20313+6121 STI 987

 
 
20h 31m 18.40s +61 21' 09.3" P.A. 36 sep 5.4 mag 10.84,11.60
 
 
Coord 2000
20313+6121
Discov num
STI 987
Comp
Coord arcsec 2000
20 31 18.40 +61 21 09.3
Date first
1903
Date last
2015
Obs
10
Pa first
46
Pa last
36
P.A. Now (θ)
36°
Sep first
5.6
Sep last
5.4
Sep. Now (ρ)
5.4"
Mag pri
10.84
Mag sec
11.60
delta mag (ΔM)
0.76
Spectral class
Pri motion ra
-019
Sec motion ra
+028
Pri motion dec
-024
Sec motion dec
+019
Notes
rPM=1.883
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
36.2
Precise sep
5.394
Constellation
Cepheus
Tycho2
4233-01164-1
Gaia DR2
20232220928
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20313+6121 STI 987 2000 4 36 5.2 10.84 11.60 D 203118.40+612109.3
20313+6121 STI 987 2003 5 36 5.4 10.84 11.60 D 203118.40+612109.3
20313+6121 STI 987 2011 6 36 5.4 10.84 11.60 203118.40+612109.3
20313+6121 STI 987 2015 7 36 5.4 10.84 11.60 203118.40+612109.3

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