18028+7547 STF 2302 AB (HD 166655)
18h 02m 50.94s +75° 47' 24.3" P.A. 248.00 sep 5.7 mag 7.03,9.97 Sp A0V dist. 141.04 pc (460.07 l.y.)
| Coord 2000 |
18028+7547 |
|
Discov num |
STF2302 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 02 50.94 +75 47 24.3 |
|
| Date first |
1833 |
|
Date last |
2015 |
|
Obs |
31 |
|
| Pa first |
246 |
|
Pa last |
247.8 |
|
P.A. Now (θ) |
247.8° |
|
| Sep first |
5.8 |
|
Sep last |
5.69 |
|
Sep. Now (ρ) |
5.69" |
|
| Mag pri |
7.03 |
|
Mag sec |
9.97 |
|
delta mag (ΔM) |
2.94 |
|
Spectral class |
A0V (white) |
|
| Pri motion ra |
-012 |
|
Sec motion ra |
-012 |
|
| Pri motion dec |
+041 |
|
Sec motion dec |
+041 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18028+7547 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 166655 |
8999 |
18 02 51 +75 47 24 |
STF 2302 AB |
2015 |
31 |
248 |
5.7 |
7.03 |
9.97 |
2.94 |
|
<=== |
| Show |
|
8999 |
18 02 51 +75 47 24 |
STF 2302 AC |
2015 |
43 |
278 |
22.9 |
7.03 |
9.66 |
2.63 |
|
|
| Show |
|
|
18 02 50 +75 47 22 |
STF 2302 BC |
2015 |
23 |
287 |
18.3 |
9.97 |
8.10 |
1.87 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 166655 |
|
Constellation |
Draco |
|
SAO |
8999 |
|
HIP |
88379 |
|
| Tycho2 |
4570-02411-1 |
|
Gaia DR2 |
2269103107346676736 |
|
HD |
166655 |
|
GC |
24685 |
|
| ADS |
11072 |
|
BD |
BD+75 655 |
|
Distance |
141.04 |
|
Distance ly |
460.07 |
|
