15041-2517 UC 2911 (Sig Lib)

 
 
15h 04m 04.21s -25 16' 55.1" P.A. 51 sep 69.7 mag 6.50,16.40 Sp M2.5III dist. 88.42 pc (288.43 l.y.)
 
 
Coord 2000
15041-2517
Discov num
UC 2911
Comp
Coord arcsec 2000
15 04 04.21 -25 16 55.1
Date first
1998
Date last
2000
Obs
2
Pa first
51
Pa last
51
P.A. Now (θ)
51°
Sep first
70.1
Sep last
69.7
Sep. Now (ρ)
69.7"
Mag pri
6.50
Mag sec
16.40
delta mag (ΔM)
9.9
Spectral class
M2.5III (red)
Pri motion ra
-074
Sec motion ra
-090
Pri motion dec
-044
Sec motion dec
-056
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.189 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
50.8
Precise sep
69.729
Name
Sig Lib
Constellation
Libra
SAO
183139
HIP
73714
Tycho2
6752-01455-1
HD
133216
HR
5603
GC
20253
CD
CD-2411834
CP
CP-24 5432
Bayer
Sigma Librae
Bayer name
Sig Lib
Flamsteed
20 Librae
Flamsteed name
20 Lib
Distance
88.42
Distance ly
288.43
last precise pa
50.8
last precise sep
69.729
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15041-2517 UC 2911 2000 2 50 70.4 6.50 16.40 V 150404.21-251655.1

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