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 |
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Discov num |
FIN 327 |
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Comp |
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Coord arcsec 2000 |
19 25 16.45 -24 30 30.4 |
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Date first |
1951 |
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Date last |
2021 |
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Obs |
68 |
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Pa first |
271 |
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Pa last |
259.2 |
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P.A. Now (θ) |
253.4° |
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Sep first |
0.1 |
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Sep last |
0.113 |
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Sep. Now (ρ) |
0.074" |
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Mag pri |
5.80 |
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Mag sec |
5.80 |
|
delta mag (ΔM) |
0 |
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Spectral class |
Am (white) |
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Pri motion ra |
+052 |
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Sec motion ra |
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Pri motion dec |
-055 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
Chi1 Sgr |
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Constellation |
Sagittarius |
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SAO |
188101 |
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HIP |
95477 |
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Tycho2 |
6880-02342-1 |
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Gaia DR2 |
6769709554832595456 |
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HD |
182369 |
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HR |
7362 |
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GC |
26789 |
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CD |
CD-2415303 |
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CP |
CP-24 6721 |
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Bayer |
Chi 1 Sagittarii |
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Bayer name |
Chi1 Sgr |
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Flamsteed |
47 Sagittarii |
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Flamsteed name |
47 Sgr |
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Distance |
77.22 |
|
Distance ly |
251.89 |
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Bayer greek |
χ1 Sgr |
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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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