18138-2104 HJ 2822AD

 
 
18h 13m 45.81s -21 03' 31.8" P.A. 312 sep 48.2 mag 3.85,9.96 Sp B8Iape dist. 11111.11 pc (36244.44 l.y.)
 
 
Coord 2000
18138-2104
Discov num
HJ 2822
Comp
AD
Coord arcsec 2000
18 13 45.81 -21 03 31.8
Date first
1830
Date last
2013
Obs
25
Pa first
314
Pa last
312
P.A. Now (θ)
312°
Sep first
45.0
Sep last
48.2
Sep. Now (ρ)
48.2"
Mag pri
3.85
Mag sec
9.96
delta mag (ΔM)
6.11
Spectral class
B8Iape (blue-white)
Pri motion ra
+000
Sec motion ra
+001
Pri motion dec
-001
Sec motion dec
-000
Notes
N (See Notes)
rPM=1.414
This double is not physical.
 
 
18138-2104 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Mu Sgr 186497 18138-2104 H 5 7 AB 1830 2013 20 258 16.9 3.85 10.48 6.63
Show 186497 18138-2104 BU 292 AC 1878 2008 10 119 25.5 3.85 12.80 8.95
Show 186497 18138-2104 HJ 2822 AD 1830 2013 25 312 48.2 3.85 9.96 6.11 <===
Show 186497 18138-2104 HJ 2822 AE 1830 2013 20 114 50.2 3.85 9.22 5.37
Show 186497 18138-2104 SLV 7 BD 1830 1998 12 331 40.9 10.48 9.96 0.52
Show 186497 18138-2104 SLV 7 BE 1879 1998 10 106 64.4 10.48 9.22 1.26
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
312.1
Precise sep
48.17
Constellation
Sagittarius
SAO
186497
HIP
89341
Tycho2
6276-03093-1
HD
166937
HR
6812
GC
24856
BD
BD-21 4908
Bayer
Mu Sagittarii
Bayer name
Mu Sgr
Flamsteed
13 Sagittarii
Flamsteed name
13 Sgr
Distance
11111.11
Distance ly
36244.44
last precise pa
312.1
last precise sep
48.17
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18138-2104 HJ 2822 AD 2007 20 312 48.2 3.85 9.96 B8Iape D 181345.81-210331.8
18138-2104 HJ 2822 AD 2009 21 314 51.0 3.85 9.96 B8Iape N D 181345.81-210331.8
18138-2104 HJ 2822 AD 2013 25 312 48.2 3.85 9.96 B8Iape N D 181345.81-210331.8

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