20007+3232 ES 2430 AB (HD 331657)
20h 00m 43.23s +32° 31' 34.7" P.A. 265.00 sep 6.5 mag 9.74,12.20 Sp B9
| Coord 2000 |
20007+3232 |
|
Discov num |
ES 2430 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 00 43.23 +32 31 34.7 |
|
| Date first |
1930 |
|
Date last |
2019 |
|
Obs |
9 |
|
| Pa first |
271 |
|
Pa last |
265.2 |
|
P.A. Now (θ) |
265.2° |
|
| Sep first |
5.6 |
|
Sep last |
6.54 |
|
Sep. Now (ρ) |
6.54" |
|
| Mag pri |
9.74 |
|
Mag sec |
12.20 |
|
delta mag (ΔM) |
2.46 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
|
|
| Pri motion dec |
-003 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20007+3232 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 331657 |
|
20 00 43 +32 31 35 |
ES 2430 AB |
2019 |
9 |
265 |
6.5 |
9.74 |
12.20 |
2.46 |
|
<=== |
| Show |
|
|
20 00 43 +32 31 35 |
ES 2430 AC |
2019 |
6 |
39 |
17.1 |
9.74 |
12.00 |
2.26 |
|
|
| Show |
|
|
20 00 44 +32 31 48 |
DAM 313 CD |
2018 |
4 |
298 |
3.8 |
12.00 |
12.00 |
0.00 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 331657 |
|
Constellation |
Cygnus |
|
Tycho2 |
2674-03573-1 |
|
Gaia DR2 |
2034106720557603840 |
|
| HD |
331657 |
|