21152+3251 HEI 284 AB
21h 15m 14.84s +32° 50' 08.7" P.A. 26.00 sep 4.3 mag 11.30,11.90
| Coord 2000 |
21152+3251 |
|
Discov num |
HEI 284 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 15 14.84 +32 50 08.7 |
|
| Date first |
1982 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
28 |
|
Pa last |
26 |
|
P.A. Now (θ) |
26° |
|
| Sep first |
3.4 |
|
Sep last |
4.33 |
|
Sep. Now (ρ) |
4.33" |
|
| Mag pri |
11.30 |
|
Mag sec |
11.90 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
|
|
| Pri motion ra |
+083 |
|
Sec motion ra |
+009 |
|
| Pri motion dec |
+081 |
|
Sec motion dec |
+019 |
|
| Notes |
|
|
rPM=0.832
This double is not physical.
21152+3251 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 15 15 +32 50 09 |
HEI 284 AB |
2015 |
5 |
26 |
4.3 |
11.30 |
11.90 |
0.60 |
|
<=== |
| Show |
|
|
21 15 15 +32 50 09 |
HEI 284 AC |
2015 |
5 |
224 |
8.7 |
11.30 |
11.50 |
0.20 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1854695422500152448 |
|
