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Current system
21078+2945
MLB 715 AB


Nearby doubles
19' : 21070+3001
J 1319

22' : 21065+2933
AG 413

23' : 21075+2924
TDT2769

24' : 21077+3009
KPP1031

30' : 21091+2922
COU1332

30' : 21086+3012
STF2762AB

30' : 21058+2931
LDS2938

33' : 21088+2916
MLB 487

34' : 21083+2913
COU1331

37' : 21077+3022
UC 256

43' : 21092+3023
CBL 90

43' : 21057+2912
GRV 416

46' : 21109+2925
BAG 29

50' : 21064+3031
TDT2751

51' : 21101+3027
KPP4225

53' : 21118+2943
HAU 27

53' : 21074+3038
TDT2767

53' : 21103+3027
TDT2801

54' : 21055+2901
MLB 536

59' : 21094+2850
DOB9002

61' : 21046+2902
TDT2726

64' : 21073+3048
TDT2766

64' : 21031+2929
OSO 139AB

64' : 21098+2915
DU 3

65' : 21056+3043
TDT2737

66' : 21129+2944
MLB 667



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.

21078+2945 MLB 715 AB

 
 
21h 07m 48.34s +29° 45' 22.2" P.A. 40.00 sep 5.5 mag 9.78,13.61 Sp K8 dist. 32.71 pc (106.7 l.y.)
 
 
Coord 2000 21078+2945 Discov num MLB 715 Comp AB Coord arcsec 2000 21 07 48.34 +29 45 22.2
Date first 1931 Date last 2015 Obs 7
Pa first 36 Pa last 40.4 P.A. Now (θ) 40.4°
Sep first 3.6 Sep last 5.474 Sep. Now (ρ) 5.474"
Mag pri 9.78 Mag sec 13.61 delta mag (ΔM) 3.83 Spectral class K8 (yellow-orange)
Pri motion ra +085 Sec motion ra +088
Pri motion dec -247 Sec motion dec -248
Notes V (Proper motion indicates physical)
rPM=0.012 (< 0.3, Physical double)
This double is physical.
 
 
21078+2945 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 07 48 +29 45 22 MLB 715 AB 2015 7 40 5.5 9.78 13.61 3.83 <===
Show 21 07 48 +29 45 22 MLB 715 AC 2002 3 336 25.3 9.78 14.60 4.82
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus HIP 104304 Tycho2 2185-00358-1 Gaia DR2 1852271205513439360
BD BD+29 4321 Distance 32.71 Distance ly 106.7
 
 
WDS 21078+2945 MLB 715 AB : 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
21078+2945 MLB 715 AB 1991 3 10 4.8 9.78 13.61 K8 V 210748.28+294524.4
21078+2945 MLB 715 AB 1998 4 39 5.2 9.78 13.61 K8 V 210748.28+294524.4
21078+2945 MLB 715 AB 2010 5 46 4.8 9.78 13.61 K8 V 210748.34+294522.2
21078+2945 MLB 715 AB 2015 5 40 5.5 9.78 13.61 K8 V 210748.34+294522.2

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

 
 
WDS 21078+2945 MLB 715 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21078+2945 MLB 715 AB : MEASURES
 
 
No records found.

 
 
WDS 21078+2945 : VIRTUAL EYEPIECE
 
 

21078+2945 MLB 715A mag 9.78 Sp K8 21078+2945 MLB 715B sep 5.2 P.A. 36.50 mag 13.61 21078+2945 MLB 715C sep 24.8 P.A. 338.80 mag 14.6 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 21078+2945 : ALADIN DSS IMAGE @ 21h 07m 48.34s +29° 45' 22.2"
 
 
 
 
WDS 21078+2945 MLB 715 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21078+2945 MLB 715AB distance=0' 21070+3001 J 1319 distance=19' 21065+2933 AG 413 distance=22' 21075+2924 TDT2769 distance=23' 21077+3009 KPP1031 distance=24' 21091+2922 COU1332 distance=30' 21086+3012 STF2762AB distance=30' 21086+3012 STF2762AC distance=30' 21086+3012 STF2762AD distance=30' 21058+2931 LDS2938 distance=30' 21088+2916 MLB 487 distance=33' 21083+2913 COU1331 distance=34' 21077+3022 UC 256 distance=37' 21092+3023 CBL 90 distance=43' 21057+2912 GRV 416 distance=43' 21109+2925 BAG 29 distance=46' 21064+3031 TDT2751 distance=50' 21101+3027 KPP4225 distance=51' 21118+2943 HAU 27 distance=53' 21074+3038 TDT2767 distance=53' 21103+3027 TDT2801 distance=53' 21055+2901 MLB 536 distance=54' 21094+2850 DOB9002 distance=59' 21046+2902 TDT2726 distance=61' 21073+3048 TDT2766 distance=64' 21031+2929 OSO 139AB distance=64' 21031+2929 OSO 139AC distance=64' 21031+2929 OSO 139AD distance=64' 21098+2915 DU 3 distance=64' 21056+3043 TDT2737 distance=65' 21129+2944 MLB 667 distance=66' 21061+2843 LDS2939 distance=67' 21115+3033 ALD 5 distance=68' 21035+2906 BU 445AB distance=70' 21035+2906 BU 445AC distance=70' 21035+2906 BU 445AD distance=70' 21035+2906 BU 445AE distance=70' 21035+2906 ARN 21AF distance=70' 21025+2958 COU1181 distance=70' 21034+3025 SMA 123 distance=70' 21129+3014 BAS 7Aa,Ab distance=73' 21129+3014 BUP 227AB distance=73' 21129+3014 BUP 227AC distance=73' 21129+3014 BUP 227AD distance=73' 21129+3014 FYM 141AE distance=73' 21129+3014 FYM 141AF distance=73' 21129+3014 FYM 141AG distance=73' 21072+2833 COU 528 distance=73' 21117+3038 J 1235 distance=74' 21088+3102 ES 375 distance=78' 21017+2938 COU1180AB distance=80' 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 21078+2945 MLB 715 AB 40 5.5
Show 21078+2945 MLB 715 AC 336 25.3
Show 21070+3001 J 1319 206 1.7 19
Show 21065+2933 AG 413 107 2.7 22
Show 21075+2924 TDT2769 157 1.1 23
Show 21077+3009 KPP1031 334 8.3 24
Show 21091+2922 COU1332 20 0.2 30
Show 21086+3012 STF2762 AB 303 3.3 30
Show 21086+3012 STF2762 AC 229 59.3 30
Show 21086+3012 STF2762 AD 66 73.1 30
Show 21058+2931 LDS2938 247 23.5 30
Show 21088+2916 MLB 487 142 4.3 33
Show 21083+2913 COU1331 37 0.3 34
Show 21077+3022 UC 256 67 48.1 37
Show 21092+3023 CBL 90 113 54.5 43
Show 21057+2912 GRV 416 137 38.2 43
Show 21109+2925 BAG 29 174 0.2 46
Show 21064+3031 TDT2751 148 2.4 50
Show 21101+3027 KPP4225 236 2.2 51
Show 21118+2943 HAU 27 297 50.0 53
Show 21074+3038 TDT2767 173 10.5 53
Show 21103+3027 TDT2801 237 0.9 53
Show 21055+2901 MLB 536 236 5.4 54
Show 21094+2850 DOB9002 104 18.6 59
Show 21046+2902 TDT2726 311 0.6 61
Show 21073+3048 TDT2766 193 1.9 64
Show 21031+2929 OSO 139 AB 82 15.8 64
Show 21031+2929 OSO 139 AC 308 18.8 64
Show 21031+2929 OSO 139 AD 110 26.3 64
Show 21098+2915 DU 3 15 6.1 64
Show 21056+3043 TDT2737 322 6.3 65
Show 21129+2944 MLB 667 30 2.4 66
Show 21061+2843 LDS2939 320 5.9 67
Show 21115+3033 ALD 5 153 3.7 68
Show 21035+2906 BU 445 AB 109 4.7 70
Show 21035+2906 BU 445 AC 19 50.7 70
Show 21035+2906 BU 445 AD 317 87.3 70
Show 21035+2906 BU 445 AE 218 103.5 70
Show 21035+2906 ARN 21 AF 233 219.9 70
Show 21025+2958 COU1181 214 0.7 70
Show 21034+3025 SMA 123 145 7.2 70
Show 21129+3014 BAS 7 Aa,Ab 246 0.0 73
Show 21129+3014 BUP 227 AB 205 65.2 73
Show 21129+3014 BUP 227 AC 300 91.5 73
Show 21129+3014 BUP 227 AD 63 105.3 73
Show 21129+3014 FYM 141 AE 76 42.8 73
Show 21129+3014 FYM 141 AF 267 63.6 73
Show 21129+3014 FYM 141 AG 97 70.7 73
Show 21072+2833 COU 528 70 1.2 73
Show 21117+3038 J 1235 184 2.8 74
Show 21088+3102 ES 375 42 4.5 78

 
 
WDS 21078+2945 : COMPONENTS
 
 
  A B
B pa=36.5°
sep=5.18"
 
C pa=338.8°
sep=24.75"
pa=327.5°
sep=22.41"
 
 
21078+2945 A
 
 
Coord arcsec 2000 210748.34+294522.2 Mag 9.78 Spectral class K8 (yellow-orange) PmRA 85.00
PmDE -247.0 HIP 104304 Tycho2 2185-00358-1 BD BD+29 4321
Tycho2
Tycho2 2185-00358-1 Pflag RAmdeg 316.95140891 DEmdeg 29.75617897
PmRA 80.2 PmDE -251.2 E RAmdeg 17 E DEmdeg 19
E pmRA 1.7 E pmDE 1.6 EpRAm 1988.99 EpDEm 1988.86
Num 6 Q RAmdeg 2.1 Q DEmdeg 2.6 Q pmRA 1.9
Q pmDE 2.8 BTmag 10.915 E BTmag 0.044 VTmag 9.781
E VTmag 0.025 Prox 48 TYC T HIP 104304
CCDM A RAdeg 316.95118583 DEdeg 29.75675944 EpRA 1990 1.60
EpDE 1990 1.57 E RAdeg 18.7 E DEdeg 20.4 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 104304 Proxy H RAhms 21 07 48.28
DEdms +29 45 24.4 Vmag 9.6 VarFlag R Vmag G
RAdeg 316.951 DEdeg 29.7568 AstroRef A Plx 28.53
CCDM 21078+2945 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual C M HIP AB
Theta 10 Rho 4.776 HD BD BD+29 4321
CD CP Dm number +29 4321 VIred 1.18
SpType K8 R SpType Coord arcsec 2000 210748.28+294524.4
Hipparcos 2
HIP 104304 Sn 15 So 3 Nc 2
RArad 5.5318416345 DErad 0.5193539006 Plx 30.57 PmRA 86.78
PmDE -247.52 E RArad 1.35 E DErad 1.11 E Plx 1.96
E pmRA 1.78 E pmDE 1.13 Hpmag 9.7278 E Hpmag 0.0027
SHp 0.025 VA 0 BV 1.102 E BV 0.062
VI 1.18
CCDM
Ccdm 21078+2945 RComp Comp A Note1
Note2 Discov num DRAs 0.37 DDEs 22.1
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.3 Sp K8 PmNote *
PmRA 88 PmDE -246 Dm number +29 4321 Cat1 BD
Name2 +29 2495 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 21035N2922A
HIC 104304
 
 
21078+2945 B
 
 
Coord arcsec 2000 210748.58+294526.4 Mag 13.61 PmRA 88.00 PmDE -248.0
Calc delta mag 3.83 Calc coord yes
CCDM
Ccdm 21078+2945 RComp Comp B Note1
Note2 Discov num MLB 715 DRAs DDEs
R dRAs Year 1931 Theta 036 Rho 3.6
Obs 1 Vmag 13.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21035N2922B
HIC 104304
 
 
21078+2945 C
 
 
Coord arcsec 2000 210747.65+294545.3 Mag 14.6 PmRA -61.00 PmDE 66.0
Calc delta mag 4.82 Calc coord yes
CCDM
Ccdm 21078+2945 RComp Comp C Note1
Note2 Discov num MLB 715 DRAs DDEs
R dRAs Year 1931 Theta 332 Rho 4.8
Obs 1 Vmag 13.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21035N2922C
HIC 104304