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Current system
20147+1602
CHE 236


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

20147+1602 CHE 236

 
 
20h 14m 42.19s +16° 01' 52.9" P.A. 291.00 sep 21.4 mag 12.98,13.77
 
 
Coord 2000
20147+1602
 Discov num
CHE 236
 Comp
Coord arcsec 2000
20 14 42.19 +16 01 52.9
Date first
1910
 Date last
2015
 Obs
11
Pa first
293
 Pa last
291
 P.A. Now (θ)
291°
Sep first
22.6
 Sep last
21.4
 Sep. Now (ρ)
21.4"
Mag pri
12.98
 Mag sec
13.77
 delta mag (ΔM)
0.79
 Spectral class
Pri motion ra
-030
 Sec motion ra
-005
Pri motion dec
-015
 Sec motion dec
-014
Notes
rPM=0.746
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
290.9
 Precise sep
21.432
 Constellation
Delphinus
 Gaia DR2
1808638151722555136
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20147+1602 CHE 236 1998 2 291 21.6 10.41 11.00 D 201442.19+160152.9
20147+1602 CHE 236 2008 3 291 21.5 10.41 11.00 D 201442.19+160152.9
20147+1602 CHE 236 2010 6 291 21.6 12.98 13.77 201442.19+160152.9
20147+1602 CHE 236 2015 7 291 21.4 12.98 13.77 201442.19+160152.9

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