17249+3045 B  2544

 
 
17h 24m 53.50s +30 45' 05.7" P.A. 202 sep 1.1 mag 8.60,12.50 Sp K2
 
 
Coord 2000
17249+3045
Discov num
B  2544
Comp
Coord arcsec 2000
17 24 53.50 +30 45 05.7
Date first
1957
Date last
2007
Obs
5
Pa first
207
Pa last
202
P.A. Now (θ)
202°
Sep first
1.3
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
8.60
Mag sec
12.50
delta mag (ΔM)
3.9
Spectral class
K2 (yellow-orange)
Pri motion ra
+000
Sec motion ra
Pri motion dec
-012
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
201.5
Precise sep
1.092
Constellation
Hercules
SAO
66022
Tycho2
2605-00773-1
last precise pa
201.5
last precise sep
1.092
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17249+3045 B 2544 1961 3 202 1.3 8.60 12.50 K2 172453.50+304505.7
17249+3045 B 2544 2007 5 202 1.1 8.60 12.50 K2 172453.50+304505.7

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