19557+3443 HLM  33AD

 
 
19h 55m 40.02s +34 42' 34.8" P.A. 130 sep 13.5 mag 10.70,13.80 Sp A3
 
 
Coord 2000
19557+3443
Discov num
HLM  33
Comp
AD
Coord arcsec 2000
19 55 40.02 +34 42 34.8
Date first
1924
Date last
2015
Obs
10
Pa first
128
Pa last
130
P.A. Now (θ)
130°
Sep first
14.2
Sep last
13.5
Sep. Now (ρ)
13.5"
Mag pri
10.70
Mag sec
13.80
delta mag (ΔM)
3.1
Spectral class
A3 (white)
Pri motion ra
-004
Sec motion ra
+001
Pri motion dec
-010
Sec motion dec
-015
Notes
N (See Notes)
rPM=0.47
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
129.8
Precise sep
13.528
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 AD 1998 2 130 13.6 10.70   N D 195540.02+344234.8
19557+3443 HLM 33 AD 2002 3 129 13.5 10.70 13.80 N D 195540.02+344234.8
19557+3443 HLM 33 AD 2012 4 129 13.8 10.70 13.80 N D 195540.02+344234.8
19557+3443 HLM 33 AD 2015 6 129 13.5 10.70 13.80 A3 N 195540.02+344234.8

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