17053+5428 BU 1088 AC
17h 05m 20.20s +54° 28' 14.3" P.A. 174.00 sep 12.2 mag 5.66,13.70 Sp F7V dist. 27.43 pc (89.48 l.y.)
Coord 2000 |
17053+5428 |
|
Discov num |
BU 1088 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 05 20.20 +54 28 14.3 |
|
Date first |
1925 |
|
Date last |
2015 |
|
Obs |
6 |
|
Pa first |
179 |
|
Pa last |
174.2 |
|
P.A. Now (θ) |
174.2° |
|
Sep first |
13.8 |
|
Sep last |
12.186 |
|
Sep. Now (ρ) |
12.186" |
|
Mag pri |
5.66 |
|
Mag sec |
13.70 |
|
delta mag (ΔM) |
8.04 |
|
Spectral class |
F7V (yellow-white) |
|
Pri motion ra |
-068 |
|
Sec motion ra |
-075 |
|
Pri motion dec |
+089 |
|
Sec motion dec |
+089 |
|
Notes |
N
T
(See Notes, Parallax indicates physical) |
|
rPM=0.06 (< 0.3, Physical double)
This double is physical.
17053+5428 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
Alrakis |
30239 |
17 05 20 +54 28 14 |
STF 2130 AB |
2020 |
831 |
358 |
2.5 |
5.66 |
5.69 |
0.03 |
Y |
|
Show |
|
30239 |
17 05 20 +54 28 14 |
BU 1088 AC |
2015 |
6 |
174 |
12.2 |
5.66 |
13.70 |
8.04 |
|
<=== |
Show |
|
30239 |
17 05 20 +54 28 14 |
BU 1088 BC |
2020 |
14 |
179 |
11.0 |
5.69 |
13.70 |
8.01 |
Y |
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Common name |
Alrakis |
|
Constellation |
Draco |
|
SAO |
30239 |
|
HIP |
83608 |
|
Tycho2 |
3890-01396-2 |
|
Gaia DR2 |
1420101696285626624 |
|
HD |
154906 |
|
HR |
6370 |
|
GC |
23092 |
|
ADS |
10345 |
|
GL |
Wo 9584B |
|
BD |
BD+54 1857 |
|
Bayer |
Mu Draconis |
|
Bayer name |
Mu Dra |
|
Flamsteed |
21 Draconis |
|
Flamsteed name |
21 Dra |
|
Distance |
27.43 |
|
Distance ly |
89.48 |
|
Bayer greek |
μ Dra |
|
Other names |
Arrakis, Errakis |
|