18472+3125 STF2397

 
 
18h 47m 13.09s +31 24' 20.2" P.A. 266 sep 3.9 mag 7.47,9.08 Sp G3III dist. 271 pc (884 l.y.)
 
 
Coord 2000
18472+3125
Discov num
STF2397
Comp
Coord arcsec 2000
18 47 13.09 +31 24 20.2
Date first
1830
Date last
2011
Obs
31
Pa first
267
Pa last
266
P.A. Now (θ)
266°
Sep first
3.7
Sep last
3.9
Sep. Now (ρ)
3.9"
Mag pri
7.47
Mag sec
9.08
delta mag (ΔM)
1.61
Spectral class
G3III (yellow)
Pri motion ra
+001
Sec motion ra
+001
Pri motion dec
+016
Sec motion dec
+016
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
265.8
Precise sep
3.874
Constellation
Lyra
SAO
67378
HIP
92178
Tycho2
2638-01560-1
HD
174022
BD
BD+31 3365
Distance
271
Distance ly
884
last precise pa
265.8
last precise sep
3.874
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18472+3125 STF2397 2005 27 267 3.9 7.47 9.08 G3III 184713.09+312420.2
18472+3125 STF2397 2009 29 267 3.9 7.47 9.08 G3III 184713.09+312420.2
18472+3125 STF2397 2011 32 266 3.9 7.47 9.08 G3III 184713.09+312420.2

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