16157+6155 LDS2728

 
 
16h 15m 37.90s +61 55' 35.0" P.A. 336 sep 46.4 mag 13.90,18.60 Sp M3/4+WD:
 
 
Coord 2000
16157+6155
Discov num
LDS2728
Comp
Coord arcsec 2000
16 15 37.90 +61 55 35.0
Date first
1954
Date last
2010
Obs
7
Pa first
336
Pa last
336
P.A. Now (θ)
336°
Sep first
47.1
Sep last
46.4
Sep. Now (ρ)
46.4"
Mag pri
13.90
Mag sec
18.60
delta mag (ΔM)
4.7
Spectral class
M3/4+WD: (red/Wolf-Rayet)
Pri motion ra
-155
Sec motion ra
-155
Pri motion dec
+120
Sec motion dec
+120
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
336.1
Precise sep
46.39
Cdsa2 id
LDS 2728
Constellation
Draco
Ra deg
16.260527777777778
De deg
61.92638888888889
last precise pa
336.1
last precise sep
46.39
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16157+6155 LDS2728 1999 2 342 40.0 15.60 18.00 D 161543.31+615405.0
16157+6155 LDS2728 2000 6 336 47.1 13.90 18.60 M3/4+WD: VD 161537.90+615535.0
16157+6155 LDS2728 2010 7 336 46.4 13.90 18.60 M3/4+WD: V 161537.90+615535.0

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