02507+5700 SCA   5

 
 
02h 50m 42.78s +57 00' 07.0" P.A. 38 sep 16 mag 9.34,11.80 Sp K2V
 
 
Coord 2000
02507+5700
Discov num
SCA   5
Comp
Coord arcsec 2000
02 50 42.78 +57 00 07.0
Date first
1911
Date last
2016
Obs
8
Pa first
36
Pa last
38
P.A. Now (θ)
38°
Sep first
16.0
Sep last
16.0
Sep. Now (ρ)
16"
Mag pri
9.34
Mag sec
11.80
delta mag (ΔM)
2.46
Spectral class
K2V (yellow-orange)
Pri motion ra
+049
Sec motion ra
+139
Pri motion dec
-156
Sec motion dec
-142
Notes
rPM=0.458
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
37.6
Precise sep
16.025
Constellation
Perseus
SAO
23652
Tycho2
3708-01209-1
HD
17495
last precise pa
37.6
last precise sep
16.025
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02507+5700 SCA 5 1998 4 38 16.1 9.34 11.80 D 025042.78+570007.0
02507+5700 SCA 5 2003 5 37 15.8 9.34 11.80 D 025042.78+570007.0
02507+5700 SCA 5 2013 6 38 16.2 9.34 11.80 K2V 025042.78+570007.0
02507+5700 SCA 5 2016 8 38 16.0 9.34 11.80 K2V 025042.78+570007.0

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