20413+1551 UC 4257

 
 
20h 41m 18.32s +15 50' 39.9" P.A. 208.00 sep 20.3 mag 15.90,16.30
 
 
Coord 2000
20413+1551
Discov num
UC 4257
Comp
Coord arcsec 2000
20 41 18.32 +15 50 39.9
Date first
1997
Date last
2015
Obs
4
Pa first
208
Pa last
208
P.A. Now (θ)
208°
Sep first
20.6
Sep last
20.3
Sep. Now (ρ)
20.3"
Mag pri
15.90
Mag sec
16.30
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
-070
Sec motion ra
-080
Pri motion dec
-029
Sec motion dec
+006
Notes
V (Proper motion indicates physical)
rPM=0.454
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
208.4
Precise sep
20.34
Constellation
Delphinus
Gaia DR2
1810654243723847808
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20413+1551 UC 4257 2000 2 209 20.4 15.90 16.30 V 204118.32+155039.9
20413+1551 UC 4257 2001 2 209 20.4 15.90 16.30 V 204118.32+155039.9
20413+1551 UC 4257 2010 3 208 21.0 15.90 16.30 V 204118.32+155039.9
20413+1551 UC 4257 2015 4 208 20.3 15.90 16.30 V 204118.32+155039.9

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