20045+4814 CHR 91 (HD 190781)
20h 04m 28.79s +48° 13' 46.8" P.A. 213.00 sep 0.4 mag 6.21,9.71 Sp A2IV dist. 183.49 pc (598.54 l.y.)
| Coord 2000 |
20045+4814 |
|
Discov num |
CHR 91 |
|
Comp |
|
|
Coord arcsec 2000 |
20 04 28.79 +48 13 46.8 |
|
| Date first |
1985 |
|
Date last |
2010 |
|
Obs |
16 |
|
| Pa first |
204 |
|
Pa last |
213.2 |
|
P.A. Now (θ) |
213.2° |
|
| Sep first |
0.4 |
|
Sep last |
0.414 |
|
Sep. Now (ρ) |
0.414" |
|
| Mag pri |
6.21 |
|
Mag sec |
9.71 |
|
delta mag (ΔM) |
3.5 |
|
Spectral class |
A2IV (white) |
|
| Pri motion ra |
+011 |
|
Sec motion ra |
|
|
| Pri motion dec |
+004 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 190781 |
|
Constellation |
Cygnus |
|
SAO |
49152 |
|
HIP |
98858 |
|
| Tycho2 |
3563-02451-1 |
|
Gaia DR2 |
2085956970179064576 |
|
HD |
190781 |
|
HR |
7684 |
|
| GC |
27869 |
|
BD |
BD+47 3004 |
|
FK5 |
3610 |
|
Distance |
183.49 |
|
| Distance ly |
598.54 |
|