18544-2727 B   411

 
 
18h 54m 22.07s -27 27' 09.3" P.A. 40 sep 4.1 mag 9.80,11.30 Sp K2III:
 
 
Coord 2000
18544-2727
Discov num
B   411
Comp
Coord arcsec 2000
18 54 22.07 -27 27 09.3
Date first
1927
Date last
1999
Obs
5
Pa first
41
Pa last
40
P.A. Now (θ)
40°
Sep first
3.9
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
9.80
Mag sec
11.30
delta mag (ΔM)
1.5
Spectral class
K2III: (yellow-orange)
Pri motion ra
-017
Sec motion ra
+019
Pri motion dec
-022
Sec motion dec
-056
Notes
rPM=0.837
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
39.8
Precise sep
4.058
Constellation
Sagittarius
Tycho2
6868-00412-1
HD
174997
last precise pa
39.8
last precise sep
4.058
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18544-2727 B 411 1965 4 41 3.8 9.80 11.30 K2III: 185422.07-272709.3
18544-2727 B 411 1999 5 40 4.1 9.80 11.30 K2III: 185422.07-272709.3

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