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Doubles in session


Current system
18311-2315
DON 906


Nearby doubles
9' : 18313-2307
LEO 39AB

9' : 18305-2315
RST4013

16' : 18306-2329
ARA2233

17' : 18314-2259
ARA2234

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BRT1539

30' : 18294-2258
BRT1538

38' : 18335-2256
BRT1540

40' : 18297-2241
RST3183

45' : 18281-2300
OCC 45

45' : 18280-2328
LEO 18

45' : 18284-2249
OCC 44

46' : 18294-2353
B 393

54' : 18349-2326
HDS2636

55' : 18281-2349
ARA2231

55' : 18349-2256
ARA2236

62' : 18282-2227
ARA1889

63' : 18281-2228
ARA1888

65' : 18317-2211
ARA1890

74' : 18289-2422
LEO 38

82' : 18363-2355
ARA2237

82' : 18364-2353
ARA2238

83' : 18367-2348
KPP 420

84' : 18365-2353
ARA2239

84' : 18274-2420
KPP 412

84' : 18365-2354
ARA2240AB

84' : 18365-2355
ARA2319



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

18311-2315 DON 906

 
 
18h 31m 07.09s -23° 14' 57.5" P.A. 145.00 sep 2.0 mag 10.37,13.70
 
 
Coord 2000 18311-2315 Discov num DON 906 Comp Coord arcsec 2000 18 31 07.09 -23 14 57.5
Date first 1932 Date last 2015 Obs 5
Pa first 129 Pa last 145.4 P.A. Now (θ) 145.4°
Sep first 1.6 Sep last 2.039 Sep. Now (ρ) 2.039"
Mag pri 10.37 Mag sec 13.70 delta mag (ΔM) 3.33 Spectral class
Pri motion ra +004 Sec motion ra
Pri motion dec +000 Sec motion dec
Notes S (Parallax indidates non-physical)
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6857-01409-1 Gaia DR2 4077834197925054464
 
 
WDS 18311-2315 DON 906 : 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
18311-2315 DON 906 1949 4 128 1.6 10.37 13.70 183107.09-231457.5
18311-2315 DON 906 2015 5 145 2.0 10.37 13.70 S 183107.09-231457.5

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

 
 
WDS 18311-2315 DON 906 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18311-2315 DON 906 : MEASURES
 
 
No records found.

 
 
WDS 18311-2315 : VIRTUAL EYEPIECE
 
 

18311-2315 DON 906A mag 10.37 18311-2315 DON 906B sep 2.0 P.A. 147.60 mag 13.7 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18311-2315 : ALADIN DSS IMAGE @ 18h 31m 07.09s -23° 14' 57.5"
 
 
 
 
WDS 18311-2315 DON 906 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18311-2315 DON 906 distance=0' 18313-2307 LEO 39AB distance=9' 18313-2307 LEO 39AC distance=9' 18305-2315 RST4013 distance=9' 18306-2329 ARA2233 distance=16' 18314-2259 ARA2234 distance=17' 18325-2330 BRT1539 distance=24' 18294-2258 BRT1538 distance=30' 18335-2256 BRT1540 distance=38' 18297-2241 RST3183 distance=40' 18281-2300 OCC 45 distance=45' 18280-2328 LEO 18 distance=45' 18284-2249 OCC 44 distance=45' 18294-2353 B 393 distance=46' 18349-2326 HDS2636 distance=54' 18281-2349 ARA2231 distance=55' 18349-2256 ARA2236 distance=55' 18282-2227 ARA1889 distance=62' 18281-2228 ARA1888 distance=63' 18317-2211 ARA1890 distance=65' 18289-2422 LEO 38 distance=74' 18363-2355 ARA2237 distance=82' 18364-2353 ARA2238 distance=82' 18367-2348 KPP 420 distance=83' 18365-2353 ARA2239 distance=84' 18274-2420 KPP 412 distance=84' 18365-2354 ARA2240BC distance=84' 18365-2354 ARA2240AB distance=84' 18365-2355 ARA2319 distance=84' 18292-2436 B 392 distance=86' 18362-2409 J 2219 distance=89' 18374-2337 B 2456 distance=90' 18353-2205 WNO 22 distance=91' 18352-2427 J 1654 distance=92' 18258-2220 ARA1887 distance=92' 18377-2244 ARA1893 distance=97' 18377-2243 ARA1894 distance=97' 18273-2154 ARA1535 distance=97' 18315-2138 ARA1540 distance=98' 18324-2138 ARA1541 distance=99' 18296-2138 ARA1536 distance=100' 18302-2135 ARA1537 distance=101' 18350-2441 J 1746 distance=102' 18241-2248 ARA1886AB distance=102' 18241-2248 ARA1886AC distance=102' 18306-2133 ARA1538 distance=102' 18288-2138 HU 242 distance=103' 18361-2154 ARA1546 distance=106' 18235-2252 ARA1883 distance=108' 18236-2245 ARA1884 distance=109' 18280-2135 HU 240 distance=109' 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 18311-2315 DON 906 145 2.0
Show 18313-2307 LEO 39 AB 156 2.1 9
Show 18313-2307 LEO 39 AC 115 20.3 9
Show 18305-2315 RST4013 264 1.3 9
Show 18306-2329 ARA2233 262 7.5 16
Show 18314-2259 ARA2234 326 13.2 17
Show 18325-2330 BRT1539 230 4.1 24
Show 18294-2258 BRT1538 290 4.1 30
Show 18335-2256 BRT1540 313 5.1 38
Show 18297-2241 RST3183 207 0.5 40
Show 18281-2300 OCC 45 -1 0.1 45
Show 18280-2328 LEO 18 295 2.8 45
Show 18284-2249 OCC 44 -1 0.1 45
Show 18294-2353 B 393 135 1.7 46
Show 18349-2326 HDS2636 57 0.3 54
Show 18281-2349 ARA2231 250 12.0 55
Show 18349-2256 ARA2236 38 7.3 55
Show 18282-2227 ARA1889 9 9.0 62
Show 18281-2228 ARA1888 250 13.7 63
Show 18317-2211 ARA1890 289 11.5 65
Show 18289-2422 LEO 38 217 3.0 74
Show 18363-2355 ARA2237 133 9.7 82
Show 18364-2353 ARA2238 341 13.6 82
Show 18367-2348 KPP 420 93 3.8 83
Show 18365-2353 ARA2239 249 8.8 84
Show 18274-2420 KPP 412 199 4.8 84
Show 18365-2354 ARA2240 BC 3 12.6 84
Show 18365-2354 ARA2240 AB 317 10.4 84
Show 18365-2355 ARA2319 3 11.4 84
Show 18292-2436 B 392 208 5.2 86
Show 18362-2409 J 2219 313 4.6 89
Show 18374-2337 B 2456 225 8.0 90
Show 18353-2205 WNO 22 269 11.4 91
Show 18352-2427 J 1654 78 3.5 92
Show 18258-2220 ARA1887 187 6.0 92
Show 18377-2244 ARA1893 137 12.5 97
Show 18377-2243 ARA1894 270 7.3 97
Show 18273-2154 ARA1535 38 11.4 97
Show 18315-2138 ARA1540 10 14.8 98
Show 18324-2138 ARA1541 349 7.1 99
Show 18296-2138 ARA1536 147 15.5 100
Show 18302-2135 ARA1537 77 13.4 101
Show 18350-2441 J 1746 165 3.9 102
Show 18241-2248 ARA1886 AB 64 15.2 102
Show 18241-2248 ARA1886 AC 152 7.9 102
Show 18306-2133 ARA1538 255 9.4 102
Show 18288-2138 HU 242 279 1.2 103
Show 18361-2154 ARA1546 173 10.4 106
Show 18235-2252 ARA1883 216 6.5 108
Show 18236-2245 ARA1884 338 13.8 109
Show 18280-2135 HU 240 35 4.7 109

 
 
WDS 18311-2315 : COMPONENTS
 
 
  A
B pa=147.6°
sep=1.99"
 
 
18311-2315 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 183107.09-231457.5 Mag 10.37 PmRA 4.00
PmDE 0.0 Tycho2 6857-01409-1
Tycho2
Tycho2 6857-01409-1 Pflag RAmdeg 277.77958595 DEmdeg -23.24933175
PmRA 4.4 PmDE 0.4 E RAmdeg 49 E DEmdeg 59
E pmRA 3.2 E pmDE 3.1 EpRAm 1988.35 EpDEm 1986.41
Num 3 Q RAmdeg 0.5 Q DEmdeg 0.6 Q pmRA 0.5
Q pmDE 0.5 BTmag 12.442 E BTmag 0.265 VTmag 10.371
E VTmag 0.058 Prox 999 TYC T HIP
CCDM RAdeg 277.77957472 DEdeg -23.24933250 EpRA 1990 1.60
EpDE 1990 1.50 E RAdeg 50.2 E DEdeg 60.6 Posflg
Corr 0.0
 
 
18311-2315 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183107.17-231459.2 Mag 13.7 Calc delta mag 3.33
Calc coord yes