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Current system
21491+2640
LDS 4912


Nearby doubles
37' : 21472+2648
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L 36

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POU5524AB

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A 302

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POU5496

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POU5508



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

21491+2640 LDS 4912

 
 
21h 49m 11.17s +26° 40' 23.8" P.A. 134.00 sep 16.5 mag 10.92,14.60
 
 
Coord 2000 21491+2640 Discov num LDS4912 Comp Coord arcsec 2000 21 49 11.17 +26 40 23.8
Date first 1960 Date last 2015 Obs 9
Pa first 133 Pa last 133.6 P.A. Now (θ) 133.6°
Sep first 16.5 Sep last 16.529 Sep. Now (ρ) 16.529"
Mag pri 10.92 Mag sec 14.60 delta mag (ΔM) 3.68 Spectral class
Pri motion ra +118 Sec motion ra
Pri motion dec +031 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus Tycho2 2210-01455-1 Gaia DR2 1799848243445010304
 
 
WDS 21491+2640 LDS 4912 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
LDS Luyten p.m. catalog (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21491+2640 LDS4912 1997 2 134 16.5 10.92 14.60 D 214911.17+264023.8
21491+2640 LDS4912 2001 3 134 16.6 10.92 14.60 D 214911.17+264023.8
21491+2640 LDS4912 2010 4 134 16.4 10.92 14.60 214911.17+264023.8
21491+2640 LDS4912 2015 5 134 16.5 10.92 14.60 214911.17+264023.8

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

 
 
WDS 21491+2640 LDS 4912 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21491+2640 LDS 4912 : MEASURES
 
 
No records found.

 
 
WDS 21491+2640 : VIRTUAL EYEPIECE
 
 

21491+2640 LDS4912A mag 10.92 21491+2640 LDS4912B sep 15.6 P.A. 136.80 mag 14.6 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21491+2640 : ALADIN DSS IMAGE @ 21h 49m 11.17s +26° 40' 23.8"
 
 
 
 
WDS 21491+2640 LDS 4912 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21491+2640 LDS4912 distance=0' 21472+2648 HJ 943 distance=37' 21494+2600 UC 4574 distance=41' 21468+2718 HO 608 distance=50' 21456+2709 MLB1050 distance=54' 21457+2708 BKO 633 distance=54' 21477+2740 CVR 922 distance=64' 21536+2701 ES 523 distance=64' 21453+2722 HO 606 distance=67' 21442+2631 BUP 230AB distance=69' 21442+2631 BUP 230AC distance=69' 21442+2631 BUP 230AD distance=69' 21442+2631 BKO 632AE distance=69' 21503+2754 MLB 576 distance=75' 21547+2643 CVR 924 distance=75' 21505+2756 AZC 116 distance=78' 21442+2631 BUP 230CD distance=78' 21521+2748 HO 171 distance=79' 21473+2524 POU5506 distance=81' 21460+2533 L 36 distance=81' 21435+2721 OSO 155DG distance=83' 21435+2721 A 299DE distance=83' 21435+2721 A 299DF distance=83' 21504+2519 POU5524AB distance=83' 21504+2519 POU5525AC distance=83' 21553+2648 A 302 distance=83' 21435+2721 A 299AB distance=86' 21435+2721 A 299AD distance=86' 21435+2721 A 299BC distance=86' 21446+2539 BU 989AB distance=87' 21446+2539 STF2824AB,C distance=87' 21435+2725 BKO 631 distance=89' 21461+2522 POU5494 distance=89' 21529+2525 POU5544 distance=90' 21494+2509 POU5517 distance=92' 21511+2512 POU5534 distance=93' 21461+2517 POU5496 distance=93' 21480+2508 POU5508 distance=94' 21464+2514 POU5500 distance=95' 21469+2511 POU5503 distance=95' 21555+2724 A 303AB distance=95' 21555+2724 STJ 1AC distance=95' 21502+2505 POU5523 distance=97' 21561+2701 J 854 distance=97' 21564+2627 KPP3374 distance=98' 21498+2503 POU5521 distance=98' 21474+2505 POU5504 distance=99' 21468+2507 POU5502 distance=99' 21439+2751 HO 166 distance=100' 21532+2516 POU5547 distance=100' 21480+2819 MLB 541 distance=100' 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 21491+2640 LDS4912 134 16.5
Show 21472+2648 HJ 943 146 5.7 37
Show 21494+2600 UC 4574 27 47.5 41
Show 21468+2718 HO 608 130 0.6 50
Show 21456+2709 MLB1050 67 6.9 54
Show 21457+2708 BKO 633 18 7.4 54
Show 21477+2740 CVR 922 225 9.9 64
Show 21536+2701 ES 523 95 6.2 64
Show 21453+2722 HO 606 93 18.4 67
Show 21442+2631 BUP 230 AB 291 45.7 69
Show 21442+2631 BUP 230 AC 260 571.7 69
Show 21442+2631 BUP 230 AD 289 439.6 69
Show 21442+2631 BKO 632 AE 115 16.8 69
Show 21503+2754 MLB 576 267 13.1 75
Show 21547+2643 CVR 924 252 21.1 75
Show 21505+2756 AZC 116 353 20.9 78
Show 21442+2631 BUP 230 CD 32 277.1 78
Show 21521+2748 HO 171 342 0.8 79
Show 21473+2524 POU5506 189 12.7 81
Show 21460+2533 L 36 295 4.7 81
Show 21435+2721 OSO 155 DG 304 6.1 83
Show 21435+2721 A 299 DE 95 999.9 83
Show 21435+2721 A 299 DF 26 145.8 83
Show 21504+2519 POU5524 AB 126 14.2 83
Show 21504+2519 POU5525 AC 300 15.6 83
Show 21553+2648 A 302 239 5.8 83
Show 21435+2721 A 299 AB 67 1.1 86
Show 21435+2721 A 299 AD 64 374.5 86
Show 21435+2721 A 299 BC 325 0.1 86
Show 21446+2539 BU 989 AB 134 0.2 87
Show 21446+2539 STF2824 AB,C 288 14.5 87
Show 21435+2725 BKO 631 26 5.9 89
Show 21461+2522 POU5494 31 6.4 89
Show 21529+2525 POU5544 192 23.6 90
Show 21494+2509 POU5517 232 6.0 92
Show 21511+2512 POU5534 334 14.3 93
Show 21461+2517 POU5496 249 34.3 93
Show 21480+2508 POU5508 338 3.9 94
Show 21464+2514 POU5500 172 9.6 95
Show 21469+2511 POU5503 339 4.3 95
Show 21555+2724 A 303 AB 52 2.3 95
Show 21555+2724 STJ 1 AC 337 3.4 95
Show 21502+2505 POU5523 281 2.6 97
Show 21561+2701 J 854 305 2.8 97
Show 21564+2627 KPP3374 328 11.3 98
Show 21498+2503 POU5521 75 15.3 98
Show 21474+2505 POU5504 90 15.7 99
Show 21468+2507 POU5502 350 17.2 99
Show 21439+2751 HO 166 233 0.2 100
Show 21532+2516 POU5547 252 17.8 100
Show 21480+2819 MLB 541 340 9.9 100

 
 
WDS 21491+2640 : COMPONENTS
 
 
  A
B pa=136.8°
sep=15.63"
 
 
21491+2640 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 214911.17+264023.8 Mag 10.92 PmRA 118.00
PmDE 31.0 Tycho2 2210-01455-1
Tycho2
Tycho2 2210-01455-1 Pflag RAmdeg 327.29658057 DEmdeg 26.67328151
PmRA 118.0 PmDE 33.9 E RAmdeg 44 E DEmdeg 54
E pmRA 2.1 E pmDE 2.1 EpRAm 1986.03 EpDEm 1982.90
Num 4 Q RAmdeg 1.7 Q DEmdeg 1.0 Q pmRA 1.7
Q pmDE 1.0 BTmag 11.821 E BTmag 0.093 VTmag 10.923
E VTmag 0.073 Prox 999 TYC T HIP
CCDM RAdeg 327.29627444 DEdeg 26.67320194 EpRA 1990 1.65
EpDE 1990 1.54 E RAdeg 46.3 E DEdeg 57.4 Posflg
Corr -0.2
 
 
21491+2640 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 214911.97+264012.4 Mag 14.6 Calc delta mag 3.68
Calc coord yes