21426+4226 BU 1505 BC
21h 42m 32.99s +42° 26' 16.6" P.A. 177.00 sep 21.4 mag 10.56,12.68 dist. 263.85 pc (860.68 l.y.)
Coord 2000 |
21426+4226 |
|
Discov num |
BU 1505 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 42 32.99 +42 26 16.6 |
|
Date first |
1998 |
|
Date last |
2017 |
|
Obs |
9 |
|
Pa first |
176 |
|
Pa last |
177.2 |
|
P.A. Now (θ) |
177.2° |
|
Sep first |
21.3 |
|
Sep last |
21.4 |
|
Sep. Now (ρ) |
21.4" |
|
Mag pri |
10.56 |
|
Mag sec |
12.68 |
|
delta mag (ΔM) |
2.12 |
|
Spectral class |
|
|
Pri motion ra |
+003 |
|
Sec motion ra |
-009 |
|
Pri motion dec |
-014 |
|
Sec motion dec |
-007 |
|
Notes |
|
|
rPM=0.97
This double is not physical.
21426+4226 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 206673 |
51214 |
21 42 34 +42 26 26 |
STF 2820 AB |
2017 |
21 |
230 |
16.0 |
7.48 |
10.56 |
3.08 |
|
|
Show |
|
51214 |
21 42 34 +42 26 26 |
BU 1505 AC |
2017 |
10 |
200 |
33.6 |
7.48 |
12.68 |
5.20 |
|
|
Show |
|
|
21 42 33 +42 26 17 |
BU 1505 BC |
2017 |
9 |
177 |
21.4 |
10.56 |
12.68 |
2.12 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
HIP |
107174 |
|
Gaia DR2 |
1966662264967423872 |
|
Distance |
263.85 |
|
Distance ly |
860.68 |
|