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Current system
20277+2454
POU 4504


Nearby doubles
5' : 20280+2456
POU4512

9' : 20276+2502
BKO 575

10' : 20280+2503
POU4510

14' : 20280+2508
POU4513

14' : 20282+2507
BKO 577

17' : 20274+2510
POU4503

17' : 20281+2510
POU4514

19' : 20291+2452
POU4522

20' : 20291+2453
POU4523

23' : 20262+2501
POU4493

23' : 20268+2436
POU4499

24' : 20261+2455
POU4492

25' : 20289+2436
BKO 578AB

28' : 20264+2514
POU4496

28' : 20293+2437
BKO 583

29' : 20291+2433
POU4521AB

29' : 20297+2442
POU4529

30' : 20294+2514
POU4527

30' : 20294+2435
BKO 584

30' : 20299+2453
POU4532

31' : 20290+2430
BKO 579

31' : 20298+2504
POU4531

31' : 20262+2516
POU4494

31' : 20298+2507
BKO 586

31' : 20290+2429
BKO 580

31' : 20299+2445
BKO 587



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

20277+2454 POU 4504

 
 
20h 27m 45.15s +24° 54' 09.8" P.A. 67.00 sep 15.7 mag 10.71,14.40 Sp A0
 
 
Coord 2000 20277+2454 Discov num POU4504 Comp Coord arcsec 2000 20 27 45.15 +24 54 09.8
Date first 1899 Date last 2015 Obs 8
Pa first 70 Pa last 67.1 P.A. Now (θ) 67.1°
Sep first 16.0 Sep last 15.688 Sep. Now (ρ) 15.688"
Mag pri 10.71 Mag sec 14.40 delta mag (ΔM) 3.69 Spectral class A0 (white)
Pri motion ra +012 Sec motion ra +006
Pri motion dec +007 Sec motion dec +014
Notes
rPM=0.605
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Tycho2 2160-01487-1 Gaia DR2 1831662818565408512 HD 340414
 
 
WDS 20277+2454 POU 4504 : 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
20277+2454 POU4504 1997 2 68 15.8 10.71 14.40 D 202745.15+245409.8
20277+2454 POU4504 2001 3 68 15.7 10.71 14.40 D 202745.15+245409.8
20277+2454 POU4504 2010 4 69 15.9 10.71 14.40 A0 202745.15+245409.8
20277+2454 POU4504 2015 8 67 15.7 10.71 14.40 A0 202745.15+245409.8

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

 
 
WDS 20277+2454 POU 4504 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20277+2454 POU 4504 : MEASURES
 
 
No records found.

 
 
WDS 20277+2454 : VIRTUAL EYEPIECE
 
 

20277+2454 POU4504A mag 10.71 Sp A0 20277+2454 POU4504B sep 14.5 P.A. 65.00 mag 14.4 virtual eyepiece
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Radius:
Components only
 
 
WDS 20277+2454 : ALADIN DSS IMAGE @ 20h 27m 45.15s +24° 54' 09.8"
 
 
 
 
WDS 20277+2454 POU 4504 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20277+2454 POU4504 distance=0' 20280+2456 POU4512 distance=5' 20276+2502 BKO 575 distance=9' 20280+2503 POU4510 distance=10' 20280+2508 POU4513 distance=14' 20282+2507 BKO 577 distance=14' 20274+2510 POU4503 distance=17' 20281+2510 POU4514 distance=17' 20291+2452 POU4522 distance=19' 20291+2453 POU4523 distance=20' 20262+2501 POU4493 distance=23' 20268+2436 POU4499 distance=23' 20261+2455 POU4492 distance=24' 20289+2436 BKO 578BC distance=25' 20289+2436 BKO 578AB distance=25' 20264+2514 POU4496 distance=28' 20293+2437 BKO 583 distance=28' 20291+2433 POU4521AB distance=29' 20291+2433 BKO 581AC distance=29' 20297+2442 POU4529 distance=29' 20294+2514 POU4527 distance=30' 20294+2435 BKO 584 distance=30' 20299+2453 POU4532 distance=30' 20290+2430 BKO 579 distance=31' 20298+2504 POU4531 distance=31' 20262+2516 POU4494 distance=31' 20298+2507 BKO 586 distance=31' 20290+2429 BKO 580 distance=31' 20299+2445 BKO 587 distance=31' 20256+2504 A 392 distance=31' 20291+2429 BKO 582 distance=31' 20299+2444 BKO 588 distance=32' 20292+2521 TDT2318AB distance=34' 20292+2521 POU4525AC distance=34' 20256+2438 POU4486 distance=34' 20301+2443 BKO 590 distance=34' 20255+2439 POU4485 distance=34' 20279+2421 POU4509 distance=34' 20253+2506 POU4483 distance=35' 20302+2506 POU4536 distance=36' 20300+2438 POU4534 distance=36' 20252+2456 POU4478 distance=36' 20252+2454 POU4476AB distance=36' 20252+2454 POU4477AC distance=36' 20301+2509 BKO 589 distance=36' 20280+2418 BKO 576 distance=37' 20303+2441 POU4537 distance=37' 20280+2416 POU4511 distance=39' 20257+2521 STF2682 distance=39' 20253+2516 POU4482 distance=40' 20269+2416 POU4501 distance=41' 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 20277+2454 POU4504 67 15.7
Show 20280+2456 POU4512 268 13.4 5
Show 20276+2502 BKO 575 349 3.7 9
Show 20280+2503 POU4510 356 13.9 10
Show 20280+2508 POU4513 39 7.2 14
Show 20282+2507 BKO 577 209 8.6 14
Show 20274+2510 POU4503 283 18.1 17
Show 20281+2510 POU4514 93 17.0 17
Show 20291+2452 POU4522 165 12.8 19
Show 20291+2453 POU4523 140 16.8 20
Show 20262+2501 POU4493 358 14.1 23
Show 20268+2436 POU4499 44 7.3 23
Show 20261+2455 POU4492 327 4.2 24
Show 20289+2436 BKO 578 BC 260 1.3 25
Show 20289+2436 BKO 578 AB 355 4.2 25
Show 20264+2514 POU4496 24 10.9 28
Show 20293+2437 BKO 583 137 6.9 28
Show 20291+2433 POU4521 AB 327 6.5 29
Show 20291+2433 BKO 581 AC 180 3.9 29
Show 20297+2442 POU4529 261 10.6 29
Show 20294+2514 POU4527 208 13.8 30
Show 20294+2435 BKO 584 266 5.4 30
Show 20299+2453 POU4532 195 17.5 30
Show 20290+2430 BKO 579 163 8.2 31
Show 20298+2504 POU4531 212 8.2 31
Show 20262+2516 POU4494 202 15.7 31
Show 20298+2507 BKO 586 287 4.6 31
Show 20290+2429 BKO 580 56 9.7 31
Show 20299+2445 BKO 587 220 4.3 31
Show 20256+2504 A 392 292 0.9 31
Show 20291+2429 BKO 582 142 7.8 31
Show 20299+2444 BKO 588 213 1.1 32
Show 20292+2521 TDT2318 AB 20 2.6 34
Show 20292+2521 POU4525 AC 2 12.5 34
Show 20256+2438 POU4486 242 12.8 34
Show 20301+2443 BKO 590 225 9.0 34
Show 20255+2439 POU4485 200 17.5 34
Show 20279+2421 POU4509 280 9.0 34
Show 20253+2506 POU4483 229 5.5 35
Show 20302+2506 POU4536 110 6.4 36
Show 20300+2438 POU4534 346 14.6 36
Show 20252+2456 POU4478 339 15.7 36
Show 20252+2454 POU4476 AB 113 10.9 36
Show 20252+2454 POU4477 AC 327 16.8 36
Show 20301+2509 BKO 589 84 5.2 36
Show 20280+2418 BKO 576 31 7.2 37
Show 20303+2441 POU4537 319 16.7 37
Show 20280+2416 POU4511 196 17.8 39
Show 20257+2521 STF2682 298 22.0 39
Show 20253+2516 POU4482 57 3.2 40
Show 20269+2416 POU4501 135 16.4 41

 
 
WDS 20277+2454 : COMPONENTS
 
 
  A
B pa=65.0°
sep=14.46"
 
 
20277+2454 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202745.15+245409.8 Mag 10.71 Spectral class A0 (white)
PmRA 12.00 PmDE 7.0 Tycho2 2160-01487-1 HD 340414
Tycho2
Tycho2 2160-01487-1 Pflag RAmdeg 306.93813941 DEmdeg 24.90274716
PmRA 12.0 PmDE 10.0 E RAmdeg 24 E DEmdeg 26
E pmRA 1.4 E pmDE 1.4 EpRAm 1986.07 EpDEm 1985.26
Num 5 Q RAmdeg 0.9 Q DEmdeg 1.1 Q pmRA 0.9
Q pmDE 1.1 BTmag 11.012 E BTmag 0.047 VTmag 10.714
E VTmag 0.053 Prox 999 TYC T HIP
CCDM RAdeg 306.93810556 DEdeg 24.90272139 EpRA 1990 1.66
EpDE 1990 1.65 E RAdeg 28.8 E DEdeg 31.7 Posflg
Corr 0.0
 
 
20277+2454 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202746.11+245415.9 Mag 14.4 PmRA 6.00
PmDE 14.0 Calc delta mag 3.69 Calc coord yes