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Doubles in session


Current system
18305-2315
RST 4013
23 Sgr


Nearby doubles
9' : 18311-2315
DON 906

14' : 18306-2329
ARA2233

14' : 18313-2307
LEO 39AB

21' : 18314-2259
ARA2234

24' : 18294-2258
BRT1538

31' : 18325-2330
BRT1539

36' : 18297-2241
RST3183

36' : 18281-2300
OCC 45

37' : 18280-2328
LEO 18

39' : 18284-2249
OCC 44

42' : 18294-2353
B 393

46' : 18335-2256
BRT1540

49' : 18281-2349
ARA2231

57' : 18282-2227
ARA1889

57' : 18281-2228
ARA1888

63' : 18349-2326
HDS2636

63' : 18349-2256
ARA2236

67' : 18317-2211
ARA1890

71' : 18289-2422
LEO 38

78' : 18274-2420
KPP 412

84' : 18292-2436
B 392

85' : 18258-2220
ARA1887

89' : 18363-2355
ARA2237

90' : 18364-2353
ARA2238

91' : 18365-2353
ARA2239

91' : 18367-2348
KPP 420



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

18305-2315 RST 4013 (23 Sgr)

 
 
18h 30m 29.16s -23° 15' 02.3" P.A. 264.00 sep 1.3 mag 7.00,11.70 Sp G8Ib/II dist. 377.36 pc (1230.95 l.y.)
 
 
Coord 2000 18305-2315 Discov num RST4013 Comp Coord arcsec 2000 18 30 29.16 -23 15 02.3
Date first 1935 Date last 1949 Obs 3
Pa first 261 Pa last 264.1 P.A. Now (θ) 264.1°
Sep first 1.3 Sep last 1.26 Sep. Now (ρ) 1.26"
Mag pri 7.00 Mag sec 11.70 delta mag (ΔM) 4.7 Spectral class G8Ib/II (yellow)
Pri motion ra +002 Sec motion ra
Pri motion dec -005 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 23 Sgr Constellation Sagittarius SAO 186894 HIP 90713
Tycho2 6857-01414-1 Gaia DR2 4077814441070234112 HD 170457 GC 25247
CD CD-2314431 CP CP-23 7111 Flamsteed 23 Sagittarii Flamsteed name 23 Sgr
Distance 377.36 Distance ly 1230.95
 
 
WDS 18305-2315 RST 4013 (23 Sgr) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Rst1933 T - Rossiter, R.A. 1933MmRAS..65...27R
Rst1933 MemRAS 65, 27, 1933
Rst1937 Ma - Rossiter, R.A. 1937MmRAS..65...51R
Rst1937 MemRAS 65, 51, 1937
Rst1943 Ma - Rossiter, R.A. 1943POMic...8..133R
Rst1943 Pub. Univ. Michigan Obs. 8, 133, 1943
Rst1944 - Rossiter, R.A. 1944POMic...9....1R
Rst1944 Pub. Univ. Michigan Obs. 9, 1, 1944
Rst1947 Ma - Rossiter, R.A. 1947POMic...9....7R
Rst1947 Pub. Univ. Michigan Obs. 9, 7, 1947
Rst1955 Ma j Rossiter, R.A. 1955POMic..11....1R
Rst1955 +P+ Pub. Univ. Michigan Obs. 11, 1, 1955
Rst1964 Ma - Rossiter, R.A. 1964POMic...9...73R
Rst1964 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
18305-2315 RST4013 1949 3 264 1.3 7.00 11.70 G8Ib/II 183029.16-231502.3

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

 
 
WDS 18305-2315 RST 4013 (23 Sgr) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18305-2315 RST 4013 (23 Sgr) : MEASURES
 
 
No records found.

 
 
WDS 18305-2315 (23 Sgr) : VIRTUAL EYEPIECE
 
 

18305-2315 RST4013A mag 7 Sp G8Ib/II 18305-2315 RST4013B sep 1.2 P.A. 263.60 mag 11.7 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 18305-2315 (23 Sgr) : ALADIN DSS IMAGE @ 18h 30m 29.16s -23° 15' 02.3"
 
 
 
 
WDS 18305-2315 RST 4013 (23 Sgr) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18305-2315 RST4013 distance=0' 18311-2315 DON 906 distance=9' 18306-2329 ARA2233 distance=14' 18313-2307 LEO 39AB distance=14' 18313-2307 LEO 39AC distance=14' 18314-2259 ARA2234 distance=21' 18294-2258 BRT1538 distance=24' 18325-2330 BRT1539 distance=31' 18297-2241 RST3183 distance=36' 18281-2300 OCC 45 distance=36' 18280-2328 LEO 18 distance=37' 18284-2249 OCC 44 distance=39' 18294-2353 B 393 distance=42' 18335-2256 BRT1540 distance=46' 18281-2349 ARA2231 distance=49' 18282-2227 ARA1889 distance=57' 18281-2228 ARA1888 distance=57' 18349-2326 HDS2636 distance=63' 18349-2256 ARA2236 distance=63' 18317-2211 ARA1890 distance=67' 18289-2422 LEO 38 distance=71' 18274-2420 KPP 412 distance=78' 18292-2436 B 392 distance=84' 18258-2220 ARA1887 distance=85' 18363-2355 ARA2237 distance=89' 18364-2353 ARA2238 distance=90' 18365-2353 ARA2239 distance=91' 18367-2348 KPP 420 distance=91' 18365-2354 ARA2240BC distance=92' 18365-2354 ARA2240AB distance=92' 18365-2355 ARA2319 distance=92' 18273-2154 ARA1535 distance=93' 18241-2248 ARA1886AB distance=94' 18241-2248 ARA1886AC distance=94' 18362-2409 J 2219 distance=96' 18353-2205 WNO 22 distance=97' 18352-2427 J 1654 distance=98' 18374-2337 B 2456 distance=98' 18296-2138 ARA1536 distance=98' 18315-2138 ARA1540 distance=99' 18235-2252 ARA1883 distance=99' 18288-2138 HU 242 distance=100' 18236-2245 ARA1884 distance=101' 18302-2135 ARA1537 distance=101' 18324-2138 ARA1541 distance=101' 18306-2133 ARA1538 distance=102' 18231-2252 ARA1881 distance=105' 18377-2244 ARA1893 distance=105' 18233-2245 BRT1533 distance=105' 18273-2140 HU 239 distance=106' 18377-2243 ARA1894 distance=106' 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 18305-2315 RST4013 264 1.3
Show 18311-2315 DON 906 145 2.0 9
Show 18306-2329 ARA2233 262 7.5 14
Show 18313-2307 LEO 39 AB 156 2.1 14
Show 18313-2307 LEO 39 AC 115 20.3 14
Show 18314-2259 ARA2234 326 13.2 21
Show 18294-2258 BRT1538 290 4.1 24
Show 18325-2330 BRT1539 230 4.1 31
Show 18297-2241 RST3183 207 0.5 36
Show 18281-2300 OCC 45 -1 0.1 36
Show 18280-2328 LEO 18 295 2.8 37
Show 18284-2249 OCC 44 -1 0.1 39
Show 18294-2353 B 393 135 1.7 42
Show 18335-2256 BRT1540 313 5.1 46
Show 18281-2349 ARA2231 250 12.0 49
Show 18282-2227 ARA1889 9 9.0 57
Show 18281-2228 ARA1888 250 13.7 57
Show 18349-2326 HDS2636 57 0.3 63
Show 18349-2256 ARA2236 38 7.3 63
Show 18317-2211 ARA1890 289 11.5 67
Show 18289-2422 LEO 38 217 3.0 71
Show 18274-2420 KPP 412 199 4.8 78
Show 18292-2436 B 392 208 5.2 84
Show 18258-2220 ARA1887 187 6.0 85
Show 18363-2355 ARA2237 133 9.7 89
Show 18364-2353 ARA2238 341 13.6 90
Show 18365-2353 ARA2239 249 8.8 91
Show 18367-2348 KPP 420 93 3.8 91
Show 18365-2354 ARA2240 BC 3 12.6 92
Show 18365-2354 ARA2240 AB 317 10.4 92
Show 18365-2355 ARA2319 3 11.4 92
Show 18273-2154 ARA1535 38 11.4 93
Show 18241-2248 ARA1886 AB 64 15.2 94
Show 18241-2248 ARA1886 AC 152 7.9 94
Show 18362-2409 J 2219 313 4.6 96
Show 18353-2205 WNO 22 269 11.4 97
Show 18352-2427 J 1654 78 3.5 98
Show 18374-2337 B 2456 225 8.0 98
Show 18296-2138 ARA1536 147 15.5 98
Show 18315-2138 ARA1540 10 14.8 99
Show 18235-2252 ARA1883 216 6.5 99
Show 18288-2138 HU 242 279 1.2 100
Show 18236-2245 ARA1884 338 13.8 101
Show 18302-2135 ARA1537 77 13.4 101
Show 18324-2138 ARA1541 349 7.1 101
Show 18306-2133 ARA1538 255 9.4 102
Show 18231-2252 ARA1881 134 13.3 105
Show 18377-2244 ARA1893 137 12.5 105
Show 18233-2245 BRT1533 65 1.9 105
Show 18273-2140 HU 239 185 3.1 106
Show 18377-2243 ARA1894 270 7.3 106

 
 
WDS 18305-2315 : COMPONENTS
 
 
  A
B pa=263.6°
sep=1.16"
 
 
18305-2315 A
 
 
Componente originario normalizzato AB Name 23 Sgr Coord arcsec 2000 183029.16-231502.3 Mag 7
Spectral class G8Ib/II (yellow) PmRA 2.00 PmDE -5.0 SAO 186894
HIP 90713 Tycho2 6857-01414-1 HD 170457 GC 25247
CD CD-2314431 CP CP-23 7111 Flamsteed 23 Sagittarii Flamsteed name 23 Sgr
Tycho2
Tycho2 6857-01414-1 Pflag RAmdeg 277.62149739 DEmdeg -23.25065016
PmRA -1.1 PmDE -6.5 E RAmdeg 5 E DEmdeg 6
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.91 EpDEm 1990.68
Num 18 Q RAmdeg 1.4 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 1.1 BTmag 8.907 E BTmag 0.019 VTmag 7.148
E VTmag 0.011 Prox 999 TYC T HIP 90713
CCDM RAdeg 277.62150000 DEdeg -23.25063500 EpRA 1990 1.64
EpDE 1990 1.57 E RAdeg 5.2 E DEdeg 5.9 Posflg
Corr 0.1
SAO
SAO 186894 DelFlag RA1950 PmRA1950 -0.0024
DE1950 PmDE1950 -0.007 Vmag 7 SpType K0
Double code Source 70 CatNum 25247 DM CD-2314431
DMcomp BDsup HD 170457 M HD 0
GC 25247 RA1950rad 4.83214421 DE1950rad -0.40641333 PmRA2000 -0.0024
PmDE2000 -0.007
Hipparcos
Catalog H HIP 90713 Proxy RAhms 18 30 29.16
DEdms -23 15 02.3 Vmag 6.99 VarFlag R Vmag H
RAdeg 277.621 DEdeg -23.2506 AstroRef Plx 0.9
CCDM 18305-2315 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 170457 BD
CD CD-2314431 CP CP-23 7111 Dm number -2314431 VIred 1.45
SpType G8Ib/II R SpType Coord arcsec 2000 183029.16-231502.3
Hipparcos 2
HIP 90713 Sn 5 So 0 Nc 1
RArad 4.8454092706 DErad -0.4058001481 Plx 2.65 PmRA -3.36
PmDE -3.46 E RArad 0.6 E DErad 0.38 E Plx 0.59
E pmRA 0.86 E pmDE 0.47 Hpmag 7.1164 E Hpmag 0.0016
SHp 0.008 VA 0 BV 1.482 E BV 0.016
VI 1.5
CCDM
Ccdm 18305-2315 RComp Comp A Note1
Note2 Discov num DRAs -0.85 DDEs -2.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.0 Sp K0 PmNote *
PmRA -4 PmDE -1 Dm number -2314431 Cat1 CD
Name2 186894 Cat2 SAO HD 170457 M HD
ADS BDS M ADS BDS N IDS IDS 18244S2319A
HIC 90713
 
 
18305-2315 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183029.08-231502.4 Mag 11.7 Calc delta mag 4.7
Calc coord yes
CCDM
Ccdm 18305-2315 RComp Comp B Note1
Note2 Discov num RST4013 DRAs DDEs
R dRAs Year 1935 Theta 263 Rho 1.3
Obs 3 Vmag 11.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18244S2319B
HIC 90713