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Current system
20183+1539
CHE 293


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

20183+1539 CHE 293

 
 
20h 18m 20.05s +15° 38' 43.2" P.A. 354.00 sep 24.8 mag 11.81,12.71
 
 
Coord 2000
20183+1539
 Discov num
CHE 293
 Comp
Coord arcsec 2000
20 18 20.05 +15 38 43.2
Date first
1910
 Date last
2019
 Obs
13
Pa first
353
 Pa last
354
 P.A. Now (θ)
354°
Sep first
24.6
 Sep last
24.8
 Sep. Now (ρ)
24.8"
Mag pri
11.81
 Mag sec
12.71
 delta mag (ΔM)
0.9
 Spectral class
Pri motion ra
+001
 Sec motion ra
-005
Pri motion dec
+005
 Sec motion dec
+005
Notes
rPM=0.849
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
353.9
 Precise sep
24.8
 Constellation
Delphinus
 Gaia DR2
1808390280568012032
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20183+1539 CHE 293 1982 2 174 24.8 10.06 10.12 201819.88+153908.7
20183+1539 CHE 293 2008 3 174 25.1 10.06 10.12 201819.88+153908.7
20183+1539 CHE 293 2010 7 354 24.9 11.81 12.71 201820.05+153843.2
20183+1539 CHE 293 2015 8 354 25.0 11.81 12.71 201820.05+153843.2
20183+1539 CHE 293 2019 13 354 24.8 11.81 12.71 201820.05+153843.2

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