20434+4501 ES 668 AC
20h 43m 24.38s +45° 00' 38.7" P.A. 269.00 sep 23.4 mag 8.56,12.80 Sp K0
| Coord 2000 |
20434+4501 |
|
Discov num |
ES 668 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 43 24.38 +45 00 38.7 |
|
| Date first |
1908 |
|
Date last |
2015 |
|
Obs |
11 |
|
| Pa first |
270 |
|
Pa last |
268.9 |
|
P.A. Now (θ) |
268.9° |
|
| Sep first |
23.3 |
|
Sep last |
23.394 |
|
Sep. Now (ρ) |
23.394" |
|
| Mag pri |
8.56 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
4.24 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-012 |
|
Sec motion dec |
-022 |
|
| Notes |
|
|
rPM=0.49
Nature of this double is uncertain.
20434+4501 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 43 24 +45 00 39 |
ES 668 AB |
2015 |
4 |
68 |
5.2 |
8.56 |
14.20 |
5.64 |
|
|
| Show |
|
|
20 43 24 +45 00 39 |
ES 668 AC |
2015 |
11 |
269 |
23.4 |
8.56 |
12.80 |
4.24 |
|
<=== |
| Show |
|
|
20 43 24 +45 00 39 |
FYM 322 AD |
2015 |
8 |
200 |
18.7 |
8.56 |
15.10 |
6.54 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3574-01823-1 |
|
Gaia DR2 |
2070198670749780608 |
|
