18245-2947 B 2446 AB
18h 24m 29.77s -29° 46' 49.3" P.A. 223.00 sep 9.3 mag 8.19,14.10 Sp A7V
| Coord 2000 |
18245-2947 |
|
Discov num |
B 2446 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 24 29.77 -29 46 49.3 |
|
| Date first |
1930 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
225 |
|
Pa last |
223.4 |
|
P.A. Now (θ) |
223.4° |
|
| Sep first |
7.0 |
|
Sep last |
9.25 |
|
Sep. Now (ρ) |
9.25" |
|
| Mag pri |
8.19 |
|
Mag sec |
14.10 |
|
delta mag (ΔM) |
5.91 |
|
Spectral class |
A7V (white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-040 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18245-2947 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 169142 |
186777 |
18 24 30 -29 46 49 |
BIL 7 Aa,Ab |
2013 |
1 |
0 |
0.1 |
5.60 |
12.10 |
6.50 |
|
|
| Show |
|
186777 |
18 24 30 -29 46 49 |
B 2446 AB |
2015 |
4 |
223 |
9.3 |
8.19 |
14.10 |
5.91 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
SAO |
186777 |
|
Tycho2 |
6856-00876-1 |
|
Gaia DR2 |
4048015133392824064 |
|
| HD |
169142 |
|
