20015+0040 HDO 315 (HD 189738)

 
 
20h 01m 32.86s +00° 39' 46.3" P.A. 203.00 sep 8.7 mag 9.04,12.50 Sp K2
 
 
Coord 2000 20015+0040 Discov num HDO 315 Comp Coord arcsec 2000 20 01 32.86 +00 39 46.3
Date first 1900 Date last 2015 Obs 9
Pa first 199 Pa last 203 P.A. Now (θ) 203°
Sep first 9.4 Sep last 8.672 Sep. Now (ρ) 8.672"
Mag pri 9.04 Mag sec 12.50 delta mag (ΔM) 3.46 Spectral class K2 (yellow-orange)
Pri motion ra +006 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 189738 Constellation Aquila SAO 125366 Tycho2 0494-02144-1
Gaia DR2 4237420098652573696 HD 189738
 
 
WDS 20015+0040 HDO 315 (HD 189738) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HdO1882a Mb - Harvard Obs. 1882AnHar..13...17.
HdO1882a Harvard Ann. 13, 17, 1882
HdO1882b Ma j Harvard Obs. (measure by Alden, G.I.) 1882AnHar..13...17.
HdO1882b Harvard Ann. 13, 17, 1882
HdO1882c Ma - Harvard Obs. (measure by Davis, W.M.) 1882AnHar..13...17.
HdO1882c Harvard Ann. 13, 17, 1882
HdO1906A Ma - Harvard Obs. 1906QB821.B972.....
HdO1906A cited in BDS (Burnham Double Star Cat., 1906)
HdO9999 Ma - Harvard Obs. ...................
HdO9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20015+0040 HDO 315 1945 4 202 8.9 9.04 12.50 K2 D 200132.86+003946.3
20015+0040 HDO 315 2000 5 203 8.6 9.04 12.50 K2 200132.86+003946.3
20015+0040 HDO 315 2014 6 200 7.7 9.04 12.50 K2 200132.86+003946.3
20015+0040 HDO 315 2015 7 203 8.7 9.04 12.50 K2 200132.86+003946.3

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WDS 20015+0040 HDO 315 (HD 189738) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20015+0040 HDO 315 (HD 189738) : MEASURES
 
 
No records found.

 
 
WDS 20015+0040 (HD 189738) : VIRTUAL EYEPIECE
 
 

20015+0040 HDO 315A mag 9.04 Sp K2 20015+0040 HDO 315B sep 8.7 P.A. 203.00 mag 12.5 virtual eyepiece
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Radius:
Components only
 
 
WDS 20015+0040 (HD 189738) : ALADIN DSS IMAGE @ 20h 01m 32.86s +00° 39' 46.3"
 
 
 
 
WDS 20015+0040 HDO 315 (HD 189738) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20015+0040  HDO 315 distance=0' 20022+0049  BAL1211 distance=13' 20027-0036  HJ 2921 distance=19' 20032+0042  HDO 316AB distance=26' 20032+0042  HDO 316AC distance=26' 20017-0012  H 1  93AB distance=28' 20017-0012  H 1  93AC distance=28' 20018+0110  A  2276 distance=31' 19593+0044  BAL1209AB distance=34' 20027+0009  GWP2918 distance=36' 19597-0019  BAL 919 distance=36' 20012+0120  A  2275 distance=41' 19583-0037  J  1386 distance=49' 20048+0109  TOK 699 distance=57' 20053+0027  HJ 2927AB distance=59' 20048-0007  TDT1955 distance=59' 20053+0027  BU 1482BC distance=59' 20052+0114  UC 4078 distance=65' 20023+0147  DAM 383 distance=68' 20026+0148  DAM 384AB distance=71' 20026+0148  DAM 384AC distance=71' 20025+0149  HJ 5510 distance=71' 20060+0102  TDS1041 distance=71' 20035+0147  BAL1542 distance=74' 19571+0003  GWP2912 distance=77' 19574+0128  J  1870 distance=80' 19589+0149  HJ 2914 distance=81' 19580+0142  BAL1538 distance=82' 19561+0007  BAL 916 distance=88' 19563+0001  BAL 917 distance=89' 20075-0037  H 4  34 distance=91' 20075+0057  UC 4090 distance=92' 20078+0021  BAL1212 distance=96' 19552-0023  J  2563 distance=96' 20031+0213  BAL1541 distance=96' 19552-0051  BU  830 distance=96' 20074+0000  J  2570AB distance=97' 20074+0000  J  2570AC distance=97' 20080-0041  SHY 325 distance=98' 19548-0025  J  2698 distance=99' 20083+0052  BAL1213 distance=103' 19568+0155  A  2391AB distance=104' 19568+0155  STF2601AB,C distance=104' 20061+0159  HLD 156 distance=106' 19586-0101  HJ  901 distance=111' 20068+0157  A  2278AB distance=111' 20068+0157  A  2278AC distance=111' 19571+0207  LDS1031 distance=111' 20089-0047  UC 4103 distance=112' 20025+0232  BAL2014 distance=113' 20066+0207  HJ  902 distance=116' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20015+0040 HDO 315 203 8.7
Show 20022+0049 BAL1211 80 12.1 13
Show 20027-0036 HJ 2921 341 21.7 19
Show 20032+0042 HDO 316 AB 143 4.5 26
Show 20032+0042 HDO 316 AC 189 16.4 26
Show 20017-0012 H 1 93 AB 297 1.8 28
Show 20017-0012 H 1 93 AC 27.4 28
Show 20018+0110 A 2276 59 3.8 31
Show 19593+0044 BAL1209 AB 218 12.5 34
Show 20027+0009 GWP2918 49 94.5 36
Show 19597-0019 BAL 919 34 7.8 36
Show 20012+0120 A 2275 146 0.4 41
Show 19583-0037 J 1386 319 3.9 49
Show 20048+0109 TOK 699 267 0.2 57
Show 20053+0027 HJ 2927 AB 124 23.6 59
Show 20048-0007 TDT1955 258 0.5 59
Show 20053+0027 BU 1482 BC 178 3.8 59
Show 20052+0114 UC 4078 82 48.3 65
Show 20023+0147 DAM 383 103 5.2 68
Show 20026+0148 DAM 384 AB 350 14.9 71
Show 20026+0148 DAM 384 AC 343 5.4 71
Show 20025+0149 HJ 5510 28 10.9 71
Show 20060+0102 TDS1041 257 1.2 71
Show 20035+0147 BAL1542 236 10.2 74
Show 19571+0003 GWP2912 232 8.2 77
Show 19574+0128 J 1870 283 7.7 80
Show 19589+0149 HJ 2914 209 13.5 81
Show 19580+0142 BAL1538 214 16.6 82
Show 19561+0007 BAL 916 219 9.2 88
Show 19563+0001 BAL 917 104 16.7 89
Show 20075-0037 H 4 34 198 49.7 91
Show 20075+0057 UC 4090 233 21.3 92
Show 20078+0021 BAL1212 114 12.3 96
Show 19552-0023 J 2563 137 4.3 96
Show 20031+0213 BAL1541 29 8.8 96
Show 19552-0051 BU 830 112 2.4 96
Show 20074+0000 J 2570 AB 79 3.6 97
Show 20074+0000 J 2570 AC 302 11.4 97
Show 20080-0041 SHY 325 228 999.9 98
Show 19548-0025 J 2698 270 8.5 99
Show 20083+0052 BAL1213 330 5.5 103
Show 19568+0155 A 2391 AB 1 0.3 104
Show 19568+0155 STF2601 AB,C 162 7.1 104
Show 20061+0159 HLD 156 255 1.3 106
Show 19586-0101 HJ 901 231 12.3 111
Show 20068+0157 A 2278 AB 214 0.9 111
Show 20068+0157 A 2278 AC 355 22.5 111
Show 19571+0207 LDS1031 246 8.5 111
Show 20089-0047 UC 4103 119 6.7 112
Show 20025+0232 BAL2014 35 11.6 113
Show 20066+0207 HJ 902 17 7.1 116

 
 
WDS 20015+0040 : COMPONENTS
 
 
  A
B pa=203.0°
sep=8.67"
 
 
20015+0040 A
 
 
Componente originario normalizzato AB Name HD 189738 Coord arcsec 2000 200132.86+003946.3 Mag 9.04
Spectral class K2 (yellow-orange) PmRA 6.00 PmDE -7.0 SAO 125366
Tycho2 0494-02144-1 HD 189738 DM BD+00 4386
Tycho2
Tycho2 0494-02144-1 Pflag RAmdeg 300.38695807 DEmdeg 0.66287475
PmRA 3.0 PmDE -11.7 E RAmdeg 15 E DEmdeg 19
E pmRA 1.1 E pmDE 1.1 EpRAm 1987.81 EpDEm 1986.91
Num 8 Q RAmdeg 0.6 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.8 BTmag 10.691 E BTmag 0.054 VTmag 9.038
E VTmag 0.022 Prox 999 TYC T HIP
CCDM RAdeg 300.38695028 DEdeg 0.66290306 EpRA 1990 1.64
EpDE 1990 1.38 E RAdeg 16.1 E DEdeg 19.5 Posflg
Corr -0.2
SAO
SAO 125366 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 -0.034 Vmag 8.6 SpType K2
Double code Source 31 CatNum 5042 DM BD+00 4386
DMcomp BDsup HD 189738 M HD 0
GC RA1950rad 5.23159981 DE1950rad 0.00913623 PmRA2000 0
PmDE2000 -0.036
CCDM
Ccdm 20015+0040 RComp Comp A Note1
Note2 Discov num DRAs 2.81 DDEs -14.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.9 Sp K2 PmNote *
PmRA 1 PmDE -17 Dm number +00 4386 Cat1 BD
Name2 +00 2443 Cat2 AGK2/3 HD 189738 M HD
ADS BDS A13257 M ADS BDS N IDS IDS 19564N0023A
HIC
 
 
20015+0040 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200132.63+003938.3 Mag 12.5 Calc delta mag 3.46
Calc coord yes
CCDM
Ccdm 20015+0040 RComp Comp B Note1
Note2 Discov num HDO DRAs DDEs
R dRAs Year 1900 Theta 200 Rho 8.9
Obs 4 Vmag 12.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13257 M ADS BDS N IDS IDS 19564N0023B
HIC