20043-4724 I 661 (HD 189857)
20h 04m 15.57s -47° 23' 45.3" P.A. 39.00 sep 0.6 mag 10.19,10.22 Sp F8V dist. 174.52 pc (569.28 l.y.)
| Coord 2000 |
20043-4724 |
|
Discov num |
I 661 |
|
Comp |
|
|
Coord arcsec 2000 |
20 04 15.57 -47 23 45.3 |
|
| Date first |
1909 |
|
Date last |
1991 |
|
Obs |
9 |
|
| Pa first |
40 |
|
Pa last |
39.2 |
|
P.A. Now (θ) |
39.2° |
|
| Sep first |
0.5 |
|
Sep last |
0.56 |
|
Sep. Now (ρ) |
0.56" |
|
| Mag pri |
10.19 |
|
Mag sec |
10.22 |
|
delta mag (ΔM) |
0.03 |
|
Spectral class |
F8V (yellow-white) |
|
| Pri motion ra |
+025 |
|
Sec motion ra |
+025 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 189857 |
|
Constellation |
Telescopium |
|
SAO |
230021 |
|
HIP |
98837 |
|
| Tycho2 |
8396-02262-1 |
|
Gaia DR2 |
6670871598452487168 |
|
HD |
189857 |
|
CD |
CD-4713226 |
|
| CP |
CP-47 9424 |
|
Distance |
174.52 |
|
Distance ly |
569.28 |
|
