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Current system
20253-3052
TDT 2257


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

20253-3052 TDT 2257

 
 
20h 25m 20.20s -30° 51' 43.8" P.A. 261.00 sep 0.5 mag 11.20,11.34
 
 
Coord 2000 20253-3052 Discov num TDT2257 Comp Coord arcsec 2000 20 25 20.20 -30 51 43.8
Date first 1991 Date last 1991 Obs 1
Pa first 261 Pa last 261.4 P.A. Now (θ) 261.4°
Sep first 0.5 Sep last 0.5 Sep. Now (ρ) 0.5"
Mag pri 11.20 Mag sec 11.34 delta mag (ΔM) 0.14 Spectral class
Pri motion ra -050 Sec motion ra -050
Pri motion dec -021 Sec motion dec -021
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 7455-00813-1 Gaia DR2 6796427481225927296
 
 
WDS 20253-3052 TDT 2257 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
No records found.

 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20253-3052 TDT2257 1991 1 261 0.5 11.20 11.34 202520.20-305143.8

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

 
 
WDS 20253-3052 TDT 2257 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20253-3052 TDT 2257 : MEASURES
 
 
No records found.

 
 
WDS 20253-3052 : VIRTUAL EYEPIECE
 
 

20253-3052 TDT2257A mag 11.2 20253-3052 TDT2257B sep 0.4 P.A. 260.00 mag 11.34 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 20253-3052 : ALADIN DSS IMAGE @ 20h 25m 20.20s -30° 51' 43.8"
 
 
 
 
WDS 20253-3052 TDT 2257 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20253-3052 TDT2257 distance=0' 20275-3028 KPP2320 distance=38' 20280-3115 OL 26 distance=41' 20216-3104 HJ 5191 distance=50' 20229-3008 JSP 813 distance=54' 20295-3024 B 2886 distance=61' 20295-3001 HJ 5202 distance=74' 20193-3106 RST2138 distance=80' 20215-2946 TDS1063 distance=83' 20289-3205 SEE 419 distance=86' 20226-2928 JNN 325 distance=92' 20326-3107 PRO 230 distance=95' 20327-3123 HJ 5206 distance=100' 20240-3230 I 1418 distance=101' 20220-3224 JSP 812 distance=102' 20179-3132 KPP4189 distance=105' 20180-3147 UC 4141 distance=109' 20211-2916 BRT3091 distance=111' 20223-3243 B 2885 distance=118' 20205-2912 HJ 5188AB distance=119' 20205-2912 HJ 5188AC distance=119' 20205-2912 HJ 5188AD distance=119' 20205-2912 WIE 1BF distance=119' 20205-2912 HJ 5188DE distance=119' 20180-3206 RST2137 distance=121' 20202-2908 GLP 18 distance=124' 20345-3131 KPP1926 distance=124' 20155-3048 PRO 229 distance=127' 20310-2907 CHR 185 distance=128' 20276-3258 UC 4189 distance=130' 20254-2840 CHR 97 distance=132' 20353-3126 LDS5908 distance=133' 20347-3152 RST2145 distance=134' 20231-3303 B 2483 distance=135' 20162-2945 SKF1245 distance=137' 20329-3227 UC 4214 distance=137' 20156-3154 HJ 5181 distance=140' 20213-3304 RST2139 distance=142' 20231-3315 B 2484 distance=147' 20235-2827 DAW 152AB distance=148' 20169-3236 STN 64 distance=151' 20372-3114 HDS2943 distance=154' 20209-2828 LDS5904AB distance=154' 20209-2828 LDS5904Aa,Ab distance=154' 20182-3258 SEE 413BC distance=155' 20182-3258 SEE 413AB distance=155' 20325-2843 SKF2087AB distance=160' 20325-2843 DAM1043AC distance=160' 20291-3327 RST2142 distance=163' 20337-3255 TDT2374 distance=164' 20380-3122 B 992 distance=166' 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 20253-3052 TDT2257 261 0.5
Show 20275-3028 KPP2320 320 19.6 38
Show 20280-3115 OL 26 327 2.0 41
Show 20216-3104 HJ 5191 250 12.6 50
Show 20229-3008 JSP 813 269 5.3 54
Show 20295-3024 B 2886 199 7.2 61
Show 20295-3001 HJ 5202 84 15.6 74
Show 20193-3106 RST2138 60 2.4 80
Show 20215-2946 TDS1063 214 1.0 83
Show 20289-3205 SEE 419 97 9.5 86
Show 20226-2928 JNN 325 214 0.2 92
Show 20326-3107 PRO 230 104 6.5 95
Show 20327-3123 HJ 5206 192 16.4 100
Show 20240-3230 I 1418 256 0.7 101
Show 20220-3224 JSP 812 341 0.2 102
Show 20179-3132 KPP4189 346 1.4 105
Show 20180-3147 UC 4141 349 51.4 109
Show 20211-2916 BRT3091 52 2.8 111
Show 20223-3243 B 2885 358 6.9 118
Show 20205-2912 HJ 5188 AB 38 3.7 119
Show 20205-2912 HJ 5188 AC 321 27.3 119
Show 20205-2912 HJ 5188 AD 38 120.6 119
Show 20205-2912 WIE 1 BF 263 437.0 119
Show 20205-2912 HJ 5188 DE 186 4.7 119
Show 20180-3206 RST2137 162 1.4 121
Show 20202-2908 GLP 18 198 56.8 124
Show 20345-3131 KPP1926 56 15.1 124
Show 20155-3048 PRO 229 178 7.1 127
Show 20310-2907 CHR 185 266 0.0 128
Show 20276-3258 UC 4189 70 16.2 130
Show 20254-2840 CHR 97 10 0.1 132
Show 20353-3126 LDS5908 124 248.3 133
Show 20347-3152 RST2145 255 0.1 134
Show 20231-3303 B 2483 146 12.3 135
Show 20162-2945 SKF1245 228 24.6 137
Show 20329-3227 UC 4214 142 15.2 137
Show 20156-3154 HJ 5181 4 9.8 140
Show 20213-3304 RST2139 320 0.2 142
Show 20231-3315 B 2484 239 11.2 147
Show 20235-2827 DAW 152 AB 295 2.6 148
Show 20169-3236 STN 64 295 1.7 151
Show 20372-3114 HDS2943 75 2.1 154
Show 20209-2828 LDS5904 AB 49 254.6 154
Show 20209-2828 LDS5904 Aa,Ab 345 2.1 154
Show 20182-3258 SEE 413 BC 145 5.1 155
Show 20182-3258 SEE 413 AB 33 17.5 155
Show 20325-2843 SKF2087 AB 9 61.0 160
Show 20325-2843 DAM1043 AC 197 11.5 160
Show 20291-3327 RST2142 327 1.9 163
Show 20337-3255 TDT2374 131 3.0 164
Show 20380-3122 B 992 247 1.3 166

 
 
WDS 20253-3052 : COMPONENTS
 
 
  A
B pa=260.0°
sep=0.43"
 
 
20253-3052 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202520.20-305143.8 Mag 11.2 PmRA -50.00
PmDE -21.0 Tycho2 7455-00813-1
Tycho2
Tycho2 7455-00813-1 Pflag RAmdeg 306.33407544 DEmdeg -30.86216506
PmRA -49.6 PmDE -20.6 E RAmdeg 19 E DEmdeg 26
E pmRA 1.5 E pmDE 1.7 EpRAm 1986.34 EpDEm 1985.99
Num 5 Q RAmdeg 1.8 Q DEmdeg 1.2 Q pmRA 1.8
Q pmDE 1.1 BTmag 11.357 E BTmag 0.048 VTmag 10.561
E VTmag 0.035 Prox 999 TYC T HIP
CCDM RAdeg 306.33420361 DEdeg -30.86211667 EpRA 1990 1.84
EpDE 1990 1.75 E RAdeg 21.3 E DEdeg 29.2 Posflg
Corr -0.3
 
 
20253-3052 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202520.17-305143.9 Mag 11.34 PmRA -50.00
PmDE -21.0 Calc delta mag 0.14 Calc coord yes