21517+1918 BU 1506 AC
21h 51m 40.18s +19° 18' 25.0" P.A. 116.00 sep 29.7 mag 6.93,12.60 Sp F5IV dist. 91.91 pc (299.81 l.y.)
| Coord 2000 |
21517+1918 |
|
Discov num |
BU 1506 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 51 40.18 +19 18 25.0 |
|
| Date first |
1908 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
121 |
|
Pa last |
116.3 |
|
P.A. Now (θ) |
116.3° |
|
| Sep first |
26.1 |
|
Sep last |
29.725 |
|
Sep. Now (ρ) |
29.725" |
|
| Mag pri |
6.93 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
5.67 |
|
Spectral class |
F5IV (yellow-white) |
|
| Pri motion ra |
-035 |
|
Sec motion ra |
+011 |
|
| Pri motion dec |
-008 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
rPM=1.296
This double is not physical.
21517+1918 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 207859 |
107450 |
21 51 40 +19 18 25 |
STF 2834 AB |
2016 |
30 |
298 |
4.3 |
6.93 |
9.89 |
2.96 |
|
|
| Show |
|
107450 |
21 51 40 +19 18 25 |
BU 1506 AC |
2015 |
5 |
116 |
29.7 |
6.93 |
12.60 |
5.67 |
|
<=== |
| Show |
|
|
21 51 40 +19 18 26 |
BU 1506 BC |
2001 |
4 |
118 |
29.9 |
9.89 |
12.60 |
2.71 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
SAO |
107450 |
|
HIP |
107896 |
|
Tycho2 |
1674-00274-1 |
|
| Gaia DR2 |
1780263776689404032 |
|
HD |
207859 |
|
BD |
BD+18 4874 |
|
Distance |
91.91 |
|
| Distance ly |
299.81 |
|
