18572+0500 HEI 898

 
 
18h 57m 05.40s +04 58' 56.1" P.A. 183 sep 2.2 mag 11.34,12.20
 
 
Coord 2000
18572+0500
Discov num
HEI 898
Comp
Coord arcsec 2000
18 57 05.40 +04 58 56.1
Date first
1995
Date last
2008
Obs
3
Pa first
185
Pa last
183
P.A. Now (θ)
183°
Sep first
1.9
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
11.34
Mag sec
12.20
delta mag (ΔM)
0.86
Spectral class
Pri motion ra
+004
Sec motion ra
Pri motion dec
+014
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
183.3
Precise sep
2.23
Constellation
Serpens
Tycho2
0457-00193-1
last precise pa
183.3
last precise sep
2.23
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18572+0500 HEI 898 1995 1 185 1.9 11.34 12.20 185705.40+045856.1
18572+0500 HEI 898 2008 2 183 2.2 11.34 12.20 185705.40+045856.1

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