19138+3909 STF2487AC

 
 
19h 13m 45.49s +39 08' 45.5" P.A. 151 sep 161.5 mag 4.38,11.42 Sp B2.5IV dist. 425.53 pc (1388.08 l.y.)
 
 
Coord 2000
19138+3909
Discov num
STF2487
Comp
AC
Coord arcsec 2000
19 13 45.49 +39 08 45.5
Date first
1880
Date last
2014
Obs
10
Pa first
151
Pa last
151
P.A. Now (θ)
151°
Sep first
161.3
Sep last
161.5
Sep. Now (ρ)
161.5"
Mag pri
4.38
Mag sec
11.42
delta mag (ΔM)
7.04
Spectral class
B2.5IV (blue-white)
Pri motion ra
-001
Sec motion ra
-008
Pri motion dec
-001
Sec motion dec
-009
Notes
N (See Notes)
rPM=0.883
This double is not physical.
 
 
19138+3909 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Aladfar 68010 19138+3909 STF2487 AB 1777 2017 74 81 28.4 4.38 8.58 4.20
Show 68010 19138+3909 STF2487 AC 1880 2014 10 151 161.5 4.38 11.42 7.04 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
150.7
Precise sep
161.51
Constellation
Lyra
SAO
68010
HIP
94481
Tycho2
3121-02285-1
Gaia DR2
2099679223187100800
HD
180163
HR
7298
GC
26507
BD
BD+38 3490
Bayer
Eta Lyrae
Bayer name
Eta Lyr
Flamsteed
20 Lyrae
Flamsteed name
20 Lyr
Distance
425.53
Distance ly
1388.08
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19138+3909 STF2487 AC 1998 5 151 161.9 4.38 11.42 B2.5IV N D 191345.49+390845.5
19138+3909 STF2487 AC 2009 6 151 160.9 4.38 11.42 B2.5IV N D 191345.49+390845.5
19138+3909 STF2487 AC 2010 7 150 161.2 4.38 11.42 B2.5IV N D 191345.49+390845.5
19138+3909 STF2487 AC 2013 9 151 162.1 4.38 11.42 B2.5IV N 191345.49+390845.5
19138+3909 STF2487 AC 2014 10 151 161.5 4.38 11.42 B2.5IV N 191345.49+390845.5

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