18309+3840 STF 2338 AB
18h 30m 54.75s +38° 39' 33.8" P.A. 301.00 sep 12.1 mag 9.30,11.20 Sp K2
| Coord 2000 |
18309+3840 |
|
Discov num |
STF2338 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 30 54.75 +38 39 33.8 |
|
| Date first |
1828 |
|
Date last |
2017 |
|
Obs |
26 |
|
| Pa first |
302 |
|
Pa last |
300.6 |
|
P.A. Now (θ) |
300.6° |
|
| Sep first |
10.0 |
|
Sep last |
12.1 |
|
Sep. Now (ρ) |
12.1" |
|
| Mag pri |
9.30 |
|
Mag sec |
11.20 |
|
delta mag (ΔM) |
1.9 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-009 |
|
| Notes |
N
(See Notes) |
|
rPM=0.857
This double is not physical.
18309+3840 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 30 55 +38 39 34 |
STF 2338 AB |
2017 |
26 |
301 |
12.1 |
9.30 |
11.20 |
1.90 |
|
<=== |
| Show |
|
|
18 30 55 +38 39 34 |
STF 2338 AC |
2017 |
24 |
206 |
76.4 |
9.30 |
9.62 |
0.32 |
|
|
| Show |
|
|
18 30 55 +38 39 34 |
STF 2338 AE |
2017 |
13 |
154 |
51.7 |
9.30 |
13.00 |
3.70 |
|
|
| Show |
|
|
18 30 52 +38 38 25 |
STF 2338 CD |
2017 |
6 |
243 |
13.0 |
9.62 |
14.80 |
5.18 |
|
|
| Show |
|
|
18 30 52 +38 38 25 |
STF 2338 CE |
2017 |
11 |
69 |
60.7 |
9.62 |
13.00 |
3.38 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
Tycho2 |
3105-00683-1 |
|
Gaia DR2 |
2108423433003279360 |
|