18311-6943 DON 901

 
 
18h 31m 04.67s -69 42' 33.0" P.A. 231.00 sep 1.6 mag 8.81,11.80 Sp A4V
 
 
Coord 2000
18311-6943
Discov num
DON 901
Comp
Coord arcsec 2000
18 31 04.67 -69 42 33.0
Date first
1928
Date last
2016
Obs
4
Pa first
230
Pa last
231
P.A. Now (θ)
231°
Sep first
1.3
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
8.81
Mag sec
11.80
delta mag (ΔM)
2.99
Spectral class
A4V (white)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-029
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
230.9
Precise sep
1.551
Constellation
Pavo
Tycho2
9295-01688-1
Gaia DR2
6432001464668679040
HD
169549
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18311-6943 DON 901 1948 2 229 1.2 8.81 11.80 A4V 183104.67-694233.0
18311-6943 DON 901 2015 3 231 1.6 8.81 11.80 A4V 183104.67-694233.0

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