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Doubles in session


Current system
21077+4851
ES 818 AB


Nearby doubles
25' : 21100+4901
HDS3016

27' : 21050+4855
CVE 25

28' : 21050+4858
TDT2728

29' : 21100+4908
FMR 233

31' : 21065+4823
BU 836AB

31' : 21047+4902
HU 590

34' : 21102+4828
KPP4226

36' : 21103+4828
TOI1343

37' : 21097+4820
COU2545

39' : 21089+4815
ARG 42AB

40' : 21117+4849
COU2651

43' : 21119+4845
STJ 110

45' : 21119+4838
HJ 1624

46' : 21100+4811
RAO 448

51' : 21127+4900
COU2652

57' : 21043+4806
ARN 51

58' : 21055+4758
ES 816

61' : 21129+4820
HJ 1625

62' : 21063+4751
BUP9010AB

66' : 21057+4748
BU 158AB

68' : 21072+4744
ES 817AB

71' : 21100+4745
A 761

74' : 21066+4739
ES 32

74' : 21005+4911
RAO 445

75' : 21142+4930
ES 819

76' : 21105+4742
BU 159AB



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.

21077+4851 ES 818 AB

 
 
21h 07m 40.09s +48° 51' 18.7" P.A. 39.00 sep 48.6 mag 7.83,12.72 Sp G5III dist. 221.73 pc (723.28 l.y.)
 
 
Coord 2000 21077+4851 Discov num ES  818 Comp AB Coord arcsec 2000 21 07 40.09 +48 51 18.7
Date first 1903 Date last 2015 Obs 5
Pa first 43 Pa last 39.4 P.A. Now (θ) 39.4°
Sep first 42.8 Sep last 48.649 Sep. Now (ρ) 48.649"
Mag pri 7.83 Mag sec 12.72 delta mag (ΔM) 4.89 Spectral class G5III (yellow)
Pri motion ra -004 Sec motion ra +006
Pri motion dec -036 Sec motion dec +013
Notes
rPM=1.381
This double is not physical.
 
 
21077+4851 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 50479 21 07 40 +48 51 19 ES 818 AB 2015 5 39 48.6 7.83 12.72 4.89 <===
Show 21 07 43 +48 51 55 ES 818 BC 2015 2 137 2.2 11.00 12.00 1.00
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V1720 Cyg Constellation Cygnus SAO 50479 HIP 104290
Tycho2 3596-01240-1 Gaia DR2 2165582988083680640 HD 201416 BD BD+48 3289
Distance 221.73 Distance ly 723.28
 
 
WDS 21077+4851 ES 818 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Es_1901 Mb - Espin, T.E. 1901AN....155..321E
Es_1901 AN 155, 321, 1901 (ES 1 - 39)
Es_1902a Ma - Espin, T.E. 1902AN....158..241E
Es_1902a +Mb AN 158, 241, 1902 (ES 40 - 112)
Es_1902b Mb - Espin, T.E. 1902MNRAS..62..528E
Es_1902b MNRAS 62, 528, 1902
Es_1902c Mb j Espin, T.E. 1902MNRAS..62..402E
Es_1902c MNRAS 62, 402, 1902
Es_1903 Mb - Espin, T.E. 1903MNRAS..63..172E
Es_1903 MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a - Espin, T.E. 1904MNRAS..64..238E
Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E
Es_1904b Mb - Espin, T.E. 1904MNRAS..64..675E
Es_1904b MNRAS 64, 675, 1904
Es_1905 Mb - Espin, T.E. 1905MNRAS..65..710E
Es_1905 MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a Mb - Espin, T.E. 1906MNRAS..66..141E
Es_1906a MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b Mb - Espin, T.E. 1906MNRAS..66..430E
Es_1906b MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C Mb - Espin, T.E. 1906QB821.B972.....
Es_1906C cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D Mb - Espin, T.E. 1906MmRAS..56....1L
Es_1906D cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a Mb j Espin, T.E. 1907MNRAS..67..190E
Es_1907a MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b Mb - Espin, T.E. 1907MNRAS..67..495E
Es_1907b MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a Mb j Espin, T.E. 1908MNRAS..68..202E
Es_1908a MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b Mb - Espin, T.E. 1908MNRAS..68..523E
Es_1908b MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c - Espin, T.E. 1908JRASC...2..248E
Es_1908c JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909) 1909MNRAS..69..218E
Es_1909a Mb j Espin, T.E. 1909MNRAS..69..218E
Es_1909a MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b Mb j Espin, T.E. 1909MNRAS..69..604E
Es_1909b MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a Mb - Espin, T.E. 1910MNRAS..70..237E
Es_1910a MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b Mb - Espin, T.E. 1910MNRAS..70..541E
Es_1910b MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911 Mb - Espin, T.E. 1911MNRAS..71..217E
Es_1911 MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912 Mb - Espin, T.E. 1912MNRAS..72..191E
Es_1912 MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913 Mb j Espin, T.E. 1913MNRAS..73..162E
Es_1913 MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914 Mb j Espin, T.E. 1914MNRAS..74..244E
Es_1914 MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a Mb - Espin, T.E. 1915MNRAS..75..203E
Es_1915a MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b Mb - Espin, T.E. 1915MNRAS..75..555E
Es_1915b MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c Mb - Espin, T.E. 1915MNRAS..76..210E
Es_1915c MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917 Mb - Espin, T.E. 1917MNRAS..77..236E
Es_1917 MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918 Mb j Espin, T.E. 1918MNRAS..78..189E
Es_1918 MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919 Mb - Espin, T.E. 1919MNRAS..79..211E
Es_1919 MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920 Mb - Espin, T.E. 1920MNRAS..80..329E
Es_1920 MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921 Mb j Espin, T.E. 1921MNRAS..81..232E
Es_1921 MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922 Mb - Espin, T.E. 1922MNRAS..82..187E
Es_1922 MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923 Mb - Espin, T.E. 1923MNRAS..83..154E
Es_1923 MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924 Mb - Espin, T.E. 1924MNRAS..84..162E
Es_1924 MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a Mb - Espin, T.E. 1925MNRAS..85..276E
Es_1925a MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b Mb - Espin, T.E. 1925MNRAS..86...79E
Es_1925b MNRAS 86, 79, 1925
Es_1926 Mb - Espin, T.E. 1926MNRAS..86..131E
Es_1926 MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927 Mb - Espin, T.E. 1927MNRAS..87..215E
Es_1927 MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928 Mb - Espin, T.E. 1928MNRAS..88..185E
Es_1928 MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929 Mb - Espin, T.E. 1929MNRAS..89..268E
Es_1929 MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930 Mb - Espin, T.E. 1930MNRAS..90..317E
Es_1930 MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931 Mb - Espin, T.E. 1931MNRAS..91..294E
Es_1931 MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a Mb - Espin, T.E. 1932MNRAS..92..214E
Es_1932a MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B Mb - Espin, T.E. 1932QB821.A43......
Es_1932B cited in ADS (Aitken Double Star Cat.), 1932
Es_1933 Mb - Espin, T.E. 1933MNRAS..93..192E
Es_1933 MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A Mb - Espin, T.E. 1937AnLei..18....1S
Es_1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21077+4851 ES 818 AB 2000 3 40 47.9 7.78 10.80 G5III D 210740.10+485119.0
21077+4851 ES 818 AB 2003 4 40 48.3 7.80 11.00 G5III D 210740.09+485118.7
21077+4851 ES 818 AB 2015 5 39 48.6 7.83 12.72 G5III 210740.09+485118.7

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

 
 
WDS 21077+4851 ES 818 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21077+4851 ES 818 AB : MEASURES
 
 
No records found.

 
 
WDS 21077+4851 : VIRTUAL EYEPIECE
 
 

21077+4851 ES 818A mag 7.83 Sp G5III 21077+4851 ES 818B sep 48.0 P.A. 40.20 mag 11 21077+4851 ES 818C sep 47.5 P.A. 42.40 mag 12 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 21077+4851 : ALADIN DSS IMAGE @ 21h 07m 40.09s +48° 51' 18.7"
 
 
 
 
WDS 21077+4851 ES 818 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21077+4851 ES 818AB distance=0' 21077+4851 ES 818BC distance=1' 21100+4901 HDS3016 distance=25' 21050+4855 CVE 25 distance=27' 21050+4858 TDT2728 distance=28' 21100+4908 FMR 233 distance=29' 21065+4823 BU 836AB distance=31' 21065+4823 BU 836AB,C distance=31' 21065+4823 BU 836CD distance=31' 21047+4902 HU 590 distance=31' 21102+4828 KPP4226 distance=34' 21103+4828 TOI1343 distance=36' 21097+4820 COU2545 distance=37' 21089+4815 ARG 42BC distance=39' 21089+4815 ARG 42AB distance=39' 21089+4815 ARG 42AC distance=39' 21117+4849 COU2651 distance=40' 21119+4845 STJ 110 distance=43' 21119+4838 HJ 1624 distance=45' 21100+4811 RAO 448 distance=46' 21127+4900 COU2652 distance=51' 21043+4806 ARN 51 distance=57' 21055+4758 ES 816 distance=58' 21129+4820 HJ 1625 distance=61' 21063+4751 BUP9010AB distance=62' 21063+4751 BUP9010AC distance=62' 21063+4751 BUP9010AD distance=62' 21057+4748 BU 158AB distance=66' 21072+4744 ES 817AB distance=68' 21072+4744 ES 817AC distance=68' 21072+4744 ES 817AD distance=68' 21100+4745 A 761 distance=71' 21066+4739 ES 32 distance=74' 21005+4911 RAO 445 distance=74' 21142+4930 ES 819 distance=75' 21001+4841 STT 425CD distance=76' 21105+4742 BU 159AB distance=76' 21105+4742 STTA215AC distance=76' 21105+4742 BU 159AD distance=76' 21105+4742 LV 23AE distance=76' 21001+4841 BU 1210AB distance=76' 21001+4841 STT 425AC distance=76' 21001+4841 STT 425AE distance=76' 21019+4802 COU2650 distance=76' 21092+4737 TDT2786 distance=76' 21001+4911 HJ 1604 distance=78' 21157+4832 HDS3024 distance=82' 21019+4952 HER 26 distance=83' 21016+4948 TDT2700 distance=83' 21148+4946 COU2653 distance=89' 21077+4718 A 759 distance=93' 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 21077+4851 ES 818 AB 39 48.6
Show 21077+4851 ES 818 BC 137 2.2 1
Show 21100+4901 HDS3016 25 0.3 25
Show 21050+4855 CVE 25 157 6.7 27
Show 21050+4858 TDT2728 57 2.5 28
Show 21100+4908 FMR 233 255 8.7 29
Show 21065+4823 BU 836 AB 177 0.8 31
Show 21065+4823 BU 836 AB,C 218 27.5 31
Show 21065+4823 BU 836 CD 64 1.4 31
Show 21047+4902 HU 590 91 0.1 31
Show 21102+4828 KPP4226 308 1.9 34
Show 21103+4828 TOI1343 334 0.5 36
Show 21097+4820 COU2545 74 0.7 37
Show 21089+4815 ARG 42 BC 306 45.9 39
Show 21089+4815 ARG 42 AB 60 21.0 39
Show 21089+4815 ARG 42 AC 333 41.8 39
Show 21117+4849 COU2651 13 0.9 40
Show 21119+4845 STJ 110 114 1.3 43
Show 21119+4838 HJ 1624 190 6.2 45
Show 21100+4811 RAO 448 3 3.5 46
Show 21127+4900 COU2652 339 0.7 51
Show 21043+4806 ARN 51 340 47.3 57
Show 21055+4758 ES 816 36 2.6 58
Show 21129+4820 HJ 1625 71 11.8 61
Show 21063+4751 BUP9010 AB 61 28.5 62
Show 21063+4751 BUP9010 AC 315 50.0 62
Show 21063+4751 BUP9010 AD 322 53.9 62
Show 21057+4748 BU 158 AB 304 11.0 66
Show 21072+4744 ES 817 AB 350 10.0 68
Show 21072+4744 ES 817 AC 347 22.2 68
Show 21072+4744 ES 817 AD 85 23.7 68
Show 21100+4745 A 761 56 0.4 71
Show 21066+4739 ES 32 159 15.7 74
Show 21005+4911 RAO 445 121 0.9 74
Show 21142+4930 ES 819 203 5.0 75
Show 21001+4841 STT 425 CD 132 4.3 76
Show 21105+4742 BU 159 AB 313 1.2 76
Show 21105+4742 STTA215 AC 189 136.7 76
Show 21105+4742 BU 159 AD 145 14.8 76
Show 21105+4742 LV 23 AE 338 46.8 76
Show 21001+4841 BU 1210 AB 118 2.4 76
Show 21001+4841 STT 425 AC 27 18.2 76
Show 21001+4841 STT 425 AE 15 45.4 76
Show 21019+4802 COU2650 256 2.0 76
Show 21092+4737 TDT2786 240 0.7 76
Show 21001+4911 HJ 1604 143 30.5 78
Show 21157+4832 HDS3024 328 0.3 82
Show 21019+4952 HER 26 249 29.3 83
Show 21016+4948 TDT2700 19 1.6 83
Show 21148+4946 COU2653 66 0.3 89
Show 21077+4718 A 759 24 4.1 93

 
 
WDS 21077+4851 : COMPONENTS
 
 
  A B
B pa=40.2°
sep=48.03"
 
C pa=42.4°
sep=47.45"
pa=148.7°
sep=1.93"
 
 
21077+4851 A
 
 
Coord arcsec 2000 210740.09+485118.7 Mag 7.83 Spectral class G5III (yellow) PmRA -4.00
PmDE -36.0 SAO 50479 HIP 104290 Tycho2 3596-01240-1
HD 201416 BD BD+48 3289
Tycho2
Tycho2 3596-01240-1 Pflag RAmdeg 316.91706530 DEmdeg 48.85519416
PmRA -4.8 PmDE -34.7 E RAmdeg 5 E DEmdeg 5
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.17 EpDEm 1991.28
Num 14 Q RAmdeg 0.4 Q DEmdeg 1.0 Q pmRA 0.3
Q pmDE 1.0 BTmag 8.965 E BTmag 0.017 VTmag 7.836
E VTmag 0.011 Prox 582 TYC T HIP 104290
CCDM RAdeg 316.91708222 DEdeg 48.85527361 EpRA 1990 1.75
EpDE 1990 1.74 E RAdeg 5.3 E DEdeg 5.4 Posflg
Corr 0.0
SAO
SAO 50479 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 -0.046 Vmag 7.9 SpType K0
Double code Source 3 CatNum 1707 DM BD+48 3289
DMcomp BDsup HD 201416 M HD 0
GC RA1950rad 5.52386501 DE1950rad 0.84915528 PmRA2000 0.0001
PmDE2000 -0.049
Hipparcos
Catalog H HIP 104290 Proxy RAhms 21 07 40.10
DEdms +48 51 19.0 Vmag 7.74 VarFlag R Vmag H
RAdeg 316.917 DEdeg 48.8553 AstroRef Plx 4.97
CCDM 21077+4851 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 201416 BD BD+48 3289
CD CP Dm number +48 3289 VIred 0.95
SpType G5III R SpType Coord arcsec 2000 210740.10+485119.0
Hipparcos 2
HIP 104290 Sn 5 So 0 Nc 1
RArad 5.5312465126 DErad 0.8526854502 Plx 4.51 PmRA -3.64
PmDE -36.05 E RArad 0.48 E DErad 0.48 E Plx 0.57
E pmRA 0.6 E pmDE 0.5 Hpmag 7.906 E Hpmag 0.0011
SHp 0.011 VA 0 BV 0.96 E BV 0.015
VI 0.95
CCDM
Ccdm 21077+4851 RComp Comp A Note1
Note2 Discov num DRAs -1.92 DDEs 18.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.2 Sp K0 PmNote *
PmRA -10 PmDE -40 Dm number +48 3289 Cat1 BD
Name2 +48 1707 Cat2 AGK2/3 HD 201416 M HD
ADS BDS A14673 M ADS BDS N IDS IDS 21043N4827A
HIC 104290
 
 
21077+4851 B
 
 
Coord arcsec 2000 210743.23+485155.4 Coord calc 210743.23+485155.4 Mag 11 PmRA -10.00
PmDE 14.0 Calc delta mag 3.17
CCDM
Ccdm 21077+4851 RComp Comp B Note1
Note2 Discov num ES 818 DRAs DDEs
R dRAs Year 1909 Theta 043 Rho 47.7
Obs 1 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14673 M ADS BDS N IDS IDS 21043N4827B
HIC
 
 
21077+4851 C
 
 
Coord arcsec 2000 210743.33+485153.7 Mag 12 Calc delta mag 4.17 Calc coord yes
CCDM
Ccdm 21077+4851 RComp B Comp C Note1
Note2 Discov num ES 818 DRAs DDEs
R dRAs Year 1909 Theta 081 Rho 2.4
Obs 1 Vmag 12.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14673 M ADS BDS N IDS IDS 21043N4827C
HIC