20025+3341 HO  117AB

 
 
20h 02m 29.65s +33 40' 56.5" P.A. 314.00 sep 5.2 mag 10.41,11.70 Sp F8:
 
 
Coord 2000
20025+3341
Discov num
HO  117
Comp
AB
Coord arcsec 2000
20 02 29.65 +33 40 56.5
Date first
1883
Date last
2015
Obs
18
Pa first
314
Pa last
314
P.A. Now (θ)
314°
Sep first
5.1
Sep last
5.2
Sep. Now (ρ)
5.2"
Mag pri
10.41
Mag sec
11.70
delta mag (ΔM)
1.29
Spectral class
F8: (yellow-white)
Pri motion ra
+003
Sec motion ra
-003
Pri motion dec
+009
Sec motion dec
+009
Notes
N (See Notes)
Visually invisible, K-band or other infrared star rPM=0.632
Nature of this double is uncertain.
 
 
20025+3341 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 69306 20025+3341 HO 117 AB 1883 2015 18 314 5.2 10.41 11.70 1.29 <===
Show 69306 20025+3341 BKO 520 AC 1998 2015 7 24 6.5 10.41 14.00 3.59
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
313.5
Precise sep
5.174
Constellation
Cygnus
SAO
69306
Tycho2
2674-05689-1
Gaia DR2
92683217408
HD
227251
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20025+3341 HO 117 AB 2008 13 313 4.6 10.41 11.70 D 200229.65+334056.5
20025+3341 HO 117 AB 2010 15 311 4.4 10.41 11.70 F8: N 200229.65+334056.5
20025+3341 HO 117 AB 2015 15 314 5.2 10.41 11.70 F8: N 200229.65+334056.5

If you need more information about this double, apply for a data request form to the WDS.
 
 
WDS 20025+3341 HO 117AB : NOTES
 
 
discov_num notes refcode
HO 117 AB: SEI 809. Nsn2017d
BKO 520 AC: Anon. 33. Bko2009d
 
 
REFERENCES
 
 
refcode metd author reference
Bko2009d C u Berko, E. 2009JDSO....5..189B
Bko2009d JDSO 5, 189, 2009
Nsn2017d not - Nanson, J. ...................
Nsn2017d private communication, 2017
 
 
DISCOVERER
 
 
discov author
BKO Berko, E. & Vaskuti, G.
BKO Berko, E., Ladanyi, T. & Vaskuti, G
BKO Ladanyi, T. & Berko, E.
BKO Berko, E.
BKO Ladanyi, T., Berko, E. & Vaskuti, G
HO Hough, G.W.

 
 
WDS 20025+3341 HO 117AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20025+3341 HO 117AB : MEASURES
 
 
No records found.

 
 
WDS 20025+3341 HO 117AB : Virtual Eyepiece
 
 

20025+3341 A mag 10.41 Sp F8: 20025+3341 B sep 4.7 P.A. 318.80 mag 11.7 20025+3341 C sep 6.4 P.A. 20.40 mag 14 virtual eyepiece
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Radius:
 
 
WDS 20025+3341 HO 117AB : Aladin DSS image @ 20h 02m 29.65s +33 40' 56.5"