20015+0040 HDO 315

 
 
20h 01m 32.86s +00 39' 46.3" P.A. 200 sep 7.7 mag 9.04,12.50 Sp K2
 
 
Coord 2000
20015+0040
Discov num
HDO 315
Comp
Coord arcsec 2000
20 01 32.86 +00 39 46.3
Date first
1900
Date last
2014
Obs
6
Pa first
199
Pa last
200
P.A. Now (θ)
200°
Sep first
9.4
Sep last
7.7
Sep. Now (ρ)
7.7"
Mag pri
9.04
Mag sec
12.50
delta mag (ΔM)
3.46
Spectral class
K2 (yellow-orange)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
199.6
Precise sep
7.7
Constellation
Aquila
SAO
125366
Tycho2
0494-02144-1
HD
189738
last precise pa
199.6
last precise sep
7.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20015+0040 HDO 315 1945 4 202 8.9 9.04 12.50 K2 D 200132.86+003946.3
20015+0040 HDO 315 2000 5 203 8.6 9.04 12.50 K2 200132.86+003946.3
20015+0040 HDO 315 2014 6 200 7.7 9.04 12.50 K2 200132.86+003946.3

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