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Doubles in session


Current system
21510+2911
A 889 AB
HD 207794


Nearby doubles
18' : 21517+2856
HLD 49

21' : 21517+2852
SHN 256

37' : 21538+2856
MLB 495

41' : 21530+2939
BRT 59

44' : 21540+2852
GRV 519

51' : 21474+2855
AG 420

51' : 21524+2823
NSN 67

53' : 21473+2932
STJ 58

55' : 21469+2907
CVR 919

57' : 21470+2930
GRV 503

60' : 21474+2834
A 300AB

61' : 21553+2850
COU 836

63' : 21539+2821
WSI 8

64' : 21555+2942
HO 609AB

65' : 21480+2819
MLB 541

67' : 21461+2855
BRT 58

71' : 21561+2846
COU 837AB

74' : 21565+2900
HJ 1706

75' : 21505+2756
AZC 116

77' : 21556+2823
MLB 577AB

77' : 21452+2914
UC 4550

78' : 21458+2945
DAM 236

78' : 21503+2754
MLB 576

80' : 21516+3030
MLB 669

81' : 21458+2954
TDT3146

83' : 21455+2948
DAM 237



Selections
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Binary Systems
Triple Systems
Quadruple Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21510+2911 A 889 AB (HD 207794)

 
 
21h 51m 02.11s +29° 10' 32.8" P.A. 15.00 sep 0.2 mag 9.23,10.48 Sp K0 dist. 56.4 pc (183.98 l.y.)
 
 
Coord 2000 21510+2911 Discov num A   889 Comp AB Coord arcsec 2000 21 51 02.11 +29 10 32.8
Date first 1904 Date last 2021 Obs 26
Pa first 58 Pa last 15.1 P.A. Now (θ) 15.1°
Sep first 0.2 Sep last 0.213 Sep. Now (ρ) 0.213"
Mag pri 9.23 Mag sec 10.48 delta mag (ΔM) 1.25 Spectral class K0 (yellow-orange)
Pri motion ra +219 Sec motion ra
Pri motion dec +183 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
21510+2911 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 90051 21 51 02 +29 10 33 A 889 Aa,Ab 2021 1 323 0.0 9.80 10.20 0.40 Y
Show HD 207794 90051 21 51 02 +29 10 33 A 889 AB 2021 26 15 0.2 9.23 10.48 1.25 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 207794 Constellation Pegasus SAO 90051 HIP 107849
Tycho2 2214-01676-1 HD 207794 BD BD+28 4210 Distance 56.4
Distance ly 183.98
 
 
WDS 21510+2911 A 889 AB (HD 207794) : NOTES
 
 
discov_num notes refcode
A 889 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 2.04 +/- 0.47, 1.76, and 0.85 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21510+2911 A 889 AB 2021 25 15 0.2 9.23 10.48 K0 NO 215102.11+291032.8

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

 
 
WDS 21510+2911 A 889 AB (HD 207794) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21510+2911 A 889 AB (HD 207794) : MEASURES
 
 
No records found.

 
 
WDS 21510+2911 (HD 207794) : VIRTUAL EYEPIECE
 
 

21510+2911 A 889A mag 9.23 Sp K0 21510+2911 A 889Ab mag 10.2 21510+2911 A 889B sep 0.2 P.A. 13.30 mag 10.48 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 21510+2911 (HD 207794) : ALADIN DSS IMAGE @ 21h 51m 02.11s +29° 10' 32.8"
 
 
 
 
WDS 21510+2911 A 889 AB (HD 207794) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21510+2911 A 889AB distance=0' 21517+2856 HLD 49 distance=18' 21517+2852 SHN 256 distance=21' 21538+2856 MLB 495 distance=37' 21530+2939 BRT 59 distance=41' 21540+2852 GRV 519 distance=44' 21474+2855 AG 420 distance=51' 21524+2823 NSN 67 distance=51' 21473+2932 STJ 58 distance=53' 21469+2907 CVR 919 distance=55' 21470+2930 GRV 503 distance=57' 21474+2834 A 300AB distance=60' 21474+2834 A 300AC distance=60' 21474+2834 A 300AD distance=60' 21553+2850 COU 836 distance=61' 21539+2821 WSI 8 distance=63' 21555+2942 HO 609AB distance=64' 21555+2942 HO 609AC distance=64' 21555+2942 HO 609AD distance=64' 21555+2942 HO 609AE distance=64' 21480+2819 MLB 541 distance=65' 21461+2855 BRT 58 distance=67' 21561+2846 COU 837AB distance=71' 21561+2846 GII 104AC distance=71' 21565+2900 HJ 1706 distance=74' 21505+2756 AZC 116 distance=75' 21556+2823 MLB 577BC distance=76' 21556+2823 MLB 577AB distance=77' 21452+2914 UC 4550 distance=77' 21458+2945 DAM 236 distance=78' 21503+2754 MLB 576 distance=78' 21516+3030 MLB 669 distance=80' 21458+2954 TDT3146 distance=81' 21455+2948 DAM 237 distance=83' 21457+2957 TDT3145 distance=84' 21521+2748 HO 171 distance=84' 21462+2817 MLB 540AB distance=85' 21462+2817 MLB 540AC distance=85' 21462+2817 ABH 152AD distance=85' 21462+2817 ABH 152AE distance=85' 21572+2938 TDT3258 distance=85' 21575+2923 UC 4612 distance=86' 21575+2856 LEP 104 distance=87' 21564+3001 MLB 721AB distance=87' 21564+3001 MLB 721AC distance=87' 21454+2819 J 3145 distance=91' 21441+2845 ES 521DE distance=92' 21441+2845 FYM 25DG distance=92' 21441+2845 STF2822AB distance=95' 21441+2845 STF2822AC distance=95' 21441+2845 STF2822AD distance=95' 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 21510+2911 A 889 AB 15 0.2
Show 21510+2911 A 889 Aa,Ab 323 0.0
Show 21517+2856 HLD 49 341 2.1 18
Show 21517+2852 SHN 256 -1 0.6 21
Show 21538+2856 MLB 495 134 4.8 37
Show 21530+2939 BRT 59 355 4.4 41
Show 21540+2852 GRV 519 318 22.1 44
Show 21474+2855 AG 420 145 7.5 51
Show 21524+2823 NSN 67 285 5.1 51
Show 21473+2932 STJ 58 193 1.8 53
Show 21469+2907 CVR 919 201 23.5 55
Show 21470+2930 GRV 503 331 20.4 57
Show 21474+2834 A 300 AB 252 2.3 60
Show 21474+2834 A 300 AC 29 7.5 60
Show 21474+2834 A 300 AD 170 8.4 60
Show 21553+2850 COU 836 161 1.3 61
Show 21539+2821 WSI 8 142 0.1 63
Show 21555+2942 HO 609 AB 356 3.3 64
Show 21555+2942 HO 609 AC 132 22.1 64
Show 21555+2942 HO 609 AD 147 30.4 64
Show 21555+2942 HO 609 AE 347 31.7 64
Show 21480+2819 MLB 541 340 9.9 65
Show 21461+2855 BRT 58 165 4.4 67
Show 21561+2846 COU 837 AB 150 1.2 71
Show 21561+2846 GII 104 AC 105 1.9 71
Show 21565+2900 HJ 1706 260 10.0 74
Show 21505+2756 AZC 116 353 20.9 75
Show 21556+2823 MLB 577 BC 18 6.4 76
Show 21556+2823 MLB 577 AB 300 48.8 77
Show 21452+2914 UC 4550 15 42.5 77
Show 21458+2945 DAM 236 143 5.9 78
Show 21503+2754 MLB 576 267 13.1 78
Show 21516+3030 MLB 669 309 3.2 80
Show 21458+2954 TDT3146 359 2.5 81
Show 21455+2948 DAM 237 233 6.3 83
Show 21457+2957 TDT3145 250 2.2 84
Show 21521+2748 HO 171 342 0.8 84
Show 21462+2817 MLB 540 AB 256 4.1 85
Show 21462+2817 MLB 540 AC 322 8.7 85
Show 21462+2817 ABH 152 AD 68 41.8 85
Show 21462+2817 ABH 152 AE 96 80.1 85
Show 21572+2938 TDT3258 262 1.8 85
Show 21575+2923 UC 4612 23 64.1 86
Show 21575+2856 LEP 104 189 85.0 87
Show 21564+3001 MLB 721 AB 15 1.6 87
Show 21564+3001 MLB 721 AC 200 6.9 87
Show 21454+2819 J 3145 112 5.4 91
Show 21441+2845 ES 521 DE 286 17.5 92
Show 21441+2845 FYM 25 DG 164 89.6 92
Show 21441+2845 STF2822 AB 325 1.6 95
Show 21441+2845 STF2822 AC 292 76.6 95

 
 
WDS 21510+2911 : COMPONENTS
 
 
  A Ab
Ab pa=326.7°
sep=0.03"
 
B pa=13.3°
sep=0.21"
pa=19.9°
sep=0.19"
 
 
21510+2911 A
 
 
Name HD 207794 Coord arcsec 2000 215102.11+291032.8 Mag 9.23 Spectral class K0 (yellow-orange)
PmRA 219.00 PmDE 183.0 SAO 90051 HIP 107849
Tycho2 2214-01676-1 HD 207794 BD BD+28 4210
Tycho2
Tycho2 2214-01676-1 Pflag RAmdeg 327.75881325 DEmdeg 29.17581334
PmRA 209.0 PmDE 176.6 E RAmdeg 11 E DEmdeg 12
E pmRA 1.4 E pmDE 1.3 EpRAm 1990.52 EpDEm 1989.65
Num 8 Q RAmdeg 0.8 Q DEmdeg 1.4 Q pmRA 0.8
Q pmDE 1.3 BTmag 9.946 E BTmag 0.028 VTmag 8.896
E VTmag 0.017 Prox 999 TYC T HIP 107849
CCDM AB RAdeg 327.75826528 DEdeg 29.17540306 EpRA 1990 1.76
EpDE 1990 1.60 E RAdeg 11.3 E DEdeg 13.1 Posflg P
Corr -0.2
SAO
SAO 90051 DelFlag RA1950 PmRA1950 0.017
DE1950 PmDE1950 0.173 Vmag 8.9 SpType K0
Double code Source 34 CatNum 12951 DM BD+28 4210
DMcomp BDsup HD 207794 M HD 0
GC RA1950rad 5.71068114 DE1950rad 0.50507379 PmRA2000 0.0171
PmDE2000 0.169
Hipparcos
Catalog H HIP 107849 Proxy H RAhms 21 51 01.97
DEdms +29 10 31.4 Vmag 8.82 VarFlag R Vmag G
RAdeg 327.758 DEdeg 29.1754 AstroRef * Plx 17.12
CCDM 21510+2911 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual B M HIP AB
Theta 87 Rho 0.158 HD 207794 BD BD+28 4210
CD CP Dm number +28 4210 VIred 0.89
SpType K0 R SpType Coord arcsec 2000 215101.97+291031.4
Hipparcos 2
HIP 107849 Sn 55 So 3 Nc 2
RArad 5.7204601031 DErad 0.5092064721 Plx 17.73 PmRA 214.14
PmDE 178.74 E RArad 0.84 E DErad 0.82 E Plx 1.12
E pmRA 1.05 E pmDE 1.03 Hpmag 8.9283 E Hpmag 0.0017
SHp 0.02 VA 0 BV 0.885 E BV 0.015
VI 0.93
CCDM
Ccdm 21510+2911 RComp Comp A Note1
Note2 Discov num DRAs 2.18 DDEs -26.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.7 Sp K0 PmNote *
PmRA 224 PmDE 184 Dm number +28 4210 Cat1 BD
Name2 +28 2568 Cat2 AGK2/3 HD 207794 M HD
ADS BDS A15378 M ADS BDS N IDS IDS 21466N2842A
HIC 107849
 
 
21510+2911 Ab
 
 
Coord arcsec 2000 215102.11+291032.8 Mag 10.2 Calc delta mag 0.4 Calc coord yes
 
 
21510+2911 B
 
 
Coord arcsec 2000 215102.11+291033.0 Mag 10.48 Calc delta mag 0.68 Calc coord yes
CCDM
Ccdm 21510+2911 RComp Comp B Note1 *
Note2 Discov num A 889 DRAs DDEs
R dRAs Year 1904 Theta Rho
Obs 10 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15378 M ADS BDS N IDS IDS 21466N2842B
HIC 107849