20215+3035 BU 1259 BC
20h 21m 19.55s +30° 36' 03.5" P.A. 356.00 sep 10.3 mag 8.54,13.50 Sp A3 dist. 226.76 pc (739.69 l.y.)
| Coord 2000 |
20215+3035 |
|
Discov num |
BU 1259 |
|
Comp |
BC |
|
Coord arcsec 2000 |
20 21 19.55 +30 36 03.5 |
|
| Date first |
1916 |
|
Date last |
2012 |
|
Obs |
9 |
|
| Pa first |
9 |
|
Pa last |
356 |
|
P.A. Now (θ) |
356° |
|
| Sep first |
16.0 |
|
Sep last |
10.268 |
|
Sep. Now (ρ) |
10.268" |
|
| Mag pri |
8.54 |
|
Mag sec |
13.50 |
|
delta mag (ΔM) |
4.96 |
|
Spectral class |
A3 (white) |
|
| Pri motion ra |
+008 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
+010 |
|
Sec motion dec |
+002 |
|
| Notes |
|
|
rPM=1.126
This double is not physical.
20215+3035 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 193857 |
69888 |
20 21 30 +30 35 25 |
ARY 4 AB |
2015 |
17 |
287 |
134.9 |
6.78 |
8.54 |
1.76 |
|
|
| Show |
|
69879 |
20 21 20 +30 36 04 |
BU 1259 Ba,Bb |
1991 |
26 |
191 |
0.2 |
9.06 |
9.60 |
0.54 |
|
|
| Show |
|
69879 |
20 21 20 +30 36 04 |
BU 1259 BC |
2012 |
9 |
356 |
10.3 |
8.54 |
13.50 |
4.96 |
|
<=== |
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
69879 |
|
HIP |
100369 |
|
Tycho2 |
2672-01711-1 |
|
| Gaia DR2 |
1861588054747817344 |
|
HD |
334154 |
|
BD |
BD+30 3994 |
|
Distance |
226.76 |
|
| Distance ly |
739.69 |
|
