18012-4550 I 1112 AB
18h 01m 12.50s -45° 49' 33.9" P.A. 231.00 sep 21.4 mag 7.78,12.73 Sp G6/8III
Coord 2000 |
18012-4550 |
|
Discov num |
I 1112 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 01 12.50 -45 49 33.9 |
|
Date first |
1905 |
|
Date last |
2015 |
|
Obs |
7 |
|
Pa first |
233 |
|
Pa last |
230.9 |
|
P.A. Now (θ) |
230.9° |
|
Sep first |
19.5 |
|
Sep last |
21.438 |
|
Sep. Now (ρ) |
21.438" |
|
Mag pri |
7.78 |
|
Mag sec |
12.73 |
|
delta mag (ΔM) |
4.95 |
|
Spectral class |
G6/8III (yellow) |
|
Pri motion ra |
-006 |
|
Sec motion ra |
-022 |
|
Pri motion dec |
-020 |
|
Sec motion dec |
-032 |
|
Notes |
|
|
rPM=0.515
Nature of this double is uncertain.
18012-4550 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
228625 |
18 01 12 -45 49 34 |
I 1112 AB |
2015 |
7 |
231 |
21.4 |
7.78 |
12.73 |
4.95 |
|
<=== |
Show |
HD 163986 |
228625 |
18 01 12 -45 49 34 |
I 1112 AC |
2015 |
6 |
56 |
20.4 |
7.78 |
11.24 |
3.46 |
|
|
Show |
|
228625 |
18 01 12 -45 49 34 |
HJ 5005 AD |
2015 |
11 |
26 |
26.7 |
7.78 |
9.93 |
2.15 |
|
|
Show |
|
228625 |
18 01 12 -45 49 34 |
HJ 5005 AE |
2015 |
7 |
75 |
32.0 |
7.78 |
13.50 |
5.72 |
|
|
Show |
|
|
18 01 14 -45 49 23 |
I 1112 CD |
2015 |
6 |
337 |
13.7 |
11.24 |
9.93 |
1.31 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ara |
|
SAO |
228625 |
|
Tycho2 |
8357-03850-1 |
|
Gaia DR2 |
6720575506941282560 |
|
HD |
163986 |
|
GC |
24496 |
|