20250+1451 J   842

 
 
20h 24m 57.97s +14 51' 16.5" P.A. 180 sep 4.2 mag 9.90,11.70 Sp F2
 
 
Coord 2000
20250+1451
Discov num
J   842
Comp
Coord arcsec 2000
20 24 57.97 +14 51 16.5
Date first
1905
Date last
2015
Obs
8
Pa first
180
Pa last
180
P.A. Now (θ)
180°
Sep first
3.9
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
9.90
Mag sec
11.70
delta mag (ΔM)
1.8
Spectral class
F2 (yellow-white)
Pri motion ra
+006
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
180
Precise sep
4.176
Constellation
Delphinus
SAO
106083
Tycho2
1086-00019-1
Gaia DR2
98300761600
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20250+1451 J 842 1997 6 180 4.0 10.04 12.10 F2 D 202457.97+145116.5
20250+1451 J 842 2009 7 179 4.2 10.04 12.10 F2 D 202457.97+145116.5
20250+1451 J 842 2015 8 180 4.2 9.90 11.70 F2 202457.97+145116.5

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