19557+3443 HLM  33AB

 
 
19h 55m 40.02s +34 42' 34.8" P.A. 77 sep 11.8 mag 10.70,11.30 Sp A3
 
 
Coord 2000
19557+3443
Discov num
HLM  33
Comp
AB
Coord arcsec 2000
19 55 40.02 +34 42 34.8
Date first
1894
Date last
2015
Obs
18
Pa first
79
Pa last
77
P.A. Now (θ)
77°
Sep first
12.7
Sep last
11.8
Sep. Now (ρ)
11.8"
Mag pri
10.70
Mag sec
11.30
delta mag (ΔM)
0.6
Spectral class
A3 (white)
Pri motion ra
-004
Sec motion ra
-001
Pri motion dec
-010
Sec motion dec
-005
Notes
N (See Notes)
rPM=0.541
Nature of this double is uncertain.
 
 
19557+3443 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19557+3443 HLM 33 AB 1894 2015 18 77 11.8 10.70 11.30 0.60 <===
Show 19557+3443 HLM 33 AC 1894 2015 18 292 14.7 10.70 11.80 1.10
Show 19557+3443 HLM 33 AD 1924 2015 10 130 13.5 10.70 13.80 3.10
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
76.6
Precise sep
11.847
Constellation
Cygnus
Tycho2
2677-00851-1
Gaia DR2
62605135232
HD
226582
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19557+3443 HLM 33 AB 1998 10 78 11.7 10.70 11.30 N D 195540.02+344234.8
19557+3443 HLM 33 AB 2002 11 77 11.8 10.70 11.30 N D 195540.02+344234.8
19557+3443 HLM 33 AB 2012 12 76 12.0 10.70 11.30 N D 195540.02+344234.8
19557+3443 HLM 33 AB 2015 14 76 11.9 10.70 11.30 A3 N 195540.02+344234.8

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