21514+5418 HLD 50 AC
21h 51m 23.75s +54° 17' 33.6" P.A. 334.00 sep 7.6 mag 9.21,14.00 Sp A5 dist. 578.03 pc (1885.53 l.y.)
| Coord 2000 |
21514+5418 |
|
Discov num |
HLD 50 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 51 23.75 +54 17 33.6 |
|
| Date first |
1888 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
340 |
|
Pa last |
334.2 |
|
P.A. Now (θ) |
334.2° |
|
| Sep first |
5.0 |
|
Sep last |
7.625 |
|
Sep. Now (ρ) |
7.625" |
|
| Mag pri |
9.21 |
|
Mag sec |
14.00 |
|
delta mag (ΔM) |
4.79 |
|
Spectral class |
A5 (white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
|
|
| Pri motion dec |
+000 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21514+5418 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 207975 |
33808 |
21 51 24 +54 17 34 |
HLD 50 AB |
2001 |
12 |
175 |
1.6 |
9.21 |
10.96 |
1.75 |
|
|
| Show |
|
33808 |
21 51 24 +54 17 34 |
HLD 50 AC |
2015 |
7 |
334 |
7.6 |
9.21 |
14.00 |
4.79 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
33808 |
|
HIP |
107874 |
|
Tycho2 |
3968-03756-1 |
|
| Gaia DR2 |
2173877188416248832 |
|
HD |
207975 |
|
BD |
BD+53 2719 |
|
Distance |
578.03 |
|
| Distance ly |
1885.53 |
|
