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Doubles in session


Current system
18472-2246
DON 923
HD 173643


Nearby doubles
26' : 18463-2224
SEE 360

27' : 18487-2230
ARA1900

42' : 18451-2315
CBL 173

45' : 18484-2205
ARA1899

45' : 18471-2331
LDS4798

46' : 18440-2237
RST5453

49' : 18437-2240
DON 919AB

49' : 18444-2316
ARA2246

53' : 18509-2235
DON 927AB

58' : 18442-2325
RST3195

58' : 18433-2225
I 1381

63' : 18516-2235
SHN 236

63' : 18508-2210
BU 1300

65' : 18510-2208
KPP 427

73' : 18513-2201
HJ 5070

74' : 18421-2307
SHN 38

74' : 18498-2350
TNN 13AB

75' : 18524-2225
DON 930

76' : 18425-2323
SHN 233

80' : 18427-2336
BRT1542

85' : 18411-2236
ARA1896

86' : 18419-2329
ARA2243

87' : 18515-2143
DON 928

89' : 18439-2130
KPP4118

89' : 18453-2411
ALD 92

90' : 18423-2344
ARA2244



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18472-2246 DON 923 (HD 173643)

 
 
18h 47m 12.49s -22° 46' 00.6" P.A. 348.00 sep 0.6 mag 9.88,10.37 Sp F5V
 
 
Coord 2000 18472-2246 Discov num DON 923 Comp Coord arcsec 2000 18 47 12.49 -22 46 00.6
Date first 1929 Date last 1991 Obs 4
Pa first 359 Pa last 348.2 P.A. Now (θ) 348.2°
Sep first 0.5 Sep last 0.62 Sep. Now (ρ) 0.62"
Mag pri 9.88 Mag sec 10.37 delta mag (ΔM) 0.49 Spectral class F5V (yellow-white)
Pri motion ra +008 Sec motion ra +008
Pri motion dec -025 Sec motion dec -025
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173643 Constellation Sagittarius SAO 187278 Tycho2 6859-00198-1
Gaia DR2 4078476480151166592 HD 173643 DM CD-2213287
 
 
WDS 18472-2246 DON 923 (HD 173643) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Don1937 Ma j Donner, H.F. 1937MmRAS..65...51R
Don1937 MemRAS 65, 51, 1937
Don1955 Ma - Donner, H.F. 1955POMic..11....1R
Don1955 Pub. Univ. Michigan Obs. 11, 1, 1955
Don1964 Ma j Donner, H.F. 1964POMic...9...73R
Don1964 Pub. Univ. Michigan Obs. 9, 73, 1964
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18472-2246 DON 923 1991 4 348 0.6 9.88 10.37 F5V 184712.49-224600.6

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

 
 
WDS 18472-2246 DON 923 (HD 173643) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18472-2246 DON 923 (HD 173643) : MEASURES
 
 
No records found.

 
 
WDS 18472-2246 (HD 173643) : VIRTUAL EYEPIECE
 
 

18472-2246 DON 923A mag 9.88 Sp F5V 18472-2246 DON 923B sep 0.6 P.A. 349.10 mag 10.37 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18472-2246 (HD 173643) : ALADIN DSS IMAGE @ 18h 47m 12.49s -22° 46' 00.6"
 
 
 
 
WDS 18472-2246 DON 923 (HD 173643) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18472-2246 DON 923 distance=1' 18463-2224 SEE 360 distance=26' 18487-2230 ARA1900 distance=27' 18451-2315 CBL 173 distance=42' 18484-2205 ARA1899 distance=45' 18471-2331 LDS4798 distance=45' 18440-2237 RST5453 distance=46' 18437-2240 DON 919AB distance=49' 18437-2240 DON 919AC distance=49' 18444-2316 ARA2246 distance=49' 18509-2235 DON 927AB distance=53' 18509-2235 DON 927AC distance=53' 18442-2325 RST3195 distance=58' 18433-2225 I 1381 distance=58' 18516-2235 SHN 236 distance=63' 18508-2210 BU 1300 distance=63' 18510-2208 KPP 427 distance=65' 18513-2201 HJ 5070 distance=73' 18421-2307 SHN 38 distance=74' 18498-2350 TNN 13AB distance=74' 18498-2350 TNN 13AC distance=74' 18524-2225 DON 930 distance=75' 18425-2323 SHN 233 distance=76' 18427-2336 BRT1542 distance=80' 18411-2236 ARA1896 distance=85' 18419-2329 ARA2243 distance=86' 18515-2143 DON 928 distance=87' 18439-2130 KPP4118 distance=89' 18453-2411 ALD 92 distance=89' 18423-2344 ARA2244 distance=90' 18536-2235 ARA1902 distance=91' 18518-2141 DON 929 distance=91' 18452-2117 ARA1553 distance=95' 18542-2245 BU 1033AB (Ainalrami) distance=97' 18542-2245 HJ 5072AC (Ainalrami) distance=97' 18542-2254 TDT1120 distance=98' 18541-2259 ALD 71 distance=98' 18474-2108 B 1889 distance=98' 18411-2345 ARA2242 distance=103' 18397-2249 SHN 231 distance=104' 18474-2430 BRT3076 distance=104' 18401-2322 SHN 232 distance=105' 18508-2111 SHN 235 distance=107' 18407-2139 RST5122 distance=113' 18434-2427 RST3193 distance=114' 18503-2100 ARA1554 distance=115' 18390-2259 ARA2241 distance=115' 18437-2430 B 401 distance=116' 18555-2239 ARA1903 distance=116' 18510-2431 J 1751 distance=117' 18549-2157 RSS 495AB distance=118' 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 18472-2246 DON 923 348 0.6 1
Show 18463-2224 SEE 360 217 14.7 26
Show 18487-2230 ARA1900 103 12.0 27
Show 18451-2315 CBL 173 94 25.2 42
Show 18484-2205 ARA1899 261 10.9 45
Show 18471-2331 LDS4798 241 5.7 45
Show 18440-2237 RST5453 211 0.1 46
Show 18437-2240 DON 919 AB 80 3.4 49
Show 18437-2240 DON 919 AC 306 14.9 49
Show 18444-2316 ARA2246 194 12.1 49
Show 18509-2235 DON 927 AB 68 3.3 53
Show 18509-2235 DON 927 AC 8 9.1 53
Show 18442-2325 RST3195 191 1.2 58
Show 18433-2225 I 1381 37 1.3 58
Show 18516-2235 SHN 236 -1 0.0 63
Show 18508-2210 BU 1300 254 18.0 63
Show 18510-2208 KPP 427 235 3.7 65
Show 18513-2201 HJ 5070 51 9.7 73
Show 18421-2307 SHN 38 33 0.2 74
Show 18498-2350 TNN 13 AB 311 6.2 74
Show 18498-2350 TNN 13 AC 234 8.3 74
Show 18524-2225 DON 930 272 0.7 75
Show 18425-2323 SHN 233 -1 0.5 76
Show 18427-2336 BRT1542 282 6.4 80
Show 18411-2236 ARA1896 327 12.3 85
Show 18419-2329 ARA2243 105 8.6 86
Show 18515-2143 DON 928 277 4.9 87
Show 18439-2130 KPP4118 341 3.9 89
Show 18453-2411 ALD 92 131 5.7 89
Show 18423-2344 ARA2244 225 10.4 90
Show 18536-2235 ARA1902 324 11.2 91
Show 18518-2141 DON 929 329 3.9 91
Show 18452-2117 ARA1553 273 10.1 95
Show Ainalrami 18542-2245 BU 1033 AB 99 2.5 97
Show Ainalrami 18542-2245 HJ 5072 AC 58 28.0 97
Show 18542-2254 TDT1120 27 0.4 98
Show 18541-2259 ALD 71 158 2.1 98
Show 18474-2108 B 1889 218 0.8 98
Show 18411-2345 ARA2242 118 6.6 103
Show 18397-2249 SHN 231 -1 0.1 104
Show 18474-2430 BRT3076 94 3.5 104
Show 18401-2322 SHN 232 -1 0.1 105
Show 18508-2111 SHN 235 -1 0.2 107
Show 18407-2139 RST5122 189 2.1 113
Show 18434-2427 RST3193 190 0.6 114
Show 18503-2100 ARA1554 188 9.7 115
Show 18390-2259 ARA2241 114 7.3 115
Show 18437-2430 B 401 123 0.5 116
Show 18555-2239 ARA1903 235 8.2 116
Show 18510-2431 J 1751 281 13.7 117
Show 18549-2157 RSS 495 AB 67 21.4 118

 
 
WDS 18472-2246 : COMPONENTS
 
 
  A
B pa=349.1°
sep=0.62"
 
 
18472-2246 A
 
 
Componente originario normalizzato AB Name HD 173643 Coord arcsec 2000 184712.49-224600.6 Mag 9.88
Spectral class F5V (yellow-white) PmRA 8.00 PmDE -25.0 SAO 187278
Tycho2 6859-00198-1 HD 173643 DM CD-2213287
Tycho2
Tycho2 6859-00198-1 Pflag RAmdeg 281.80203000 DEmdeg -22.76677445
PmRA 8.3 PmDE -25.3 E RAmdeg 13 E DEmdeg 19
E pmRA 1.7 E pmDE 1.7 EpRAm 1989.50 EpDEm 1986.72
Num 6 Q RAmdeg 0.7 Q DEmdeg 1.3 Q pmRA 0.7
Q pmDE 1.3 BTmag 10.085 E BTmag 0.032 VTmag 9.536
E VTmag 0.027 Prox 999 TYC T HIP
CCDM RAdeg 281.80200889 DEdeg -22.76671778 EpRA 1990 1.84
EpDE 1990 1.72 E RAdeg 14.1 E DEdeg 22.0 Posflg P
Corr -0.1
SAO
SAO 187278 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.024 Vmag 9 SpType F5
Double code Source 25 CatNum 13042 DM CD-2213287
DMcomp BDsup HD 173643 M HD 0
GC RA1950rad 4.90518547 DE1950rad -0.3983133 PmRA2000 0.0001
PmDE2000 -0.024
CCDM
Ccdm 18472-2246 RComp Comp A Note1
Note2 Discov num DRAs 0.50 DDEs 0.5
R dRAs 41 Year Theta Rho
Obs 2 Vmag 9.2 Sp F5 PmNote *
PmRA 1 PmDE -24 Dm number -22 4860 Cat1 BD
Name2 187278 Cat2 SAO HD 173643 M HD
ADS BDS M ADS BDS N IDS IDS 18412S2252A
HIC
 
 
18472-2246 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184712.48-224560.0 Mag 10.37 PmRA 8.00
PmDE -25.0 Calc delta mag 0.49 Calc coord yes
CCDM
Ccdm 18472-2246 RComp Comp B Note1
Note2 Discov num DON 923 DRAs DDEs
R dRAs Year 1946 Theta 354 Rho 0.6
Obs 2 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18412S2252B
HIC