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Doubles in session


Current system
20517+4721
TDT 2584


Nearby doubles
19' : 20502+4732
ES 672

30' : 20522+4653
BRT2278

30' : 20546+4732
HJ 1594

39' : 20555+4723
ES 95AB

39' : 20555+4722
TOB 201AB

41' : 20481+4738
TDT2547

42' : 20558+4722
TOB 200

46' : 20499+4640
BU 250

46' : 20482+4653
ES 669

49' : 20496+4805
HJ 1584

49' : 20478+4750
ES 810

50' : 20501+4635
ES 671

51' : 20566+4712
HDS2982

53' : 20557+4755
ES 813

54' : 20478+4754
ES 2253

54' : 20508+4628
BRT2276AB

54' : 20529+4814
ES 812

57' : 20539+4632
ES 673

60' : 20571+4658
TDS1108

60' : 20567+4754
ES 814AB

68' : 20577+4752
KPP2318

69' : 20450+4718
BRT2274

72' : 20587+4734
A 757

72' : 20466+4632
KUI 101

73' : 20494+4613
ES 670

74' : 20547+4614
YSC 163



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

20517+4721 TDT 2584

 
 
20h 51m 44.10s +47° 21' 24.5" P.A. 177.00 sep 2.4 mag 10.51,12.10
 
 
Coord 2000 20517+4721 Discov num TDT2584 Comp Coord arcsec 2000 20 51 44.10 +47 21 24.5
Date first 1991 Date last 2015 Obs 2
Pa first 177 Pa last 176.9 P.A. Now (θ) 176.9°
Sep first 2.3 Sep last 2.376 Sep. Now (ρ) 2.376"
Mag pri 10.51 Mag sec 12.10 delta mag (ΔM) 1.59 Spectral class
Pri motion ra +002 Sec motion ra +002
Pri motion dec +007 Sec motion dec +007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3579-03693-1 Gaia DR2 2166885424028949760
 
 
WDS 20517+4721 TDT 2584 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
No records found.

 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20517+4721 TDT2584 1991 1 177 2.3 10.51 12.10 205144.10+472124.5
20517+4721 TDT2584 2015 2 177 2.4 10.51 12.10 205144.10+472124.5

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

 
 
WDS 20517+4721 TDT 2584 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20517+4721 TDT 2584 : MEASURES
 
 
No records found.

 
 
WDS 20517+4721 : VIRTUAL EYEPIECE
 
 

20517+4721 TDT2584A mag 10.51 20517+4721 TDT2584B sep 2.4 P.A. 177.90 mag 12.1 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 20517+4721 : ALADIN DSS IMAGE @ 20h 51m 44.10s +47° 21' 24.5"
 
 
 
 
WDS 20517+4721 TDT 2584 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20517+4721 TDT2584 distance=0' 20502+4732 ES 672 distance=19' 20522+4653 BRT2278 distance=30' 20546+4732 HJ 1594 distance=30' 20555+4723 TDT2632Aa,Ab distance=39' 20555+4723 ES 95AB distance=39' 20555+4723 HJ 1597AC distance=39' 20555+4722 TOB 201AB distance=39' 20555+4722 TOB 201AC distance=39' 20555+4722 TOB 201AD distance=39' 20555+4722 TOB 201CD distance=39' 20481+4738 TDT2547 distance=41' 20558+4722 TOB 200 distance=42' 20499+4640 BU 250 distance=46' 20482+4653 ES 669 distance=46' 20496+4805 HJ 1584 distance=49' 20478+4750 ES 810 distance=49' 20501+4635 ES 671 distance=50' 20566+4712 HDS2982 distance=51' 20557+4755 ES 813 distance=53' 20478+4754 ES 2253 distance=54' 20508+4628 BRT2276AB distance=54' 20508+4628 FYM 314AC distance=54' 20508+4628 FYM 314AD distance=54' 20529+4814 ES 812 distance=54' 20539+4632 ES 673 distance=57' 20571+4658 TDS1108 distance=60' 20567+4754 ES 814AB distance=60' 20567+4754 CRB 14AC distance=60' 20577+4752 KPP2318 distance=68' 20450+4718 BRT2274 distance=69' 20587+4734 A 757 distance=72' 20466+4632 KUI 101 distance=72' 20494+4613 ES 670 distance=73' 20547+4614 YSC 163 distance=74' 20571+4632 TDT2653 distance=75' 20443+4716 TDT2509 distance=76' 20527+4607 A 750 distance=76' 20531+4615 HJ 1591 distance=79' 20573+4818 HDS2987 distance=80' 20489+4607 HJ 1581 distance=80' 20562+4615 A 753AB distance=81' 20562+4615 A 753AB,C distance=81' 20437+4733 A 749 distance=82' 20597+4658 ES 1166 distance=83' 20598+4731 MCA 65Aa,Ab distance=83' 20598+4731 STF2743AB distance=83' 20598+4731 STF2743AC distance=83' 20598+4731 STF2743AD distance=83' 20598+4731 STF2743AE distance=83' 20454+4816 UC 254 distance=85' 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 20517+4721 TDT2584 177 2.4
Show 20502+4732 ES 672 166 4.6 19
Show 20522+4653 BRT2278 196 3.2 30
Show 20546+4732 HJ 1594 48 9.1 30
Show 20555+4723 TDT2632 Aa,Ab 169 0.6 39
Show 20555+4723 ES 95 AB 268 6.5 39
Show 20555+4723 HJ 1597 AC 127 13.6 39
Show 20555+4722 TOB 201 AB 82 20.0 39
Show 20555+4722 TOB 201 AC 146 13.4 39
Show 20555+4722 TOB 201 AD 114 18.9 39
Show 20555+4722 TOB 201 CD 71 10.3 39
Show 20481+4738 TDT2547 73 2.5 41
Show 20558+4722 TOB 200 91 11.5 42
Show 20499+4640 BU 250 7 18.3 46
Show 20482+4653 ES 669 28 6.8 46
Show 20496+4805 HJ 1584 223 4.3 49
Show 20478+4750 ES 810 40 20.7 49
Show 20501+4635 ES 671 91 1.6 50
Show 20566+4712 HDS2982 161 0.1 51
Show 20557+4755 ES 813 237 7.3 53
Show 20478+4754 ES 2253 335 3.4 54
Show 20508+4628 BRT2276 AB 254 3.7 54
Show 20508+4628 FYM 314 AC 149 9.5 54
Show 20508+4628 FYM 314 AD 86 11.2 54
Show 20529+4814 ES 812 169 8.5 54
Show 20539+4632 ES 673 76 5.2 57
Show 20571+4658 TDS1108 96 1.0 60
Show 20567+4754 ES 814 AB 6.0 60
Show 20567+4754 CRB 14 AC 58 6.4 60
Show 20577+4752 KPP2318 76 19.6 68
Show 20450+4718 BRT2274 41 4.9 69
Show 20587+4734 A 757 103 4.1 72
Show 20466+4632 KUI 101 112 0.3 72
Show 20494+4613 ES 670 81 6.5 73
Show 20547+4614 YSC 163 101 0.7 74
Show 20571+4632 TDT2653 301 2.3 75
Show 20443+4716 TDT2509 180 1.4 76
Show 20527+4607 A 750 211 0.1 76
Show 20531+4615 HJ 1591 134 10.1 79
Show 20573+4818 HDS2987 3 0.4 80
Show 20489+4607 HJ 1581 170 22.4 80
Show 20562+4615 A 753 AB 256 1.0 81
Show 20562+4615 A 753 AB,C 263 9.3 81
Show 20437+4733 A 749 306 0.5 82
Show 20597+4658 ES 1166 114 1.6 83
Show 20598+4731 MCA 65 Aa,Ab 334 0.1 83
Show 20598+4731 STF2743 AB 353 21.0 83
Show 20598+4731 STF2743 AC 140 26.5 83
Show 20598+4731 STF2743 AD 222 39.3 83
Show 20598+4731 STF2743 AE 59 70.6 83
Show 20454+4816 UC 254 181 17.9 85

 
 
WDS 20517+4721 : COMPONENTS
 
 
  A
B pa=177.9°
sep=2.37"
 
 
20517+4721 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205144.10+472124.5 Mag 10.51 PmRA 2.00
PmDE 7.0 Tycho2 3579-03693-1
Tycho2
Tycho2 3579-03693-1 Pflag RAmdeg 312.93378295 DEmdeg 47.35677498
PmRA 2.1 PmDE 6.6 E RAmdeg 29 E DEmdeg 33
E pmRA 1.8 E pmDE 1.7 EpRAm 1986.15 EpDEm 1985.85
Num 5 Q RAmdeg 1.1 Q DEmdeg 3.4 Q pmRA 1.1
Q pmDE 3.4 BTmag 11.787 E BTmag 0.078 VTmag 10.551
E VTmag 0.044 Prox 999 TYC T HIP
CCDM RAdeg 312.93376417 DEdeg 47.35678667 EpRA 1990 1.59
EpDE 1990 1.59 E RAdeg 38.3 E DEdeg 37.5 Posflg
Corr 0.0
 
 
20517+4721 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205144.11+472122.1 Mag 12.1 PmRA 2.00
PmDE 7.0 Calc delta mag 1.59 Calc coord yes