21026+2141 BU 69 AC
21h 02m 36.08s +21° 41' 28.2" P.A. 241.00 sep 74.6 mag 8.35,8.02 Sp F0 dist. 73.64 pc (240.21 l.y.)
| Coord 2000 |
21026+2141 |
|
Discov num |
BU 69 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 02 36.08 +21 41 28.2 |
|
| Date first |
1875 |
|
Date last |
2017 |
|
Obs |
32 |
|
| Pa first |
238 |
|
Pa last |
241 |
|
P.A. Now (θ) |
241° |
|
| Sep first |
78.4 |
|
Sep last |
74.6 |
|
Sep. Now (ρ) |
74.6" |
|
| Mag pri |
8.35 |
|
Mag sec |
8.02 |
|
delta mag (ΔM) |
0.33 |
|
Spectral class |
F0 (yellow-white) |
|
| Pri motion ra |
+040 |
|
Sec motion ra |
+052 |
|
| Pri motion dec |
-034 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
rPM=0.705
Nature of this double is uncertain.
21026+2141 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 200392 |
89397 |
21 02 36 +21 41 28 |
BU 69 AB |
2017 |
62 |
6 |
0.4 |
8.35 |
9.80 |
1.45 |
Y |
|
| Show |
|
89397 |
21 02 36 +21 41 28 |
BU 69 AC |
2017 |
32 |
241 |
74.6 |
8.35 |
8.02 |
0.33 |
|
<=== |
| Show |
|
89395 |
21 02 31 +21 40 51 |
HO 599 CD |
2015 |
16 |
174 |
18.0 |
8.02 |
13.53 |
5.51 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vulpecula |
|
SAO |
89397 |
|
HIP |
103852 |
|
Tycho2 |
1660-00673-1 |
|
| Gaia DR2 |
1838333516943212032 |
|
HD |
200392 |
|
DM |
BD+21 4444 |
|
BD |
BD+21 4445 |
|
| Distance |
73.64 |
|
Distance ly |
240.21 |
|
