20447-2917 UC 4277

 
 
20h 44m 39.52s -29 16' 35.6" P.A. 18 sep 16.4 mag 9.40,15.40 Sp F5V
 
 
Coord 2000
20447-2917
Discov num
UC 4277
Comp
Coord arcsec 2000
20 44 39.52 -29 16 35.6
Date first
1999
Date last
2015
Obs
4
Pa first
18
Pa last
18
P.A. Now (θ)
18°
Sep first
16.2
Sep last
16.4
Sep. Now (ρ)
16.4"
Mag pri
9.40
Mag sec
15.40
delta mag (ΔM)
6
Spectral class
F5V (yellow-white)
Pri motion ra
+082
Sec motion ra
+081
Pri motion dec
-014
Sec motion dec
-007
Notes
V (Proper motion indicates physical)
rPM=0.085 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
17.7
Precise sep
16.446
Constellation
Microscopium
last precise pa
17.7
last precise sep
16.446
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20447-2917 UC 4277 2000 2 18 16.6 9.40 15.40 V 204439.52-291635.6
20447-2917 UC 4277 2010 3 18 16.2 9.40 15.40 F5V V 204439.52-291635.6
20447-2917 UC 4277 2015 4 18 16.4 9.40 15.40 F5V V 204439.52-291635.6

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