17304+5218 BU 1090 AC
17h 30m 25.98s +52° 18' 04.9" P.A. 156.00 sep 118.7 mag 2.79,13.45 Sp G2Ib-IIa dist. 116.55 pc (380.19 l.y.)
| Coord 2000 |
17304+5218 |
|
Discov num |
BU 1090 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 30 25.98 +52 18 04.9 |
|
| Date first |
1912 |
|
Date last |
2020 |
|
Obs |
8 |
|
| Pa first |
157 |
|
Pa last |
155.5 |
|
P.A. Now (θ) |
155.5° |
|
| Sep first |
115.6 |
|
Sep last |
118.72 |
|
Sep. Now (ρ) |
118.72" |
|
| Mag pri |
2.79 |
|
Mag sec |
13.45 |
|
delta mag (ΔM) |
10.66 |
|
Spectral class |
G2Ib-IIa (yellow) |
|
| Pri motion ra |
-016 |
|
Sec motion ra |
+004 |
|
| Pri motion dec |
+012 |
|
Sec motion dec |
-004 |
|
| Notes |
N
(See Notes) |
|
rPM=1.281
This double is not physical.
17304+5218 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Bet Dra |
30429 |
17 30 26 +52 18 05 |
BU 1090 AB |
2016 |
7 |
17 |
4.6 |
2.79 |
14.00 |
11.21 |
|
|
| Show |
|
30429 |
17 30 26 +52 18 05 |
BU 1090 AC |
2020 |
8 |
156 |
118.7 |
2.79 |
13.45 |
10.66 |
|
<=== |
| Show |
|
|
17 30 31 +52 16 18 |
FYM 654 CD |
2017 |
8 |
298 |
10.7 |
13.45 |
15.70 |
2.25 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Rastaban |
|
Constellation |
Draco |
|
SAO |
30429 |
|
HIP |
85670 |
|
| Tycho2 |
3521-01800-1 |
|
Gaia DR2 |
1415230383033121024 |
|
HD |
159181 |
|
HR |
6536 |
|
| GC |
23741 |
|
ADS |
10611 |
|
BD |
BD+52 2065 |
|
Bayer |
Beta Draconis |
|
| Bayer name |
Bet Dra |
|
Flamsteed |
23 Draconis |
|
Flamsteed name |
23 Dra |
|
FK5 |
653 |
|
| Distance |
116.55 |
|
Distance ly |
380.19 |
|
Bayer greek |
β Dra |
|
| Other names |
Rastaben, Alwaid, Asuia |
|
