18557+1254 COG 1 AC
18h 55m 43.67s +12° 54' 30.1" P.A. 53.00 sep 38.6 mag 9.28,10.26 Sp A5V dist. 763.36 pc (2490.08 l.y.)
| Coord 2000 |
18557+1254 |
|
Discov num |
COG 1 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 55 43.67 +12 54 30.1 |
|
| Date first |
1893 |
|
Date last |
2015 |
|
Obs |
16 |
|
| Pa first |
55 |
|
Pa last |
52.9 |
|
P.A. Now (θ) |
52.9° |
|
| Sep first |
38.9 |
|
Sep last |
38.55 |
|
Sep. Now (ρ) |
38.55" |
|
| Mag pri |
9.28 |
|
Mag sec |
10.26 |
|
delta mag (ΔM) |
0.98 |
|
Spectral class |
A5V (white) |
|
| Pri motion ra |
+009 |
|
Sec motion ra |
+017 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-012 |
|
| Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
rPM=0.511
This double is not physical.
18557+1254 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 230093 |
104265 |
18 55 44 +12 54 30 |
COG 1 AB |
2015 |
14 |
284 |
26.2 |
9.28 |
11.92 |
2.64 |
|
|
| Show |
|
104265 |
18 55 44 +12 54 30 |
COG 1 AC |
2015 |
16 |
53 |
38.6 |
9.28 |
10.26 |
0.98 |
|
<=== |
| Show |
|
104265 |
18 55 44 +12 54 30 |
ABH 107 AE |
2015 |
10 |
58 |
107.5 |
9.28 |
12.20 |
2.92 |
|
|
| Show |
|
104265 |
18 55 44 +12 54 30 |
ABH 107 AF |
2015 |
12 |
107 |
122.5 |
9.28 |
11.23 |
1.95 |
|
|
| Show |
|
104265 |
18 55 44 +12 54 30 |
ABH 107 AG |
2015 |
10 |
251 |
97.8 |
9.28 |
13.59 |
4.31 |
|
|
| Show |
|
|
18 55 46 +12 54 53 |
COG 1 CD |
2015 |
16 |
316 |
3.4 |
10.26 |
11.96 |
1.70 |
|
|
Septuple system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
SAO |
104265 |
|
HIP |
92898 |
|
Tycho2 |
1047-01718-1 |
|
| Gaia DR2 |
4505977871027974528 |
|
HD |
230093 |
|
DM |
BD+12 3723 |
|
BD |
BD+12 3722 |
|
| Distance |
763.36 |
|
Distance ly |
2490.08 |
|
