20299+4022 HJ 1525 AC

 
 
20h 29m 54.13s +40° 22' 01.2" P.A. 39.00 sep 17.1 mag 9.13,13.50 Sp A2
 
 
Coord 2000 20299+4022 Discov num HJ 1525 Comp AC Coord arcsec 2000 20 29 54.13 +40 22 01.2
Date first 1925 Date last 2015 Obs 11
Pa first 38 Pa last 38.5 P.A. Now (θ) 38.5°
Sep first 15.6 Sep last 17.123 Sep. Now (ρ) 17.123"
Mag pri 9.13 Mag sec 13.50 delta mag (ΔM) 4.37 Spectral class A2 (white)
Pri motion ra +007 Sec motion ra +013
Pri motion dec +002 Sec motion dec +011
Notes N (See Notes)
rPM=0.635
Nature of this double is uncertain.
 
 
20299+4022 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 195448 49698 20 29 54 +40 22 01 HJ 1525 AB 2019 31 234 9.2 9.13 9.58 0.45
Show 49698 20 29 54 +40 22 01 HJ 1525 AC 2015 11 39 17.1 9.13 13.50 4.37 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 49698 Tycho2 3156-01942-1 Gaia DR2 2067354161145466496
HD 195448 DM BD+39 4213
 
 
WDS 20299+4022 HJ 1525 AC : NOTES
 
 
discov_num notes refcode
HJ 1525 There is no star in the vicinity at all corresponding to O. Stone 50. Doo1915a
AB: SEI1139. Nsn2017d
 
 
REFERENCES
 
 
refcode metd author reference
Doo1915a Ma - Doolittle, E. 1915MNRAS..75..666D
Doo1915a MNRAS 75, 666, 1915
Nsn2017d not - Nanson, J. ...................
Nsn2017d private communication, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20299+4022 HJ 1525 AC 1998 2 39 17.0 9.13 13.50 A2 D 202954.13+402201.2
20299+4022 HJ 1525 AC 2009 3 39 16.8 9.13 13.50 A2 D 202954.13+402201.2
20299+4022 HJ 1525 AC 2013 5 41 18.0 9.13 13.50 A2 N 202954.13+402201.2
20299+4022 HJ 1525 AC 2015 7 39 17.1 9.13 13.50 A2 N 202954.13+402201.2

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WDS 20299+4022 HJ 1525 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20299+4022 HJ 1525 AC : MEASURES
 
 
No records found.

 
 
WDS 20299+4022 : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 20299+4022 : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.