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Current system
20420+2452
POU 4887 AC


Nearby doubles
4' : 20419+2448
POU4881

5' : 20417+2449
POU4877AB

8' : 20423+2457
POU4897

8' : 20425+2451
POU4903

10' : 20415+2459
POU4874

10' : 20420+2501
POU4889

11' : 20422+2442
POU4892

11' : 20418+2502
POU4880AB

12' : 20412+2448
POU4868

13' : 20414+2500
J 512

13' : 20419+2439
POU4882

13' : 20425+2503
TDT2485

14' : 20410+2449
POU4865

15' : 20424+2506
POU4898AB

16' : 20425+2439
POU4902

16' : 20417+2437
POU4879

17' : 20410+2443
POU4858

18' : 20425+2508
POU4901

19' : 20426+2509
POU4904

19' : 20420+2510
POU4888

19' : 20416+2510
POU4875

19' : 20432+2502
POU4914

20' : 20421+2432
POU4891

21' : 20433+2444
POU4917AB

21' : 20434+2500
POU4921

21' : 20408+2505
POU4854



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

20420+2452 POU 4887 AC

 
 
20h 42m 00.70s +24° 52' 05.2" P.A. 113.00 sep 28.7 mag 10.88,13.74
 
 
Coord 2000 20420+2452 Discov num POU4887 Comp AC Coord arcsec 2000 20 42 00.70 +24 52 05.2
Date first 1899 Date last 2017 Obs 10
Pa first 113 Pa last 112.8 P.A. Now (θ) 112.8°
Sep first 28.3 Sep last 28.68 Sep. Now (ρ) 28.68"
Mag pri 10.88 Mag sec 13.74 delta mag (ΔM) 2.86 Spectral class
Pri motion ra +001 Sec motion ra +017
Pri motion dec +007 Sec motion dec -002
Notes
rPM=1.072
This double is not physical.
 
 
20420+2452 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 42 01 +24 52 05 POU 4886 AB 2017 10 122 15.5 10.88 14.00 3.12
Show 20 42 01 +24 52 05 POU 4887 AC 2017 10 113 28.7 10.88 13.74 2.86 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Tycho2 2174-00449-1 Gaia DR2 1843448513758733568 HD 340979
 
 
WDS 20420+2452 POU 4887 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Pou1933 Pa - Pourteau, M. A. .
Pou1933 Cat. des etoiles doubles de la zone +24deg de la carte photog. du ciel, 1933
Pou1933 (Obs. de Paris, H. Tessier) [QB821.P7]
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20420+2452 POU4887 AC 2000 2 113 28.6 10.88 13.74 D 204200.70+245205.2
20420+2452 POU4887 AC 2008 3 113 29.0 10.88 13.74 D 204200.70+245205.2
20420+2452 POU4887 AC 2017 6 113 28.7 10.88 13.74 204200.70+245205.2

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

 
 
WDS 20420+2452 POU 4887 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20420+2452 POU 4887 AC : MEASURES
 
 
No records found.

 
 
WDS 20420+2452 : VIRTUAL EYEPIECE
 
 

20420+2452 POU4886A mag 10.88 20420+2452 POU4886B sep 14.5 P.A. 124.50 mag 14 20420+2452 POU4887C sep 26.4 P.A. 114.90 mag 13.74 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20420+2452 : ALADIN DSS IMAGE @ 20h 42m 00.70s +24° 52' 05.2"
 
 
 
 
WDS 20420+2452 POU 4887 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20420+2452 POU4887AC distance=0' 20419+2448 POU4881 distance=4' 20417+2449 POU4877AB distance=5' 20417+2449 POU4878AC distance=5' 20423+2457 POU4897 distance=8' 20425+2451 POU4903 distance=8' 20415+2459 POU4874 distance=10' 20420+2501 POU4889 distance=10' 20422+2442 POU4892 distance=11' 20418+2502 POU4880AB distance=11' 20418+2502 POU4880AC distance=11' 20412+2448 POU4868 distance=12' 20414+2500 J 512 distance=13' 20419+2439 POU4882 distance=13' 20425+2503 TDT2485 distance=13' 20410+2449 POU4865 distance=14' 20424+2506 POU4898AB distance=15' 20424+2506 POU4899AC distance=15' 20425+2439 POU4902 distance=16' 20417+2437 POU4879 distance=16' 20410+2443 POU4858 distance=17' 20425+2508 POU4901 distance=18' 20426+2509 POU4904 distance=19' 20420+2510 POU4888 distance=19' 20416+2510 POU4875 distance=19' 20432+2502 POU4914 distance=19' 20421+2432 POU4891 distance=20' 20433+2444 POU4917AB distance=21' 20433+2444 POU4918AC distance=21' 20434+2500 POU4921 distance=21' 20408+2505 POU4854 distance=21' 20405+2448 POU4850 distance=21' 20412+2433 BKO 624 distance=23' 20403+2451 POU4845 distance=24' 20413+2430 POU4870AB distance=24' 20409+2510 POU4857 distance=24' 20413+2513 POU4869 distance=24' 20413+2430 BKO 625BC distance=24' 20420+2516 POU4890 distance=24' 20437+2456 POU4927 distance=25' 20403+2501 POU4843 distance=26' 20436+2505 POU4924 distance=26' 20401+2450 POU4834 distance=26' 20438+2441 POU4926AB distance=27' 20438+2441 BKO 647AC distance=27' 20434+2434 POU4916 distance=27' 20401+2458 POU4840 distance=27' 20437+2436 POU4925 distance=29' 20400+2503 POU4833 distance=29' 20416+2424 POU4872 distance=29' 20411+2426 POU4863 distance=29' 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 20420+2452 POU4886 AB 122 15.5
Show 20420+2452 POU4887 AC 113 28.7
Show 20419+2448 POU4881 211 10.4 4
Show 20417+2449 POU4877 AB 36 8.5 5
Show 20417+2449 POU4878 AC 321 15.9 5
Show 20423+2457 POU4897 185 9.5 8
Show 20425+2451 POU4903 126 8.5 8
Show 20415+2459 POU4874 198 8.8 10
Show 20420+2501 POU4889 13 14.6 10
Show 20422+2442 POU4892 169 14.9 11
Show 20418+2502 POU4880 AB 152 13.3 11
Show 20418+2502 POU4880 AC 128 11.9 11
Show 20412+2448 POU4868 140 15.5 12
Show 20414+2500 J 512 89 2.4 13
Show 20419+2439 POU4882 145 9.5 13
Show 20425+2503 TDT2485 215 2.8 13
Show 20410+2449 POU4865 145 5.4 14
Show 20424+2506 POU4898 AB 347 6.2 15
Show 20424+2506 POU4899 AC 318 19.1 15
Show 20425+2439 POU4902 141 8.7 16
Show 20417+2437 POU4879 94 8.5 16
Show 20410+2443 POU4858 142 18.0 17
Show 20425+2508 POU4901 159 8.8 18
Show 20426+2509 POU4904 217 8.5 19
Show 20420+2510 POU4888 353 17.2 19
Show 20416+2510 POU4875 126 5.0 19
Show 20432+2502 POU4914 88 10.8 19
Show 20421+2432 POU4891 8 13.3 20
Show 20433+2444 POU4917 AB 253 11.6 21
Show 20433+2444 POU4918 AC 208 16.6 21
Show 20434+2500 POU4921 72 4.1 21
Show 20408+2505 POU4854 303 18.7 21
Show 20405+2448 POU4850 280 5.3 21
Show 20412+2433 BKO 624 197 3.3 23
Show 20403+2451 POU4845 150 15.4 24
Show 20413+2430 POU4870 AB 146 17.6 24
Show 20409+2510 POU4857 83 15.4 24
Show 20413+2513 POU4869 245 13.3 24
Show 20413+2430 BKO 625 BC 169 10.7 24
Show 20420+2516 POU4890 222 10.6 24
Show 20437+2456 POU4927 176 15.0 25
Show 20403+2501 POU4843 146 8.6 26
Show 20436+2505 POU4924 61 6.0 26
Show 20401+2450 POU4834 35 5.7 26
Show 20438+2441 POU4926 AB 38 17.7 27
Show 20438+2441 BKO 647 AC 248 8.4 27
Show 20434+2434 POU4916 276 14.8 27
Show 20401+2458 POU4840 16 14.8 27
Show 20437+2436 POU4925 10 13.9 29
Show 20400+2503 POU4833 272 20.4 29
Show 20416+2424 POU4872 268 6.4 29

 
 
WDS 20420+2452 : COMPONENTS
 
 
  A B
B pa=124.5°
sep=14.50"
 
C pa=114.9°
sep=26.44"
pa=103.6°
sep=12.38"
 
 
20420+2452 A
 
 
Coord arcsec 2000 204200.70+245205.2 Mag 10.88 PmRA 1.00 PmDE 7.0
Tycho2 2174-00449-1 HD 340979
Tycho2
Tycho2 2174-00449-1 Pflag RAmdeg 310.50295285 DEmdeg 24.86811930
PmRA 3.0 PmDE 4.8 E RAmdeg 46 E DEmdeg 50
E pmRA 1.8 E pmDE 1.8 EpRAm 1984.61 EpDEm 1983.41
Num 3 Q RAmdeg 1.7 Q DEmdeg 1.5 Q pmRA 1.7
Q pmDE 1.6 BTmag 12.283 E BTmag 0.158 VTmag 10.879
E VTmag 0.063 Prox 814 TYC T HIP
CCDM RAdeg 310.50294500 DEdeg 24.86810806 EpRA 1990 1.60
EpDE 1990 1.59 E RAdeg 48.3 E DEdeg 51.7 Posflg
Corr 0.0
CCDM
Ccdm 20420+2452 RComp Comp A Note1
Note2 Discov num DRAs 0.78 DDEs 5.7
R dRAs 65 Year Theta Rho
Obs 3 Vmag 11.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20377N2431A
HIC
 
 
20420+2452 B
 
 
Coord arcsec 2000 204201.58+245157.0 Mag 14 PmRA -19.00 PmDE -5.0
Calc delta mag 3.12 Calc coord yes
CCDM
Ccdm 20420+2452 RComp Comp B Note1
Note2 Discov num POU4886 DRAs 1.74 DDEs -2.7
R dRAs 65 Year 1899 Theta 119 Rho 15.5
Obs 1 Vmag 14.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20377N2431B
HIC
 
 
20420+2452 C
 
 
Coord arcsec 2000 204202.46+245154.1 Mag 13.74 PmRA 17.00 PmDE -2.0
Calc delta mag 2.86 Calc coord yes
CCDM
Ccdm 20420+2452 RComp Comp C Note1
Note2 Discov num POU4887 DRAs 2.63 DDEs -6.1
R dRAs 65 Year 1899 Theta 113 Rho 28.3
Obs 1 Vmag 14.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20377N2431B
HIC