18466+3853 ES 2021 BC
18h 46m 35.56s +38° 52' 18.5" P.A. 298.00 sep 3.8 mag 12.20,13.40
| Coord 2000 |
18466+3853 |
|
Discov num |
ES 2021 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 46 35.56 +38 52 18.5 |
|
| Date first |
1923 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
307 |
|
Pa last |
297.5 |
|
P.A. Now (θ) |
297.5° |
|
| Sep first |
3.6 |
|
Sep last |
3.791 |
|
Sep. Now (ρ) |
3.791" |
|
| Mag pri |
12.20 |
|
Mag sec |
13.40 |
|
delta mag (ΔM) |
1.2 |
|
Spectral class |
|
|
| Pri motion ra |
+013 |
|
Sec motion ra |
|
|
| Pri motion dec |
-009 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18466+3853 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 46 37 +38 52 24 |
ES 2021 AB |
2015 |
7 |
254 |
20.2 |
11.26 |
12.20 |
0.94 |
|
|
| Show |
|
|
18 46 37 +38 52 24 |
ES 2021 AC |
2015 |
3 |
261 |
23.1 |
11.26 |
13.40 |
2.14 |
|
|
| Show |
|
|
18 46 36 +38 52 18 |
ES 2021 BC |
2015 |
5 |
298 |
3.8 |
12.20 |
13.40 |
1.20 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
Gaia DR2 |
2097370313187679104 |
|
