00559+0040 WAA  17

 
 
00h 55m 54.69s +00 40' 12.8" P.A. 39 sep 8.4 mag 19.50,19.80 Sp M3+M4e
 
 
Coord 2000
00559+0040
Discov num
WAA  17
Comp
Coord arcsec 2000
00 55 54.69 +00 40 12.8
Date first
1990
Date last
2003
Obs
4
Pa first
39
Pa last
39
P.A. Now (θ)
39°
Sep first
8.4
Sep last
8.4
Sep. Now (ρ)
8.4"
Mag pri
19.50
Mag sec
19.80
delta mag (ΔM)
0.3
Spectral class
M3+M4e (red/red)
Pri motion ra
+041
Sec motion ra
+043
Pri motion dec
-019
Sec motion dec
-018
Notes
V (Proper motion indicates physical)
rPM=0.048 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
38.9
Precise sep
8.42
Constellation
Cetus
last precise pa
38.9
last precise sep
8.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00559+0040 WAA 17 2001 1 39 8.4 19.50 19.80 M2+M4e V 005554.69+004012.8
00559+0040 WAA 17 2003 4 39 8.4 19.50 19.80 M3+M4e V 005554.69+004012.8
00559+0040 WAA 17 2010 5 38 8.3 19.50 19.80 M3+M4e V 005554.69+004012.8

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