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Doubles in session


Current system
21457+2708
BKO 633


Nearby doubles
1' : 21456+2709
MLB1050

16' : 21453+2722
HO 606

18' : 21468+2718
HO 608

32' : 21435+2721
A 299AB

35' : 21435+2725
BKO 631

43' : 21477+2740
CVR 922

43' : 21442+2631
BUP 230AB

50' : 21439+2751
HO 166

54' : 21491+2640
LDS4912

59' : 21472+2648
HJ 943

61' : 21420+2741
RAO 465AB

70' : 21423+2800
GRV 494

71' : 21462+2817
MLB 540AB

73' : 21454+2819
J 3145

77' : 21503+2754
MLB 576

78' : 21480+2819
MLB 541

79' : 21444+2824
KPP3373

80' : 21505+2756
AZC 116

82' : 21396+2712
GRV 489

83' : 21399+2737
HDS3083

84' : 21401+2632
BRT3367

85' : 21494+2600
UC 4574

90' : 21474+2834
A 300AB

91' : 21446+2539
BU 989AB

95' : 21521+2748
HO 171

96' : 21460+2533
L 36



Selections
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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.

21457+2708 BKO 633

 
 
21h 45m 43.38s +27° 07' 43.9" P.A. 18.00 sep 7.4 mag 12.80,15.10
 
 
Coord 2000 21457+2708 Discov num BKO 633 Comp Coord arcsec 2000 21 45 43.38 +27 07 43.9
Date first 1997 Date last 2015 Obs 8
Pa first 19 Pa last 17.6 P.A. Now (θ) 17.6°
Sep first 7.3 Sep last 7.381 Sep. Now (ρ) 7.381"
Mag pri 12.80 Mag sec 15.10 delta mag (ΔM) 2.3 Spectral class
Pri motion ra -008 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus Gaia DR2 1800120475651877888
 
 
WDS 21457+2708 BKO 633 : 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
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21457+2708 BKO 633 2008 2 17 7.3 12.80 15.10 D 214543.38+270743.9
21457+2708 BKO 633 2010 4 18 7.7 12.80 15.10 214543.38+270743.9
21457+2708 BKO 633 2015 5 18 7.4 12.80 15.10 214543.38+270743.9

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

 
 
WDS 21457+2708 BKO 633 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21457+2708 BKO 633 : MEASURES
 
 
No records found.

 
 
WDS 21457+2708 : VIRTUAL EYEPIECE
 
 

21457+2708 BKO 633A mag 12.8 21457+2708 BKO 633B sep 7.3 P.A. 15.80 mag 15.1 virtual eyepiece
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Radius:
Components only
 
 
WDS 21457+2708 : ALADIN DSS IMAGE @ 21h 45m 43.38s +27° 07' 43.9"
 
 
 
 
WDS 21457+2708 BKO 633 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21457+2708 BKO 633 distance=0' 21456+2709 MLB1050 distance=1' 21453+2722 HO 606 distance=16' 21468+2718 HO 608 distance=18' 21435+2721 OSO 155DG distance=29' 21435+2721 A 299DE distance=29' 21435+2721 A 299DF distance=29' 21435+2721 A 299AB distance=32' 21435+2721 A 299AD distance=32' 21435+2721 A 299BC distance=32' 21435+2725 BKO 631 distance=35' 21477+2740 CVR 922 distance=43' 21442+2631 BUP 230AB distance=43' 21442+2631 BUP 230AC distance=43' 21442+2631 BUP 230AD distance=43' 21442+2631 BKO 632AE distance=43' 21442+2631 BUP 230CD distance=49' 21439+2751 HO 166 distance=50' 21491+2640 LDS4912 distance=54' 21472+2648 HJ 943 distance=59' 21420+2741 RAO 465Aa,Ab distance=61' 21420+2741 RAO 465AB distance=61' 21423+2800 GRV 494 distance=70' 21462+2817 MLB 540AB distance=71' 21462+2817 MLB 540AC distance=71' 21462+2817 ABH 152AD distance=71' 21462+2817 ABH 152AE distance=71' 21454+2819 J 3145 distance=73' 21503+2754 MLB 576 distance=77' 21480+2819 MLB 541 distance=78' 21444+2824 KPP3373 distance=79' 21505+2756 AZC 116 distance=80' 21396+2712 GRV 489 distance=82' 21399+2737 HDS3083 distance=83' 21401+2632 BRT3367 distance=84' 21494+2600 UC 4574 distance=85' 21474+2834 A 300AB distance=90' 21474+2834 A 300AC distance=90' 21474+2834 A 300AD distance=90' 21446+2539 BU 989AB distance=91' 21446+2539 STF2824AB,C distance=91' 21521+2748 HO 171 distance=95' 21460+2533 L 36 distance=96' 21386+2720 KPP 497 distance=97' 21441+2845 STF2822AB distance=100' 21441+2845 STF2822AC distance=100' 21441+2845 STF2822AD distance=100' 21441+2845 FYM 25AF distance=100' 21441+2845 FYM 25AG distance=100' 21441+2845 STF2822BD distance=100' 21441+2845 ES 521DE distance=101' 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 21457+2708 BKO 633 18 7.4
Show 21456+2709 MLB1050 67 6.9 1
Show 21453+2722 HO 606 93 18.4 16
Show 21468+2718 HO 608 130 0.6 18
Show 21435+2721 OSO 155 DG 304 6.1 29
Show 21435+2721 A 299 DE 95 999.9 29
Show 21435+2721 A 299 DF 26 145.8 29
Show 21435+2721 A 299 AB 67 1.1 32
Show 21435+2721 A 299 AD 64 374.5 32
Show 21435+2721 A 299 BC 325 0.1 32
Show 21435+2725 BKO 631 26 5.9 35
Show 21477+2740 CVR 922 225 9.9 43
Show 21442+2631 BUP 230 AB 291 45.7 43
Show 21442+2631 BUP 230 AC 260 571.7 43
Show 21442+2631 BUP 230 AD 289 439.6 43
Show 21442+2631 BKO 632 AE 115 16.8 43
Show 21442+2631 BUP 230 CD 32 277.1 49
Show 21439+2751 HO 166 233 0.2 50
Show 21491+2640 LDS4912 134 16.5 54
Show 21472+2648 HJ 943 146 5.7 59
Show 21420+2741 RAO 465 Aa,Ab 128 0.3 61
Show 21420+2741 RAO 465 AB 303 2.6 61
Show 21423+2800 GRV 494 323 62.9 70
Show 21462+2817 MLB 540 AB 256 4.1 71
Show 21462+2817 MLB 540 AC 322 8.7 71
Show 21462+2817 ABH 152 AD 68 41.8 71
Show 21462+2817 ABH 152 AE 96 80.1 71
Show 21454+2819 J 3145 112 5.4 73
Show 21503+2754 MLB 576 267 13.1 77
Show 21480+2819 MLB 541 340 9.9 78
Show 21444+2824 KPP3373 242 2.1 79
Show 21505+2756 AZC 116 353 20.9 80
Show 21396+2712 GRV 489 229 51.9 82
Show 21399+2737 HDS3083 337 0.2 83
Show 21401+2632 BRT3367 310 4.5 84
Show 21494+2600 UC 4574 27 47.5 85
Show 21474+2834 A 300 AB 252 2.3 90
Show 21474+2834 A 300 AC 29 7.5 90
Show 21474+2834 A 300 AD 170 8.4 90
Show 21446+2539 BU 989 AB 134 0.2 91
Show 21446+2539 STF2824 AB,C 288 14.5 91
Show 21521+2748 HO 171 342 0.8 95
Show 21460+2533 L 36 295 4.7 96
Show 21386+2720 KPP 497 205 4.6 97
Show 21441+2845 STF2822 AB 325 1.6 100
Show 21441+2845 STF2822 AC 292 76.6 100
Show 21441+2845 STF2822 AD 43 197.0 100
Show 21441+2845 FYM 25 AF 72 111.5 100
Show 21441+2845 FYM 25 AG 73 168.1 100
Show 21441+2845 STF2822 BD 45 196.7 100
Show 21441+2845 ES 521 DE 286 17.5 101

 
 
WDS 21457+2708 : COMPONENTS
 
 
  A
B pa=15.8°
sep=7.31"
 
 
21457+2708 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 214543.38+270743.9 Mag 12.8 PmRA -8.00
PmDE -12.0
 
 
21457+2708 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 214543.53+270750.9 Mag 15.1 Calc delta mag 2.3
Calc coord yes