20057+3536 SHJ 316 AB (HD 190864)

 
 
20h 05m 39.80s +35° 36' 28.1" P.A. 323.00 sep 69.4 mag 7.79,8.82 Sp O7IIIe dist. 487.8 pc (1591.2 l.y.)
 
 
Coord 2000 20057+3536 Discov num SHJ 316 Comp AB Coord arcsec 2000 20 05 39.80 +35 36 28.1
Date first 1876 Date last 2018 Obs 31
Pa first 324 Pa last 322.8 P.A. Now (θ) 322.8°
Sep first 69.4 Sep last 69.44 Sep. Now (ρ) 69.44"
Mag pri 7.79 Mag sec 8.82 delta mag (ΔM) 1.03 Spectral class O7IIIe (blue)
Pri motion ra -004 Sec motion ra -004
Pri motion dec -007 Sec motion dec -007
Notes N (See Notes)
Nature of this double is uncertain.
 
 
20057+3536 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 190864 69391 20 05 40 +35 36 28 SHJ 316 AB 2018 31 323 69.4 7.79 8.82 1.03 <===
Show 20 05 36 +35 37 23 ES 24 BC 2018 11 241 11.3 8.82 13.80 4.98
Show 20 05 36 +35 37 23 ES 24 BD 2018 14 86 17.1 8.82 13.11 4.29
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 190864 Constellation Cygnus SAO 69391 HIP 98976
Tycho2 2678-00109-1 Gaia DR2 2059070135632404992 HD 190864 BD BD+35 3949
Distance 487.8 Distance ly 1591.2
 
 
WDS 20057+3536 SHJ 316 AB (HD 190864) : NOTES
 
 
discov_num notes refcode
SHJ 316 STTA199. Based on MacEvoy's (2010) conclusion that SHJ 316 and H 6 59 MEv2010
were the same pair, the 1781 measure of 20097+3701 H 6 59 was merged
this much more well-observed pair.
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 ES Espin, T.E.
96 SHJ South, J. & Herschel, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20057+3536 SHJ 316 AB 2002 23 323 69.5 7.79 8.82 O7IIIe D 200539.80+353628.1
20057+3536 SHJ 316 AB 2009 24 323 69.6 7.79 8.82 O7IIIe D 200539.80+353628.1
20057+3536 SHJ 316 AB 2012 25 323 69.6 7.79 8.82 O7IIIe N D 200539.80+353628.1
20057+3536 SHJ 316 AB 2015 26 323 69.6 7.79 8.82 O7IIIe N 200539.80+353628.1
20057+3536 SHJ 316 AB 2018 31 323 69.4 7.79 8.82 O7IIIe N 200539.80+353628.1

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WDS 20057+3536 SHJ 316 AB (HD 190864) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20057+3536 SHJ 316 AB (HD 190864) : MEASURES
 
 
No records found.

 
 
WDS 20057+3536 (HD 190864) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
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WDS 20057+3536 (HD 190864) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.