12440+2110 STT 253

 
 
12h 43m 59.85s +21 10' 22.9" P.A. 238 sep 6.3 mag 7.99,10.51 Sp B0 dist. 156.25 pc (509.69 l.y.)
 
 
Coord 2000
12440+2110
Discov num
STT 253
Comp
Coord arcsec 2000
12 43 59.85 +21 10 22.9
Date first
1843
Date last
2012
Obs
24
Pa first
232
Pa last
238
P.A. Now (θ)
238°
Sep first
5.8
Sep last
6.3
Sep. Now (ρ)
6.3"
Mag pri
7.99
Mag sec
10.51
delta mag (ΔM)
2.52
Spectral class
B0 (blue-white)
Pri motion ra
-020
Sec motion ra
-024
Pri motion dec
+025
Sec motion dec
+022
Notes
rPM=0.154 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
237.9
Precise sep
6.27
Cdsa2 id
STT 253
Constellation
Coma Berenices
SAO
82462
HIP
62130
Tycho2
1448-02405-1
HD
110721
BD
BD+21 2451
Ra deg
12.733291666666666
De deg
21.17302777777778
Distance
156.25
Distance ly
509.69
last precise pa
237.9
last precise sep
6.27
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12440+2110 STT 253 2000 20 238 6.5 7.99 10.51 B0 D 124359.85+211022.9
12440+2110 STT 253 2001 22 237 6.7 7.99 10.51 B0 D 124359.85+211022.9
12440+2110 STT 253 2012 23 238 6.3 7.99 10.51 B0 D 124359.85+211022.9

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