21580+0556 STF2848

 
 
21h 58m 01.45s +05 56' 25.3" P.A. 57 sep 10.9 mag 7.21,7.73 Sp Am+F2V
 
 
Coord 2000
21580+0556
Discov num
STF2848
Comp
Coord arcsec 2000
21 58 01.45 +05 56 25.3
Date first
1777
Date last
2015
Obs
103
Pa first
75
Pa last
57
P.A. Now (θ)
57°
Sep first
16.0
Sep last
10.9
Sep. Now (ρ)
10.9"
Mag pri
7.21
Mag sec
7.73
delta mag (ΔM)
0.52
Spectral class
Am+F2V (white/yellow-white)
Pri motion ra
+012
Sec motion ra
+022
Pri motion dec
-012
Sec motion dec
-014
Notes
N Z (See Notes, Parallax indicates components are physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Pegasus
Tycho2
0557-01531-1
HD
208718
last precise pa
57.2
last precise sep
10.85
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21580+0556 STF2848 2007 85 56 10.8 7.21 7.73 Am F2V D 215801.45+055625.3
21580+0556 STF2848 2011 91 56 10.9 7.21 7.73 Am F2V N D 215801.45+055625.3
21580+0556 STF2848 2012 95 56 10.9 7.21 7.73 Am F2V N D 215801.45+055625.3
21580+0556 STF2848 2013 98 56 10.8 7.21 7.73 Am F2V N D 215801.45+055625.3
21580+0556 STF2848 2015 101 56 10.9 7.21 7.73 Am+F2V NZ 215801.45+055625.3

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