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Current system
20437+1800
LDS 4857


Nearby doubles
13' : 20444+1752
UC 4276

28' : 20430+1734
BPM2236

31' : 20442+1731
BPM2241

32' : 20420+1821
J 193

33' : 20432+1728
LOS 9

33' : 20433+1728
J 3109

35' : 20448+1730
BPM2252

39' : 20416+1738
J 3107

41' : 20425+1837
TDT2486

46' : 20409+1738
J 191

48' : 20434+1712
J 845

50' : 20408+1733
BPM2226

51' : 20453+1715
GWP2993

52' : 20417+1716
BPM2230

54' : 20400+1749
BPM2222

54' : 20456+1714
COU 425

55' : 20431+1705
BLL 51

56' : 20433+1855
TDS1094

60' : 20463+1715
GWP2995

61' : 20395+1812
BPM2220

64' : 20467+1846
YR 28

64' : 20435+1657
STF2720

65' : 20480+1816
BPM2268

68' : 20479+1732
BRT1348

73' : 20479+1840
UC 4292

80' : 20472+1901
TDT2538



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20437+1800 LDS 4857

 
 
20h 43m 39.02s +17° 59' 53.4" P.A. 128.00 sep 52.4 mag 11.22,18.10
 
 
Coord 2000 20437+1800 Discov num LDS4857 Comp Coord arcsec 2000 20 43 39.02 +17 59 53.4
Date first 1960 Date last 2015 Obs 7
Pa first 131 Pa last 127.6 P.A. Now (θ) 127.6°
Sep first 54.0 Sep last 52.433 Sep. Now (ρ) 52.433"
Mag pri 11.22 Mag sec 18.10 delta mag (ΔM) 6.88 Spectral class
Pri motion ra -066 Sec motion ra
Pri motion dec -090 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 1638-00579-1 Gaia DR2 1811554773808191360 HD 352908
 
 
WDS 20437+1800 LDS 4857 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
LDS Luyten p.m. catalog (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20437+1800 LDS4857 1997 2 129 52.8 11.22 18.10 D 204339.02+175953.4
20437+1800 LDS4857 2010 3 128 52.5 11.22 18.10 204339.02+175953.4
20437+1800 LDS4857 2015 4 128 52.4 11.22 18.10 204339.02+175953.4

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

 
 
WDS 20437+1800 LDS 4857 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20437+1800 LDS 4857 : MEASURES
 
 
No records found.

 
 
WDS 20437+1800 : VIRTUAL EYEPIECE
 
 

20437+1800 LDS4857A mag 11.22 20437+1800 LDS4857B sep 50.8 P.A. 129.00 mag 18.1 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20437+1800 : ALADIN DSS IMAGE @ 20h 43m 39.02s +17° 59' 53.4"
 
 
 
 
WDS 20437+1800 LDS 4857 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20437+1800 LDS4857 distance=0' 20444+1752 UC 4276 distance=13' 20430+1734 BPM2236 distance=28' 20442+1731 BPM2241 distance=31' 20420+1821 J 193 distance=32' 20432+1728 LOS 9 distance=33' 20433+1728 J 3109 distance=33' 20448+1730 BPM2252 distance=35' 20416+1738 J 3107 distance=39' 20425+1837 TDT2486 distance=41' 20409+1738 J 191 distance=46' 20434+1712 J 845 distance=48' 20408+1733 BPM2226 distance=50' 20453+1715 GWP2993 distance=51' 20417+1716 BPM2230 distance=52' 20400+1749 BPM2222 distance=54' 20456+1714 COU 425 distance=54' 20431+1705 BLL 51 distance=55' 20433+1855 TDS1094 distance=56' 20463+1715 GWP2995 distance=60' 20395+1812 BPM2220 distance=61' 20467+1846 YR 28 distance=64' 20435+1657 STF2720 distance=64' 20480+1816 BPM2268 distance=65' 20479+1732 BRT1348 distance=68' 20479+1840 UC 4292 distance=73' 20472+1901 TDT2538 distance=80' 20446+1642 BPM2246AB distance=80' 20446+1642 BPM2247AC distance=80' 20395+1857 HU 362 distance=83' 20423+1921 SHN 39 distance=85' 20467+1913 GWP2997 distance=85' 20437+1635 BPM2237 distance=85' 20385+1848 J 3102 distance=86' 20466+1915 COU 426 distance=87' 20446+1635 BPM2248AB distance=87' 20446+1635 BPM2249AC distance=87' 20446+1635 BPM2250BC distance=87' 20485+1854 HO 459 distance=89' 20377+1736 BPM2215 distance=89' 20499+1811 UC 4302 distance=90' 20375+1828 GRV 363 distance=92' 20471+1918 HO 141AB distance=93' 20471+1918 HO 141AC distance=93' 20374+1735 BPM2211 distance=93' 20376+1835 COU 224 distance=93' 20500+1732 TDS1104 distance=95' 20419+1931 COU 226AB distance=95' 20419+1931 COU 226AC distance=95' 20411+1631 FMR 161 distance=97' 20371+1738 BPM2208 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 20437+1800 LDS4857 128 52.4
Show 20444+1752 UC 4276 284 50.8 13
Show 20430+1734 BPM2236 331 95.7 28
Show 20442+1731 BPM2241 344 107.2 31
Show 20420+1821 J 193 81 5.5 32
Show 20432+1728 LOS 9 116 2.8 33
Show 20433+1728 J 3109 245 7.8 33
Show 20448+1730 BPM2252 246 39.8 35
Show 20416+1738 J 3107 119 6.0 39
Show 20425+1837 TDT2486 76 0.7 41
Show 20409+1738 J 191 166 1.3 46
Show 20434+1712 J 845 224 4.0 48
Show 20408+1733 BPM2226 226 107.2 50
Show 20453+1715 GWP2993 104 11.1 51
Show 20417+1716 BPM2230 15 58.6 52
Show 20400+1749 BPM2222 294 86.5 54
Show 20456+1714 COU 425 327 0.7 54
Show 20431+1705 BLL 51 159 56.3 55
Show 20433+1855 TDS1094 261 1.0 56
Show 20463+1715 GWP2995 257 8.3 60
Show 20395+1812 BPM2220 281 105.7 61
Show 20467+1846 YR 28 71 0.0 64
Show 20435+1657 STF2720 177 4.0 64
Show 20480+1816 BPM2268 54 74.1 65
Show 20479+1732 BRT1348 123 5.7 68
Show 20479+1840 UC 4292 105 11.0 73
Show 20472+1901 TDT2538 234 1.0 80
Show 20446+1642 BPM2246 AB 16 90.0 80
Show 20446+1642 BPM2247 AC 173 116.0 80
Show 20395+1857 HU 362 313 0.6 83
Show 20423+1921 SHN 39 54 0.5 85
Show 20467+1913 GWP2997 116 272.0 85
Show 20437+1635 BPM2237 49 108.4 85
Show 20385+1848 J 3102 96 6.4 86
Show 20466+1915 COU 426 158 0.3 87
Show 20446+1635 BPM2248 AB 95 107.8 87
Show 20446+1635 BPM2249 AC 29 107.0 87
Show 20446+1635 BPM2250 BC 332 117.2 87
Show 20485+1854 HO 459 24 0.5 89
Show 20377+1736 BPM2215 103 61.2 89
Show 20499+1811 UC 4302 172 82.1 90
Show 20375+1828 GRV 363 48 14.1 92
Show 20471+1918 HO 141 AB 294 1.6 93
Show 20471+1918 HO 141 AC 64 22.6 93
Show 20374+1735 BPM2211 234 109.1 93
Show 20376+1835 COU 224 322 0.4 93
Show 20500+1732 TDS1104 299 1.9 95
Show 20419+1931 COU 226 AB 53 0.4 95
Show 20419+1931 COU 226 AC 337 13.9 95
Show 20411+1631 FMR 161 322 27.8 97
Show 20371+1738 BPM2208 78 56.4 97

 
 
WDS 20437+1800 : COMPONENTS
 
 
  A
B pa=129.0°
sep=50.84"
 
 
20437+1800 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204339.02+175953.4 Mag 11.22 PmRA -66.00
PmDE -90.0 Tycho2 1638-00579-1 HD 352908
Tycho2
Tycho2 1638-00579-1 Pflag RAmdeg 310.91259004 DEmdeg 17.99818997
PmRA -78.9 PmDE -133.4 E RAmdeg 35 E DEmdeg 41
E pmRA 1.7 E pmDE 1.7 EpRAm 1981.34 EpDEm 1979.03
Num 4 Q RAmdeg 2.0 Q DEmdeg 1.2 Q pmRA 2.1
Q pmDE 1.2 BTmag 12.124 E BTmag 0.148 VTmag 11.223
E VTmag 0.093 Prox 999 TYC HIP
CCDM RAdeg 310.91277667 DEdeg 17.99849083 EpRA 1990 1.65
EpDE 1990 1.43 E RAdeg 59.2 E DEdeg 71.2 Posflg
Corr -0.1
 
 
20437+1800 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204341.79+175921.4 Mag 18.1 Calc delta mag 6.88
Calc coord yes