18181-1215 TRN  27AB (MY Ser)

 
 
18h 18m 05.90s -12 14' 33.3" P.A. 40 sep 4.8 mag 7.45,16.00 Sp O8Ia dist. 662.25 pc (2160.26 l.y.)
 
 
Coord 2000
18181-1215
Discov num
TRN  27
Comp
AB
Coord arcsec 2000
18 18 05.90 -12 14 33.3
Date first
2001
Date last
2012
Obs
3
Pa first
39
Pa last
40
P.A. Now (θ)
40°
Sep first
4.7
Sep last
4.8
Sep. Now (ρ)
4.8"
Mag pri
7.45
Mag sec
16.00
delta mag (ΔM)
8.55
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 2016 15 281 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 2017 7 269 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
40.4
Precise sep
4.84
Var name
MY Ser
Cdsa2 id
TRN 27 AB
Constellation
Serpens
SAO
161292
HIP
89681
Tycho2
5685-04419-1
HD
167971
BD
BD-12 4980
Ra deg
18.30163888888889
De deg
-12.242583333333332
Distance
662.25
Distance ly
2160.26
last precise pa
40.4
last precise sep
4.84
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18181-1215 TRN 27 AB 2001 2 80 4.7 7.45 16.00 M7+M6 N D 181805.90-121433.3
18181-1215 TRN 27 AB 2012 3 40 4.8 7.45 16.00 O8Ia N 181805.90-121433.3

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