15212+2745 LDS4544

 
 
15h 21m 13.53s +27 44' 53.1" P.A. 184 sep 59.6 mag 17.66,17.91 Sp M2.9+M2.7
 
 
Coord 2000
15212+2745
Discov num
LDS4544
Comp
Coord arcsec 2000
15 21 13.53 +27 44 53.1
Date first
1960
Date last
2010
Obs
5
Pa first
185
Pa last
184
P.A. Now (θ)
184°
Sep first
59.0
Sep last
59.6
Sep. Now (ρ)
59.6"
Mag pri
17.66
Mag sec
17.91
delta mag (ΔM)
0.25
Spectral class
M2.9+M2.7 (red/red)
Pri motion ra
-140
Sec motion ra
-138
Pri motion dec
-121
Sec motion dec
-121
Notes
N V R (See Notes, Proper motion indicates physical, Red magnitudes)
rPM=0.011 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
184.4
Precise sep
59.61
Constellation
Corona Borealis
last precise pa
184.4
last precise sep
59.61
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15212+2745 LDS4544 2000 2 184 59.6 18.50 19.00 D 152113.53+274453.1
15212+2745 LDS4544 2004 3 184 59.6 18.50 19.00 M3+M3 V 152113.53+274453.1
15212+2745 LDS4544 2010 5 184 59.6 17.66 17.91 M2.9+M2.7 NV R 152113.53+274453.1

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