20420+0021 UC 4262

 
 
20h 42m 00.55s +00 21' 00.8" P.A. 221.00 sep 44.1 mag 16.40,16.50
 
 
Coord 2000
20420+0021
Discov num
UC 4262
Comp
Coord arcsec 2000
20 42 00.55 +00 21 00.8
Date first
1999
Date last
2010
Obs
4
Pa first
221
Pa last
221
P.A. Now (θ)
221°
Sep first
44.0
Sep last
44.1
Sep. Now (ρ)
44.1"
Mag pri
16.40
Mag sec
16.50
delta mag (ΔM)
0.1
Spectral class
Pri motion ra
-041
Sec motion ra
-056
Pri motion dec
-050
Sec motion dec
-071
Notes
V (Proper motion indicates physical)
rPM=0.285 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.7
Precise sep
44.09
Constellation
Hydra
SAO
126117
Gaia DR2
4228200487492221312
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20420+0021 UC 4262 2000 2 221 44.1 16.40 16.50 V 204200.55+002100.8
20420+0021 UC 4262 2010 4 221 44.1 16.40 16.50 V 204200.55+002100.8

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