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Current system
20217-0745
HO 277


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

20217-0745 HO 277

 
 
20h 21m 41.96s -07° 45' 19.1" P.A. 68.00 sep 3.0 mag 8.91,13.30 Sp F8
 
 
Coord 2000 20217-0745 Discov num HO  277 Comp Coord arcsec 2000 20 21 41.96 -07 45 19.1
Date first 1888 Date last 2016 Obs 8
Pa first 70 Pa last 67.5 P.A. Now (θ) 67.5°
Sep first 2.8 Sep last 3.008 Sep. Now (ρ) 3.008"
Mag pri 8.91 Mag sec 13.30 delta mag (ΔM) 4.39 Spectral class F8 (yellow-white)
Pri motion ra +060 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquila SAO 144337 Tycho2 5741-00079-1 Gaia DR2 4215988933398838272
HD 193653
 
 
WDS 20217-0745 HO 277 : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
20217-0745 HO 277 1939 5 68 3.6 8.91 13.30 F8 -08 5330 202141.96-074519.1
20217-0745 HO 277 2016 6 68 3.0 8.91 13.30 F8 -08 5330 202141.96-074519.1

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

 
 
WDS 20217-0745 HO 277 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20217-0745 HO 277 : MEASURES
 
 
No records found.

 
 
WDS 20217-0745 : VIRTUAL EYEPIECE
 
 

20217-0745 HO 277A mag 8.91 Sp F8 20217-0745 HO 277B sep 3.0 P.A. 67.50 mag 13.3 virtual eyepiece
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Radius:
Components only
 
 
WDS 20217-0745 : ALADIN DSS IMAGE @ 20h 21m 41.96s -07° 45' 19.1"
 
 
 
 
WDS 20217-0745 HO 277 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20217-0745 HO 277 distance=0' 20208-0745 SCJ 25 distance=14' 20198-0827 LDS1468 distance=51' 20187-0710 J 2309 distance=59' 20182-0816 KPP4190 distance=61' 20238-0839 KPP1896 distance=62' 20258-0818 STF2678 distance=70' 20249-0648 A 2998 distance=75' 20247-0846 RST4062 distance=76' 20244-0638 WIS 338 distance=78' 20196-0632 LDS4837 distance=80' 20169-0712 J 2306 distance=80' 20169-0710 UC 4136 distance=81' 20270-0726 GWP2951 distance=82' 20165-0719 UC 4133 distance=83' 20161-0744 HO 589AB distance=83' 20161-0744 HO 589AC distance=83' 20166-0712 JNN 125 distance=84' 20165-0817 UC 4134 distance=85' 20275-0734 LDS5906 distance=88' 20151-0727 KPP2772 distance=101' 20188-0614 RST4660 distance=101' 20167-0630 J 1388 distance=105' 20189-0608 RST4661 distance=106' 20158-0640 UC 4130 distance=109' 20246-0602 UC 4169 distance=112' 20203-0935 GWP2940 distance=113' 20292-0759 UC 4197AB distance=113' 20153-0644 KPP4188 distance=114' 20293-0802 HLD 38 distance=114' 20211-0549 UC 4155 distance=117' 20289-0652 HJ 918 distance=119' 20296-0650 DOO 85 distance=129' 20305-0745 J 2312 distance=130' 20133-0706 RST4655 distance=131' 20127-0744 J 1699 distance=132' 20286-0622 J 1390 distance=134' 20251-0539 TDT2254 distance=137' 20125-0727 TDT2087 distance=139' 20293-0624 J 1392 distance=140' 20239-1001 UC 4165 distance=140' 20123-0806 BU 1205 distance=142' 20131-0854 RST4054 distance=146' 20119-0730 A 2997 distance=147' 20150-0557 RST4657 distance=147' 20251-1004 LDS4840 distance=148' 20118-0731 TDT2076 distance=148' 20301-0906 J 1706 distance=149' 20144-0603 STF2646AB distance=150' 20144-0603 STF2646BC distance=150' 20201-0517 TDT2180 distance=151' 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 20217-0745 HO 277 68 3.0 0
Show 20208-0745 SCJ 25 215 2.7 14
Show 20198-0827 LDS1468 31 9.0 51
Show 20187-0710 J 2309 323 6.2 59
Show 20182-0816 KPP4190 349 2.5 61
Show 20238-0839 KPP1896 157 14.8 62
Show 20258-0818 STF2678 310 3.4 70
Show 20249-0648 A 2998 338 0.5 75
Show 20247-0846 RST4062 354 0.0 76
Show 20244-0638 WIS 338 224 13.3 78
Show 20196-0632 LDS4837 145 28.9 80
Show 20169-0712 J 2306 62 5.2 80
Show 20169-0710 UC 4136 79 55.4 81
Show 20270-0726 GWP2951 78 50.0 82
Show 20165-0719 UC 4133 199 58.8 83
Show 20161-0744 HO 589 AB 329 15.7 83
Show 20161-0744 HO 589 AC 200 55.3 83
Show 20166-0712 JNN 125 273 0.2 84
Show 20165-0817 UC 4134 79 46.5 85
Show 20275-0734 LDS5906 239 2.1 88
Show 20151-0727 KPP2772 219 26.7 101
Show 20188-0614 RST4660 106 0.5 101
Show 20167-0630 J 1388 4 4.6 105
Show 20189-0608 RST4661 285 0.7 106
Show 20158-0640 UC 4130 12 77.6 109
Show 20246-0602 UC 4169 50 54.1 112
Show 20203-0935 GWP2940 264 408.2 113
Show 20292-0759 UC 4197 AB 111 15.1 113
Show 20153-0644 KPP4188 151 2.0 114
Show 20293-0802 HLD 38 298 2.3 114
Show 20211-0549 UC 4155 346 52.8 117
Show 20289-0652 HJ 918 326 7.7 119
Show 20296-0650 DOO 85 246 3.7 129
Show 20305-0745 J 2312 123 5.4 130
Show 20133-0706 RST4655 132 2.0 131
Show 20127-0744 J 1699 30 4.4 132
Show 20286-0622 J 1390 348 8.1 134
Show 20251-0539 TDT2254 106 1.0 137
Show 20125-0727 TDT2087 83 1.0 139
Show 20293-0624 J 1392 317 3.4 140
Show 20239-1001 UC 4165 312 15.4 140
Show 20123-0806 BU 1205 43 0.5 142
Show 20131-0854 RST4054 4 2.2 146
Show 20119-0730 A 2997 60 1.9 147
Show 20150-0557 RST4657 257 0.5 147
Show 20251-1004 LDS4840 298 5.5 148
Show 20118-0731 TDT2076 138 1.7 148
Show 20301-0906 J 1706 286 6.3 149
Show 20144-0603 STF2646 AB 40 17.8 150
Show 20144-0603 STF2646 BC 106 26.9 150
Show 20201-0517 TDT2180 190 1.9 151

 
 
WDS 20217-0745 : COMPONENTS
 
 
  A
B pa=67.5°
sep=3.01"
 
 
20217-0745 A
 
 
Coord arcsec 2000 202141.96-074519.1 Mag 8.91 Spectral class F8 (yellow-white) PmRA 60.00
PmDE 1.0 SAO 144337 Tycho2 5741-00079-1 HD 193653
DM BD-08 5330
Tycho2
Tycho2 5741-00079-1 Pflag RAmdeg 305.42485422 DEmdeg -7.75530583
PmRA 41.3 PmDE 3.3 E RAmdeg 9 E DEmdeg 11
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.39 EpDEm 1988.82
Num 11 Q RAmdeg 1.6 Q DEmdeg 0.9 Q pmRA 1.5
Q pmDE 0.9 BTmag 9.385 E BTmag 0.021 VTmag 8.913
E VTmag 0.017 Prox 999 TYC T HIP
CCDM RAdeg 305.42475667 DEdeg -7.75531472 EpRA 1990 1.67
EpDE 1990 1.35 E RAdeg 9.2 E DEdeg 11.5 Posflg
Corr -0.2
SAO
SAO 144337 DelFlag RA1950 PmRA1950 0.0044
DE1950 PmDE1950 -0.002 Vmag 8.5 SpType F8
Double code Source 26 CatNum 7208 DM BD-08 5330
DMcomp BDsup HD 193653 M HD 0
GC RA1950rad 5.3189282 DE1950rad -0.13815029 PmRA2000 0.0046
PmDE2000 -0.003
CCDM
Ccdm 20217-0745 RComp Comp A Note1
Note2 Discov num DRAs 0.04 DDEs -19.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.8 Sp F8 PmNote *
PmRA 65 PmDE -2 Dm number -08 5330 Cat1 BD
Name2 144337 Cat2 SAO HD 193653 M HD
ADS BDS A13740 M ADS BDS N IDS IDS 20163S0804A
HIC
 
 
20217-0745 B
 
 
Coord arcsec 2000 202142.15-074517.9 Mag 13.3 Delta magnitude 4.39 Coordinate calculated yes
CCDM
Ccdm 20217-0745 RComp Comp B Note1
Note2 Discov num HO 277 DRAs DDEs
R dRAs Year 1888 Theta 070 Rho 3.1
Obs 5 Vmag 13.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13740 M ADS BDS N IDS IDS 20163S0804B
HIC