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Doubles in session


Current system
20145+1502
TOB 309


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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20145+1502 TOB 309

 
 
20h 14m 32.98s +15° 02' 52.9" P.A. 182.00 sep 11.6 mag 13.24,13.99
 
 
Coord 2000
20145+1502
 Discov num
TOB 309
 Comp
Coord arcsec 2000
20 14 32.98 +15 02 52.9
Date first
1982
 Date last
2015
 Obs
6
Pa first
182
 Pa last
182
 P.A. Now (θ)
182°
Sep first
11.9
 Sep last
11.6
 Sep. Now (ρ)
11.6"
Mag pri
13.24
 Mag sec
13.99
 delta mag (ΔM)
0.75
 Spectral class
Pri motion ra
-001
 Sec motion ra
-011
Pri motion dec
+031
 Sec motion dec
-069
Notes
N (See Notes)
rPM=1.438
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
182.2
 Precise sep
11.573
 Constellation
Delphinus
 Gaia DR2
1808276889131511040
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20145+1502 TOB 309 1998 2 183 11.7 12.60 14.20 D 201432.98+150254.4
20145+1502 TOB 309 2008 3 183 11.6 13.24 13.99 D 201432.98+150252.9
20145+1502 TOB 309 2010 5 183 10.7 13.24 13.99 N 201432.98+150252.9
20145+1502 TOB 309 2015 6 182 11.6 13.24 13.99 N 201432.98+150252.9

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