20550+2805 A 3109 AB,E

 
 
20h 55m 02.41s +28° 05' 25.6" P.A. 51.00 sep 49.2 mag 7.91,13.50 Sp G1V dist. 62.11 pc (202.6 l.y.)
 
 
Coord 2000 20550+2805 Discov num A  3109 Comp AB,E Coord arcsec 2000 20 55 02.41 +28 05 25.6
Date first 1912 Date last 2014 Obs 7
Pa first 65 Pa last 51.1 P.A. Now (θ) 51.1°
Sep first 54.7 Sep last 49.156 Sep. Now (ρ) 49.156"
Mag pri 7.91 Mag sec 13.50 delta mag (ΔM) 5.59 Spectral class G1V (yellow)
Pri motion ra +111 Sec motion ra +109
Pri motion dec -081 Sec motion dec +063
Notes N (See Notes)
rPM=1.048
This double is not physical.
 
 
20550+2805 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 89278 20 55 02 +28 05 26 BU 367 AB 2021 131 224 0.1 8.31 9.00 0.69 Y
Show HD 199221 89278 20 55 02 +28 05 26 BU 367 AB,C 2014 11 358 38.0 7.91 12.30 4.39
Show 89278 20 55 02 +28 05 26 BU 367 AB,D 2014 9 67 19.6 7.91 15.00 7.09
Show 89278 20 55 02 +28 05 26 A 3109 AB,E 2014 7 51 49.2 7.91 13.50 5.59 <===
Quintuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula SAO 89278 HIP 103247 Tycho2 2179-00116-1
Gaia DR2 1845833599295880704 HD 199221 BD BD+27 3915 Distance 62.11
Distance ly 202.6
 
 
WDS 20550+2805 A 3109 AB,E : NOTES
 
 
discov_num notes refcode
BU 367 AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 1.62 +/- 0.40, 2.21, and 1.02 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.
312 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20550+2805 A 3109 AB,E 2000 2 53 49.8 7.91 13.50 G1V N D 205502.41+280525.6
20550+2805 A 3109 AB,E 2002 3 53 49.5 7.91 13.50 G1V N D 205502.41+280525.6
20550+2805 A 3109 AB,E 2012 4 53 49.6 7.91 13.50 G1V N D 205502.41+280525.6
20550+2805 A 3109 AB,E 2014 7 51 49.2 7.91 13.50 G1V N 205502.41+280525.6

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WDS 20550+2805 A 3109 AB,E : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20550+2805 A 3109 AB,E : MEASURES
 
 
No records found.

 
 
WDS 20550+2805 : VIRTUAL EYEPIECE
 
 

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Radius:
Components only
 
 
WDS 20550+2805 : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.