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Doubles in session


Current system
18471-2331
LDS 4798


Nearby doubles
31' : 18451-2315
CBL 173

39' : 18444-2316
ARA2246

40' : 18442-2325
RST3195

44' : 18498-2350
TNN 13AB

45' : 18472-2246
DON 923

47' : 18453-2411
ALD 92

60' : 18474-2430
BRT3076

60' : 18427-2336
BRT1542

63' : 18425-2323
SHN 233

65' : 18487-2230
ARA1900

66' : 18423-2344
ARA2244

68' : 18440-2237
RST5453

68' : 18463-2224
SEE 360

68' : 18437-2240
DON 919AB

71' : 18419-2329
ARA2243

71' : 18421-2307
SHN 38

75' : 18434-2427
RST3193

76' : 18437-2430
B 401

78' : 18509-2235
DON 927AB

82' : 18510-2431
J 1751

83' : 18411-2345
ARA2242

84' : 18433-2225
I 1381

86' : 18516-2235
SHN 236

89' : 18484-2205
ARA1899

95' : 18448-2501
CHR 78

96' : 18401-2322
SHN 232



Selections
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Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18471-2331 LDS 4798

 
 
18h 46m 59.49s -23° 30' 39.2" P.A. 241.00 sep 5.7 mag 10.75,13.62 Sp K3
 
 
Coord 2000 18471-2331 Discov num LDS4798 Comp Coord arcsec 2000 18 46 59.49 -23 30 39.2
Date first 1960 Date last 2016 Obs 6
Pa first 240 Pa last 241.3 P.A. Now (θ) 241.3°
Sep first 5.0 Sep last 5.697 Sep. Now (ρ) 5.697"
Mag pri 10.75 Mag sec 13.62 delta mag (ΔM) 2.87 Spectral class K3 (yellow-orange)
Pri motion ra -354 Sec motion ra -354
Pri motion dec -309 Sec motion dec -309
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6859-00817-1
 
 
WDS 18471-2331 LDS 4798 : NOTES
 
 
discov_num notes refcode
LDS4798 NLTT 46980/46981 Chm2004
 
 
REFERENCES
 
 
refcode metd author reference
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
 
 
DISCOVERER
 
 
idgroup discov author
1 LDS Luyten p.m. catalog (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18471-2331 LDS4798 1998 2 242 5.6 10.75 13.62 D 184659.49-233039.2
18471-2331 LDS4798 1999 3 242 5.4 10.75 13.62 N D 184659.49-233039.2
18471-2331 LDS4798 2010 4 241 4.9 10.75 13.62 K3 N 184659.49-233039.2
18471-2331 LDS4798 2015 4 241 5.7 10.75 13.62 K3 N 184659.49-233039.2
18471-2331 LDS4798 2016 5 241 5.7 10.75 13.62 K3 N 184659.49-233039.2

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

 
 
WDS 18471-2331 LDS 4798 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18471-2331 LDS 4798 : MEASURES
 
 
No records found.

 
 
WDS 18471-2331 : VIRTUAL EYEPIECE
 
 

18471-2331 LDS4798A mag 10.75 Sp K3 18471-2331 LDS4798B sep 5.3 P.A. 239.20 mag 13.62 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18471-2331 : ALADIN DSS IMAGE @ 18h 46m 59.49s -23° 30' 39.2"
 
 
 
 
WDS 18471-2331 LDS 4798 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18471-2331 LDS4798 distance=0' 18451-2315 CBL 173 distance=31' 18444-2316 ARA2246 distance=39' 18442-2325 RST3195 distance=40' 18498-2350 TNN 13AB distance=44' 18498-2350 TNN 13AC distance=44' 18472-2246 DON 923 distance=45' 18453-2411 ALD 92 distance=47' 18474-2430 BRT3076 distance=60' 18427-2336 BRT1542 distance=60' 18425-2323 SHN 233 distance=63' 18487-2230 ARA1900 distance=65' 18423-2344 ARA2244 distance=66' 18440-2237 RST5453 distance=68' 18463-2224 SEE 360 distance=68' 18437-2240 DON 919AB distance=68' 18437-2240 DON 919AC distance=68' 18419-2329 ARA2243 distance=71' 18421-2307 SHN 38 distance=71' 18434-2427 RST3193 distance=75' 18437-2430 B 401 distance=76' 18509-2235 DON 927AB distance=78' 18509-2235 DON 927AC distance=78' 18510-2431 J 1751 distance=82' 18411-2345 ARA2242 distance=83' 18433-2225 I 1381 distance=84' 18516-2235 SHN 236 distance=86' 18484-2205 ARA1899 distance=89' 18448-2501 CHR 78 distance=95' 18401-2322 SHN 232 distance=96' 18508-2210 BU 1300 distance=97' 18411-2236 ARA1896 distance=97' 18510-2208 KPP 427 distance=100' 18524-2225 DON 930 distance=100' 18465-2511 RST3197 distance=101' 18413-2436 B 399 distance=103' 18541-2259 ALD 71 distance=105' 18512-2500 B 410 distance=106' 18542-2254 TDT1120 distance=106' 18521-2452 WFC 214 distance=107' 18513-2201 HJ 5070 distance=108' 18536-2235 ARA1902 distance=108' 18397-2249 SHN 231 distance=109' 18534-2435 OCC 54 distance=109' 18542-2245 BU 1033AB (Ainalrami) distance=110' 18542-2245 HJ 5072AC (Ainalrami) distance=110' 18549-2357 RCH 7AB distance=112' 18549-2357 OCC1044Aa,Ab distance=112' 18549-2357 OCC1044Aa,Ac distance=112' 18553-2341 B 412 distance=116' 18390-2259 ARA2241 distance=116' 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 18471-2331 LDS4798 241 5.7
Show 18451-2315 CBL 173 94 25.2 31
Show 18444-2316 ARA2246 194 12.1 39
Show 18442-2325 RST3195 191 1.2 40
Show 18498-2350 TNN 13 AB 311 6.2 44
Show 18498-2350 TNN 13 AC 234 8.3 44
Show 18472-2246 DON 923 348 0.6 45
Show 18453-2411 ALD 92 131 5.7 47
Show 18474-2430 BRT3076 94 3.5 60
Show 18427-2336 BRT1542 282 6.4 60
Show 18425-2323 SHN 233 -1 0.5 63
Show 18487-2230 ARA1900 103 12.0 65
Show 18423-2344 ARA2244 225 10.4 66
Show 18440-2237 RST5453 211 0.1 68
Show 18463-2224 SEE 360 217 14.7 68
Show 18437-2240 DON 919 AB 80 3.4 68
Show 18437-2240 DON 919 AC 306 14.9 68
Show 18419-2329 ARA2243 105 8.6 71
Show 18421-2307 SHN 38 33 0.2 71
Show 18434-2427 RST3193 190 0.6 75
Show 18437-2430 B 401 123 0.5 76
Show 18509-2235 DON 927 AB 68 3.3 78
Show 18509-2235 DON 927 AC 8 9.1 78
Show 18510-2431 J 1751 281 13.7 82
Show 18411-2345 ARA2242 118 6.6 83
Show 18433-2225 I 1381 37 1.3 84
Show 18516-2235 SHN 236 -1 0.0 86
Show 18484-2205 ARA1899 261 10.9 89
Show 18448-2501 CHR 78 192 0.1 95
Show 18401-2322 SHN 232 -1 0.1 96
Show 18508-2210 BU 1300 254 18.0 97
Show 18411-2236 ARA1896 327 12.3 97
Show 18510-2208 KPP 427 235 3.7 100
Show 18524-2225 DON 930 272 0.7 100
Show 18465-2511 RST3197 156 0.3 101
Show 18413-2436 B 399 49 3.5 103
Show 18541-2259 ALD 71 158 2.1 105
Show 18512-2500 B 410 190 0.8 106
Show 18542-2254 TDT1120 27 0.4 106
Show 18521-2452 WFC 214 262 9.3 107
Show 18513-2201 HJ 5070 51 9.7 108
Show 18536-2235 ARA1902 324 11.2 108
Show 18397-2249 SHN 231 -1 0.1 109
Show 18534-2435 OCC 54 -1 0.1 109
Show Ainalrami 18542-2245 BU 1033 AB 99 2.5 110
Show Ainalrami 18542-2245 HJ 5072 AC 58 28.0 110
Show 18549-2357 RCH 7 AB 20 1.6 112
Show 18549-2357 OCC1044 Aa,Ab -1 0.0 112
Show 18549-2357 OCC1044 Aa,Ac -1 0.0 112
Show 18553-2341 B 412 278 1.9 116
Show 18390-2259 ARA2241 114 7.3 116

 
 
WDS 18471-2331 : COMPONENTS
 
 
  A
B pa=239.2°
sep=5.34"
 
 
18471-2331 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 184659.49-233039.2 Mag 10.75 Spectral class K3 (yellow-orange)
PmRA -354.00 PmDE -309.0 Tycho2 6859-00817-1
Tycho2
Tycho2 6859-00817-1 Pflag RAmdeg 281.74785789 DEmdeg -23.51090227
PmRA -354.3 PmDE -308.5 E RAmdeg 52 E DEmdeg 71
E pmRA 3.0 E pmDE 3.0 EpRAm 1987.82 EpDEm 1983.31
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.3 Q pmRA 1.1
Q pmDE 0.3 BTmag 12.094 E BTmag 0.174 VTmag 10.749
E VTmag 0.079 Prox 999 TYC HIP
CCDM RAdeg 281.74873111 DEdeg -23.51019139 EpRA 1990 1.86
EpDE 1990 1.71 E RAdeg 53.1 E DEdeg 74.6 Posflg
Corr 0.1
 
 
18471-2331 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184659.16-233041.9 Mag 13.62 PmRA -354.00
PmDE -309.0 Calc delta mag 2.87 Calc coord yes