19253-2431 FIN 327 (Chi1 Sgr)
19h 25m 16.45s -24° 30' 30.4" P.A. 259.00 sep 0.1 mag 5.80,5.80 Sp Am dist. 77.22 pc (251.89 l.y.)
| Coord 2000 |
19253-2431 |
|
Discov num |
FIN 327 |
|
Comp |
|
|
Coord arcsec 2000 |
19 25 16.45 -24 30 30.4 |
|
| Date first |
1951 |
|
Date last |
2021 |
|
Obs |
68 |
|
| Pa first |
271 |
|
Pa last |
259.2 |
|
P.A. Now (θ) |
253.4° |
|
| Sep first |
0.1 |
|
Sep last |
0.113 |
|
Sep. Now (ρ) |
0.074" |
|
| Mag pri |
5.80 |
|
Mag sec |
5.80 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
Am (white) |
|
| Pri motion ra |
+052 |
|
Sec motion ra |
|
|
| Pri motion dec |
-055 |
|
Sec motion dec |
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|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
Chi1 Sgr |
|
Constellation |
Sagittarius |
|
SAO |
188101 |
|
HIP |
95477 |
|
| Tycho2 |
6880-02342-1 |
|
Gaia DR2 |
6769709554832595456 |
|
HD |
182369 |
|
HR |
7362 |
|
| GC |
26789 |
|
CD |
CD-2415303 |
|
CP |
CP-24 6721 |
|
Bayer |
Chi 1 Sagittarii |
|
| Bayer name |
Chi1 Sgr |
|
Flamsteed |
47 Sagittarii |
|
Flamsteed name |
47 Sgr |
|
Distance |
77.22 |
|
| Distance ly |
251.89 |
|
Bayer greek |
χ1 Sgr |
|
ORBITAL ELEMENTS
| Period (P) | 5.72y | |
Periastron (T) | 1984.29y | |
Semi-major axis (a) | 0.069a | |
| Eccentricity (e) | 0.71 | |
Inclination (i) | 97.3° | |
Longitude of periastron (ω) | 10.7° | |
| Node (Ω) | 79° | |
Notes | n | |
Reference | Msn1999c | |
| Equinox | 2000 | |
Last observation | 1992 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
253.9 |
0.080 |
| 2001 |
231.7 |
0.013 |
| 2002 |
266.7 |
0.038 |
| 2003 |
260.5 |
0.098 |
| 2004 |
258.2 |
0.116 |
| 2005 |
256.1 |
0.105 |
| 2006 |
252.5 |
0.065 |
| 2007 |
91.5 |
0.014 |
| 2008 |
263.6 |
0.061 |
| 2009 |
259.8 |
0.106 |
| 2010 |
257.7 |
0.116 |
| 2011 |
255.4 |
0.097 |
| 2012 |
250.0 |
0.047 |
| 2013 |
65.4 |
0.011 |
| 2014 |
262.0 |
0.078 |
| 2015 |
259.1 |
0.112 |
| 2016 |
257.1 |
0.114 |
| 2017 |
254.5 |
0.087 |
| 2018 |
244.1 |
0.026 |
| 2019 |
271.7 |
0.022 |
| 2020 |
261.0 |
0.092 |
| 2021 |
258.6 |
0.116 |
| 2022 |
256.5 |
0.109 |
| 2023 |
253.4 |
0.074 |
| 2024 |
174.8 |
0.005 |
| 2025 |
265.0 |
0.048 |
| 2026 |
260.2 |
0.102 |
| 2027 |
258.0 |
0.117 |
| 2028 |
255.8 |
0.102 |
| 2029 |
251.6 |
0.058 |
| 2030 |
80.9 |
0.020 |
|
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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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