20001+1737 S 730 AB (HD 189576)
20h 00m 08.28s +17° 36' 38.6" P.A. 14.00 sep 112.8 mag 7.16,8.45 Sp K0+F5 dist. 666.67 pc (2174.68 l.y.)
| Coord 2000 |
20001+1737 |
|
Discov num |
S 730 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 00 08.28 +17 36 38.6 |
|
| Date first |
1825 |
|
Date last |
2014 |
|
Obs |
27 |
|
| Pa first |
16 |
|
Pa last |
14.3 |
|
P.A. Now (θ) |
14.3° |
|
| Sep first |
115.9 |
|
Sep last |
112.76 |
|
Sep. Now (ρ) |
112.76" |
|
| Mag pri |
7.16 |
|
Mag sec |
8.45 |
|
delta mag (ΔM) |
1.29 |
|
Spectral class |
K0+F5 (yellow-orange/yellow-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
-012 |
|
| Pri motion dec |
+011 |
|
Sec motion dec |
-006 |
|
| Notes |
N
(See Notes) |
|
rPM=1.792
This double is not physical.
20001+1737 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 189576 |
105525 |
20 00 08 +17 36 39 |
S 730 AB |
2014 |
27 |
14 |
112.8 |
7.16 |
8.45 |
1.29 |
|
<=== |
| Show |
|
|
20 00 08 +17 36 39 |
S 730 AC |
2015 |
23 |
338 |
78.6 |
7.16 |
10.21 |
3.05 |
|
|
| Show |
|
|
20 00 08 +17 36 39 |
S 730 AD |
2015 |
17 |
198 |
41.1 |
7.16 |
9.90 |
2.74 |
|
|
| Show |
|
|
20 00 08 +17 36 39 |
HO 638 AE |
1928 |
4 |
283 |
2.7 |
7.16 |
10.20 |
3.04 |
|
|
| Show |
|
105525 |
20 00 10 +17 38 28 |
S 730 BC |
2019 |
17 |
237 |
68.6 |
8.45 |
10.21 |
1.76 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 189576 |
|
Constellation |
Sagitta |
|
SAO |
105525 |
|
HIP |
98443 |
|
| Tycho2 |
1621-01879-1 |
|
Gaia DR2 |
1820490268613989504 |
|
HD |
189576 |
|
BD |
BD+17 4185 |
|
| Distance |
666.67 |
|
Distance ly |
2174.68 |
|
