00554+3040 BU  500

 
 
00h 55m 22.96s +30 39' 41.9" P.A. 123 sep 0.6 mag 8.38,8.78 Sp A2 dist. 257.73 pc (840.72 l.y.)
 
 
Coord 2000
00554+3040
Discov num
BU  500
Comp
Coord arcsec 2000
00 55 22.96 +30 39 41.9
Date first
1878
Date last
2015
Obs
69
Pa first
109
Pa last
123
P.A. Now (θ)
123°
Sep first
1.0
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
8.38
Mag sec
8.78
delta mag (ΔM)
0.4
Spectral class
A2 (white)
Pri motion ra
+028
Sec motion ra
+028
Pri motion dec
+001
Sec motion dec
+001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
122.7
Precise sep
0.59
Cdsa2 id
BU 500
Constellation
Pisces
SAO
54265
HIP
4327
Tycho2
2277-00367-1
HD
5315
BD
BD+29 150
Ra deg
0.9230444444444444
De deg
30.661638888888888
Distance
257.73
Distance ly
840.72
last precise pa
122.7
last precise sep
0.59
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00554+3040 BU 500 2006 70 121 0.5 8.38 8.78 A2 D 005522.96+303941.9
00554+3040 BU 500 2008 71 123 0.5 8.38 8.78 A2 D 005522.96+303941.9
00554+3040 BU 500 2009 73 122 0.5 8.38 8.78 A2 D 005522.96+303941.9
00554+3040 BU 500 2015 69 123 0.6 8.38 8.78 A2 005522.96+303941.9

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