16001-3824 RMK  21AB (Eta Lup)

 
 
16h 00m 07.33s -38 23' 48.1" P.A. 19 sep 15 mag 3.37,7.50 Sp B2.5IV dist. 135.5 pc (442 l.y.)
 
 
Coord 2000
16001-3824
Discov num
RMK  21
Comp
AB
Coord arcsec 2000
16 00 07.33 -38 23 48.1
Date first
1834
Date last
2016
Obs
41
Pa first
22
Pa last
19
P.A. Now (θ)
19°
Sep first
13.5
Sep last
15.0
Sep. Now (ρ)
15"
Mag pri
3.37
Mag sec
7.50
delta mag (ΔM)
4.13
Spectral class
B2.5IV (blue-white)
Pri motion ra
-017
Sec motion ra
-026
Pri motion dec
-026
Sec motion dec
-030
Notes
N (See Notes)
rPM=0.248 (< 0.3, Physical double)
This double is physical.
 
 
16001-3824 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Eta Lup 207208 16001-3824 RMK 21 AB 1834 2016 41 19 15.0 3.37 7.50 4.13 <===
Show 207208 16001-3824 RMK 21 AC 1825 2007 13 248 115.8 3.37 9.39 6.02
Show 207208 16001-3824 ANT 2 AD 1905 2007 5 293 135.5 3.37 10.85 7.48
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
18.7
Precise sep
14.97
Name
Eta Lup
Constellation
Lupus
SAO
207208
HIP
78384
Tycho2
7851-01814-1
HD
143118
HR
5948
GC
21478
CD
CD-3810797
CP
CP-38 6322
Bayer
Eta Lupi
Bayer name
Eta Lup
Distance
135.5
Distance ly
442
last precise pa
18.7
last precise sep
14.97
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16001-3824 RMK 21 AB 2007 36 20 14.4 3.37 7.50 B2.5IV N D 160007.33-382348.1
16001-3824 RMK 21 AB 2010 38 19 14.9 3.37 7.50 B2.5IV N D 160007.33-382348.1
16001-3824 RMK 21 AB 2013 40 19 15.0 3.37 7.50 B2.5IV N D 160007.33-382348.1
16001-3824 RMK 21 AB 2016 41 19 15.0 3.37 7.50 B2.5IV N 160007.33-382348.1

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