18491+1313 STF 2399 BC
18h 49m 08.33s +13° 12' 46.7" P.A. 18.00 sep 29.7 mag 9.48,11.10 Sp A2
| Coord 2000 |
18491+1313 |
|
Discov num |
STF2399 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 49 08.33 +13 12 46.7 |
|
| Date first |
1829 |
|
Date last |
2015 |
|
Obs |
23 |
|
| Pa first |
22 |
|
Pa last |
17.8 |
|
P.A. Now (θ) |
17.8° |
|
| Sep first |
31.6 |
|
Sep last |
29.719 |
|
Sep. Now (ρ) |
29.719" |
|
| Mag pri |
9.48 |
|
Mag sec |
11.10 |
|
delta mag (ΔM) |
1.62 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
-006 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-013 |
|
| Notes |
|
|
rPM=0.796
Nature of this double is uncertain.
18491+1313 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 174238 |
104131 |
18 49 07 +13 12 54 |
STF 2399 AB |
2015 |
31 |
118 |
15.8 |
8.83 |
9.48 |
0.65 |
|
|
| Show |
|
104131 |
18 49 07 +13 12 54 |
STF 2399 AC |
2015 |
23 |
48 |
31.2 |
8.83 |
11.10 |
2.27 |
|
|
| Show |
|
104133 |
18 49 08 +13 12 47 |
STF 2399 BC |
2015 |
23 |
18 |
29.7 |
9.48 |
11.10 |
1.62 |
|
<=== |
| Show |
|
104133 |
18 49 08 +13 12 47 |
STF 2399 BD |
2015 |
15 |
69 |
42.4 |
9.48 |
12.18 |
2.70 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
SAO |
104133 |
|
Tycho2 |
1038-00415-1 |
|
Gaia DR2 |
4505473027704956928 |
|
| HD |
229601 |
|
GC |
25790 |
|
