18493+3301 ES 2287 AB (HD 173755)
18h 49m 18.62s +33° 00' 57.5" P.A. 292.00 sep 3.8 mag 10.90,12.30
| Coord 2000 |
18493+3301 |
|
Discov num |
ES 2287 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 49 18.62 +33 00 57.5 |
|
| Date first |
1927 |
|
Date last |
2019 |
|
Obs |
11 |
|
| Pa first |
287 |
|
Pa last |
292 |
|
P.A. Now (θ) |
292° |
|
| Sep first |
2.9 |
|
Sep last |
3.82 |
|
Sep. Now (ρ) |
3.82" |
|
| Mag pri |
10.90 |
|
Mag sec |
12.30 |
|
delta mag (ΔM) |
1.4 |
|
Spectral class |
|
|
| Pri motion ra |
+037 |
|
Sec motion ra |
|
|
| Pri motion dec |
-017 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18493+3301 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 49 19 +33 00 58 |
ES 2287 Aa,Ab |
2016 |
1 |
217 |
0.3 |
10.90 |
11.00 |
0.10 |
|
|
| Show |
HD 173755 |
|
18 49 19 +33 00 58 |
ES 2287 AB |
2019 |
11 |
292 |
3.8 |
10.90 |
12.30 |
1.40 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 173755 |
|
Constellation |
Lyra |
|
Tycho2 |
8381-00268-1 |
|
HD |
173755 |
|
| DM |
CD-4812735 |
|
