18588+4041 STF2431

 
 
18h 58m 46.59s +40 40' 45.1" P.A. 236 sep 19 mag 6.17,9.61 Sp B3V
 
 
Coord 2000
18588+4041
Discov num
STF2431
Comp
Coord arcsec 2000
18 58 46.59 +40 40 45.1
Date first
1782
Date last
2013
Obs
44
Pa first
246
Pa last
236
P.A. Now (θ)
236°
Sep first
19.8
Sep last
19.0
Sep. Now (ρ)
19"
Mag pri
6.17
Mag sec
9.61
delta mag (ΔM)
3.44
Spectral class
B3V (blue-white)
Pri motion ra
+002
Sec motion ra
+000
Pri motion dec
+000
Sec motion dec
-004
Notes
N V (See Notes, Proper motion indicates physical)
rPM=1.118
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
235.7
Precise sep
19.009
Constellation
Lyra
SAO
47965
Tycho2
3123-01062-1
HD
176502
HR
7179
last precise pa
235.7
last precise sep
19.009
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18588+4041 STF2431 2006 36 237 19.3 6.17 9.61 B3V N D 185846.59+404045.1
18588+4041 STF2431 2009 37 236 19.3 6.17 9.61 B3V N D 185846.59+404045.1
18588+4041 STF2431 2012 42 233 19.2 6.17 9.61 B3V N D 185846.59+404045.1
18588+4041 STF2431 2013 43 236 19.0 6.17 9.61 B3V NV 185846.59+404045.1

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