22181+1658 J   205

 
 
22h 18m 05.75s +16 58' 21.4" P.A. 294 sep 2.8 mag 9.40,12.00 Sp F0
 
 
Coord 2000
22181+1658
Discov num
J   205
Comp
Coord arcsec 2000
22 18 05.75 +16 58 21.4
Date first
1910
Date last
2015
Obs
9
Pa first
204
Pa last
294
P.A. Now (θ)
294°
Sep first
2.1
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
9.40
Mag sec
12.00
delta mag (ΔM)
2.6
Spectral class
F0 (yellow-white)
Pri motion ra
+018
Sec motion ra
Pri motion dec
+008
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
293.5
Precise sep
2.79
Constellation
Pegasus
last precise pa
293.5
last precise sep
2.79
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22181+1658 J 205 2002 6 296 3.2 9.40 12.00 221805.75+165821.4
22181+1658 J 205 2013 8 292 3.1 9.40 12.00 221805.75+165821.4
22181+1658 J 205 2015 9 294 2.8 9.40 12.00 F0 221805.75+165821.4

If you need more information about this double, apply for a data request form to the WDS.