20405-0023 SKF1768

 
 
20h 40m 31.40s -00 22' 51.8" P.A. 18.00 sep 1.5 mag 19.80,21.30 Sp DA+M?
 
 
Coord 2000
20405-0023
Discov num
SKF1768
Comp
Coord arcsec 2000
20 40 31.40 -00 22 51.8
Date first
2001
Date last
2015
Obs
2
Pa first
41
Pa last
18
P.A. Now (θ)
18°
Sep first
1.8
Sep last
1.5
Sep. Now (ρ)
1.5"
Mag pri
19.80
Mag sec
21.30
delta mag (ΔM)
1.5
Spectral class
DA+M? (white dwarf/red)
Pri motion ra
+043
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
17.5
Precise sep
1.527
Constellation
Aquarius
SAO
144685
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20405-0023 SKF1768 2001 1 41 1.8 19.80 21.30 DA+M? 204031.40-002251.8
20405-0023 SKF1768 2015 2 18 1.5 19.80 21.30 DA+M? 204031.40-002251.8

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