18238+5139 ES 187 AC
18h 23m 45.03s +51° 38' 55.8" P.A. 124.00 sep 91.3 mag 9.32,10.33 Sp G5
Coord 2000 |
18238+5139 |
|
Discov num |
ES 187 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 23 45.03 +51 38 55.8 |
|
Date first |
1864 |
|
Date last |
2016 |
|
Obs |
19 |
|
Pa first |
115 |
|
Pa last |
124.1 |
|
P.A. Now (θ) |
124.1° |
|
Sep first |
82.5 |
|
Sep last |
91.29 |
|
Sep. Now (ρ) |
91.29" |
|
Mag pri |
9.32 |
|
Mag sec |
10.33 |
|
delta mag (ΔM) |
1.01 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
+057 |
|
Sec motion ra |
+023 |
|
Pri motion dec |
+147 |
|
Sec motion dec |
+000 |
|
Notes |
N
(See Notes) |
|
rPM=0.957
This double is not physical.
18238+5139 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 169816 |
30942 |
18 23 45 +51 38 56 |
ES 187 AB |
2018 |
31 |
206 |
2.5 |
9.32 |
9.43 |
0.11 |
|
|
Show |
|
30942 |
18 23 45 +51 38 56 |
ES 187 AC |
2016 |
19 |
124 |
91.3 |
9.32 |
10.33 |
1.01 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Draco |
|
SAO |
30942 |
|
Tycho2 |
3538-02027-1 |
|
Gaia DR2 |
2124268868729815936 |
|