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Current system
20178+1530
CHE 280


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

20178+1530 CHE 280

 
 
20h 17m 47.46s +15° 29' 14.5" P.A. 230.00 sep 27.7 mag 11.60,11.60
 
 
Coord 2000
20178+1530
 Discov num
CHE 280
 Comp
Coord arcsec 2000
20 17 47.46 +15 29 14.5
Date first
1904
 Date last
2015
 Obs
14
Pa first
235
 Pa last
230
 P.A. Now (θ)
230°
Sep first
24.9
 Sep last
27.7
 Sep. Now (ρ)
27.7"
Mag pri
11.60
 Mag sec
11.60
 delta mag (ΔM)
0
 Spectral class
Pri motion ra
+006
 Sec motion ra
-009
Pri motion dec
+004
 Sec motion dec
-033
Notes
rPM=1.167
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
230.2
 Precise sep
27.697
 Constellation
Delphinus
 Tycho2
1631-00753-1
Gaia DR2
1808364025429139712
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20178+1530 CHE 280 2000 5 231 27.2 11.69 11.76 D 201747.46+152914.5
20178+1530 CHE 280 2008 6 231 27.5 11.69 11.76 D 201747.46+152914.5
20178+1530 CHE 280 2010 9 230 27.5 11.60 11.60 201747.46+152914.5
20178+1530 CHE 280 2015 10 230 27.7 11.60 11.60 201747.46+152914.5

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