18548+4852 BU 1255 AB
18h 54m 47.17s +48° 51' 35.0" P.A. 12.00 sep 0.7 mag 5.80,12.60 Sp F5V dist. 55.28 pc (180.32 l.y.)
| Coord 2000 |
18548+4852 |
|
Discov num |
BU 1255 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 54 47.17 +48 51 35.0 |
|
| Date first |
1891 |
|
Date last |
2010 |
|
Obs |
10 |
|
| Pa first |
88 |
|
Pa last |
11.8 |
|
P.A. Now (θ) |
11.8° |
|
| Sep first |
1.6 |
|
Sep last |
0.708 |
|
Sep. Now (ρ) |
0.708" |
|
| Mag pri |
5.80 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
6.8 |
|
Spectral class |
F5V (yellow-white) |
|
| Pri motion ra |
-060 |
|
Sec motion ra |
|
|
| Pri motion dec |
-133 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18548+4852 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
47913 |
18 54 47 +48 51 35 |
BU 1255 AB |
2010 |
10 |
12 |
0.7 |
5.80 |
12.60 |
6.80 |
|
<=== |
| Show |
|
47913 |
18 54 47 +48 51 35 |
BU 1255 AC |
2015 |
4 |
272 |
27.5 |
5.80 |
13.10 |
7.30 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Draco |
|
SAO |
47913 |
|
HIP |
92822 |
|
Tycho2 |
3548-02530-1 |
|
| Gaia DR2 |
2131831520161558272 |
|
HD |
175824 |
|
HR |
7154 |
|
GC |
25980 |
|
| ADS |
11846 |
|
BD |
BD+48 2793 |
|
Distance |
55.28 |
|
Distance ly |
180.32 |
|