20099+2055 STF 2637 AD
20h 09m 56.61s +20° 54' 53.2" P.A. 226.00 sep 172.8 mag 6.56,11.94 Sp F3V dist. 45.25 pc (147.61 l.y.)
| Coord 2000 |
20099+2055 |
|
Discov num |
STF2637 |
|
Comp |
AD |
|
Coord arcsec 2000 |
20 09 56.61 +20 54 53.2 |
|
| Date first |
1887 |
|
Date last |
2016 |
|
Obs |
10 |
|
| Pa first |
229 |
|
Pa last |
226.3 |
|
P.A. Now (θ) |
226.3° |
|
| Sep first |
158.0 |
|
Sep last |
172.8 |
|
Sep. Now (ρ) |
172.8" |
|
| Mag pri |
6.56 |
|
Mag sec |
11.94 |
|
delta mag (ΔM) |
5.38 |
|
Spectral class |
F3V (yellow-white) |
|
| Pri motion ra |
+059 |
|
Sec motion ra |
-005 |
|
| Pri motion dec |
+098 |
|
Sec motion dec |
-003 |
|
| Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
rPM=1.045
This double is not physical.
20099+2055 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
The Sge |
88276 |
20 09 57 +20 54 53 |
STF 2637 AB |
2020 |
143 |
331 |
11.6 |
6.56 |
8.85 |
2.29 |
|
|
| Show |
|
88276 |
20 09 57 +20 54 53 |
STF 2637 AC |
2020 |
97 |
222 |
91.9 |
6.56 |
7.52 |
0.96 |
|
|
| Show |
|
88276 |
20 09 57 +20 54 53 |
STF 2637 AD |
2016 |
10 |
226 |
172.8 |
6.56 |
11.94 |
5.38 |
|
<=== |
| Show |
|
88270 |
20 09 56 +20 55 04 |
STF 2637 BC |
2017 |
60 |
215 |
95.7 |
8.85 |
7.52 |
1.33 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagitta |
|
SAO |
88276 |
|
HIP |
99352 |
|
Tycho2 |
1630-00481-1 |
|
| Gaia DR2 |
1829590548393010560 |
|
HD |
191570 |
|
HR |
7705 |
|
GC |
27987 |
|
| ADS |
13442 |
|
BD |
BD+20 4453 |
|
Bayer |
Theta Sagittae |
|
Bayer name |
The Sge |
|
| Flamsteed |
17 Sagittae |
|
Flamsteed name |
17 Sge |
|
Distance |
45.25 |
|
Distance ly |
147.61 |
|
| Bayer greek |
θ Sge |
|
