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Current system
20521-3517
RST 3270


Nearby doubles
9' : 20518-3523
KPP1661

14' : 20532-3521
BRT1814

26' : 20525-3451
NSN 490

31' : 20501-3534
HDS2969

35' : 20506-3545
TDT2573

43' : 20518-3434
B 504

49' : 20521-3428
B 999

52' : 20480-3523
B 2892

62' : 20571-3526
B 510

62' : 20516-3618
B 998

78' : 20551-3408
HJ 5234

79' : 20575-3435
BRT1816

82' : 20583-3548
WSP 133AB

84' : 20521-3353
SEE 430

85' : 20458-3443
HJ 5219

86' : 20452-3510
SEE 428

91' : 20506-3645
B 2893

93' : 20570-3406
RST3272

94' : 20500-3347
HJ 5224

96' : 20478-3636
LWR 17

97' : 20598-3452
TDT2682

104' : 20437-3509
KPP 941

105' : 20539-3658
B 507

105' : 21007-3518
BU 765

107' : 20436-3532
HJ 5215

110' : 20442-3607
UC 4273



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

20521-3517 RST 3270

 
 
20h 52m 09.77s -35° 16' 18.6" P.A. 338.00 sep 2.5 mag 10.75,12.90
 
 
Coord 2000 20521-3517 Discov num RST3270 Comp Coord arcsec 2000 20 52 09.77 -35 16 18.6
Date first 1935 Date last 2016 Obs 4
Pa first 336 Pa last 337.9 P.A. Now (θ) 337.9°
Sep first 2.3 Sep last 2.493 Sep. Now (ρ) 2.493"
Mag pri 10.75 Mag sec 12.90 delta mag (ΔM) 2.15 Spectral class
Pri motion ra +042 Sec motion ra
Pri motion dec +010 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium Tycho2 7466-00470-1 Gaia DR2 6778883158296904960
 
 
WDS 20521-3517 RST 3270 : 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
20521-3517 RST3270 1945 2 333 2.4 10.75 12.90 205209.77-351618.6
20521-3517 RST3270 2015 3 338 2.5 10.75 12.90 205209.77-351618.6
20521-3517 RST3270 2016 4 338 2.5 10.75 12.90 205209.77-351618.6

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

 
 
WDS 20521-3517 RST 3270 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20521-3517 RST 3270 : MEASURES
 
 
No records found.

 
 
WDS 20521-3517 : VIRTUAL EYEPIECE
 
 

20521-3517 RST3270A mag 10.75 20521-3517 RST3270B sep 2.4 P.A. 341.70 mag 12.9 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20521-3517 : ALADIN DSS IMAGE @ 20h 52m 09.77s -35° 16' 18.6"
 
 
 
 
WDS 20521-3517 RST 3270 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20521-3517 RST3270 distance=0' 20518-3523 KPP1661 distance=9' 20532-3521 BRT1814 distance=14' 20525-3451 NSN 490 distance=26' 20501-3534 HDS2969 distance=31' 20506-3545 TDT2573 distance=35' 20518-3434 B 504 distance=43' 20521-3428 B 999 distance=49' 20480-3523 B 2892 distance=52' 20571-3526 B 510 distance=62' 20516-3618 B 998 distance=62' 20551-3408 HJ 5234 distance=78' 20575-3435 BRT1816 distance=79' 20583-3548 WSP 133AB distance=82' 20583-3548 WSP 133AC distance=82' 20583-3548 WSP 133AD distance=82' 20583-3548 WSP 133AE distance=82' 20521-3353 SEE 430 distance=84' 20458-3443 HJ 5219 distance=85' 20452-3510 SEE 428 distance=86' 20506-3645 B 2893 distance=91' 20570-3406 RST3272 distance=93' 20500-3347 HJ 5224 distance=94' 20478-3636 LWR 17 distance=96' 20598-3452 TDT2682 distance=97' 20437-3509 KPP 941 distance=104' 20539-3658 B 507 distance=105' 21007-3518 BU 765 distance=105' 20436-3532 HJ 5215 distance=107' 20442-3607 UC 4273 distance=110' 20565-3340 B 1002 distance=111' 20588-3402 RST3274 distance=111' 21012-3511 TOK 344AB distance=112' 21012-3511 TOK 344Aa,Ab distance=112' 21002-3408 KPP4219 distance=121' 20542-3714 BRT1815 distance=121' 20579-3339 RED 26 distance=121' 20467-3336 HDS2960AB distance=122' 20467-3336 SKF2090AC distance=122' 20501-3315 UC 4305 distance=125' 20502-3719 BRT1813 distance=125' 20448-3653 UC 4278 distance=132' 20517-3303 UC 4311 distance=134' 20582-3711 WIS 345 distance=136' 20556-3304 LDS6419 distance=139' 20510-3256 RST2162 distance=142' 20592-3325 RST2170 distance=142' 21031-3423 UC 4366 distance=145' 20595-3718 JSP 820 distance=151' 20529-3245 B 1000 distance=152' 20478-3255 WIS 343 distance=152' 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 20521-3517 RST3270 338 2.5
Show 20518-3523 KPP1661 42 12.8 9
Show 20532-3521 BRT1814 258 4.0 14
Show 20525-3451 NSN 490 73 2.0 26
Show 20501-3534 HDS2969 174 0.1 31
Show 20506-3545 TDT2573 74 0.4 35
Show 20518-3434 B 504 38 2.3 43
Show 20521-3428 B 999 328 1.3 49
Show 20480-3523 B 2892 104 8.1 52
Show 20571-3526 B 510 327 3.4 62
Show 20516-3618 B 998 288 0.5 62
Show 20551-3408 HJ 5234 90 15.1 78
Show 20575-3435 BRT1816 180 3.7 79
Show 20583-3548 WSP 133 AB 212 2.4 82
Show 20583-3548 WSP 133 AC 158 16.3 82
Show 20583-3548 WSP 133 AD 339 16.4 82
Show 20583-3548 WSP 133 AE 354 16.6 82
Show 20521-3353 SEE 430 345 14.5 84
Show 20458-3443 HJ 5219 323 8.5 85
Show 20452-3510 SEE 428 188 4.4 86
Show 20506-3645 B 2893 297 9.7 91
Show 20570-3406 RST3272 23 2.2 93
Show 20500-3347 HJ 5224 165 20.2 94
Show 20478-3636 LWR 17 20 9.0 96
Show 20598-3452 TDT2682 151 2.2 97
Show 20437-3509 KPP 941 156 7.7 104
Show 20539-3658 B 507 215 0.5 105
Show 21007-3518 BU 765 72 0.8 105
Show 20436-3532 HJ 5215 183 22.8 107
Show 20442-3607 UC 4273 22 17.6 110
Show 20565-3340 B 1002 324 0.6 111
Show 20588-3402 RST3274 358 1.8 111
Show 21012-3511 TOK 344 AB 61 186.0 112
Show 21012-3511 TOK 344 Aa,Ab 351 0.1 112
Show 21002-3408 KPP4219 358 2.1 121
Show 20542-3714 BRT1815 207 4.2 121
Show 20579-3339 RED 26 186 18.9 121
Show 20467-3336 HDS2960 AB 158 0.2 122
Show 20467-3336 SKF2090 AC 190 88.1 122
Show 20501-3315 UC 4305 302 143.4 125
Show 20502-3719 BRT1813 296 5.4 125
Show 20448-3653 UC 4278 250 22.0 132
Show 20517-3303 UC 4311 335 26.1 134
Show 20582-3711 WIS 345 7 35.3 136
Show 20556-3304 LDS6419 34 4.7 139
Show 20510-3256 RST2162 76 0.8 142
Show 20592-3325 RST2170 33 1.0 142
Show 21031-3423 UC 4366 224 16.9 145
Show 20595-3718 JSP 820 247 1.4 151
Show 20529-3245 B 1000 312 3.6 152
Show 20478-3255 WIS 343 9 525.5 152

 
 
WDS 20521-3517 : COMPONENTS
 
 
  A
B pa=341.7°
sep=2.43"
 
 
20521-3517 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205209.77-351618.6 Mag 10.75 PmRA 42.00
PmDE 10.0 Tycho2 7466-00470-1
Tycho2
Tycho2 7466-00470-1 Pflag RAmdeg 313.04070960 DEmdeg -35.27183453
PmRA 42.0 PmDE 10.3 E RAmdeg 28 E DEmdeg 32
E pmRA 1.6 E pmDE 1.8 EpRAm 1979.65 EpDEm 1975.88
Num 5 Q RAmdeg 2.0 Q DEmdeg 2.1 Q pmRA 2.1
Q pmDE 2.1 BTmag 11.476 E BTmag 0.074 VTmag 10.746
E VTmag 0.063 Prox 999 TYC T HIP
CCDM RAdeg 313.04060250 DEdeg -35.27188083 EpRA 1990 1.66
EpDE 1990 1.42 E RAdeg 36.6 E DEdeg 47.8 Posflg
Corr -0.2
 
 
20521-3517 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205209.71-351616.3 Mag 12.9 Calc delta mag 2.15
Calc coord yes