19346+1808 STT 375 (HD 184591)
19h 34m 37.45s +18° 07' 41.2" P.A. 183.00 sep 0.7 mag 7.72,8.88 Sp G5 dist. 233.64 pc (762.13 l.y.)
| Coord 2000 |
19346+1808 |
|
Discov num |
STT 375 |
|
Comp |
|
|
Coord arcsec 2000 |
19 34 37.45 +18 07 41.2 |
|
| Date first |
1843 |
|
Date last |
2018 |
|
Obs |
108 |
|
| Pa first |
120 |
|
Pa last |
183.2 |
|
P.A. Now (θ) |
183.2° |
|
| Sep first |
0.6 |
|
Sep last |
0.66 |
|
Sep. Now (ρ) |
0.66" |
|
| Mag pri |
7.72 |
|
Mag sec |
8.88 |
|
delta mag (ΔM) |
1.16 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+021 |
|
Sec motion ra |
+021 |
|
| Pri motion dec |
+021 |
|
Sec motion dec |
+021 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 184591 |
|
Constellation |
Sagitta |
|
SAO |
104991 |
|
HIP |
96280 |
|
| Tycho2 |
1605-01335-1 |
|
Gaia DR2 |
4323078857706156288 |
|
HD |
184591 |
|
GC |
27049 |
|
| ADS |
12623 |
|
BD |
BD+17 4009 |
|
Distance |
233.64 |
|
Distance ly |
762.13 |
|
ORBITAL ELEMENTS
| Period (P) | 682y | |
Periastron (T) | 2271.2y | |
Semi-major axis (a) | 0.521a | |
| Eccentricity (e) | 0.2 | |
Inclination (i) | 24° | |
Longitude of periastron (ω) | 159.4° | |
| Node (Ω) | 177.7° | |
Notes | n | |
Reference | Zir2015a | |
| Equinox | 2000 | |
Last observation | 2011 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
182.2 |
0.610 |
| 2001 |
182.5 |
0.610 |
| 2002 |
182.8 |
0.609 |
| 2003 |
183.2 |
0.609 |
| 2004 |
183.5 |
0.608 |
| 2005 |
183.9 |
0.607 |
| 2006 |
184.2 |
0.607 |
| 2007 |
184.6 |
0.606 |
| 2008 |
184.9 |
0.606 |
| 2009 |
185.3 |
0.605 |
| 2010 |
185.6 |
0.605 |
| 2011 |
186.0 |
0.604 |
| 2012 |
186.3 |
0.604 |
| 2013 |
186.7 |
0.603 |
| 2014 |
187.0 |
0.602 |
| 2015 |
187.4 |
0.602 |
| 2016 |
187.7 |
0.601 |
| 2017 |
188.1 |
0.600 |
| 2018 |
188.5 |
0.600 |
| 2019 |
188.8 |
0.599 |
| 2020 |
189.2 |
0.598 |
| 2021 |
189.5 |
0.598 |
| 2022 |
189.9 |
0.597 |
| 2023 |
190.3 |
0.596 |
| 2024 |
190.6 |
0.596 |
| 2025 |
191.0 |
0.595 |
| 2026 |
191.3 |
0.594 |
| 2027 |
191.7 |
0.593 |
| 2028 |
192.1 |
0.593 |
| 2029 |
192.4 |
0.592 |
| 2030 |
192.8 |
0.591 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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