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Current system
20420+2317
POU 4885 AC


Nearby doubles
3' : 20421+2319
BKO 843AB

3' : 20418+2317
BKO 841

5' : 20417+2318
BKO 839

5' : 20418+2321
BKO 840

7' : 20415+2318
BKO 837

8' : 20415+2317
BKO 838

9' : 20416+2323
POU4871

10' : 20425+2310
LDS6416

12' : 20427+2322
POU4909

12' : 20427+2324
POU4908

12' : 20424+2327
POU4895

13' : 20412+2322
POU4866

13' : 20423+2328
POU4894

13' : 20411+2321
POU4864AB

14' : 20411+2322
BKO 835

15' : 20416+2331
POU4873

18' : 20424+2334
POU4896

19' : 20418+2259
HO 595

20' : 20434+2318
POU4919

21' : 20411+2333
POU4862

22' : 20435+2323
POU4920

22' : 20430+2334
POU4911

23' : 20409+2334
POU4855

25' : 20418+2341
POU4876

26' : 20433+2300
HJ 1565

27' : 20439+2318
POU4929



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20420+2317 POU 4885 AC

 
 
20h 41m 59.65s +23° 17' 08.3" P.A. 227.00 sep 20.1 mag 12.58,13.50
 
 
Coord 2000 20420+2317 Discov num POU4885 Comp AC Coord arcsec 2000 20 41 59.65 +23 17 08.3
Date first 1899 Date last 2015 Obs 7
Pa first 228 Pa last 227.4 P.A. Now (θ) 227.4°
Sep first 20.8 Sep last 20.099 Sep. Now (ρ) 20.099"
Mag pri 12.58 Mag sec 13.50 delta mag (ΔM) 0.92 Spectral class
Pri motion ra +002 Sec motion ra -069
Pri motion dec -002 Sec motion dec -004
Notes
rPM=1.028
This double is not physical.
 
 
20420+2317 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 41 60 +23 17 08 POU 4884 AB 2014 5 287 6.5 12.58 13.40 0.82
Show 20 41 60 +23 17 08 POU 4885 AC 2015 7 227 20.1 12.58 13.50 0.92 <===
Show 20 41 60 +23 17 08 BKO 842 AD 2015 6 12 14.8 12.58 14.80 2.22
Show 20 41 60 +23 17 08 BKO 842 AE 2015 6 96 21.8 12.58 14.50 1.92
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Tycho2 2170-00163-1 Gaia DR2 1819080797762499328
 
 
WDS 20420+2317 POU 4885 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bko2002 C - Ladanyi, T. & Berko, E. ...................
Bko2002 Webb Soc., Double Star Circ. 10, 2002
Bko2003 C u Ladanyi, T., Berko, E. & Vaskuti, G ...................
Bko2003 Webb Soc., Double Star Circ. 11, 2003
Bko2004 C u Berko, E., Ladanyi, T. & Vaskuti, G ...................
Bko2004 Webb Soc., Double Star Circ. 12, 2004
Bko2005 C u Berko, E., Ladanyi, T. & Vaskuti, G ...................
Bko2005 Webb Soc., Double Star Circ. 13, 2005
Bko2008 C u Berko, E. & Vaskuti, G. ...................
Bko2008 Webb Soc., Double Star Circ. 16, 2008
Bko2008b C u Berko, E. 2008JDSO....4..144B
Bko2008b JDSO 4, 144, 2008
Bko2009 C u Berko, E. 2009JDSO....5...49B
Bko2009 JDSO 5, 49, 2009
Bko2009b C u Berko, E. 2009JDSO....5..168B
Bko2009b JDSO 5, 168, 2009
Bko2009c C u Berko, E. ...................
Bko2009c Webb Soc., Double Star Circ. 17, 2009
Bko2009d C u Berko, E. 2009JDSO....5..189B
Bko2009d JDSO 5, 189, 2009
Bko2010a C u Berko, E. 2010JDSO....6...21B
Bko2010a JDSO 6, 21, 2010
Bko2010b C u Berko, E. ...................
Bko2010b Webb Soc., Double Star Circ. 18, 2010
Bko2011a C u Berko, E. 2011JDSO....7....2B
Bko2011a JDSO 7, 2, 2011
Bko2011b C u Berko, E. ...................
Bko2011b Webb Soc., Double Star Circ. 19, 29, 2011 (BKO 898 - BKO 980)
Bko2011c C u Berko, E. ...................
Bko2011c Webb Soc., Double Star Circ. 19, 42, 2011 (BKO 981 - BKO1042)
Bko2012 C u Berko, E. ...................
Bko2012 Webb Soc., Double Star Circ. 20, 2012
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+2317 POU4885 AC 1899 1 228 20.8 12.58 13.50 204159.62+231708.1
20420+2317 POU4885 AC 2009 2 227 20.2 12.58 13.50 204159.62+231708.1
20420+2317 POU4885 AC 2015 7 227 20.1 12.58 13.50 204159.65+231708.3

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

 
 
WDS 20420+2317 POU 4885 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20420+2317 POU 4885 AC : MEASURES
 
 
No records found.

 
 
WDS 20420+2317 : VIRTUAL EYEPIECE
 
 

20420+2317 POU4884A mag 12.58 20420+2317 POU4884B sep 6.0 P.A. 288.10 mag 13.4 20420+2317 POU4885C sep 19.2 P.A. 225.00 mag 13.5 20420+2317 BKO 842D sep 14.8 P.A. 11.00 mag 14.8 20420+2317 BKO 842E sep 20.0 P.A. 96.00 mag 14.5 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 20420+2317 : ALADIN DSS IMAGE @ 20h 41m 59.65s +23° 17' 08.3"
 
 
 
 
WDS 20420+2317 POU 4885 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20420+2317 POU4885AC distance=0' 20421+2319 BKO 843AB distance=3' 20421+2319 BKO 843AC distance=3' 20418+2317 BKO 841 distance=3' 20417+2318 BKO 839 distance=5' 20418+2321 BKO 840 distance=5' 20415+2318 BKO 837 distance=7' 20415+2317 BKO 838 distance=8' 20416+2323 POU4871 distance=9' 20425+2310 LDS6416 distance=10' 20427+2322 POU4909 distance=12' 20427+2324 POU4908 distance=12' 20424+2327 POU4895 distance=12' 20412+2322 POU4866 distance=13' 20423+2328 POU4894 distance=13' 20411+2321 POU4864AB distance=13' 20411+2321 BKO 836BC distance=13' 20411+2322 BKO 835 distance=14' 20416+2331 POU4873 distance=15' 20424+2334 POU4896 distance=18' 20418+2259 HO 595 distance=19' 20434+2318 POU4919 distance=20' 20411+2333 POU4862 distance=21' 20435+2323 POU4920 distance=22' 20430+2334 POU4911 distance=22' 20409+2334 POU4855 distance=23' 20418+2341 POU4876 distance=25' 20433+2300 HJ 1565 distance=26' 20439+2318 POU4929 distance=27' 20418+2344 TDT2476 distance=27' 20411+2341 POU4859 distance=28' 20399+2326 POU4829 distance=30' 20408+2342 BKO 623 distance=30' 20440+2306 BRT2482 distance=31' 20412+2345 POU4867 distance=31' 20434+2343 POU4915 distance=32' 20442+2329 POU4933 distance=33' 20425+2350 POU4900 distance=34' 20407+2346 BKO 622 distance=35' 20395+2319 POU4807 distance=35' 20399+2336 POU4830 distance=35' 20432+2349 POU4913 distance=36' 20395+2326 POU4808AB distance=36' 20395+2326 BKO 614AC distance=36' 20425+2352 BKO 844 distance=36' 20446+2319 POU4939AB distance=36' 20446+2319 POU4940AC distance=36' 20423+2352 POU4893 distance=36' 20405+2346 POU4849BC distance=36' 20405+2346 BKO 621BD distance=36' 20405+2346 POU4848AB distance=37' 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+2317 POU4884 AB 287 6.5
Show 20420+2317 POU4885 AC 227 20.1
Show 20420+2317 BKO 842 AD 12 14.8
Show 20420+2317 BKO 842 AE 96 21.8
Show 20421+2319 BKO 843 AB 299 4.9 3
Show 20421+2319 BKO 843 AC 346 9.5 3
Show 20418+2317 BKO 841 264 9.7 3
Show 20417+2318 BKO 839 346 8.3 5
Show 20418+2321 BKO 840 75 7.7 5
Show 20415+2318 BKO 837 241 10.8 7
Show 20415+2317 BKO 838 33 8.6 8
Show 20416+2323 POU4871 68 15.4 9
Show 20425+2310 LDS6416 258 10.9 10
Show 20427+2322 POU4909 344 13.8 12
Show 20427+2324 POU4908 343 11.0 12
Show 20424+2327 POU4895 58 10.7 12
Show 20412+2322 POU4866 38 10.0 13
Show 20423+2328 POU4894 183 12.6 13
Show 20411+2321 POU4864 AB 213 13.5 13
Show 20411+2321 BKO 836 BC 299 10.4 13
Show 20411+2322 BKO 835 212 7.5 14
Show 20416+2331 POU4873 219 15.0 15
Show 20424+2334 POU4896 142 14.1 18
Show 20418+2259 HO 595 112 17.8 19
Show 20434+2318 POU4919 105 6.6 20
Show 20411+2333 POU4862 335 13.7 21
Show 20435+2323 POU4920 323 11.2 22
Show 20430+2334 POU4911 232 6.7 22
Show 20409+2334 POU4855 355 16.8 23
Show 20418+2341 POU4876 105 10.3 25
Show 20433+2300 HJ 1565 67 16.9 26
Show 20439+2318 POU4929 262 17.7 27
Show 20418+2344 TDT2476 228 0.5 27
Show 20411+2341 POU4859 24 19.0 28
Show 20399+2326 POU4829 217 14.2 30
Show 20408+2342 BKO 623 12 9.0 30
Show 20440+2306 BRT2482 248 4.1 31
Show 20412+2345 POU4867 220 17.7 31
Show 20434+2343 POU4915 35 6.9 32
Show 20442+2329 POU4933 109 3.9 33
Show 20425+2350 POU4900 3 10.7 34
Show 20407+2346 BKO 622 161 8.9 35
Show 20395+2319 POU4807 191 12.5 35
Show 20399+2336 POU4830 33 15.2 35
Show 20432+2349 POU4913 28 17.8 36
Show 20395+2326 POU4808 AB 200 16.0 36
Show 20395+2326 BKO 614 AC 194 8.5 36
Show 20425+2352 BKO 844 311 9.2 36
Show 20446+2319 POU4939 AB 85 16.1 36
Show 20446+2319 POU4940 AC 92 20.2 36
Show 20423+2352 POU4893 249 14.8 36

 
 
WDS 20420+2317 : COMPONENTS
 
 
  A B C D
B pa=288.1°
sep=6.04"
 
C pa=225.0°
sep=19.23"
pa=206.9°
sep=17.36"
 
D pa=11.0°
sep=14.76"
pa=34.2°
sep=15.25"
pa=30.3°
sep=32.54"
 
E pa=96.0°
sep=20.02"
pa=98.8°
sep=25.95"
pa=71.0°
sep=35.42"
pa=134.1°
sep=23.80"
 
 
20420+2317 A
 
 
Coord arcsec 2000 204159.65+231708.3 Mag 12.58 PmRA 2.00 PmDE -2.0
Tycho2 2170-00163-1
Tycho2
Tycho2 2170-00163-1 Pflag RAmdeg 310.49845389 DEmdeg 23.28558472
PmRA -6.1 PmDE -5.7 E RAmdeg 58 E DEmdeg 71
E pmRA 2.4 E pmDE 2.4 EpRAm 1984.39 EpDEm 1981.62
Num 3 Q RAmdeg 3.4 Q DEmdeg 1.0 Q pmRA 3.4
Q pmDE 1.0 BTmag 13.412 E BTmag 0.318 VTmag 12.576
E VTmag 0.214 Prox 999 TYC HIP
CCDM RAdeg 310.49856333 DEdeg 23.28562278 EpRA 1990 1.63
EpDE 1990 1.55 E RAdeg 110.3 E DEdeg 114.9 Posflg
Corr 0.0
CCDM
Ccdm 20420+2317 RComp Comp A Note1
Note2 Discov num DRAs -0.43 DDEs 8.7
R dRAs 65 Year Theta Rho
Obs 3 Vmag 12.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20376N2256A
HIC
 
 
20420+2317 B
 
 
Coord arcsec 2000 204159.23+231710.2 Mag 13.4 PmRA 4.00 PmDE -17.0
Calc delta mag 0.82 Calc coord yes
CCDM
Ccdm 20420+2317 RComp Comp B Note1
Note2 Discov num POU4884 DRAs DDEs
R dRAs Year 1899 Theta 295 Rho 7.1
Obs 1 Vmag 13.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20376N2256B
HIC
 
 
20420+2317 C
 
 
Coord arcsec 2000 204158.66+231654.7 Mag 13.5 PmRA -69.00 PmDE -4.0
Calc delta mag 0.92 Calc coord yes
CCDM
Ccdm 20420+2317 RComp Comp C Note1
Note2 Discov num POU4885 DRAs -1.38 DDEs -5.5
R dRAs 65 Year 1899 Theta 228 Rho 20.8
Obs 1 Vmag 14.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20376N2256B
HIC
 
 
20420+2317 D
 
 
Coord arcsec 2000 204159.86+231722.8 Mag 14.8 PmRA 13.00 PmDE 15.0
Calc delta mag 2.22 Calc coord yes
 
 
20420+2317 E
 
 
Coord arcsec 2000 204201.10+231706.2 Mag 14.5 PmRA -13.00 PmDE -18.0
Calc delta mag 1.92 Calc coord yes