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
Cdsa2 id
HEI 817
Constellation
Aquila
Ra deg
19.958163888888887
De deg
5.449277777777778
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

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