18498-7157 SKF1506AB,C

 
 
18h 49m 48.69s -71 57' 10.1" P.A. 306.00 sep 20.9 mag 11.48,11.81 Sp K0Ve+K0V
 
 
Coord 2000
18498-7157
Discov num
SKF1506
Comp
AB,C
Coord arcsec 2000
18 49 48.69 -71 57 10.1
Date first
1892
Date last
2015
Obs
10
Pa first
308
Pa last
306
P.A. Now (θ)
306°
Sep first
20.7
Sep last
20.9
Sep. Now (ρ)
20.9"
Mag pri
11.48
Mag sec
11.81
delta mag (ΔM)
0.33
Spectral class
K0Ve+K0V (yellow-orange/yellow-orange)
Pri motion ra
+014
Sec motion ra
+014
Pri motion dec
-020
Sec motion dec
-018
Notes
V (Proper motion indicates physical)
rPM=0.082 (< 0.3, Physical double)
This double is physical.
 
 
18498-7157 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 49 49 -71 57 10 TDS 949 AB 2015 3 134 0.9 11.48 11.88 0.40
Show 18 49 49 -71 57 10 SKF 1506 AB,C 2015 10 306 20.9 11.48 11.81 0.33 <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
306.4
Precise sep
20.901
Constellation
Hydra
Tycho2
9300-00891-1
Gaia DR2
6418630406839962368
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18498-7157 SKF1506 AB,C 2010 6 306 20.5 11.70 12.40 K0Ve+K0V V 184948.69-715710.1
18498-7157 SKF1506 AB,C 2015 9 306 19.9 11.48 11.81 K0Ve+K0V V 184948.69-715710.1

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