21077+4851 ES 818 AB
21h 07m 40.09s +48° 51' 18.7" P.A. 39.00 sep 48.6 mag 7.83,12.72 Sp G5III dist. 221.73 pc (723.28 l.y.)
| Coord 2000 |
21077+4851 |
|
Discov num |
ES 818 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 07 40.09 +48 51 18.7 |
|
| Date first |
1903 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
43 |
|
Pa last |
39.4 |
|
P.A. Now (θ) |
39.4° |
|
| Sep first |
42.8 |
|
Sep last |
48.649 |
|
Sep. Now (ρ) |
48.649" |
|
| Mag pri |
7.83 |
|
Mag sec |
12.72 |
|
delta mag (ΔM) |
4.89 |
|
Spectral class |
G5III (yellow) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
-036 |
|
Sec motion dec |
+013 |
|
| Notes |
|
|
rPM=1.381
This double is not physical.
21077+4851 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
50479 |
21 07 40 +48 51 19 |
ES 818 AB |
2015 |
5 |
39 |
48.6 |
7.83 |
12.72 |
4.89 |
|
<=== |
| Show |
|
|
21 07 43 +48 51 55 |
ES 818 BC |
2015 |
2 |
137 |
2.2 |
11.00 |
12.00 |
1.00 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V1720 Cyg |
|
Constellation |
Cygnus |
|
SAO |
50479 |
|
HIP |
104290 |
|
| Tycho2 |
3596-01240-1 |
|
Gaia DR2 |
2165582988083680640 |
|
HD |
201416 |
|
BD |
BD+48 3289 |
|
| Distance |
221.73 |
|
Distance ly |
723.28 |
|
