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
Cdsa2 id
J 2155
Constellation
Serpens
Ra deg
18.87152222222222
De deg
4.335583333333333
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

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