21377+5734 STF 2815 AB,C
21h 37m 40.93s +57° 33' 37.5" P.A. 81.00 sep 7.5 mag 8.65,10.52 Sp A0 dist. 446.43 pc (1456.25 l.y.)
| Coord 2000 |
21377+5734 |
|
Discov num |
STF2815 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
21 37 40.93 +57 33 37.5 |
|
| Date first |
1828 |
|
Date last |
2016 |
|
Obs |
28 |
|
| Pa first |
85 |
|
Pa last |
81 |
|
P.A. Now (θ) |
81° |
|
| Sep first |
8.0 |
|
Sep last |
7.501 |
|
Sep. Now (ρ) |
7.501" |
|
| Mag pri |
8.65 |
|
Mag sec |
10.52 |
|
delta mag (ΔM) |
1.87 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-013 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
rPM=0.844
This double is not physical.
21377+5734 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 206081 |
33601 |
21 37 41 +57 33 38 |
D 25 AB |
2016 |
19 |
164 |
1.0 |
8.65 |
10.04 |
1.39 |
|
|
| Show |
|
33601 |
21 37 41 +57 33 38 |
STF 2815 AB,C |
2016 |
28 |
81 |
7.5 |
8.65 |
10.52 |
1.87 |
|
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
SAO |
33601 |
|
HIP |
106774 |
|
Tycho2 |
3975-01826-1 |
|
| Gaia DR2 |
2178443215378624384 |
|
HD |
206081 |
|
BD |
BD+56 2610 |
|
Distance |
446.43 |
|
| Distance ly |
1456.25 |
|
