19542+4234 ROE  40

 
 
19h 54m 12.14s +42 33' 40.0" P.A. 339.00 sep 9.1 mag 9.12,11.10 Sp A2
 
 
Coord 2000
19542+4234
Discov num
ROE  40
Comp
Coord arcsec 2000
19 54 12.14 +42 33 40.0
Date first
1892
Date last
2015
Obs
13
Pa first
342
Pa last
339
P.A. Now (θ)
339°
Sep first
9.7
Sep last
9.1
Sep. Now (ρ)
9.1"
Mag pri
9.12
Mag sec
11.10
delta mag (ΔM)
1.98
Spectral class
A2 (white)
Pri motion ra
+002
Sec motion ra
-001
Pri motion dec
+001
Sec motion dec
-001
Notes
rPM=1.612
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
339.2
Precise sep
9.135
Constellation
Cygnus
SAO
48958
Tycho2
3145-02257-1
Gaia DR2
34618595840
HD
188611
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19542+4234 ROE 40 1998 6 340 9.2 9.12 11.10 A2 D 195412.14+423340.0
19542+4234 ROE 40 2003 8 340 9.2 9.12 11.10 A2 D 195412.14+423340.0
19542+4234 ROE 40 2010 9 339 8.8 9.12 11.10 A2 195412.14+423340.0
19542+4234 ROE 40 2015 9 339 9.1 9.12 11.10 A2 195412.14+423340.0

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