20318+4933 BU 1136 (HD 195853)
20h 31m 46.51s +49° 32' 32.5" P.A. 215.00 sep 0.7 mag 7.75,9.19 Sp B9 dist. 197.63 pc (644.67 l.y.)
| Coord 2000 |
20318+4933 |
|
Discov num |
BU 1136 |
|
Comp |
|
|
Coord arcsec 2000 |
20 31 46.51 +49 32 32.5 |
|
| Date first |
1889 |
|
Date last |
2016 |
|
Obs |
17 |
|
| Pa first |
207 |
|
Pa last |
215 |
|
P.A. Now (θ) |
215° |
|
| Sep first |
0.4 |
|
Sep last |
0.66 |
|
Sep. Now (ρ) |
0.66" |
|
| Mag pri |
7.75 |
|
Mag sec |
9.19 |
|
delta mag (ΔM) |
1.44 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
+008 |
|
Sec motion dec |
+008 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 195853 |
|
Constellation |
Cygnus |
|
SAO |
49754 |
|
HIP |
101284 |
|
| Tycho2 |
3581-01451-1 |
|
Gaia DR2 |
2180065583451898880 |
|
HD |
195853 |
|
BD |
BD+49 3305 |
|
| Distance |
197.63 |
|
Distance ly |
644.67 |
|
