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Current system
21442+2631
BUP 230 AB


Nearby doubles
42' : 21456+2709
MLB1050

43' : 21457+2708
BKO 633

46' : 21472+2648
HJ 943

51' : 21435+2721
A 299AB

53' : 21453+2722
HO 606

53' : 21446+2539
BU 989AB

55' : 21435+2725
BKO 631

55' : 21401+2632
BRT3367

59' : 21468+2718
HO 608

64' : 21460+2533
L 36

69' : 21491+2640
LDS4912

74' : 21396+2712
GRV 489

74' : 21409+2532
AZC 113AB

75' : 21461+2522
POU5494

76' : 21420+2741
RAO 465AB

78' : 21494+2600
UC 4574

80' : 21461+2517
POU5496

80' : 21473+2524
POU5506

80' : 21384+2614
TDT3074

80' : 21439+2751
HO 166

80' : 21451+2512
POU5482

81' : 21382+2620
UC 4516

83' : 21452+2509
POU5485

84' : 21464+2514
POU5500

85' : 21477+2740
CVR 922

87' : 21399+2737
HDS3083



Selections
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Binocular doubles
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21442+2631 BUP 230 AB

 
 
21h 44m 09.31s +26° 31' 09.4" P.A. 291.00 sep 45.7 mag 8.47,13.53 Sp G2V dist. 62.38 pc (203.48 l.y.)
 
 
Coord 2000 21442+2631 Discov num BUP 230 Comp AB Coord arcsec 2000 21 44 09.31 +26 31 09.4
Date first 1910 Date last 2015 Obs 6
Pa first 319 Pa last 291.3 P.A. Now (θ) 291.3°
Sep first 30.9 Sep last 45.684 Sep. Now (ρ) 45.684"
Mag pri 8.47 Mag sec 13.53 delta mag (ΔM) 5.06 Spectral class G2V (yellow)
Pri motion ra +205 Sec motion ra -031
Pri motion dec +054 Sec motion dec +013
Notes W
rPM=1.13
This double is not physical.
 
 
21442+2631 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 89938 21 44 09 +26 31 09 BUP 230 AB 2015 6 291 45.7 8.47 13.53 5.06 <===
Show HD 206828 89938 21 44 09 +26 31 09 BUP 230 AC 2008 8 260 571.7 8.47 9.84 1.37
Show 89938 21 44 09 +26 31 09 BUP 230 AD 2014 16 289 439.6 8.47 10.21 1.74
Show 89938 21 44 09 +26 31 09 BKO 632 AE 2015 4 115 16.8 8.47 13.59 5.12
Show 21 43 28 +26 29 35 BUP 230 CD 2015 17 32 277.1 9.84 10.21 0.37
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus SAO 89938 HIP 107313 Tycho2 2197-01717-1
Gaia DR2 1799690738405087360 HD 206828 BD BD+25 4607 Distance 62.38
Distance ly 203.48
 
 
WDS 21442+2631 BUP 230 AB : 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
BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913) 1913QB811.B8.......
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21442+2631 BUP 230 AB 1925 2 315 31.6 8.45 13.10 G2V 214409.18+263109.0
21442+2631 BUP 230 AB 2008 4 292 45.3 8.47 13.22 G2V D 214409.31+263109.4
21442+2631 BUP 230 AB 2015 6 291 45.7 8.47 13.53 G2V W 214409.31+263109.4

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

 
 
WDS 21442+2631 BUP 230 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21442+2631 BUP 230 AB : MEASURES
 
 
No records found.

 
 
WDS 21442+2631 : VIRTUAL EYEPIECE
 
 

21442+2631 BUP 230A mag 8.47 Sp G2V 21442+2631 BUP 230B sep 41.5 P.A. 293.50 mag 13.53 21442+2631 BUP 230C sep 567.6 P.A. 260.40 mag 9.84 Sp K0 21442+2631 BUP 230D sep 398.2 P.A. 290.50 mag 10.21 21442+2631 BKO 632E sep 15.3 P.A. 117.00 mag 13.59 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 21442+2631 : ALADIN DSS IMAGE @ 21h 44m 09.31s +26° 31' 09.4"
 
 
 
 
WDS 21442+2631 BUP 230 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21442+2631 BUP 230AB distance=1' 21442+2631 BUP 230AC distance=1' 21442+2631 BUP 230AD distance=1' 21442+2631 BKO 632AE distance=1' 21442+2631 BUP 230CD distance=10' 21456+2709 MLB1050 distance=42' 21457+2708 BKO 633 distance=43' 21472+2648 HJ 943 distance=46' 21435+2721 A 299AB distance=51' 21435+2721 A 299AD distance=51' 21435+2721 A 299BC distance=51' 21435+2721 OSO 155DG distance=53' 21435+2721 A 299DE distance=53' 21435+2721 A 299DF distance=53' 21453+2722 HO 606 distance=53' 21446+2539 BU 989AB distance=53' 21446+2539 STF2824AB,C distance=53' 21435+2725 BKO 631 distance=55' 21401+2632 BRT3367 distance=55' 21468+2718 HO 608 distance=59' 21460+2533 L 36 distance=64' 21491+2640 LDS4912 distance=69' 21396+2712 GRV 489 distance=74' 21409+2532 AZC 113AB distance=74' 21461+2522 POU5494 distance=75' 21420+2741 RAO 465Aa,Ab distance=76' 21420+2741 RAO 465AB distance=76' 21494+2600 UC 4574 distance=78' 21461+2517 POU5496 distance=80' 21473+2524 POU5506 distance=80' 21384+2614 TDT3074 distance=80' 21439+2751 HO 166 distance=80' 21451+2512 POU5482 distance=80' 21382+2620 UC 4516 distance=81' 21452+2509 POU5485 distance=83' 21464+2514 POU5500 distance=84' 21477+2740 CVR 922 distance=85' 21399+2737 HDS3083 distance=87' 21450+2505 POU5479 distance=88' 21469+2511 POU5503 distance=89' 21386+2720 KPP 497 distance=90' 21456+2503 POU5490 distance=92' 21443+2500 POU5472 distance=92' 21391+2531 POU5451 distance=92' 21468+2507 POU5502 distance=93' 21453+2501 POU5486AB distance=93' 21453+2501 BKO 491AC distance=93' 21453+2501 BKO 491BC distance=93' 21454+2501 POU5487 distance=93' 21423+2800 GRV 494 distance=93' 21387+2530 CHR 104 distance=96' 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 21442+2631 BUP 230 AB 291 45.7 1
Show 21442+2631 BUP 230 AC 260 571.7 1
Show 21442+2631 BUP 230 AD 289 439.6 1
Show 21442+2631 BKO 632 AE 115 16.8 1
Show 21442+2631 BUP 230 CD 32 277.1 10
Show 21456+2709 MLB1050 67 6.9 42
Show 21457+2708 BKO 633 18 7.4 43
Show 21472+2648 HJ 943 146 5.7 46
Show 21435+2721 A 299 AB 67 1.1 51
Show 21435+2721 A 299 AD 64 374.5 51
Show 21435+2721 A 299 BC 325 0.1 51
Show 21435+2721 OSO 155 DG 304 6.1 53
Show 21435+2721 A 299 DE 95 999.9 53
Show 21435+2721 A 299 DF 26 145.8 53
Show 21453+2722 HO 606 93 18.4 53
Show 21446+2539 BU 989 AB 134 0.2 53
Show 21446+2539 STF2824 AB,C 288 14.5 53
Show 21435+2725 BKO 631 26 5.9 55
Show 21401+2632 BRT3367 310 4.5 55
Show 21468+2718 HO 608 130 0.6 59
Show 21460+2533 L 36 295 4.7 64
Show 21491+2640 LDS4912 134 16.5 69
Show 21396+2712 GRV 489 229 51.9 74
Show 21409+2532 AZC 113 AB 199 9.5 74
Show 21461+2522 POU5494 31 6.4 75
Show 21420+2741 RAO 465 Aa,Ab 128 0.3 76
Show 21420+2741 RAO 465 AB 303 2.6 76
Show 21494+2600 UC 4574 27 47.5 78
Show 21461+2517 POU5496 249 34.3 80
Show 21473+2524 POU5506 189 12.7 80
Show 21384+2614 TDT3074 135 2.4 80
Show 21439+2751 HO 166 233 0.2 80
Show 21451+2512 POU5482 94 17.4 80
Show 21382+2620 UC 4516 318 24.9 81
Show 21452+2509 POU5485 175 5.5 83
Show 21464+2514 POU5500 172 9.6 84
Show 21477+2740 CVR 922 225 9.9 85
Show 21399+2737 HDS3083 337 0.2 87
Show 21450+2505 POU5479 34 11.2 88
Show 21469+2511 POU5503 339 4.3 89
Show 21386+2720 KPP 497 205 4.6 90
Show 21456+2503 POU5490 54 14.4 92
Show 21443+2500 POU5472 202 23.3 92
Show 21391+2531 POU5451 63 14.1 92
Show 21468+2507 POU5502 350 17.2 93
Show 21453+2501 POU5486 AB 116 8.2 93
Show 21453+2501 BKO 491 AC 132 5.9 93
Show 21453+2501 BKO 491 BC 263 3.1 93
Show 21454+2501 POU5487 99 15.7 93
Show 21423+2800 GRV 494 323 62.9 93
Show 21387+2530 CHR 104 206 0.1 96

 
 
WDS 21442+2631 : COMPONENTS
 
 
  A B C D
B pa=293.5°
sep=41.54"
 
C pa=260.4°
sep=567.59"
pa=257.9°
sep=533.28"
 
D pa=290.5°
sep=398.22"
pa=290.1°
sep=356.75"
pa=38.5°
sep=299.46"
 
E pa=117.0°
sep=15.35"
pa=114.5°
sep=56.87"
pa=81.3°
sep=579.99"
pa=110.7°
sep=413.48"
 
 
21442+2631 A
 
 
Coord arcsec 2000 214409.31+263109.4 Mag 8.47 Spectral class G2V (yellow) PmRA 205.00
PmDE 54.0 SAO 89938 HIP 107313 Tycho2 2197-01717-1
HD 206828 BD BD+25 4607
Tycho2
Tycho2 2197-01717-1 Pflag RAmdeg 326.03880448 DEmdeg 26.51929638
PmRA 205.5 PmDE 55.4 E RAmdeg 8 E DEmdeg 10
E pmRA 1.1 E pmDE 1.0 EpRAm 1990.71 EpDEm 1989.97
Num 14 Q RAmdeg 0.8 Q DEmdeg 0.6 Q pmRA 0.7
Q pmDE 0.6 BTmag 9.254 E BTmag 0.021 VTmag 8.465
E VTmag 0.015 Prox 999 TYC T HIP 107313
CCDM RAdeg 326.03827806 DEdeg 26.51916944 EpRA 1990 1.75
EpDE 1990 1.77 E RAdeg 8.3 E DEdeg 9.6 Posflg
Corr 0.0
SAO
SAO 89938 DelFlag RA1950 PmRA1950 0.0157
DE1950 PmDE1950 0.08 Vmag 8.2 SpType G5
Double code Source 34 CatNum 12834 DM BD+25 4607
DMcomp BDsup HD 206828 M HD 0
GC RA1950rad 5.68056838 DE1950rad 0.45882237 PmRA2000 0.0158
PmDE2000 0.076
Hipparcos
Catalog H HIP 107313 Proxy RAhms 21 44 09.18
DEdms +26 31 09.0 Vmag 8.4 VarFlag R Vmag H
RAdeg 326.038 DEdeg 26.5192 AstroRef Plx 17.7
CCDM 21440+2631 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 206828 BD BD+25 4607
CD CP Dm number +25 4607 VIred 0.71
SpType G2V R SpType Coord arcsec 2000 214409.18+263109.0
Hipparcos 2
HIP 107313 Sn 5 So 0 Nc 1
RArad 5.6904408612 DErad 0.4628467085 Plx 16.03 PmRA 204.93
PmDE 53.94 E RArad 0.75 E DErad 0.79 E Plx 1.16
E pmRA 0.8 E pmDE 0.82 Hpmag 8.5394 E Hpmag 0.0015
SHp 0.015 VA 0 BV 0.69 E BV 0.017
VI 0.75
 
 
21442+2631 B
 
 
Coord arcsec 2000 214406.47+263126.0 Mag 13.53 PmRA -31.00 PmDE 13.0
Calc delta mag 5.06 Calc coord yes
 
 
21442+2631 C
 
 
Coord arcsec 2000 214327.62+262934.6 Coord calc 214327.62+262934.6 Mag 9.84 Spectral class K0 (yellow-orange)
PmRA -2.00 PmDE -16.0 Tycho2 2197-01794-1 Calc delta mag 1.37
Tycho2
Tycho2 2197-01794-1 Pflag RAmdeg 325.86510819 DEmdeg 26.49296473
PmRA -3.2 PmDE -14.5 E RAmdeg 15 E DEmdeg 21
E pmRA 1.5 E pmDE 1.5 EpRAm 1989.44 EpDEm 1986.72
Num 7 Q RAmdeg 0.9 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.0 BTmag 11.196 E BTmag 0.053 VTmag 9.842
E VTmag 0.027 Prox 999 TYC T HIP
CCDM RAdeg 325.86511417 DEdeg 26.49300167 EpRA 1990 1.88
EpDE 1990 1.92 E RAdeg 16.4 E DEdeg 25.1 Posflg
Corr -0.1
 
 
21442+2631 D
 
 
Coord arcsec 2000 214341.52+263328.9 Mag 10.21 PmRA 9.00 PmDE -5.0
Calc delta mag 1.74 Calc coord yes
 
 
21442+2631 E
 
 
Coord arcsec 2000 214410.33+263102.4 Mag 13.59 Calc delta mag 5.12 Calc coord yes