20452-0331 AHD 28

 
 
20h 45m 10.58s -03° 31' 21.5" P.A. 307.00 sep 37.4 mag 10.10,10.70 Sp F9V+G2V
 
 
Coord 2000 20452-0331 Discov num AHD  28 Comp Coord arcsec 2000 20 45 10.58 -03 31 21.5
Date first 1893 Date last 2016 Obs 16
Pa first 307 Pa last 307.4 P.A. Now (θ) 307.4°
Sep first 37.9 Sep last 37.372 Sep. Now (ρ) 37.372"
Mag pri 10.10 Mag sec 10.70 delta mag (ΔM) 0.6 Spectral class F9V+G2V (yellow-white/yellow)
Pri motion ra +022 Sec motion ra +024
Pri motion dec -023 Sec motion dec -023
Notes V (Proper motion indicates physical)
rPM=0.06 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius Tycho2 5182-01026-1 Gaia DR2 6915081995795905920
 
 
WDS 20452-0331 AHD 28 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ahd2010 Mb u Ahad, A. ...................
Ahd2010 Webb Soc., Double Star Circ. 18, 2010
Ahd2011 Mb u Ahad, A. ...................
Ahd2011 +Pa Webb Soc., Double Star Circ. 19, 2011
Ahd2012 Mb u Ahad, A. ...................
Ahd2012 +P+ Webb Soc., Double Star Circ. 20, 2012
Ahd2012 +C
Ahd2012b Pa j Ahad, A. 2012JDSO....8..247A
Ahd2012b +P JDSO 8, 247, 2012
Ahd2012c Pa w Ahad, A. 2012JDSO....8..332A
Ahd2012c +P JDSO 8, 332, 2012
Ahd2013a Pa w Ahad, A. 2013JDSO....9..122A
Ahd2013a +C JDSO 9, 122, 2013
Ahd2013b C u Ahad, A. ...................
Ahd2013b Webb Soc., Double Star Circ. 21, 2013
Ahd2013c E2 w Ahad, A. 2013JDSO....9..173A
Ahd2013c JDSO 9, 173, 2013
Ahd2013d E2 u Ahad, A. 2013JDSO....9..247A
Ahd2013d +C JDSO 9, 247, 2013
Ahd2013e E2 w Ahad, A. 2013JDSO....9..274A
Ahd2013e +P JDSO 9, 274, 2013
Ahd2014a E2 j Ahad, A. 2014JDSO...10..122A
Ahd2014a +P JDSO 10, 122, 2014
Ahd2014b E2 u Ahad, A. 2014JDSO...10..134A
Ahd2014b JDSO 10, 134, 2014
Ahd2014d E2 u Ahad, A. ...................
Ahd2014d +Pp Webb Soc., Double Star Circ. 22, 2014
Ahd2014e E2 u Ahad, A. ...................
Ahd2014e Webb Soc., Double Star Circ. 22, 2014
Ahd2014f E2 u Ahad, A. 2014JDSO...10..254A
Ahd2014f JDSO 10, 254, 2014
Ahd2014g E2 - Ahad, A. 2014JDSO...10..311A
Ahd2014g +P JDSO 10, 311, 2014 (all data are also in Ahd2014c)
Ahd2014h E2 w Ahad, A. 2014JDSO...10..314A
Ahd2014h JDSO 10, 314, 2014
Ahd2015a E2 w Ahad, A. 2015JDSO...11...33A
Ahd2015a +C JDSO 11, 33, 2015
Ahd2015b C u Ahad, A. 2015JDSO...11...70A
Ahd2015b JDSO 11, 70, 2015
Ahd2015c C - Ahad, A. 2015JDSO...11...78A
Ahd2015c JDSO 11, 78, 2015
Ahd2015d C u Ahad, A. ...................
Ahd2015d Webb Soc., Double Star Circ. 23, 26, 2015
Ahd2015e C u Ahad, A. ...................
Ahd2015e Webb Soc., Double Star Circ. 23, 30, 2015
Ahd2016a C u Ahad, A. 2016JDSO...12..162A
Ahd2016a JDSO 12, 162, 2016
Ahd2016b C u Ahad, A. 2016JDSO...12..165A
Ahd2016b +E2 JDSO 12, 165, 2016
Ahd2016b +Pp
Ahd2016c C u Ahad, A. ...................
Ahd2016c Webb Soc., Double Star Circ. 24, 22, 2016
Ahd2020 Hg j Ahad, A. .
Ahd2020 Webb Soc., Double Star Circ. 28, 43, 2020
Ahd2020b C u Ahad, A. 2020JDSO...16..304A
Ahd2020b +E2 JDSO 16, 304, 2020
Ahd2020b +Pp
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20452-0331 AHD 28 2010 7 307 37.4 10.10 10.70 F9V+G2V V 204510.58-033121.5
20452-0331 AHD 28 2015 13 307 37.5 10.10 10.70 F9V+G2V V 204510.58-033121.5
20452-0331 AHD 28 2016 16 307 37.4 10.10 10.70 F9V+G2V V 204510.58-033121.5

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

 
 
WDS 20452-0331 AHD 28 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20452-0331 AHD 28 : MEASURES
 
 
No records found.

 
 
WDS 20452-0331 : VIRTUAL EYEPIECE
 
 

20452-0331 AHD  28A mag 10.1 Sp F9V 20452-0331 AHD  28B sep 37.3 P.A. 307.50 mag 10.7 Sp G2V virtual eyepiece
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Radius:
Components only
 
 
WDS 20452-0331 : ALADIN DSS IMAGE @ 20h 45m 10.58s -03° 31' 21.5"
 
 
 
 
WDS 20452-0331 AHD 28 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20452-0331  AHD  28 distance=0' 20455-0332  AHD  29 distance=5' 20463-0258  LDS 724 distance=39' 20424-0323  RST4678 distance=42' 20474-0359  TDT2540 distance=44' 20423-0344  KPP 476 distance=46' 20421-0336  RST4677 distance=46' 20473-0408  LDS4858 distance=49' 20469-0417  J  1709 distance=50' 20481-0302  A   174 distance=53' 20453-0239  BRT 506 distance=53' 20456-0426  OCC9021 distance=56' 20481-0410  J  1710 distance=57' 20482-0255  TDT2549 distance=58' 20428-0418  UC 4265 distance=59' 20492-0302  RST4682 distance=67' 20425-0233  WRH  13 distance=71' 20405-0349  RST4674 distance=73' 20417-0424  BU  267 distance=74' 20418-0430  HJ  921 distance=78' 20458-0454  UC 4282AB distance=84' 20494-0235  WRH  14 distance=86' 20512-0401  UC 4308 distance=95' 20489-0214  HO  142AB distance=96' 20489-0214  HO  142AC distance=96' 20419-0458  RST4676 distance=100' 20447-0511  HJ  924 distance=101' 20402-0222  KPP4209AB distance=102' 20523-0324  CVR 876 distance=108' 20411-0201  GWP2983 distance=110' 20450-0140  LDS 722 distance=111' 20375-0303  J  1775AB distance=118' 20375-0303  BRT 505AC distance=118' 20375-0303  J  1775AD distance=118' 20375-0303  BRT 505BC distance=118' 20375-0303  J  1775BD distance=118' 20468-0527  KPP 478 distance=119' 20374-0254  TOR  27 distance=123' 20399-0155  UC 4249 distance=125' 20371-0258  TDT2427 distance=125' 20498-0146  TDT2566 distance=126' 20525-0438  TDS1106 distance=128' 20532-0240  BRT 508 distance=131' 20365-0311  TOR  26 distance=132' 20539-0323  RST4686 distance=132' 20369-0416  LDS1475 distance=133' 20367-0250  UC 4231 distance=134' 20363-0305  KPP1332 distance=137' 20441-0116  GWP2991 distance=137' 20372-0225  BRT 503 distance=137' 20534-0227  BRT 509AB distance=139' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20452-0331 AHD 28 307 37.4
Show 20455-0332 AHD 29 137 20.9 5
Show 20463-0258 LDS 724 135 74.9 39
Show 20424-0323 RST4678 349 2.8 42
Show 20474-0359 TDT2540 63 0.6 44
Show 20423-0344 KPP 476 141 3.9 46
Show 20421-0336 RST4677 122 4.4 46
Show 20473-0408 LDS4858 11 17.3 49
Show 20469-0417 J 1709 216 8.3 50
Show 20481-0302 A 174 357 0.6 53
Show 20453-0239 BRT 506 277 4.1 53
Show 20456-0426 OCC9021 273 0.0 56
Show 20481-0410 J 1710 205 8.5 57
Show 20482-0255 TDT2549 181 2.0 58
Show 20428-0418 UC 4265 32 50.1 59
Show 20492-0302 RST4682 2 0.9 67
Show 20425-0233 WRH 13 101 1.8 71
Show 20405-0349 RST4674 118 5.1 73
Show 20417-0424 BU 267 237 1.9 74
Show 20418-0430 HJ 921 220 9.4 78
Show 20458-0454 UC 4282 AB 209 41.1 84
Show 20494-0235 WRH 14 193 2.2 86
Show 20512-0401 UC 4308 49 15.9 95
Show 20489-0214 HO 142 AB 8 1.0 96
Show 20489-0214 HO 142 AC 290 21.3 96
Show 20419-0458 RST4676 188 0.3 100
Show 20447-0511 HJ 924 85 8.1 101
Show 20402-0222 KPP4209 AB 250 2.2 102
Show 20523-0324 CVR 876 284 10.8 108
Show 20411-0201 GWP2983 178 12.8 110
Show 20450-0140 LDS 722 266 25.1 111
Show 20375-0303 J 1775 AB 352 4.1 118
Show 20375-0303 BRT 505 AC 36 8.8 118
Show 20375-0303 J 1775 AD 249 18.3 118
Show 20375-0303 BRT 505 BC 56 7.0 118
Show 20375-0303 J 1775 BD 238 19.7 118
Show 20468-0527 KPP 478 273 3.8 119
Show 20374-0254 TOR 27 233 2.9 123
Show 20399-0155 UC 4249 339 14.0 125
Show 20371-0258 TDT2427 92 1.0 125
Show 20498-0146 TDT2566 247 0.8 126
Show 20525-0438 TDS1106 252 1.4 128
Show 20532-0240 BRT 508 208 8.2 131
Show 20365-0311 TOR 26 75 16.5 132
Show 20539-0323 RST4686 104 0.4 132
Show 20369-0416 LDS1475 259 21.2 133
Show 20367-0250 UC 4231 75 24.4 134
Show 20363-0305 KPP1332 228 10.1 137
Show 20441-0116 GWP2991 16 13.8 137
Show 20372-0225 BRT 503 73 4.6 137
Show 20534-0227 BRT 509 AB 127 5.0 139

 
 
WDS 20452-0331 : COMPONENTS
 
 
  A
B pa=307.5°
sep=37.33"
 
 
20452-0331 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204510.58-033121.5 Mag 10.1 Spectral class F9V (yellow-white)
PmRA 22.00 PmDE -23.0 Tycho2 5182-01026-1
Tycho2
Tycho2 5182-01026-1 Pflag RAmdeg 311.29408351 DEmdeg -3.52264495
PmRA 27.5 PmDE -21.6 E RAmdeg 20 E DEmdeg 25
E pmRA 1.6 E pmDE 1.6 EpRAm 1989.92 EpDEm 1988.76
Num 4 Q RAmdeg 0.4 Q DEmdeg 0.7 Q pmRA 0.4
Q pmDE 0.7 BTmag 10.824 E BTmag 0.039 VTmag 10.227
E VTmag 0.033 Prox 374 TYC T HIP
CCDM RAdeg 311.29401917 DEdeg -3.52259250 EpRA 1990 1.60
EpDE 1990 1.25 E RAdeg 19.7 E DEdeg 25.0 Posflg
Corr -0.1
 
 
20452-0331 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204508.60-033058.8 Mag 10.7 Spectral class G2V (yellow)
PmRA 24.00 PmDE -23.0 Tycho2 5182-01991-1 Calc delta mag 0.6
Calc coord yes
Tycho2
Tycho2 5182-01991-1 Pflag RAmdeg 311.28581414 DEmdeg -3.51633344
PmRA 27.5 PmDE -20.8 E RAmdeg 30 E DEmdeg 37
E pmRA 1.7 E pmDE 1.8 EpRAm 1988.54 EpDEm 1986.78
Num 4 Q RAmdeg 2.2 Q DEmdeg 1.0 Q pmRA 2.4
Q pmDE 1.0 BTmag 11.393 E BTmag 0.061 VTmag 10.708
E VTmag 0.050 Prox 374 TYC T HIP
CCDM RAdeg 311.28574944 DEdeg -3.51628278 EpRA 1990 1.59
EpDE 1990 1.24 E RAdeg 29.7 E DEdeg 38.1 Posflg
Corr -0.1