17240-1142 BU 242 AB (HD 157499)
17h 24m 02.80s -11° 42' 06.9" P.A. 79.00 sep 1.2 mag 8.69,9.48 Sp A2 dist. 3846.15 pc (12546.14 l.y.)
Coord 2000 |
17240-1142 |
|
Discov num |
BU 242 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 24 02.80 -11 42 06.9 |
|
Date first |
1875 |
|
Date last |
2019 |
|
Obs |
29 |
|
Pa first |
69 |
|
Pa last |
79.4 |
|
P.A. Now (θ) |
79.4° |
|
Sep first |
1.0 |
|
Sep last |
1.203 |
|
Sep. Now (ρ) |
1.203" |
|
Mag pri |
8.69 |
|
Mag sec |
9.48 |
|
delta mag (ΔM) |
0.79 |
|
Spectral class |
A2 (white) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
+000 |
|
Pri motion dec |
-007 |
|
Sec motion dec |
-007 |
|
Notes |
|
|
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
Name |
HD 157499 |
|
Constellation |
Serpens |
|
SAO |
160518 |
|
HIP |
85151 |
|
Tycho2 |
5666-00050-1 |
|
Gaia DR2 |
4141883292802888832 |
|
HD |
157499 |
|
GC |
23521 |
|
BD |
BD-11 4367 |
|
Distance |
3846.15 |
|
Distance ly |
12546.14 |
|