20018+2716 A   277

 
 
20h 01m 49.05s +27 15' 41.8" P.A. 340 sep 4.3 mag 9.15,13.10 Sp A0
 
 
Coord 2000
20018+2716
Discov num
A   277
Comp
Coord arcsec 2000
20 01 49.05 +27 15 41.8
Date first
1901
Date last
1998
Obs
5
Pa first
339
Pa last
340
P.A. Now (θ)
340°
Sep first
3.8
Sep last
4.3
Sep. Now (ρ)
4.3"
Mag pri
9.15
Mag sec
13.10
delta mag (ΔM)
3.95
Spectral class
A0 (white)
Pri motion ra
-018
Sec motion ra
Pri motion dec
+023
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
339.6
Precise sep
4.28
Constellation
Vulpecula
SAO
88092
Tycho2
2149-00282-1
HD
339354
last precise pa
339.6
last precise sep
4.28
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20018+2716 A 277 1998 5 340 4.3 9.15 13.10 A0 D 200149.05+271541.8

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