance=44' 21435+5847 BU 690AC (Garnet star) distance=44' 21435+5847 SMR 41AD (Garnet star) distance=44' 21435+5847 SMR 41AE (Garnet star) distance=44' 21435+5847 SMR 41AF (Garnet star) distance=44' 21435+5847 SMR 41AG (Garnet star) distance=44' 21429+5738 VBS 35 distance=44' 21377+5734 D 25AB distance=45' 21377+5734 STF2815AB,C distance=45' 21364+5738 PET 4 distance=46' 21390+5729 FLE 3DE distance=46' 21395+5729 STI2582 distance=46' 21390+5729 MIU 2Aa,Ab distance=46' 21390+5729 BU 1143AB distance=46' 21390+5729 STF2816AC distance=46' 21390+5729 STF2816AD distance=46' 21390+5729 GUI 36CD distance=46' 21373+5731 PET 5 distance=48' 21413+5728 TDS1141 distance=49' 21373+5900 HJ 1677AB distance=50' 21360+5728 STF2813 distance=56' 21462+5748 ES 36BC distance=58' 21462+5748 HJ 1694AB distance=58' 21462+5748 ABH 151AD distance=58' 21462+5748 ABH 151AE distance=58' 21328+5839 HJ 1659AB distance=60' 21328+5839 HJ 1659AC distance=60' 21405+5713 PET 10 distance=62' 21335+5857 MLR 437 distance=64' 21346+5906 STF2810 distance=66' 21314+5754 ES 1800 distance=70' 21478+5743 FOX 263 distance=72' 21428+5702 TVB 13 distance=77' 21384+5658 LEE 1AB distance=78' 21384+5658 ES 140AC distance=78' 21377+5659 MLR 583 distance=78' 21494+5830 HJ 3063 distance=78' 21495+5834 STI2588 distance=80' 21302+5743 TDT3000 distance=83' 21483+5727 TDT3163 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 21397+5815 MLB 90 AB 37 8.2
Show 21397+5815 MLB 90 AC 136 29.7
Show 21436+5827 LDS4905 227 41.4 33
Show 21391+5742 PET 8 218 1.4 33
Show 21434+5834 MLB 91 70 4.6 35
Show 21385+5741 PET 7 256 0.5 35
Show 21366+5842 BU 371 3 8.7 38
Show 21380+5738 PET 6 118 1.5 40
Show 21404+5735 STF2819 58 12.7 41
Show 21418+5737 HJ 3055 158 7.2 41
Show 21426+5851 SKF2029 207 91.2 43
Show 21394+5732 PET 9 42 1.2 44
Show Garnet star 21435+5847 BU 690 AB 263 19.5 44
Show Garnet star 21435+5847 BU 690 AC 297 42.4 44
Show Garnet star 21435+5847 SMR 41 AD 192 62.5 44
Show Garnet star 21435+5847 SMR 41 AE 349 45.1 44
Show Garnet star 21435+5847 SMR 41 AF 17 75.9 44
Show Garnet star 21435+5847 SMR 41 AG 33 107.3 44
Show 21429+5738 VBS 35 253 6.0 44
Show 21377+5734 D 25 AB 164 1.0 45
Show 21377+5734 STF2815 AB,C 81 7.5 45
Show 21364+5738 PET 4 191 0.4 46
Show 21390+5729 FLE 3 DE 351 55.2 46
Show 21395+5729 STI2582 187 20.9 46
Show 21390+5729 MIU 2 Aa,Ab 196 0.1 46
Show 21390+5729 BU 1143 AB 319 1.8 46
Show 21390+5729 STF2816 AC 120 11.8 46
Show 21390+5729 STF2816 AD 339 20.6 46
Show 21390+5729 GUI 36 CD 324 30.6 46
Show 21373+5731 PET 5 76 0.8 48
Show 21413+5728 TDS1141 29 0.9 49
Show 21373+5900 HJ 1677 AB 128 16.1 50
Show 21360+5728 STF2813 272 10.2 56
Show 21462+5748 ES 36 BC 138 7.1 58
Show 21462+5748 HJ 1694 AB 13 19.9 58
Show 21462+5748 ABH 151 AD 50 51.0 58
Show 21462+5748 ABH 151 AE 277 87.8 58
Show 21328+5839 HJ 1659 AB 287 7.8 60
Show 21328+5839 HJ 1659 AC 68 19.3 60
Show 21405+5713 PET 10 15 0.1 62
Show 21335+5857 MLR 437 302 0.5 64
Show 21346+5906 STF2810 290 16.8 66
Show 21314+5754 ES 1800 86 3.4 70
Show 21478+5743 FOX 263 300 16.7 72
Show 21428+5702 TVB 13 358 11.9 77
Show 21384+5658 LEE 1 AB 186 6.7 78
Show 21384+5658 ES 140 AC 341 12.3 78
Show 21377+5659 MLR 583 15 0.8 78
Show 21494+5830 HJ 3063 64 11.5 78
Show 21495+5834 STI2588 112 4.9 80
Show 21302+5743 TDT3000 164 0.5 83

 
 
WDS 21397+5815 : COMPONENTS
 
 
  A B
B pa=21.3°
sep=7.06"
 
C pa=152.8°
sep=23.93"
pa=163.3°
sep=29.10"
 
 
21397+5815 A
 
 
Name HD 239731 Coord arcsec 2000 213944.44+581444.0 Mag 9.16 Spectral class B5 (blue-white)
PmRA -2.00 PmDE -6.0 SAO 33643 HIP 106956
Tycho2 3979-01003-1 HD 239731 BD BD+57 2360
Tycho2
Tycho2 3979-01003-1 Pflag RAmdeg 324.93514766 DEmdeg 58.24555748
PmRA -2.1 PmDE -2.2 E RAmdeg 11 E DEmdeg 10
E pmRA 1.4 E pmDE 1.5 EpRAm 1990.53 EpDEm 1990.87
Num 8 Q RAmdeg 1.1 Q DEmdeg 0.7 Q pmRA 1.1
Q pmDE 0.7 BTmag 9.447 E BTmag 0.020 VTmag 9.159
E VTmag 0.018 Prox 81 TYC T HIP 106956
CCDM A RAdeg 324.93515750 DEdeg 58.24556250 EpRA 1990 1.60
EpDE 1990 1.62 E RAdeg 10.5 E DEdeg 10.4 Posflg
Corr 0.1
SAO
SAO 33643 DelFlag RA1950 PmRA1950 -0.0009
DE1950 PmDE1950 0.001 Vmag 8.8 SpType B5
Double code Source 38 CatNum 12415 DM BD+57 2360
DMcomp BDsup HD 239731 M HD 0
GC RA1950rad 5.66451648 DE1950rad 1.0126107 PmRA2000 -0.0006
PmDE2000 -0.003
Hipparcos
Catalog H HIP 106956 Proxy H RAhms 21 39 44.44
DEdms +58 14 44.0 Vmag 9.14 VarFlag R Vmag G
RAdeg 324.935 DEdeg 58.2456 AstroRef A Plx 2.15
CCDM 21397+5815 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 37 Rho 8.128 HD 239731 BD BD+57 2360
CD CP Dm number +57 2360 VIred 0.28
SpType B5 R SpType Coord arcsec 2000 213944.44+581444.0
Hipparcos 2
HIP 106956 Sn 15 So 3 Nc 2
RArad 5.6711883973 DErad 1.016576899 Plx 2.13 PmRA -2.28
PmDE -2.55 E RArad 0.97 E DErad 0.97 E Plx 1.21
E pmRA 1.17 E pmDE 1.23 Hpmag 9.1367 E Hpmag 0.0025
SHp 0.02 VA 0 BV 0.212 E BV 0.4
VI 0.28
CCDM
Ccdm 21397+5815 RComp Comp A Note1
Note2 Discov num DRAs 2.41 DDEs -15.7
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.0 Sp B5 PmNote *
PmRA -11 PmDE 5 Dm number +57 2360 Cat1 BD
Name2 +58 1372 Cat2 AGK2/3 HD 239731 M HD
ADS BDS A15205 M ADS BDS N IDS IDS 21367N5747A
HIC 106956
 
 
21397+5815 B
 
 
Coord arcsec 2000 213944.76+581450.6 Mag 11.98 PmRA -6.00 PmDE -4.0
Calc delta mag 2.82 Calc coord yes
CCDM
Ccdm 21397+5815 RComp Comp B Note1
Note2 Discov num MLB 90 DRAs DDEs
R dRAs Year 1905 Theta 042 Rho 8.5
Obs 2 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15205 M ADS BDS N IDS IDS 21367N5747B
HIC 106956
 
 
21397+5815 C
 
 
Coord arcsec 2000 213945.82+581422.7 Mag 11.34 PmRA 3.00 PmDE -2.0
Tycho2 3979-00832-1 Calc delta mag 2.18 Calc coord yes
Tycho2
Tycho2 3979-00832-1 Pflag RAmdeg 324.94561467 DEmdeg 58.23952079
PmRA -4.4 PmDE -8.2 E RAmdeg 65 E DEmdeg 63
E pmRA 4.9 E pmDE 4.9 EpRAm 1989.50 EpDEm 1989.63
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 11.730 E BTmag 0.092 VTmag 11.341
E VTmag 0.104 Prox 294 TYC HIP
CCDM RAdeg 324.94563417 DEdeg 58.23953972 EpRA 1990 1.62
EpDE 1990 1.65 E RAdeg 65.5 E DEdeg 63.5 Posflg
Corr 0.0
CCDM
Ccdm 21397+5815 RComp Comp C Note1
Note2 Discov num MLB 90 DRAs DDEs
R dRAs Year 1918 Theta 138 Rho
Obs 1 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15205 M ADS BDS N IDS IDS 21367N5747C
HIC 106956