18413+0433 J  2143

 
 
18h 41m 20.32s +04 33' 29.7" P.A. 319 sep 15.1 mag 7.11,12.10 Sp F8 dist. 39 pc (127.22 l.y.)
 
 
Coord 2000
18413+0433
Discov num
J  2143
Comp
Coord arcsec 2000
18 41 20.32 +04 33 29.7
Date first
1942
Date last
2010
Obs
5
Pa first
315
Pa last
319
P.A. Now (θ)
319°
Sep first
10.0
Sep last
15.1
Sep. Now (ρ)
15.1"
Mag pri
7.11
Mag sec
12.10
delta mag (ΔM)
4.99
Spectral class
F8 (yellow-white)
Pri motion ra
+060
Sec motion ra
+054
Pri motion dec
-038
Sec motion dec
-029
Notes
rPM=0.152 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
319.3
Precise sep
15.08
Constellation
Serpens
HIP
91645
Tycho2
0455-00981-1
HD
172675
BD
BD+04 3838
Distance
39
Distance ly
127.22
last precise pa
319.3
last precise sep
15.08
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18413+0433 J 2143 1942 1 315 10.0 7.10 12.10 F8 184120.32+043329.7
18413+0433 J 2143 2009 2 318 15.0 7.10 12.10 F8 184120.32+043329.7
18413+0433 J 2143 2010 5 319 13.6 7.11 12.10 F8 184120.32+043329.7

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