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Current system
20040-2421
RSS 538


Nearby doubles
27' : 20059-2416
TDT1971

40' : 20045-2342
BWL 54AB

43' : 20059-2455
TDT1972

56' : 20003-2357
SEE 400

61' : 20084-2435
B 467

64' : 20071-2509
TDT1993

69' : 20030-2314
B 464

70' : 20090-2434
TDT2024

73' : 20073-2324
ARA2270

75' : 20000-2512
KPP3122

76' : 20077-2324
TDT2004

89' : 20061-2258
ARA2269

89' : 20105-2428
UC 4112

94' : 19589-2521
LDS4825

95' : 20046-2247
TDT1953

96' : 19574-2448
OCC 169

97' : 19578-2507
TDT1881

97' : 20101-2512
OCC 121

104' : 20097-2532
B 468AB

113' : 20035-2613
UC 4071

113' : 20032-2229
BRT1558

120' : 20088-2242
WHC 18

122' : 20113-2533
TDT2063

125' : 20068-2620
TDT1988

126' : 19564-2531
UC 4056

128' : 19587-2237
TDS1029



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

20040-2421 RSS 538

 
 
20h 04m 02.46s -24° 21' 11.2" P.A. 107.00 sep 11.5 mag 9.48,13.90 Sp K1III dist. 505.05 pc (1647.47 l.y.)
 
 
Coord 2000 20040-2421 Discov num RSS 538 Comp Coord arcsec 2000 20 04 02.46 -24 21 11.2
Date first 1977 Date last 2015 Obs 4
Pa first 110 Pa last 106.5 P.A. Now (θ) 106.5°
Sep first 11.7 Sep last 11.502 Sep. Now (ρ) 11.502"
Mag pri 9.48 Mag sec 13.90 delta mag (ΔM) 4.42 Spectral class K1III (yellow-orange)
Pri motion ra +002 Sec motion ra -006
Pri motion dec -019 Sec motion dec -006
Notes
rPM=0.799
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius SAO 188868 HIP 98812 Tycho2 6892-01591-1
Gaia DR2 6851677150248030080 HD 190079 CD CD-2415785 CP CP-24 6896
Distance 505.05 Distance ly 1647.47
 
 
WDS 20040-2421 RSS 538 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Rss1996 Pa - Rousseau, J.M., Perie, J.P., & Gachard, M.T. 1996A&AS..116..301R
Rss1996 A&AS 116, 301, 1996
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20040-2421 RSS 538 1998 2 108 11.6 9.16   K1III D 200402.46-242111.2
20040-2421 RSS 538 1999 3 108 11.8 9.48 13.90 K1III D 200402.46-242111.2
20040-2421 RSS 538 2015 4 107 11.5 9.48 13.90 K1III 200402.46-242111.2

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

 
 
WDS 20040-2421 RSS 538 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20040-2421 RSS 538 : MEASURES
 
 
No records found.

 
 
WDS 20040-2421 : VIRTUAL EYEPIECE
 
 

20040-2421 RSS 538A mag 9.48 Sp K1III 20040-2421 RSS 538B sep 10.6 P.A. 108.00 mag 13.9 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 20040-2421 : ALADIN DSS IMAGE @ 20h 04m 02.46s -24° 21' 11.2"
 
 
 
 
WDS 20040-2421 RSS 538 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20040-2421 RSS 538 distance=0' 20059-2416 TDT1971 distance=27' 20045-2342 BWL 54AB distance=40' 20045-2342 BWL 54AC distance=40' 20059-2455 TDT1972 distance=43' 20008-2411 TOK 917Aa,Ab distance=45' 20003-2357 SEE 400 distance=56' 20084-2435 B 467 distance=61' 20071-2509 TDT1993 distance=64' 20030-2314 B 464 distance=69' 20090-2434 TDT2024 distance=70' 20073-2324 ARA2270 distance=73' 20000-2512 KPP3122 distance=75' 20077-2324 TDT2004 distance=76' 20061-2258 ARA2269 distance=89' 20105-2428 UC 4112 distance=89' 19589-2521 LDS4825 distance=94' 20046-2247 TDT1953 distance=95' 19574-2448 OCC 169 distance=96' 19578-2507 TDT1881 distance=97' 20101-2512 OCC 121 distance=97' 20097-2532 B 468AB distance=104' 20035-2613 UC 4071 distance=113' 20032-2229 BRT1558 distance=113' 20088-2242 WHC 18 distance=120' 20113-2533 TDT2063 distance=122' 20068-2620 TDT1988 distance=125' 19564-2531 UC 4056 distance=126' 19587-2237 TDS1029 distance=128' 19550-2352 WHC 17 distance=128' 20059-2628 RST1058 distance=130' 20091-2613 MET 88AB distance=132' 20091-2613 MET 88AC distance=132' 20091-2613 VIG 19AD distance=132' 20091-2613 VIG 19AE distance=132' 20091-2613 VIG 19AF distance=132' 20091-2613 VIG 19AG distance=132' 20091-2613 VIG 19AH distance=132' 19594-2618 KPP4342AB distance=133' 19594-2618 KPP4342CB distance=134' 20031-2207 TDT1937 distance=135' 19543-2356 HJ 2904AB distance=136' 19543-2356 ALP 33AC distance=136' 19543-2356 GAA 23Aa,Ab distance=136' 19541-2430 B 455 distance=137' 19549-2325 ARA2268 distance=138' 20120-2548 RST1064 distance=140' 20012-2636 RST1055 distance=141' 19542-2339 ARA2267 distance=142' 20007-2204 KPP1108 distance=145' 20062-2159 UC 4084 distance=146' 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 20040-2421 RSS 538 107 11.5
Show 20059-2416 TDT1971 50 0.6 27
Show 20045-2342 BWL 54 AB 261 2.3 40
Show 20045-2342 BWL 54 AC 6.4 40
Show 20059-2455 TDT1972 211 2.9 43
Show 20008-2411 TOK 917 Aa,Ab 244 0.7 45
Show 20003-2357 SEE 400 25 1.0 56
Show 20084-2435 B 467 215 0.5 61
Show 20071-2509 TDT1993 73 0.5 64
Show 20030-2314 B 464 231 0.5 69
Show 20090-2434 TDT2024 87 0.6 70
Show 20073-2324 ARA2270 182 7.8 73
Show 20000-2512 KPP3122 355 1.7 75
Show 20077-2324 TDT2004 237 0.4 76
Show 20061-2258 ARA2269 221 11.2 89
Show 20105-2428 UC 4112 236 52.7 89
Show 19589-2521 LDS4825 329 58.1 94
Show 20046-2247 TDT1953 253 0.4 95
Show 19574-2448 OCC 169 -1 0.8 96
Show 19578-2507 TDT1881 29 1.6 97
Show 20101-2512 OCC 121 -1 0.1 97
Show 20097-2532 B 468 AB 359 4.6 104
Show 20035-2613 UC 4071 163 8.6 113
Show 20032-2229 BRT1558 113 4.1 113
Show 20088-2242 WHC 18 312 20.8 120
Show 20113-2533 TDT2063 32 0.5 122
Show 20068-2620 TDT1988 252 0.6 125
Show 19564-2531 UC 4056 215 47.0 126
Show 19587-2237 TDS1029 239 1.3 128
Show 19550-2352 WHC 17 104 11.9 128
Show 20059-2628 RST1058 139 1.6 130
Show 20091-2613 MET 88 AB 148 10.4 132
Show 20091-2613 MET 88 AC 224 10.8 132
Show 20091-2613 VIG 19 AD 140 4.8 132
Show 20091-2613 VIG 19 AE 74 7.6 132
Show 20091-2613 VIG 19 AF 352 8.1 132
Show 20091-2613 VIG 19 AG 305 9.0 132
Show 20091-2613 VIG 19 AH 75 12.3 132
Show 19594-2618 KPP4342 AB 123 2.0 133
Show 19594-2618 KPP4342 CB 169 46.5 134
Show 20031-2207 TDT1937 131 1.1 135
Show 19543-2356 HJ 2904 AB 34 45.8 136
Show 19543-2356 ALP 33 AC 108 41.6 136
Show 19543-2356 GAA 23 Aa,Ab 14 0.0 136
Show 19541-2430 B 455 265 2.4 137
Show 19549-2325 ARA2268 2 2.6 138
Show 20120-2548 RST1064 257 3.8 140
Show 20012-2636 RST1055 245 1.9 141
Show 19542-2339 ARA2267 197 12.0 142
Show 20007-2204 KPP1108 355 8.8 145
Show 20062-2159 UC 4084 284 44.4 146

 
 
WDS 20040-2421 : COMPONENTS
 
 
  A
B pa=108.0°
sep=10.56"
 
 
20040-2421 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 200402.46-242111.2 Mag 9.48 Spectral class K1III (yellow-orange)
PmRA 2.00 PmDE -19.0 SAO 188868 HIP 98812
Tycho2 6892-01591-1 HD 190079 CD CD-2415785 CP CP-24 6896
Tycho2
Tycho2 6892-01591-1 Pflag RAmdeg 301.01025848 DEmdeg -24.35315374
PmRA 1.5 PmDE -21.9 E RAmdeg 12 E DEmdeg 15
E pmRA 1.4 E pmDE 1.4 EpRAm 1988.78 EpDEm 1987.32
Num 11 Q RAmdeg 0.7 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.8 BTmag 10.963 E BTmag 0.049 VTmag 9.289
E VTmag 0.019 Prox 999 TYC T HIP 98812
CCDM RAdeg 301.01025361 DEdeg -24.35310333 EpRA 1990 1.77
EpDE 1990 1.60 E RAdeg 13.2 E DEdeg 17.1 Posflg
Corr -0.3
SAO
SAO 188868 DelFlag RA1950 PmRA1950 0.0004
DE1950 PmDE1950 0.002 Vmag 8.6 SpType K5
Double code Source 25 CatNum 13967 DM CD-2415785
DMcomp BDsup HD 190079 M HD 0
GC RA1950rad 5.24053702 DE1950rad -0.42751107 PmRA2000 0.0004
PmDE2000 0.001
Hipparcos
Catalog H HIP 98812 Proxy RAhms 20 04 02.46
DEdms -24 21 11.2 Vmag 9.14 VarFlag R Vmag H
RAdeg 301.01 DEdeg -24.3531 AstroRef Plx 1.36
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 190079 BD
CD CD-2415785 CP CP-24 6896 Dm number -2415785 VIred 1.16
SpType K1III R SpType Coord arcsec 2000 200402.46-242111.2
Hipparcos 2
HIP 98812 Sn 5 So 0 Nc 1
RArad 5.2536200994 DErad -0.4250417944 Plx 1.98 PmRA 1.02
PmDE -23.69 E RArad 1.2 E DErad 0.79 E Plx 1.31
E pmRA 1.41 E pmDE 0.94 Hpmag 9.2977 E Hpmag 0.0024
SHp 0.021 VA 0 BV 1.338 E BV 0.042
VI 1.3
CCDM
Ccdm 20040-2421 RComp Comp A Note1
Note2 Discov num DRAs 2.42 DDEs -11.5
R dRAs 40 Year Theta Rho
Obs 2 Vmag 8.7 Sp K1 PmNote
PmRA 6 PmDE -25 Dm number -2415785 Cat1 CD
Name2 188868 Cat2 SAO HD 190079 M HD
ADS BDS M ADS BDS N IDS * IDS 19580S2438A
HIC 98812
 
 
20040-2421 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200403.20-242114.5 Mag 13.9 PmRA -6.00
PmDE -6.0 Calc delta mag 4.42 Calc coord yes
CCDM
Ccdm 20040-2421 RComp Comp B Note1
Note2 Discov num RSU DRAs 3.22 DDEs -14.9
R dRAs 40 Year 1977 Theta 110 Rho 11.7
Obs Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS * IDS 19580S2438B
HIC