21007+1547 SLW1228

 
 
21h 00m 39.81s +15 47' 11.8" P.A. 262 sep 14.8 mag 18.78,19.88 Sp M3.5+M4.4
 
 
Coord 2000
21007+1547
Discov num
SLW1228
Comp
Coord arcsec 2000
21 00 39.81 +15 47 11.8
Date first
2000
Date last
2010
Obs
3
Pa first
262
Pa last
262
P.A. Now (θ)
262°
Sep first
15.0
Sep last
14.8
Sep. Now (ρ)
14.8"
Mag pri
18.78
Mag sec
19.88
delta mag (ΔM)
1.1
Spectral class
M3.5+M4.4 (red/red)
Pri motion ra
-021
Sec motion ra
-020
Pri motion dec
-034
Sec motion dec
-031
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.079 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
262
Precise sep
14.82
Constellation
Delphinus
last precise pa
262
last precise sep
14.82
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21007+1547 SLW1228 2004 1 262 14.9 18.78 19.88 M3.5 M4.4 V R 210039.81+154711.8
21007+1547 SLW1228 2010 3 262 14.8 18.78 19.88 M3.5+M4.4 V R 210039.81+154711.8

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