15173+0726 SKF2723

 
 
15h 17m 18.75s +07 26' 09.3" P.A. 17.00 sep 1.9 mag 19.70,22.60 Sp DA+M4
 
 
Coord 2000
15173+0726
Discov num
SKF2723
Comp
Coord arcsec 2000
15 17 18.75 +07 26 09.3
Date first
2003
Date last
2015
Obs
3
Pa first
15
Pa last
17
P.A. Now (θ)
17°
Sep first
1.7
Sep last
1.9
Sep. Now (ρ)
1.9"
Mag pri
19.70
Mag sec
22.60
delta mag (ΔM)
2.9
Spectral class
DA+M4 (white dwarf/red)
Pri motion ra
-014
Sec motion ra
Pri motion dec
-021
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
17.4
Precise sep
1.864
Constellation
Serpens
Gaia DR2
47812077696
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15173+0726 SKF2723 2006 2 14 1.7 19.70 22.60 DA+M4 151718.75+072609.3
15173+0726 SKF2723 2015 3 17 1.9 19.70 22.60 DA+M4 151718.75+072609.3

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