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Doubles in session


Current system
20478+4750
ES 810


Nearby doubles
6' : 20478+4754
ES 2253

12' : 20481+4738
TDT2547

24' : 20496+4805
HJ 1584

30' : 20502+4732
ES 672

36' : 20454+4816
UC 254

44' : 20450+4718
BRT2274

45' : 20437+4733
A 749

49' : 20517+4721
TDT2584

49' : 20443+4716
TDT2509

57' : 20529+4814
ES 812

58' : 20482+4653
ES 669

59' : 20434+4712
TDT2496

66' : 20414+4758
ES 809AB

69' : 20546+4732
HJ 1594

72' : 20470+4901
HDS2962

73' : 20437+4651
TDS1096

73' : 20522+4653
BRT2278

74' : 20499+4640
BU 250

77' : 20441+4856
HEI 912

79' : 20501+4635
ES 671

79' : 20409+4828
ES 808

79' : 20466+4632
KUI 101

81' : 20557+4755
ES 813

82' : 20555+4723
ES 95AB

83' : 20555+4722
TOB 201AB

84' : 20397+4734
A 747AB



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.

20478+4750 ES 810

 
 
20h 47m 49.29s +47° 49' 54.9" P.A. 40.00 sep 20.7 mag 5.57,14.60 Sp K4III dist. 179.86 pc (586.7 l.y.)
 
 
Coord 2000 20478+4750 Discov num ES  810 Comp Coord arcsec 2000 20 47 49.29 +47 49 54.9
Date first 1909 Date last 2003 Obs 3
Pa first 42 Pa last 40.1 P.A. Now (θ) 40.1°
Sep first 18.3 Sep last 20.685 Sep. Now (ρ) 20.685"
Mag pri 5.57 Mag sec 14.60 delta mag (ΔM) 9.03 Spectral class K4III (yellow-orange)
Pri motion ra -006 Sec motion ra
Pri motion dec -015 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 50073 HIP 102635 Tycho2 3578-03163-1
Gaia DR2 2166775786416401536 HD 198345 HR 7969 GC 29012
ADS 14318 BD BD+47 3188 FK5 3662 Distance 179.86
Distance ly 586.7
 
 
WDS 20478+4750 ES 810 : NOTES
 
 
discov_num notes refcode
ES 810 A is a spectroscopic binary.
 
 
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Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E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
20478+4750 ES 810 1935 2 43 19.0 5.57 14.60 K4III N 204749.29+474954.9
20478+4750 ES 810 2003 4 40 20.7 5.57 14.60 K4III N 204749.29+474954.9
20478+4750 ES 810 2011 3 20 41.5 5.57 14.60 K4III N 204749.29+474954.9

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

 
 
WDS 20478+4750 ES 810 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20478+4750 ES 810 : MEASURES
 
 
No records found.

 
 
WDS 20478+4750 : VIRTUAL EYEPIECE
 
 

20478+4750 ES 810A mag 5.57 Sp K4III 20478+4750 ES 810B sep 18.2 P.A. 29.50 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 20478+4750 : ALADIN DSS IMAGE @ 20h 47m 49.29s +47° 49' 54.9"
 
 
 
 
WDS 20478+4750 ES 810 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20478+4750 ES 810 distance=0' 20478+4754 ES 2253 distance=6' 20481+4738 TDT2547 distance=12' 20496+4805 HJ 1584 distance=24' 20502+4732 ES 672 distance=30' 20454+4816 UC 254 distance=36' 20450+4718 BRT2274 distance=44' 20437+4733 A 749 distance=45' 20517+4721 TDT2584 distance=49' 20443+4716 TDT2509 distance=49' 20529+4814 ES 812 distance=57' 20482+4653 ES 669 distance=58' 20434+4712 TDT2496 distance=59' 20414+4758 ES 809AB distance=66' 20414+4758 SKF2394AC distance=66' 20546+4732 HJ 1594 distance=69' 20470+4901 HDS2962 distance=72' 20437+4651 TDS1096 distance=73' 20522+4653 BRT2278 distance=73' 20499+4640 BU 250 distance=74' 20441+4856 HEI 912 distance=77' 20501+4635 ES 671 distance=79' 20409+4828 ES 808 distance=79' 20466+4632 KUI 101 distance=79' 20557+4755 ES 813 distance=81' 20555+4723 TDT2632Aa,Ab distance=82' 20555+4723 ES 95AB distance=82' 20555+4723 HJ 1597AC distance=82' 20555+4722 TOB 201AB distance=83' 20555+4722 TOB 201AC distance=83' 20555+4722 TOB 201AD distance=83' 20555+4722 TOB 201CD distance=83' 20397+4734 A 747AB distance=84' 20397+4734 ES 90AB,C distance=84' 20558+4722 TOB 200 distance=86' 20397+4806 ES 806AB distance=87' 20397+4806 ES 806AC distance=87' 20508+4628 BRT2276AB distance=87' 20508+4628 FYM 314AC distance=87' 20508+4628 FYM 314AD distance=87' 20541+4850 CTI5707 distance=87' 20397+4721 A 748 distance=87' 20431+4637 BRT2273 distance=87' 20396+4823 RAO 616 distance=89' 20567+4754 ES 814AB distance=90' 20567+4754 CRB 14AC distance=90' 20389+4741 A 746 distance=90' 20389+4803 CNT 7 distance=92' 20456+4621 HDS2955 distance=92' 20383+4804 ES 89AB distance=97' 20566+4712 HDS2982 distance=97' 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 20478+4750 ES 810 40 20.7
Show 20478+4754 ES 2253 335 3.4 6
Show 20481+4738 TDT2547 73 2.5 12
Show 20496+4805 HJ 1584 223 4.3 24
Show 20502+4732 ES 672 166 4.6 30
Show 20454+4816 UC 254 181 17.9 36
Show 20450+4718 BRT2274 41 4.9 44
Show 20437+4733 A 749 306 0.5 45
Show 20517+4721 TDT2584 177 2.4 49
Show 20443+4716 TDT2509 180 1.4 49
Show 20529+4814 ES 812 169 8.5 57
Show 20482+4653 ES 669 28 6.8 58
Show 20434+4712 TDT2496 49 1.7 59
Show 20414+4758 ES 809 AB 285 1.6 66
Show 20414+4758 SKF2394 AC 68 3.0 66
Show 20546+4732 HJ 1594 48 9.1 69
Show 20470+4901 HDS2962 222 0.1 72
Show 20437+4651 TDS1096 147 0.9 73
Show 20522+4653 BRT2278 196 3.2 73
Show 20499+4640 BU 250 7 18.3 74
Show 20441+4856 HEI 912 201 1.7 77
Show 20501+4635 ES 671 91 1.6 79
Show 20409+4828 ES 808 157 3.3 79
Show 20466+4632 KUI 101 112 0.3 79
Show 20557+4755 ES 813 237 7.3 81
Show 20555+4723 TDT2632 Aa,Ab 169 0.6 82
Show 20555+4723 ES 95 AB 268 6.5 82
Show 20555+4723 HJ 1597 AC 127 13.6 82
Show 20555+4722 TOB 201 AB 82 20.0 83
Show 20555+4722 TOB 201 AC 146 13.4 83
Show 20555+4722 TOB 201 AD 114 18.9 83
Show 20555+4722 TOB 201 CD 71 10.3 83
Show 20397+4734 A 747 AB 104 0.3 84
Show 20397+4734 ES 90 AB,C 141 7.1 84
Show 20558+4722 TOB 200 91 11.5 86
Show 20397+4806 ES 806 AB 267 7.0 87
Show 20397+4806 ES 806 AC 24 11.9 87
Show 20508+4628 BRT2276 AB 254 3.7 87
Show 20508+4628 FYM 314 AC 149 9.5 87
Show 20508+4628 FYM 314 AD 86 11.2 87
Show 20541+4850 CTI5707 148 12.3 87
Show 20397+4721 A 748 27 1.4 87
Show 20431+4637 BRT2273 308 4.7 87
Show 20396+4823 RAO 616 122 1.8 89
Show 20567+4754 ES 814 AB 6.0 90
Show 20567+4754 CRB 14 AC 58 6.4 90
Show 20389+4741 A 746 150 2.0 90
Show 20389+4803 CNT 7 82 3.5 92
Show 20456+4621 HDS2955 289 0.4 92
Show 20383+4804 ES 89 AB 209 21.5 97
Show 20566+4712 HDS2982 161 0.1 97

 
 
WDS 20478+4750 : COMPONENTS
 
 
  A
B pa=29.5°
sep=18.18"
 
 
20478+4750 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204749.29+474954.9 Mag 5.57 Spectral class K4III (yellow-orange)
PmRA -6.00 PmDE -15.0 SAO 50073 HIP 102635
Tycho2 3578-03163-1 HD 198345 HR 7969 GC 29012
BD BD+47 3188 FK5 3662
Tycho2
Tycho2 3578-03163-1 Pflag RAmdeg 311.95536180 DEmdeg 47.83186869
PmRA -8.2 PmDE -18.3 E RAmdeg 4 E DEmdeg 4
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.52 EpDEm 1991.58
Num 10 Q RAmdeg 0.5 Q DEmdeg 1.0 Q pmRA 0.5
Q pmDE 1.1 BTmag 7.525 E BTmag 0.015 VTmag 5.760
E VTmag 0.009 Prox 999 TYC T HIP 102635
CCDM RAdeg 311.95539000 DEdeg 47.83191083 EpRA 1990 1.65
EpDE 1990 1.70 E RAdeg 3.6 E DEdeg 3.5 Posflg
Corr 0.1
SAO
SAO 50073 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 -0.024 Vmag 5.6 SpType K0
Double code Source 70 CatNum 29012 DM BD+47 3188
DMcomp BDsup HD 198345 M HD 0
GC 29012 RA1950rad 5.43746374 DE1950rad 0.83159043 PmRA2000 0.0011
PmDE2000 -0.027
Hipparcos
Catalog H HIP 102635 Proxy RAhms 20 47 49.29
DEdms +47 49 54.9 Vmag 5.6 VarFlag 1 R Vmag H
RAdeg 311.955 DEdeg 47.8319 AstroRef Plx 6.06
CCDM 20478+4750 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198345 BD BD+47 3188
CD CP Dm number +47 3188 VIred 1.44
SpType K5III R SpType Coord arcsec 2000 204749.29+474954.9
Hipparcos 2
HIP 102635 Sn 5 So 0 Nc 1
RArad 5.4446487107 DErad 0.8348243608 Plx 5.56 PmRA -8.76
PmDE -18.3 E RArad 0.21 E DErad 0.2 E Plx 0.25
E pmRA 0.25 E pmDE 0.23 Hpmag 5.7362 E Hpmag 0.0008
SHp 0.008 VA 0 BV 1.466 E BV 0.005
VI 1.44
CCDM
Ccdm 20478+4750 RComp Comp A Note1
Note2 Discov num DRAs 1.27 DDEs -5.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.6 Sp K0 PmNote *
PmRA -12 PmDE -12 Dm number +47 3188 Cat1 BD
Name2 +47 1641 Cat2 AGK2/3 HD 198345 M HD
ADS BDS A14318 M ADS BDS N IDS IDS 20445N4728A
HIC 102635
 
 
20478+4750 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204750.18+475010.7 Mag 14.6 Calc delta mag 9.03
Calc coord yes
CCDM
Ccdm 20478+4750 RComp Comp B Note1
Note2 Discov num ES 810 DRAs DDEs
R dRAs Year 1909 Theta 042 Rho 18.3
Obs 2 Vmag 14.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14318 M ADS BDS N IDS IDS 20445N4728B
HIC