02493+1728 STF 311AB (Pi Ari)

 
 
02h 49m 17.55s +17 27' 51.5" P.A. 119 sep 3.2 mag 5.32,7.95 Sp B6V dist. 239.23 pc (780.37 l.y.)
 
 
Coord 2000
02493+1728
Discov num
STF 311
Comp
AB
Coord arcsec 2000
02 49 17.55 +17 27 51.5
Date first
1821
Date last
2012
Obs
78
Pa first
124
Pa last
119
P.A. Now (θ)
119°
Sep first
3.1
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
5.32
Mag sec
7.95
delta mag (ΔM)
2.63
Spectral class
B6V (blue-white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-011
Sec motion dec
-015
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
02493+1728 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Pi Ari 93127 02493+1728 STF 311 AB 1821 2012 78 119 3.2 5.32 7.95 2.63 <===
Show 93127 02493+1728 STF 311 AC 1782 2012 44 112 24.1 5.32 10.72 5.40
Show 93127 02493+1728 ARN 31 AD 1895 2011 11 134 220.2 5.32 10.49 5.17
Show 93127 02493+1728 TOB 364 AE 1997 1997 1 184 14.2 5.32 14.00 8.68
Show 93127 02493+1728 TOB 364 AF 1997 1997 1 17 17.5 5.32 15.00 9.68
Show 93127 02493+1728 STF 311 BC 1832 2017 30 110 23.8 7.95 10.72 2.77
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Pi Ari
Constellation
Aries
SAO
93127
HIP
13165
Tycho2
1223-01987-1
HD
17543
HR
836
GC
3378
BD
BD+16 355
Bayer
Pi Arietis
Bayer name
Pi Ari
Flamsteed
42 Arietis
Flamsteed name
42 Ari
Distance
239.23
Distance ly
780.37
last precise pa
118.9
last precise sep
3.18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02493+1728 STF 311 AB 2005 71 118 3.3 5.32 7.95 B6V N D 024917.56+172751.6
02493+1728 STF 311 AB 2009 74 121 3.3 5.32 7.95 B6V N D 024917.55+172751.5
02493+1728 STF 311 AB 2011 76 120 3.5 5.32 7.95 B6V N D 024917.55+172751.5
02493+1728 STF 311 AB 2012 78 119 3.1 5.32 7.95 B6V N D 024917.55+172751.5

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