17240-1142 BU 242 AC
17h 24m 02.80s -11° 42' 06.9" P.A. 64.00 sep 9.1 mag 8.71,11.12 Sp A2
| Coord 2000 |
17240-1142 |
|
Discov num |
BU 242 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 24 02.80 -11 42 06.9 |
|
| Date first |
1876 |
|
Date last |
2017 |
|
Obs |
18 |
|
| Pa first |
63 |
|
Pa last |
64.1 |
|
P.A. Now (θ) |
64.1° |
|
| Sep first |
8.9 |
|
Sep last |
9.097 |
|
Sep. Now (ρ) |
9.097" |
|
| Mag pri |
8.71 |
|
Mag sec |
11.12 |
|
delta mag (ΔM) |
2.41 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-008 |
|
Sec motion dec |
-011 |
|
| Notes |
|
|
rPM=0.384
Nature of this double is uncertain.
17240-1142 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 157499 |
160518 |
17 24 03 -11 42 07 |
BU 242 AB |
2019 |
29 |
79 |
1.2 |
8.69 |
9.48 |
0.79 |
|
|
| Show |
|
160518 |
17 24 03 -11 42 07 |
BU 242 AC |
2017 |
18 |
64 |
9.1 |
8.71 |
11.12 |
2.41 |
|
<=== |
| Show |
|
160518 |
17 24 03 -11 42 07 |
BU 242 AD |
2017 |
19 |
61 |
48.3 |
8.71 |
10.53 |
1.82 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Serpens |
|
SAO |
160518 |
|
Tycho2 |
5666-00050-1 |
|
Gaia DR2 |
4141883292802888832 |
|
