17240-0050 STF2156

 
 
17h 23m 57.34s -00 50' 06.8" P.A. 36 sep 3.8 mag 8.95,9.50 Sp F2
 
 
Coord 2000
17240-0050
Discov num
STF2156
Comp
Coord arcsec 2000
17 23 57.34 -00 50 06.8
Date first
1830
Date last
2016
Obs
52
Pa first
32
Pa last
36
P.A. Now (θ)
36°
Sep first
3.3
Sep last
3.8
Sep. Now (ρ)
3.8"
Mag pri
8.95
Mag sec
9.50
delta mag (ΔM)
0.55
Spectral class
F2 (yellow-white)
Pri motion ra
-043
Sec motion ra
-045
Pri motion dec
-002
Sec motion dec
+004
Notes
rPM=0.14 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
35.8
Precise sep
3.844
Constellation
Ophiuchus
SAO
141648
Tycho2
5067-00288-1
HD
157544
last precise pa
35.8
last precise sep
3.844
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17240-0050 STF2156 2001 49 35 3.7 8.95 9.50 F2 D 172357.34-005006.8
17240-0050 STF2156 2007 50 36 3.8 8.95 9.50 F2 D 172357.34-005006.8
17240-0050 STF2156 2011 51 35 4.0 8.95 9.50 F2 D 172357.34-005006.8
17240-0050 STF2156 2016 52 36 3.8 8.95 9.50 F2 172357.34-005006.8

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