02018+4738 A   820

 
 
02h 01m 46.86s +47 37' 54.0" P.A. 246 sep 2 mag 9.73,12.76 Sp A0 dist. 2564.1 pc (8364.09 l.y.)
 
 
Coord 2000
02018+4738
Discov num
A   820
Comp
Coord arcsec 2000
02 01 46.86 +47 37 54.0
Date first
1904
Date last
2016
Obs
7
Pa first
246
Pa last
246
P.A. Now (θ)
246°
Sep first
1.7
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
9.73
Mag sec
12.76
delta mag (ΔM)
3.03
Spectral class
A0 (white)
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-006
Sec motion dec
-004
Notes
rPM=0.316
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
246.3
Precise sep
2.02
Constellation
Perseus
SAO
37707
HIP
9462
Tycho2
3284-02173-1
BD
BD+46 495
Distance
2564.1
Distance ly
8364.09
last precise pa
246.3
last precise sep
2.02
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02018+4738 A 820 1991 6 248 2.0 9.73 12.76 A0 020146.86+473754.0
02018+4738 A 820 2016 7 246 2.0 9.73 12.76 A0 020146.86+473754.0

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