18525+0420 J  2155

 
 
18h 52m 17.48s +04 20' 08.1" P.A. 276 sep 8.1 mag 9.80,12.00
 
 
Coord 2000
18525+0420
Discov num
J  2155
Comp
Coord arcsec 2000
18 52 17.48 +04 20 08.1
Date first
1942
Date last
2015
Obs
5
Pa first
270
Pa last
276
P.A. Now (θ)
276°
Sep first
4.0
Sep last
8.1
Sep. Now (ρ)
8.1"
Mag pri
9.80
Mag sec
12.00
delta mag (ΔM)
2.2
Spectral class
Pri motion ra
+023
Sec motion ra
-020
Pri motion dec
-060
Sec motion dec
-036
Notes
rPM=0.766
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
275.8
Precise sep
8.05
Constellation
Serpens
last precise pa
275.8
last precise sep
8.05
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18525+0420 J 2155 1942 1 270 4.0 9.80 12.00 185212.00+042000.0
18525+0420 J 2155 2000 2 276 7.6 9.80 12.00 185217.48+042008.1
18525+0420 J 2155 2015 4 276 8.1 9.80 12.00 185217.48+042008.1

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