18339+5221 STF 2348 AB,C (HD 171779)
18h 33m 56.69s +52° 21' 12.6" P.A. 271.00 sep 25.7 mag 5.50,8.65 Sp K0III+F0 dist. 195.69 pc (638.34 l.y.)
| Coord 2000 |
18339+5221 |
|
Discov num |
STF2348 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
18 33 56.69 +52 21 12.6 |
|
| Date first |
1797 |
|
Date last |
2012 |
|
Obs |
63 |
|
| Pa first |
270 |
|
Pa last |
271.2 |
|
P.A. Now (θ) |
271.2° |
|
| Sep first |
26.9 |
|
Sep last |
25.68 |
|
Sep. Now (ρ) |
25.68" |
|
| Mag pri |
5.50 |
|
Mag sec |
8.65 |
|
delta mag (ΔM) |
3.15 |
|
Spectral class |
K0III+F0 (yellow-orange/yellow-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
+003 |
|
Sec motion dec |
+001 |
|
| Notes |
N
V
(See Notes, Proper motion indicates physical) |
|
rPM=0.632
This double is physical.
18339+5221 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
31051 |
18 33 57 +52 21 13 |
A 1377 AB |
2016 |
202 |
134 |
0.2 |
6.20 |
6.40 |
0.20 |
Y |
|
| Show |
HD 171779 |
31051 |
18 33 57 +52 21 13 |
STF 2348 AB,C |
2012 |
63 |
271 |
25.7 |
5.50 |
8.65 |
3.15 |
|
<=== |
| Show |
|
31051 |
18 33 57 +52 21 13 |
SLE 216 AB,D |
2005 |
4 |
338 |
93.7 |
5.50 |
11.20 |
5.70 |
|
|
| Show |
|
31051 |
18 33 57 +52 21 13 |
SLE 216 AB,E |
2005 |
3 |
232 |
109.1 |
5.50 |
12.20 |
6.70 |
|
|
Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 171779 |
|
Constellation |
Draco |
|
SAO |
31051 |
|
HIP |
91013 |
|
| Tycho2 |
3539-02620-1 |
|
HD |
171779 |
|
HR |
6983 |
|
ADS |
11468 |
|
| BD |
BD+52 2238 |
|
Distance |
195.69 |
|
Distance ly |
638.34 |
|
