18179-1750 ARA 275 AB (HD 167861)
18h 17m 54.51s -17° 49' 45.2" P.A. 349.00 sep 10.4 mag 9.08,12.50 Sp M1
| Coord 2000 |
18179-1750 |
|
Discov num |
ARA 275 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 17 54.51 -17 49 45.2 |
|
| Date first |
1916 |
|
Date last |
1999 |
|
Obs |
2 |
|
| Pa first |
350 |
|
Pa last |
349 |
|
P.A. Now (θ) |
349° |
|
| Sep first |
10.2 |
|
Sep last |
10.371 |
|
Sep. Now (ρ) |
10.371" |
|
| Mag pri |
9.08 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
3.42 |
|
Spectral class |
M1 (red) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
-005 |
|
| Pri motion dec |
+001 |
|
Sec motion dec |
+005 |
|
| Notes |
|
|
rPM=0.906
This double is not physical.
18179-1750 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
161282 |
18 17 55 -17 49 45 |
TDT 781 Aa,Ab |
1991 |
1 |
130 |
0.4 |
9.48 |
10.12 |
0.64 |
|
|
| Show |
HD 167861 |
161282 |
18 17 55 -17 49 45 |
ARA 275 AB |
1999 |
2 |
349 |
10.4 |
9.08 |
12.50 |
3.42 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 167861 |
|
Constellation |
Sagittarius |
|
SAO |
161282 |
|
Tycho2 |
6269-00352-1 |
|
| Gaia DR2 |
4097162925076717568 |
|
HD |
167861 |
|
DM |
BD-17 5117 |
|
