20001+1737 S 730 BC
20h 00m 10.25s +17° 38' 28.3" P.A. 237.00 sep 68.6 mag 8.45,10.21 Sp F5
Coord 2000 |
20001+1737 |
|
Discov num |
S 730 |
|
Comp |
BC |
|
Coord arcsec 2000 |
20 00 10.25 +17 38 28.3 |
|
Date first |
1879 |
|
Date last |
2019 |
|
Obs |
17 |
|
Pa first |
239 |
|
Pa last |
236.6 |
|
P.A. Now (θ) |
236.6° |
|
Sep first |
70.4 |
|
Sep last |
68.632 |
|
Sep. Now (ρ) |
68.632" |
|
Mag pri |
8.45 |
|
Mag sec |
10.21 |
|
delta mag (ΔM) |
1.76 |
|
Spectral class |
F5 (yellow-white) |
|
Pri motion ra |
-012 |
|
Sec motion ra |
+000 |
|
Pri motion dec |
-006 |
|
Sec motion dec |
-004 |
|
Notes |
N
(See Notes) |
|
rPM=0.907
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
Constellation |
Sagitta |
|
SAO |
105525 |
|
Tycho2 |
1621-01662-1 |
|
Gaia DR2 |
1820490474772431872 |
|
HD |
189575 |
|
DM |
BD+17 4187 |
|