21237+5518 A 1892 (HD 204000)
21h 23m 40.12s +55° 17' 38.7" P.A. 351.00 sep 0.8 mag 8.17,9.31 Sp A1V dist. 361.01 pc (1177.61 l.y.)
| Coord 2000 |
21237+5518 |
|
Discov num |
A 1892 |
|
Comp |
|
|
Coord arcsec 2000 |
21 23 40.12 +55 17 38.7 |
|
| Date first |
1908 |
|
Date last |
2016 |
|
Obs |
18 |
|
| Pa first |
347 |
|
Pa last |
350.9 |
|
P.A. Now (θ) |
350.9° |
|
| Sep first |
0.7 |
|
Sep last |
0.76 |
|
Sep. Now (ρ) |
0.76" |
|
| Mag pri |
8.17 |
|
Mag sec |
9.31 |
|
delta mag (ΔM) |
1.14 |
|
Spectral class |
A1V (white) |
|
| Pri motion ra |
-006 |
|
Sec motion ra |
-006 |
|
| Pri motion dec |
-019 |
|
Sec motion dec |
-019 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 204000 |
|
Constellation |
Cygnus |
|
SAO |
33383 |
|
HIP |
105630 |
|
| Tycho2 |
3970-01117-1 |
|
Gaia DR2 |
2176332427934992128 |
|
HD |
204000 |
|
GC |
29972 |
|
| BD |
BD+54 2530 |
|
Distance |
361.01 |
|
Distance ly |
1177.61 |
|
