19575+0527 HEI 817

 
 
19h 57m 29.39s +05 26' 57.4" P.A. 340 sep 4.7 mag 10.87,12.50 Sp F8
 
 
Coord 2000
19575+0527
Discov num
HEI 817
Comp
Coord arcsec 2000
19 57 29.39 +05 26 57.4
Date first
1972
Date last
2015
Obs
7
Pa first
330
Pa last
340
P.A. Now (θ)
340°
Sep first
3.8
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
10.87
Mag sec
12.50
delta mag (ΔM)
1.63
Spectral class
F8 (yellow-white)
Pri motion ra
-009
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
339.8
Precise sep
4.72
Constellation
Aquila
Tycho2
0489-01380-1
last precise pa
339.8
last precise sep
4.72
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19575+0527 HEI 817 2000 4 336 4.3 10.87 12.50 F8 D 195729.39+052657.4
19575+0527 HEI 817 2015 6 340 4.7 10.87 12.50 F8 195729.39+052657.4

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