20512-0401 UC 4308

 
 
20h 51m 12.01s -04 00' 40.3" P.A. 49.00 sep 15.9 mag 12.90,16.00
 
 
Coord 2000
20512-0401
Discov num
UC 4308
Comp
Coord arcsec 2000
20 51 12.01 -04 00 40.3
Date first
1998
Date last
2015
Obs
7
Pa first
49
Pa last
49
P.A. Now (θ)
49°
Sep first
15.9
Sep last
15.9
Sep. Now (ρ)
15.9"
Mag pri
12.90
Mag sec
16.00
delta mag (ΔM)
3.1
Spectral class
Pri motion ra
+028
Sec motion ra
+034
Pri motion dec
-065
Sec motion dec
-053
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.19 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
48.8
Precise sep
15.885
Constellation
Hydra
Gaia DR2
6914861131396068864
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20512-0401 UC 4308 2000 2 48 15.7 12.90 16.00 V 205112.01-040040.3
20512-0401 UC 4308 2010 3 49 15.8 12.90 16.00 V R 205112.01-040040.3
20512-0401 UC 4308 2015 4 49 15.8 12.90 16.00 V R 205112.01-040040.3

If you need more information about this double, apply for a data request form to the WDS.