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Doubles in session


Current system
18210-2408
RST 4007
HD 168491


Nearby doubles
13' : 18216-2359
B 388

13' : 18216-2358
ARA2318

17' : 18200-2417
RST3176

26' : 18213-2433
RST4008

28' : 18220-2344
ARA2229

31' : 18229-2352
ARA2230

43' : 18218-2327
DON 895

46' : 18227-2328
BRT3067

49' : 18189-2330
ARA2226

51' : 18175-2354
RST3169

60' : 18218-2309
ARA2228

62' : 18175-2331
ARA2224

63' : 18166-2354
ARA2223

64' : 18181-2318
BRT1526

64' : 18253-2434
RST4010

69' : 18185-2309
TDT 787

70' : 18180-2505
OCC 669

71' : 18189-2304
B 2443

72' : 18208-2257
ARA1872

78' : 18168-2500
BU 285AB

79' : 18155-2344
ARA2222

81' : 18229-2524
B 389

82' : 18223-2248
ARA1876

82' : 18231-2252
ARA1881

84' : 18235-2252
ARA1883

85' : 18196-2247
ARA1870



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

18210-2408 RST 4007 (HD 168491)

 
 
18h 20m 59.75s -24° 08' 06.2" P.A. 121.00 sep 0.2 mag 10.70,10.70 Sp A8/9V
 
 
Coord 2000 18210-2408 Discov num RST4007 Comp Coord arcsec 2000 18 20 59.75 -24 08 06.2
Date first 1936 Date last 1969 Obs 4
Pa first 126 Pa last 120.9 P.A. Now (θ) 120.9°
Sep first 0.2 Sep last 0.21 Sep. Now (ρ) 0.21"
Mag pri 10.70 Mag sec 10.70 delta mag (ΔM) 0 Spectral class A8/9V (white)
Pri motion ra -007 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 168491 Constellation Sagittarius SAO 186685 Tycho2 6844-01818-1
Gaia DR2 4089343988720731776 HD 168491
 
 
WDS 18210-2408 RST 4007 (HD 168491) : 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
18210-2408 RST4007 1969 4 121 0.2 10.70 10.70 A8/9V 182059.75-240806.2

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

 
 
WDS 18210-2408 RST 4007 (HD 168491) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18210-2408 RST 4007 (HD 168491) : MEASURES
 
 
No records found.

 
 
WDS 18210-2408 (HD 168491) : VIRTUAL EYEPIECE
 
 

18210-2408 RST4007A mag 10.7 Sp A8/9V 18210-2408 RST4007B sep 0.2 P.A. 123.30 mag 10.7 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 18210-2408 (HD 168491) : ALADIN DSS IMAGE @ 18h 20m 59.75s -24° 08' 06.2"
 
 
 
 
WDS 18210-2408 RST 4007 (HD 168491) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18210-2408 RST4007 distance=1' 18216-2359 B 388 distance=13' 18216-2358 ARA2318 distance=13' 18200-2417 RST3176 distance=17' 18213-2433 RST4008 distance=26' 18220-2344 ARA2229 distance=28' 18229-2352 ARA2230 distance=31' 18218-2327 DON 895 distance=43' 18227-2328 BRT3067 distance=46' 18189-2330 ARA2226 distance=49' 18175-2354 RST3169 distance=51' 18218-2309 ARA2228 distance=60' 18175-2331 ARA2224 distance=62' 18166-2354 ARA2223 distance=63' 18181-2318 BRT1526 distance=64' 18253-2434 RST4010 distance=64' 18185-2309 TDT 787 distance=69' 18180-2505 OCC 669 distance=70' 18189-2304 B 2443 distance=71' 18208-2257 ARA1872 distance=72' 18168-2500 BU 285AB distance=78' 18168-2500 BU 285AC distance=78' 18168-2500 BU 285CD distance=78' 18168-2500 BU 285CE distance=78' 18155-2344 ARA2222 distance=79' 18229-2524 B 389 distance=81' 18223-2248 ARA1876 distance=82' 18231-2252 ARA1881 distance=82' 18235-2252 ARA1883 distance=84' 18196-2247 ARA1870 distance=85' 18150-2430 SEE 348 distance=86' 18153-2336 ARA2221 distance=86' 18197-2244 BRT1528 distance=86' 18274-2420 KPP 412 distance=89' 18233-2245 BRT1533 distance=89' 18168-2259 OCC 289 distance=91' 18236-2245 ARA1884 distance=91' 18146-2344 ARA2219 distance=91' 18241-2248 ARA1886AB distance=91' 18241-2248 ARA1886AC distance=91' 18185-2535 J 1738 distance=94' 18264-2509 J 1742 distance=95' 18143-2340 HLD 141 distance=96' 18228-2235 ARA1880 distance=97' 18220-2233 J 2208 distance=97' 18151-2503 B 2860BC distance=98' 18151-2503 B 2860A,BC distance=98' 18281-2349 ARA2231 distance=99' 18163-2253 BRT1522 distance=100' 18140-2335 ARA2218 distance=102' 18273-2503 LDS 639 distance=103' 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 18210-2408 RST4007 121 0.2 1
Show 18216-2359 B 388 199 1.6 13
Show 18216-2358 ARA2318 122 8.5 13
Show 18200-2417 RST3176 73 0.6 17
Show 18213-2433 RST4008 194 0.5 26
Show 18220-2344 ARA2229 246 13.5 28
Show 18229-2352 ARA2230 346 18.4 31
Show 18218-2327 DON 895 141 2.2 43
Show 18227-2328 BRT3067 29 3.3 46
Show 18189-2330 ARA2226 124 12.2 49
Show 18175-2354 RST3169 224 0.5 51
Show 18218-2309 ARA2228 195 14.0 60
Show 18175-2331 ARA2224 316 11.8 62
Show 18166-2354 ARA2223 7 11.0 63
Show 18181-2318 BRT1526 354 4.4 64
Show 18253-2434 RST4010 116 0.7 64
Show 18185-2309 TDT 787 241 0.6 69
Show 18180-2505 OCC 669 -1 0.1 70
Show 18189-2304 B 2443 59 8.3 71
Show 18208-2257 ARA1872 77 6.9 72
Show 18168-2500 BU 285 AB 313 1.6 78
Show 18168-2500 BU 285 AC 142 59.7 78
Show 18168-2500 BU 285 CD 16 2.1 78
Show 18168-2500 BU 285 CE 113 30.0 78
Show 18155-2344 ARA2222 314 13.2 79
Show 18229-2524 B 389 223 0.3 81
Show 18223-2248 ARA1876 84 10.8 82
Show 18231-2252 ARA1881 134 13.3 82
Show 18235-2252 ARA1883 216 6.5 84
Show 18196-2247 ARA1870 254 6.5 85
Show 18150-2430 SEE 348 297 1.4 86
Show 18153-2336 ARA2221 324 9.0 86
Show 18197-2244 BRT1528 321 4.2 86
Show 18274-2420 KPP 412 199 4.8 89
Show 18233-2245 BRT1533 65 1.9 89
Show 18168-2259 OCC 289 -1 0.0 91
Show 18236-2245 ARA1884 338 13.8 91
Show 18146-2344 ARA2219 303 4.8 91
Show 18241-2248 ARA1886 AB 64 15.2 91
Show 18241-2248 ARA1886 AC 152 7.9 91
Show 18185-2535 J 1738 208 7.6 94
Show 18264-2509 J 1742 233 4.6 95
Show 18143-2340 HLD 141 30 1.6 96
Show 18228-2235 ARA1880 244 10.3 97
Show 18220-2233 J 2208 170 6.4 97
Show 18151-2503 B 2860 BC -1 2.0 98
Show 18151-2503 B 2860 A,BC 52 26.4 98
Show 18281-2349 ARA2231 250 12.0 99
Show 18163-2253 BRT1522 95 6.0 100
Show 18140-2335 ARA2218 167 11.6 102
Show 18273-2503 LDS 639 353 21.1 103

 
 
WDS 18210-2408 : COMPONENTS
 
 
  A
B pa=123.3°
sep=0.20"
 
 
18210-2408 A
 
 
Componente originario normalizzato AB Name HD 168491 Coord arcsec 2000 182059.75-240806.2 Mag 10.7
Spectral class A8/9V (white) PmRA -7.00 PmDE -14.0 SAO 186685
Tycho2 6844-01818-1 HD 168491 DM CD-2414206
Tycho2
Tycho2 6844-01818-1 Pflag RAmdeg 275.24897491 DEmdeg -24.13506741
PmRA -7.1 PmDE -10.8 E RAmdeg 22 E DEmdeg 27
E pmRA 2.3 E pmDE 2.0 EpRAm 1989.77 EpDEm 1988.51
Num 6 Q RAmdeg 0.7 Q DEmdeg 1.2 Q pmRA 0.7
Q pmDE 1.2 BTmag 10.519 E BTmag 0.041 VTmag 9.985
E VTmag 0.040 Prox 999 TYC T HIP
CCDM RAdeg 275.24899083 DEdeg -24.13504583 EpRA 1990 1.89
EpDE 1990 1.81 E RAdeg 23.6 E DEdeg 30.2 Posflg
Corr -0.1
SAO
SAO 186685 DelFlag RA1950 PmRA1950 -0.0024
DE1950 PmDE1950 -0.007 Vmag 9.5 SpType A0
Double code Source 25 CatNum 12701 DM CD-2414206
DMcomp BDsup HD 168491 M HD 0
GC RA1950rad 4.79064534 DE1950rad -0.42164408 PmRA2000 -0.0024
PmDE2000 -0.007
CCDM
Ccdm 18210-2408 RComp Comp A Note1
Note2 Discov num DRAs -0.23 DDEs -5.7
R dRAs 41 Year Theta Rho
Obs 2 Vmag 10.3 Sp A0 PmNote *
PmRA -33 PmDE -7 Dm number -2414206 Cat1 CD
Name2 186685 Cat2 SAO HD 168491 M HD
ADS BDS M ADS BDS N IDS IDS 18149S2411A
HIC
 
 
18210-2408 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182059.76-240806.3 Mag 10.7 Calc coord yes
CCDM
Ccdm 18210-2408 RComp Comp B Note1
Note2 Discov num RST4007 DRAs DDEs
R dRAs Year 1936 Theta 124 Rho 0.2
Obs 2 Vmag 10.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18149S2411B
HIC