21176-3619 UC 4431

21h 17m 36.72s -36 18' 44.5" P.A. 145 sep 15.1 mag 14.70,15.60

Coord 2000
21176-3619
Discov num
UC 4431
Comp
Coord arcsec 2000
21 17 36.72 -36 18 44.5
Date first
1998
Date last
2010
Obs
4
Pa first
145
Pa last
145
P.A. Now (θ)
145°
Sep first
15.1
Sep last
15.1
Sep. Now (ρ)
15.1"
Mag pri
14.70
Mag sec
15.60
delta mag (ΔM)
0.9
Spectral class
Pri motion ra
-003
Sec motion ra
-001
Pri motion dec
-081
Sec motion dec
-083
Notes
V R (Proper motion indicates physical, Red magnitudes)


rPM=0.034 (< 0.3, Physical double)

This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Precise pa
145.3
Precise sep
15.13
Constellation
Microscopium
last precise pa
145.3
last precise sep
15.13




WDS HISTORIC DATA

coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21176-3619 UC 4431 1999 2 146 15.1 14.70 15.60 V 211736.72-361844.5
21176-3619 UC 4431 2000 2 146 15.1 14.70 15.60 V 211736.72-361844.5
21176-3619 UC 4431 2010 4 145 15.1 14.70 15.60 V R 211736.72-361844.5

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