20318+2219 ROE  12

 
 
20h 31m 49.31s +22 18' 09.1" P.A. 30 sep 10.9 mag 11.87,12.30
 
 
Coord 2000
20318+2219
Discov num
ROE  12
Comp
Coord arcsec 2000
20 31 49.31 +22 18 09.1
Date first
1892
Date last
2015
Obs
10
Pa first
32
Pa last
30
P.A. Now (θ)
30°
Sep first
11.0
Sep last
10.9
Sep. Now (ρ)
10.9"
Mag pri
11.87
Mag sec
12.30
delta mag (ΔM)
0.43
Spectral class
Pri motion ra
-001
Sec motion ra
+000
Pri motion dec
-004
Sec motion dec
-003
Notes
rPM=0.343
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
30.1
Precise sep
10.894
Constellation
Vulpecula
Gaia DR2
17590760704
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20318+2219 ROE 12 2000 4 30 10.9 11.87 12.30 D 203149.31+221809.1
20318+2219 ROE 12 2001 5 30 10.8 11.87 12.30 D 203149.31+221809.1
20318+2219 ROE 12 2010 6 30 10.7 11.87 12.30 203149.31+221809.1
20318+2219 ROE 12 2015 6 30 10.9 11.87 12.30 203149.31+221809.1

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