20137+4050 DOO 13 (HD 228446)
20h 13m 44.60s +40° 50' 19.2" P.A. 258.00 sep 3.0 mag 9.94,10.39 Sp B2I: dist. 4166.67 pc (13591.68 l.y.)
| Coord 2000 |
20137+4050 |
|
Discov num |
DOO 13 |
|
Comp |
|
|
Coord arcsec 2000 |
20 13 44.60 +40 50 19.2 |
|
| Date first |
1900 |
|
Date last |
2018 |
|
Obs |
24 |
|
| Pa first |
258 |
|
Pa last |
258.2 |
|
P.A. Now (θ) |
258.2° |
|
| Sep first |
2.8 |
|
Sep last |
3.021 |
|
Sep. Now (ρ) |
3.021" |
|
| Mag pri |
9.94 |
|
Mag sec |
10.39 |
|
delta mag (ΔM) |
0.45 |
|
Spectral class |
B2I: (blue-white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
N
(See Notes) |
|
rPM=0.149 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 228446 |
|
Constellation |
Cygnus |
|
HIP |
99688 |
|
Tycho2 |
3155-01471-1 |
|
| Gaia DR2 |
2062582044472384512 |
|
HD |
228446 |
|
ADS |
13556 |
|
BD |
BD+40 4068 |
|
| Distance |
4166.67 |
|
Distance ly |
13591.68 |
|
