18509-2235 DON 927 AC

 
 
18h 50m 56.78s -22° 34' 56.5" P.A. 8.00 sep 9.1 mag 9.63,13.50 Sp F5V
 
 
Coord 2000 18509-2235 Discov num DON 927 Comp AC Coord arcsec 2000 18 50 56.78 -22 34 56.5
Date first 1929 Date last 2016 Obs 8
Pa first 7 Pa last 8.4 P.A. Now (θ) 8.4°
Sep first 8.8 Sep last 9.136 Sep. Now (ρ) 9.136"
Mag pri 9.63 Mag sec 13.50 delta mag (ΔM) 3.87 Spectral class F5V (yellow-white)
Pri motion ra +002 Sec motion ra +006
Pri motion dec -008 Sec motion dec +024
Notes
rPM=1.304
This double is not physical.
 
 
18509-2235 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 187347 18 50 57 -22 34 56 DON 927 AB 2015 3 68 3.3 9.63 15.70 6.07
Show 187347 18 50 57 -22 34 56 DON 927 AC 2016 8 8 9.1 9.63 13.50 3.87 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius SAO 187347 Tycho2 6860-00286-1 Gaia DR2 4078678691534438784
HD 174331 DM BD-22 4882
 
 
WDS 18509-2235 DON 927 AC : 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
18509-2235 DON 927 AC 1998 2 8 9.2 9.63 13.50 F5V D 185056.78-223456.5
18509-2235 DON 927 AC 1999 3 9 9.1 9.63 13.50 F5V D 185056.78-223456.5
18509-2235 DON 927 AC 2010 4 7 8.4 9.63 13.50 F5V 185056.78-223456.5
18509-2235 DON 927 AC 2015 4 8 9.1 9.63 13.50 F5V 185056.78-223456.5
18509-2235 DON 927 AC 2016 8 8 9.1 9.63 13.50 F5V 185056.78-223456.5

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

 
 
WDS 18509-2235 DON 927 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18509-2235 DON 927 AC : MEASURES
 
 
No records found.

 
 
WDS 18509-2235 : VIRTUAL EYEPIECE
 
 

18509-2235 DON 927A mag 9.63 Sp F5V 18509-2235 DON 927B sep 3.1 P.A. 65.90 mag 15.7 18509-2235 DON 927C sep 9.1 P.A. 7.80 mag 13.5 virtual eyepiece
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Radius:
Components only
 
 
WDS 18509-2235 : ALADIN DSS IMAGE @ 18h 50m 56.78s -22° 34' 56.5"
 
 
 
 
WDS 18509-2235 DON 927 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18509-2235  DON 927AC distance=0' 18516-2235  SHN 236 distance=10' 18524-2225  DON 930 distance=23' 18508-2210  BU 1300 distance=26' 18510-2208  KPP 427 distance=28' 18487-2230  ARA1900 distance=32' 18513-2201  HJ 5070 distance=35' 18536-2235  ARA1902 distance=38' 18542-2245  BU 1033AB (Ainalrami) distance=46' 18542-2245  HJ 5072AC (Ainalrami) distance=46' 18484-2205  ARA1899 distance=46' 18542-2254  TDT1120 distance=50' 18541-2259  ALD  71 distance=51' 18515-2143  DON 928 distance=53' 18472-2246  DON 923 distance=53' 18518-2141  DON 929 distance=56' 18555-2239  ARA1903 distance=64' 18463-2224  SEE 360 distance=65' 18556-2241  ARA1904 distance=66' 18549-2157  RSS 495AB distance=67' 18498-2350  TNN  13AB distance=77' 18498-2350  TNN  13AC distance=77' 18562-2258  ARA2247 distance=77' 18471-2331  LDS4798 distance=78' 18508-2111  SHN 235 distance=84' 18553-2341  B   412 distance=90' 18451-2315  CBL 173 distance=91' 18503-2100  ARA1554 distance=96' 18440-2237  RST5453 distance=97' 18554-2349  OCC1046 distance=97' 18565-2336  ARA2248 distance=98' 18570-2327  ARA2249 distance=98' 18549-2357  RCH   7AB distance=99' 18549-2357  OCC1044Aa,Ab distance=99' 18549-2357  OCC1044Aa,Ac distance=99' 18444-2316  ARA2246 distance=100' 18474-2108  B  1889 distance=101' 18437-2240  DON 919AB distance=101' 18437-2240  DON 919AC distance=101' 18433-2225  I  1381 distance=106' 18442-2325  RST3195 distance=106' 18583-2306  ARA2251 distance=108' 18569-2345  OCC1048 distance=109' 18580-2145  B  2870 distance=110' 18452-2117  ARA1553 distance=113' 18572-2352  CPO 603 distance=116' 18554-2413  OCC1045 distance=116' 18510-2431  J  1751 distance=116' 18580-2337  LEO  22AB distance=117' 18580-2337  OCC1049Aa,Ab distance=117' 18555-2413  OCC1047 distance=117' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 18509-2235 DON 927 AB 68 3.3
Show 18509-2235 DON 927 AC 8 9.1
Show 18516-2235 SHN 236 -1 0.0 10
Show 18524-2225 DON 930 272 0.7 23
Show 18508-2210 BU 1300 254 18.0 26
Show 18510-2208 KPP 427 235 3.7 28
Show 18487-2230 ARA1900 103 12.0 32
Show 18513-2201 HJ 5070 51 9.7 35
Show 18536-2235 ARA1902 324 11.2 38
Show Ainalrami 18542-2245 BU 1033 AB 99 2.5 46
Show Ainalrami 18542-2245 HJ 5072 AC 58 28.0 46
Show 18484-2205 ARA1899 261 10.9 46
Show 18542-2254 TDT1120 27 0.4 50
Show 18541-2259 ALD 71 158 2.1 51
Show 18515-2143 DON 928 277 4.9 53
Show 18472-2246 DON 923 348 0.6 53
Show 18518-2141 DON 929 329 3.9 56
Show 18555-2239 ARA1903 235 8.2 64
Show 18463-2224 SEE 360 217 14.7 65
Show 18556-2241 ARA1904 81 12.4 66
Show 18549-2157 RSS 495 AB 67 21.4 67
Show 18498-2350 TNN 13 AB 311 6.2 77
Show 18498-2350 TNN 13 AC 234 8.3 77
Show 18562-2258 ARA2247 314 14.9 77
Show 18471-2331 LDS4798 241 5.7 78
Show 18508-2111 SHN 235 -1 0.2 84
Show 18553-2341 B 412 278 1.9 90
Show 18451-2315 CBL 173 94 25.2 91
Show 18503-2100 ARA1554 188 9.7 96
Show 18440-2237 RST5453 211 0.1 97
Show 18554-2349 OCC1046 -1 0.0 97
Show 18565-2336 ARA2248 332 13.0 98
Show 18570-2327 ARA2249 221 9.4 98
Show 18549-2357 RCH 7 AB 20 1.6 99
Show 18549-2357 OCC1044 Aa,Ab -1 0.0 99
Show 18549-2357 OCC1044 Aa,Ac -1 0.0 99
Show 18444-2316 ARA2246 194 12.1 100
Show 18474-2108 B 1889 218 0.8 101
Show 18437-2240 DON 919 AB 80 3.4 101
Show 18437-2240 DON 919 AC 306 14.9 101
Show 18433-2225 I 1381 37 1.3 106
Show 18442-2325 RST3195 191 1.2 106
Show 18583-2306 ARA2251 235 10.2 108
Show 18569-2345 OCC1048 -1 0.0 109
Show 18580-2145 B 2870 263 6.0 110
Show 18452-2117 ARA1553 273 10.1 113
Show 18572-2352 CPO 603 161 9.9 116
Show 18554-2413 OCC1045 -1 0.0 116
Show 18510-2431 J 1751 281 13.7 116
Show 18580-2337 LEO 22 AB 280 2.8 117
Show 18580-2337 OCC1049 Aa,Ab -1 0.0 117

 
 
WDS 18509-2235 : COMPONENTS
 
 
  A B
B pa=65.9°
sep=3.09"
 
C pa=7.8°
sep=9.12"
pa=348.4°
sep=7.94"
 
 
18509-2235 A
 
 
Coord arcsec 2000 185056.78-223456.5 Mag 9.63 Spectral class F5V (yellow-white) PmRA -3.00
PmDE 0.0 SAO 187347 Tycho2 6860-00286-1 HD 174331
DM BD-22 4882
Tycho2
Tycho2 6860-00286-1 Pflag RAmdeg 282.73659546 DEmdeg -22.58237178
PmRA 0.4 PmDE -3.8 E RAmdeg 15 E DEmdeg 18
E pmRA 1.9 E pmDE 1.7 EpRAm 1989.64 EpDEm 1987.19
Num 7 Q RAmdeg 0.9 Q DEmdeg 1.5 Q pmRA 0.8
Q pmDE 1.5 BTmag 10.195 E BTmag 0.031 VTmag 9.629
E VTmag 0.027 Prox 999 TYC T HIP
CCDM RAdeg 282.73659556 DEdeg -22.58236611 EpRA 1990 1.70
EpDE 1990 1.57 E RAdeg 15.9 E DEdeg 19.7 Posflg
Corr 0.0
SAO
SAO 187347 DelFlag RA1950 PmRA1950 -0.0014
DE1950 PmDE1950 0.005 Vmag 9.1 SpType G0
Double code Source 25 CatNum 13086 DM CD-2213341
DMcomp BDsup HD 174331 M HD 0
GC RA1950rad 4.9215211 DE1950rad -0.39517385 PmRA2000 -0.0014
PmDE2000 0.005
 
 
18509-2235 B
 
 
Coord arcsec 2000 185056.98-223455.2 Mag 15.7 Calc delta mag 6.07 Calc coord yes
 
 
18509-2235 C
 
 
Coord arcsec 2000 185056.87-223447.5 Mag 13.5 PmRA 6.00 PmDE 24.0
Calc delta mag 3.87 Calc coord yes