18178+2640 LEP  88

 
 
18h 17m 49.80s +26 40' 16.7" P.A. 241 sep 39.8 mag 9.61,17.09 Sp M5V dist. 31.51 pc (102.79 l.y.)
 
 
Coord 2000
18178+2640
Discov num
LEP  88
Comp
Coord arcsec 2000
18 17 49.80 +26 40 16.7
Date first
1999
Date last
2010
Obs
3
Pa first
241
Pa last
241
P.A. Now (θ)
241°
Sep first
39.9
Sep last
39.8
Sep. Now (ρ)
39.8"
Mag pri
9.61
Mag sec
17.09
delta mag (ΔM)
7.48
Spectral class
M5V (red)
Pri motion ra
+330
Sec motion ra
+325
Pri motion dec
+102
Sec motion dec
+106
Notes
V (Proper motion indicates physical)
rPM=0.019 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
240.9
Precise sep
39.79
Constellation
Hercules
SAO
85902
HIP
89656
Tycho2
2101-01787-1
HD
335828
GL
NN 4047
BD
BD+26 3215
Distance
31.51
Distance ly
102.79
last precise pa
240.9
last precise sep
39.79
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18178+2640 LEP 88 1999 1 241 39.9 9.61 17.09 VD 181749.80+264016.7
18178+2640 LEP 88 2002 2 241 39.5 9.61 17.09 VD 181749.80+264016.7
18178+2640 LEP 88 2010 3 241 39.8 9.61 17.09 M5V V 181749.80+264016.7

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