18528-1658 J  2238

 
 
18h 52m 52.08s -16 59' 31.3" P.A. 182 sep 4.4 mag 10.00,10.20
 
 
Coord 2000
18528-1658
Discov num
J  2238
Comp
Coord arcsec 2000
18 52 52.08 -16 59 31.3
Date first
1942
Date last
2015
Obs
7
Pa first
185
Pa last
182
P.A. Now (θ)
182°
Sep first
4.0
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
10.00
Mag sec
10.20
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-004
Sec motion ra
-002
Pri motion dec
+047
Sec motion dec
-070
Notes
rPM=1.671
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
181.7
Precise sep
4.416
Constellation
Sagittarius
Gaia DR2
34262501888
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18528-1658 J 2238 2001 3 183 4.4 10.00 10.20 D 185252.08-165931.3
18528-1658 J 2238 2010 6 183 3.4 10.00 10.20 185252.08-165931.3
18528-1658 J 2238 2015 7 182 4.4 10.00 10.20 185252.08-165931.3

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