18181-1215 SS    7AI

 
 
18h 18m 05.90s -12 14' 33.3" P.A. 299 sep 45.8 mag 7.45,13.70 Sp O8Ia dist. 662.25 pc (2160.26 l.y.)
 
 
Coord 2000
18181-1215
Discov num
SS    7
Comp
AI
Coord arcsec 2000
18 18 05.90 -12 14 33.3
Date first
1953
Date last
2000
Obs
3
Pa first
299
Pa last
299
P.A. Now (θ)
299°
Sep first
43.8
Sep last
45.8
Sep. Now (ρ)
45.8"
Mag pri
7.45
Mag sec
13.70
delta mag (ΔM)
6.25
Spectral class
O8Ia (blue)
Pri motion ra
-000
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18181-1215 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161292 18181-1215 DBK 1 Aa,Ab 2008 2012 5 336 0.0 7.45 Y
Show MY Ser 161292 18181-1215 TRN 27 AB 2001 2012 3 40 4.8 7.45 16.00 8.55
Show 161292 18181-1215 SS 7 AC 1953 2000 3 191 14.7 7.45 14.30 6.85
Show 161292 18181-1215 SS 7 AD 1906 2000 7 260 18.1 7.45 12.90 5.45
Show 161292 18181-1215 SS 7 AE 1906 2000 6 217 18.2 7.45 13.00 5.55
Show 161292 18181-1215 SS 7 AF 1906 2000 10 16 30.1 7.45 10.80 3.35
Show 161292 18181-1215 SS 7 AG 1953 2000 4 9 39.3 7.45 15.50 8.05
Show 161292 18181-1215 SS 7 AH 1907 2000 6 268 40.8 7.45 9.80 2.35
Show 161292 18181-1215 SS 7 AI 1953 2000 3 299 45.8 7.45 13.70 6.25 <===
Show 161292 18181-1215 SS 7 AJ 1906 2000 4 258 45.3 7.45 11.42 3.97
Show 161292 18181-1215 SS 7 AK 1907 2000 4 262 48.6 7.45 10.51 3.06
Show 161292 18181-1215 SS 7 AL 1953 2000 4 348 51.7 7.45 14.50 7.05
Show 161292 18181-1215 SS 7 AM 1953 2000 4 254 64.4 7.45 15.30 7.85
Show 161292 18181-1215 SS 7 AN 1953 2000 4 279 71.0 7.45 15.10 7.65
Show 161292 18181-1215 SS 7 AO 1953 2000 4 305 72.0 7.45 15.90 8.45
Show 161292 18181-1215 SS 7 AP 1907 2000 6 286 72.5 7.45 10.40 2.95
Show 161292 18181-1215 SS 7 AQ 1907 2000 5 291 84.7 7.45 11.70 4.25
Show 161292 18181-1215 BRT2749 KJ 1906 2000 5 121 4.4 10.51 11.42 0.91
18-fold system
17 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
299.1
Precise sep
45.78
Var name
MY Ser
Constellation
Serpens
SAO
161292
HIP
89681
Tycho2
5685-04419-1
HD
167971
BD
BD-12 4980
Distance
662.25
Distance ly
2160.26
last precise pa
299.1
last precise sep
45.78
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18181-1215 SS 7 AI 2000 3 299 45.8 7.45 13.70 O8Ia N 181805.90-121433.3

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