19162+2817 STF2491

 
 
19h 16m 11.63s +28 16' 50.2" P.A. 230 sep 1.4 mag 8.58,9.71 Sp Am
 
 
Coord 2000
19162+2817
Discov num
STF2491
Comp
Coord arcsec 2000
19 16 11.63 +28 16 50.2
Date first
1828
Date last
2016
Obs
90
Pa first
207
Pa last
230
P.A. Now (θ)
230°
Sep first
1.1
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
8.58
Mag sec
9.71
delta mag (ΔM)
1.13
Spectral class
Am (white)
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
+004
Sec motion dec
+004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
229.7
Precise sep
1.38
Constellation
Lyra
Tycho2
2136-03401-1
HD
180638
last precise pa
229.7
last precise sep
1.38
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19162+2817 STF2491 2005 94 229 1.3 8.58 9.71 Am D 191611.63+281650.2
19162+2817 STF2491 2009 96 229 1.4 8.58 9.71 Am D 191611.63+281650.2
19162+2817 STF2491 2011 97 229 1.3 8.58 9.71 Am 191611.63+281650.2
19162+2817 STF2491 2016 90 230 1.4 8.58 9.71 Am 191611.63+281650.2

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