20170+1655 J  3070

 
 
20h 16m 58.99s +16 55' 04.5" sep 5.5 mag 11.66,12.80
 
 
Coord 2000
20170+1655
Discov num
J  3070
Comp
Coord arcsec 2000
20 16 58.99 +16 55 04.5
Date first
1944
Date last
2015
Obs
9
Pa first
15
Pa last
0
P.A. Now (θ)
Sep first
5.0
Sep last
5.5
Sep. Now (ρ)
5.5"
Mag pri
11.66
Mag sec
12.80
delta mag (ΔM)
1.14
Spectral class
Pri motion ra
+004
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
359.6
Precise sep
5.463
Constellation
Sagitta
Tycho2
1635-00033-1
Gaia DR2
33031497344
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20170+1655 J 3070 1980 2 6 4.9 11.66 12.80 201658.76+165411.8
20170+1655 J 3070 2001 5 2 5.5 11.66 12.80 201658.99+165504.5
20170+1655 J 3070 2015 6 0 5.5 11.66 12.80 201658.99+165504.5

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