18426+5532 H 6 37 AB (46 Dra)
18h 42m 37.96s +55° 32' 21.8" P.A. 158.00 sep 147.0 mag 5.01,11.04 Sp B9.5pHg: dist. 104.38 pc (340.49 l.y.)
| Coord 2000 |
18426+5532 |
|
Discov num |
H 6 37 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 42 37.96 +55 32 21.8 |
|
| Date first |
1879 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
160 |
|
Pa last |
158 |
|
P.A. Now (θ) |
158° |
|
| Sep first |
146.8 |
|
Sep last |
147.004 |
|
Sep. Now (ρ) |
147.004" |
|
| Mag pri |
5.01 |
|
Mag sec |
11.04 |
|
delta mag (ΔM) |
6.03 |
|
Spectral class |
B9.5pHg: (blue-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
+019 |
|
| Pri motion dec |
+023 |
|
Sec motion dec |
+034 |
|
| Notes |
N
(See Notes) |
|
rPM=0.632
Nature of this double is uncertain.
18426+5532 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
31119 |
18 42 38 +55 32 22 |
ISO 7 Aa,Ab |
1987 |
1 |
135 |
0.2 |
5.04 |
|
|
|
|
| Show |
46 Dra |
31119 |
18 42 38 +55 32 22 |
H 6 37 AB |
2015 |
7 |
158 |
147.0 |
5.01 |
11.04 |
6.03 |
|
<=== |
| Show |
|
31119 |
18 42 38 +55 32 22 |
H 6 37 AC |
2015 |
14 |
340 |
331.2 |
5.01 |
8.24 |
3.23 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
46 Dra |
|
Var name |
NSV11273 Dra |
|
Constellation |
Draco |
|
SAO |
31119 |
|
| HIP |
91755 |
|
Tycho2 |
3922-02095-1 |
|
Gaia DR2 |
2147865732587997056 |
|
HD |
173524 |
|
| HR |
7049 |
|
GC |
25635 |
|
BD |
BD+55 2107 |
|
Flamsteed |
46 Draconis |
|
| Flamsteed name |
46 Dra |
|
FK5 |
3491 |
|
Distance |
104.38 |
|
Distance ly |
340.49 |
|
