21052+1600 SLW1230

 
 
21h 05m 10.39s +15 59' 47.4" P.A. 208 sep 13.5 mag 15.05,19.05 Sp M1.7+M4.6
 
 
Coord 2000
21052+1600
Discov num
SLW1230
Comp
Coord arcsec 2000
21 05 10.39 +15 59 47.4
Date first
1998
Date last
2010
Obs
3
Pa first
207
Pa last
208
P.A. Now (θ)
208°
Sep first
13.6
Sep last
13.5
Sep. Now (ρ)
13.5"
Mag pri
15.05
Mag sec
19.05
delta mag (ΔM)
4
Spectral class
M1.7+M4.6 (red/red)
Pri motion ra
-045
Sec motion ra
-045
Pri motion dec
-036
Sec motion dec
-033
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.052 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
207.7
Precise sep
13.5
Constellation
Delphinus
last precise pa
207.7
last precise sep
13.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21052+1600 SLW1230 2004 1 207 13.6 15.05 19.05 M1.7 M4.6 V R 210510.39+155947.4
21052+1600 SLW1230 2010 3 208 13.3 15.05 19.05 M1.7+M4.6 V R 210510.39+155947.4

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