20251+0728 UC 4173

 
 
20h 25m 04.04s +07 28' 23.6" P.A. 359.00 sep 42.9 mag 7.81,14.21 Sp F0 dist. 198.02 pc (645.94 l.y.)
 
 
Coord 2000 20251+0728 Discov num UC 4173 Comp Coord arcsec 2000 20 25 04.04 +07 28 23.6
Date first 2000 Date last 2015 Obs 4
Pa first 358 Pa last 358.5 P.A. Now (θ) 358.5°
Sep first 42.5 Sep last 42.868 Sep. Now (ρ) 42.868"
Mag pri 7.81 Mag sec 14.21 delta mag (ΔM) 6.4 Spectral class F0 (yellow-white)
Pri motion ra -030 Sec motion ra -050
Pri motion dec -040 Sec motion dec -039
Notes V (Proper motion indicates physical)
rPM=0.316
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus SAO 125780 HIP 100712 Tycho2 0509-00139-1
Gaia DR2 1751923555247825280 HD 194388 BD BD+07 4462 Distance 198.02
Distance ly 645.94
 
 
WDS 20251+0728 UC 4173 : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 UC USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4)
1 UC Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G.,
1 UC & Zacharias, M.I. (UCAC4 Catalog)
13 UC Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C.,
13 UC DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C.,
13 UC Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20251+0728 UC 4173 2000 2 358 42.5 8.70 14.20 V 202504.04+072823.6
20251+0728 UC 4173 2010 3 358 42.6 7.81 14.21 F0 V 202504.04+072823.6
20251+0728 UC 4173 2015 4 359 42.9 7.81 14.21 F0 V 202504.04+072823.6

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

 
 
WDS 20251+0728 UC 4173 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20251+0728 UC 4173 : MEASURES
 
 
No records found.

 
 
WDS 20251+0728 : VIRTUAL EYEPIECE
 
 

20251+0728 UC 4173A mag 7.81 Sp F0 20251+0728 UC 4173B sep 42.9 P.A. 358.50 mag 14.21 virtual eyepiece
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Radius:
Components only
 
 
WDS 20251+0728 : ALADIN DSS IMAGE @ 20h 25m 04.04s +07 28' 23.6"
 
 
 
 
WDS 20251+0728 UC 4173 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20251+0728  UC 4173 distance=1' 20264+0741  UC 4183 distance=24' 20254+0700  UC 4176 distance=30' 20256+0801  LDS4842 distance=34' 20276+0745  J  1297 distance=41' 20278+0734  GWP2954 distance=42' 20264+0810  GWP2947AB distance=46' 20230+0803  UC 4163 distance=47' 20258+0818  UC 4178 distance=51' 20277+0803  HJ 2966 distance=51' 20284+0746  BRT2186 distance=53' 20262+0827  UC 4180 distance=62' 20290+0710  A   610 distance=63' 20209+0727  UC 4153 distance=63' 20269+0826  LDS4843 distance=64' 20213+0808  GRV 333 distance=69' 20264+0620  GWP2946 distance=72' 20218+0635  TDT2207 distance=73' 20300+0730  NSN 733 distance=74' 20301+0730  LDS4846 distance=75' 20198+0716  GRV 331 distance=79' 20253+0847  NSN 732 distance=79' 20300+0655  LDS4845 distance=82' 20256+0604  UC 4177 distance=85' 20202+0815  DAM 210 distance=87' 20201+0820  HJ 2949AB distance=90' 20201+0820  DAM 209AC distance=90' 20211+0837  HJ 2953 distance=91' 20259+0902  J  3084 distance=95' 20292+0840  GWP2959 distance=95' 20314+0701  J  3221 distance=97' 20185+0750  SKF1865 distance=100' 20186+0704  HJ 2945 distance=101' 20271+0551  HJ 2963 distance=102' 20321+0737  UC 4206 distance=105' 20309+0626  DAE  10AB distance=108' 20309+0626  WSP   2AC distance=108' 20309+0626  WSP   2AD distance=108' 20309+0626  WSP   2AE distance=108' 20309+0626  WSP   2AF distance=108' 20245+0916  HJ 2959 distance=108' 20234+0535  WHC  19 distance=115' 20233+0534  OPI  24 distance=118' 20183+0627  DAM 208AB distance=118' 20183+0627  DAM 208AC distance=118' 20185+0626  J  2191 distance=119' 20327+0656  HDS2934 distance=119' 20246+0531  BU  664AB distance=119' 20246+0531  FOX9034AC distance=119' 20280+0923  TDT2300 distance=123' 20329+0647  UC 4213 distance=124' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20251+0728 UC 4173 359 42.9 1
Show 20264+0741 UC 4183 195 59.7 24
Show 20254+0700 UC 4176 120 51.9 30
Show 20256+0801 LDS4842 218 101.0 34
Show 20276+0745 J 1297 2 1.0 41
Show 20278+0734 GWP2954 290 50.4 42
Show 20264+0810 GWP2947 AB 43.1 46
Show 20230+0803 UC 4163 291 56.4 47
Show 20258+0818 UC 4178 267 86.2 51
Show 20277+0803 HJ 2966 259 3.6 51
Show 20284+0746 BRT2186 173 5.0 53
Show 20262+0827 UC 4180 303 9.7 62
Show 20290+0710 A 610 99 0.6 63
Show 20209+0727 UC 4153 201 23.7 63
Show 20269+0826 LDS4843 167 15.3 64
Show 20213+0808 GRV 333 193 60.7 69
Show 20264+0620 GWP2946 30 25.6 72
Show 20218+0635 TDT2207 258 0.9 73
Show 20300+0730 NSN 733 133 39.4 74
Show 20301+0730 LDS4846 313 39.4 75
Show 20198+0716 GRV 331 323 47.5 79
Show 20253+0847 NSN 732 235 3.3 79
Show 20300+0655 LDS4845 27 83.4 82
Show 20256+0604 UC 4177 278 14.3 85
Show 20202+0815 DAM 210 321 3.9 87
Show 20201+0820 HJ 2949 AB 302 7.5 90
Show 20201+0820 DAM 209 AC 224 12.7 90
Show 20211+0837 HJ 2953 260 26.3 91
Show 20259+0902 J 3084 87 6.0 95
Show 20292+0840 GWP2959 280 37.8 95
Show 20314+0701 J 3221 167 3.9 97
Show 20185+0750 SKF1865 240 56.6 100
Show 20186+0704 HJ 2945 55 10.1 101
Show 20271+0551 HJ 2963 209 9.5 102
Show 20321+0737 UC 4206 33 73.1 105
Show 20309+0626 DAE 10 AB 103 0.7 108
Show 20309+0626 WSP 2 AC 114 11.6 108
Show 20309+0626 WSP 2 AD 183 13.6 108
Show 20309+0626 WSP 2 AE 16 18.5 108
Show 20309+0626 WSP 2 AF 176 19.8 108
Show 20245+0916 HJ 2959 262 7.4 108
Show 20234+0535 WHC 19 178 2.0 115
Show 20233+0534 OPI 24 351 9.2 118
Show 20183+0627 DAM 208 AB 8 4.9 118
Show 20183+0627 DAM 208 AC 298 5.3 118
Show 20185+0626 J 2191 134 4.8 119
Show 20327+0656 HDS2934 75 1.2 119
Show 20246+0531 BU 664 AB 287 9.0 119
Show 20246+0531 FOX9034 AC 89 35.6 119
Show 20280+0923 TDT2300 101 0.5 123
Show 20329+0647 UC 4213 204 9.0 124

 
 
WDS 20251+0728 : COMPONENTS
 
 
  A
B pa=358.5°
sep=42.87"
 
 
20251+0728 A
 
 
Coord arcsec 2000 202504.04+072823.6 Mag 7.81 Spectral class F0 (yellow-white) PmRA -30.00
PmDE -40.0 SAO 125780 HIP 100712 Tycho2 0509-00139-1
HD 194388 BD BD+07 4462
Tycho2
Tycho2 0509-00139-1 Pflag RAmdeg 306.26680955 DEmdeg 7.47320925
PmRA -30.3 PmDE -39.7 E RAmdeg 5 E DEmdeg 6
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.27 EpDEm 1991.12
Num 10 Q RAmdeg 0.6 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.8 BTmag 8.197 E BTmag 0.017 VTmag 7.810
E VTmag 0.012 Prox 742 TYC T HIP 100712
CCDM RAdeg 306.26688167 DEdeg 7.47330417 EpRA 1990 1.53
EpDE 1990 1.41 E RAdeg 5.4 E DEdeg 5.9 Posflg
Corr -0.2
SAO
SAO 125780 DelFlag RA1950 PmRA1950 -0.002
DE1950 PmDE1950 -0.025 Vmag 8.2 SpType F0
Double code Source 32 CatNum 10059 DM BD+07 4462
DMcomp BDsup HD 194388 M HD 0
GC RA1950rad 5.33469926 DE1950rad 0.12759165 PmRA2000 -0.0018
PmDE2000 -0.028
Hipparcos
Catalog H HIP 100712 Proxy RAhms 20 25 04.05
DEdms +07 28 23.9 Vmag 7.77 VarFlag R Vmag H
RAdeg 306.267 DEdeg 7.47331 AstroRef Plx 5.87
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 194388 BD BD+07 4462
CD CP Dm number +07 4462 VIred 0.45
SpType F0 R SpType Coord arcsec 2000 202504.05+072823.9
Hipparcos 2
HIP 100712 Sn 5 So 0 Nc 1
RArad 5.3453655246 DErad 0.1304338048 Plx 5.05 PmRA -31.53
PmDE -39.06 E RArad 0.5 E DErad 0.55 E Plx 0.67
E pmRA 0.6 E pmDE 0.71 Hpmag 7.8548 E Hpmag 0.0013
SHp 0.009 VA 0 BV 0.382 E BV 0.009
VI 0.45
 
 
20251+0728 B
 
 
Coord arcsec 2000 202503.97+072906.5 Mag 14.21 PmRA -50.00 PmDE -39.0
Calc delta mag 6.4 Calc coord yes