18458+3431 STF2390

 
 
18h 45m 49.83s +34 31' 06.6" P.A. 155 sep 4.3 mag 7.37,8.56 Sp A7V dist. 357.14 pc (1164.99 l.y.)
 
 
Coord 2000
18458+3431
Discov num
STF2390
Comp
Coord arcsec 2000
18 45 49.83 +34 31 06.6
Date first
1825
Date last
2016
Obs
54
Pa first
158
Pa last
155
P.A. Now (θ)
155°
Sep first
4.5
Sep last
4.3
Sep. Now (ρ)
4.3"
Mag pri
7.37
Mag sec
8.56
delta mag (ΔM)
1.19
Spectral class
A7V (white)
Pri motion ra
+005
Sec motion ra
+005
Pri motion dec
-014
Sec motion dec
-014
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
155.2
Precise sep
4.253
Constellation
Lyra
SAO
67350
HIP
92060
Tycho2
2646-02539-1
HD
173815
BD
BD+34 3310
Distance
357.14
Distance ly
1164.99
last precise pa
155.2
last precise sep
4.253
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18458+3431 STF2390 2005 44 155 4.2 7.37 8.56 A7V D 184549.83+343106.6
18458+3431 STF2390 2008 46 155 4.2 7.37 8.56 A7V D 184549.83+343106.6
18458+3431 STF2390 2010 50 156 4.4 7.37 8.56 A7V D 184549.83+343106.6
18458+3431 STF2390 2011 53 155 4.2 7.37 8.56 A7V N D 184549.83+343106.6
18458+3431 STF2390 2015 53 156 4.2 7.37 8.56 A7V N 184549.83+343106.6
18458+3431 STF2390 2016 54 155 4.3 7.37 8.56 A7V N 184549.83+343106.6

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