00187+1559 STF  25AB,C

 
 
00h 18m 42.80s +15 59' 26.5" P.A. 202.00 sep 171.5 mag 8.97,13.17 Sp F5 dist. 167.5 pc (546.38 l.y.)
 
 
Coord 2000
00187+1559
Discov num
STF  25
Comp
AB,C
Coord arcsec 2000
00 18 42.80 +15 59 26.5
Date first
1913
Date last
2000
Obs
6
Pa first
202
Pa last
202
P.A. Now (θ)
202°
Sep first
173.7
Sep last
171.5
Sep. Now (ρ)
171.5"
Mag pri
8.97
Mag sec
13.17
delta mag (ΔM)
4.2
Spectral class
F5 (yellow-white)
Pri motion ra
+030
Sec motion ra
+017
Pri motion dec
-039
Sec motion dec
+000
Notes
rPM=0.835
This double is not physical.
 
 
00187+1559 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 91839 00 18 43 +15 59 26 STF 25 AB 2016 62 196 1.0 9.31 9.55 0.24
Show 91839 00 18 43 +15 59 26 STF 25 AB,C 2000 6 202 171.5 8.97 13.17 4.20 <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
202.1
Precise sep
171.477
Constellation
Hydra
SAO
91839
HIP
1503
Tycho2
1179-00068-1
Gaia DR2
2792641032108486016
HD
1450
BD
BD+15 43
Distance
167.5
Distance ly
546.38
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00187+1559 STF 25 AB,C 1998 5 202 171.5 8.90 12.00 D 001842.80+155926.5
00187+1559 STF 25 AB,C 2000 6 202 171.5 8.90 12.00 D 001842.80+155926.5

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