03171+4029 STF 369

 
 
03h 17m 11.45s +40 28' 58.6" P.A. 29 sep 3.6 mag 6.83,7.72 Sp B9VpSi dist. 197.63 pc (644.67 l.y.)
 
 
Coord 2000
03171+4029
Discov num
STF 369
Comp
Coord arcsec 2000
03 17 11.45 +40 28 58.6
Date first
1828
Date last
2016
Obs
78
Pa first
28
Pa last
29
P.A. Now (θ)
29°
Sep first
2.0
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
6.83
Mag sec
7.72
delta mag (ΔM)
0.89
Spectral class
B9VpSi (blue-white)
Pri motion ra
+014
Sec motion ra
+014
Pri motion dec
-031
Sec motion dec
-031
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
SAO
38700
HIP
15282
Tycho2
2852-02127-1
HD
20283
HR
979
BD
BD+39 743
Distance
197.63
Distance ly
644.67
last precise pa
29.2
last precise sep
3.573
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03171+4029 STF 369 2007 68 30 3.5 6.83 7.72 B9VpSi D 031711.45+402858.6
03171+4029 STF 369 2008 69 30 3.6 6.83 7.72 B9VpSi D 031711.45+402858.6
03171+4029 STF 369 2010 73 29 3.4 6.83 7.72 B9VpSi D 031711.45+402858.6
03171+4029 STF 369 2014 76 31 3.6 6.83 7.72 B9VpSi D 031711.45+402858.6
03171+4029 STF 369 2015 77 30 3.6 6.83 7.72 B9VpSi 031711.45+402858.6

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