19371+1723 HU  342

 
 
19h 37m 07.56s +17 23' 11.0" P.A. 256 sep 4.5 mag 9.83,10.36 Sp F8
 
 
Coord 2000
19371+1723
Discov num
HU  342
Comp
Coord arcsec 2000
19 37 07.56 +17 23 11.0
Date first
1897
Date last
2017
Obs
21
Pa first
250
Pa last
256
P.A. Now (θ)
256°
Sep first
3.7
Sep last
4.5
Sep. Now (ρ)
4.5"
Mag pri
9.83
Mag sec
10.36
delta mag (ΔM)
0.53
Spectral class
F8 (yellow-white)
Pri motion ra
+012
Sec motion ra
-024
Pri motion dec
-011
Sec motion dec
-013
Notes
rPM=1.321
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
255.8
Precise sep
4.549
Constellation
Sagitta
Tycho2
1606-01000-1
HD
232011
last precise pa
255.8
last precise sep
4.549
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19371+1723 HU 342 2001 15 255 4.5 9.83 10.36 F8 D 193707.56+172311.0
19371+1723 HU 342 2009 16 255 4.4 9.83 10.36 F8 D 193707.56+172311.0
19371+1723 HU 342 2011 17 254 4.4 9.83 10.36 F8 D 193707.56+172311.0
19371+1723 HU 342 2017 21 256 4.5 9.83 10.36 F8 193707.56+172311.0

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