21098+3504 ES 2257 AB
21h 09m 47.89s +35° 04' 21.6" P.A. 268.00 sep 15.2 mag 11.29,11.46
| Coord 2000 |
21098+3504 |
|
Discov num |
ES 2257 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 09 47.89 +35 04 21.6 |
|
| Date first |
1926 |
|
Date last |
2015 |
|
Obs |
12 |
|
| Pa first |
261 |
|
Pa last |
267.6 |
|
P.A. Now (θ) |
267.6° |
|
| Sep first |
16.7 |
|
Sep last |
15.181 |
|
Sep. Now (ρ) |
15.181" |
|
| Mag pri |
11.29 |
|
Mag sec |
11.46 |
|
delta mag (ΔM) |
0.17 |
|
Spectral class |
|
|
| Pri motion ra |
-014 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-010 |
|
Sec motion dec |
+006 |
|
| Notes |
|
|
rPM=1.315
This double is not physical.
21098+3504 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 09 48 +35 04 22 |
ES 2257 AB |
2015 |
12 |
268 |
15.2 |
11.29 |
11.46 |
0.17 |
|
<=== |
| Show |
|
|
21 09 47 +35 04 21 |
ES 2257 BC |
2015 |
9 |
260 |
5.5 |
11.46 |
13.60 |
2.14 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2710-01424-1 |
|
Gaia DR2 |
1867262737326908160 |
|
