19531-1436 CHR 90 (V505 Sgr)
19h 53m 06.39s -14° 36' 11.1" P.A. 182.00 sep 0.4 mag 9.25,6.61 Sp A2V+G5IV dist. 119.05 pc (388.34 l.y.)
Coord 2000 |
19531-1436 |
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Discov num |
CHR 90 |
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Comp |
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Coord arcsec 2000 |
19 53 06.39 -14 36 11.1 |
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Date first |
1985 |
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Date last |
2021 |
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Obs |
27 |
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Pa first |
190 |
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Pa last |
182.3 |
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P.A. Now (θ) |
182.3° |
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Sep first |
0.3 |
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Sep last |
0.422 |
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Sep. Now (ρ) |
0.422" |
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Mag pri |
9.25 |
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Mag sec |
6.61 |
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delta mag (ΔM) |
2.64 |
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Spectral class |
A2V+G5IV (white/yellow) |
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Pri motion ra |
-001 |
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Sec motion ra |
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Pri motion dec |
-058 |
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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
Var name |
V505 Sgr |
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Constellation |
Sagittarius |
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SAO |
163080 |
|
HIP |
97849 |
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Tycho2 |
5737-00439-1 |
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Gaia DR2 |
6878492245986475904 |
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HD |
187949 |
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HR |
7571 |
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GC |
27525 |
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BD |
BD-14 5578 |
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Distance |
119.05 |
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Distance ly |
388.34 |
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ORBITAL ELEMENTS
Period (P) | 343.2y | |
Periastron (T) | 1998.85y | |
Semi-major axis (a) | 0.678a | |
Eccentricity (e) | 0.716 | |
Inclination (i) | 126.5° | |
Longitude of periastron (ω) | 73.5° | |
Node (Ω) | 3.3° | |
Notes | n | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
283.5 |
0.117 |
2001 |
268.7 |
0.117 |
2002 |
254.9 |
0.124 |
2003 |
243.0 |
0.136 |
2004 |
233.2 |
0.151 |
2005 |
225.3 |
0.168 |
2006 |
218.9 |
0.186 |
2007 |
213.6 |
0.204 |
2008 |
209.2 |
0.223 |
2009 |
205.5 |
0.241 |
2010 |
202.3 |
0.259 |
2011 |
199.5 |
0.277 |
2012 |
197.0 |
0.293 |
2013 |
194.8 |
0.310 |
2014 |
192.8 |
0.325 |
2015 |
191.0 |
0.341 |
2016 |
189.4 |
0.355 |
2017 |
187.8 |
0.369 |
2018 |
186.4 |
0.383 |
2019 |
185.1 |
0.396 |
2020 |
183.9 |
0.409 |
2021 |
182.7 |
0.421 |
2022 |
181.6 |
0.433 |
2023 |
180.6 |
0.444 |
2024 |
179.6 |
0.455 |
2025 |
178.6 |
0.466 |
2026 |
177.7 |
0.476 |
2027 |
176.9 |
0.486 |
2028 |
176.0 |
0.496 |
2029 |
175.2 |
0.505 |
2030 |
174.5 |
0.514 |
2031 |
173.7 |
0.523 |
2032 |
173.0 |
0.531 |
2033 |
172.3 |
0.539 |
2034 |
171.6 |
0.547 |
2035 |
171.0 |
0.555 |
2036 |
170.3 |
0.562 |
2037 |
169.7 |
0.570 |
2038 |
169.1 |
0.577 |
2039 |
168.5 |
0.583 |
2040 |
167.9 |
0.590 |
2041 |
167.3 |
0.597 |
2042 |
166.8 |
0.603 |
2043 |
166.2 |
0.609 |
2044 |
165.7 |
0.615 |
2045 |
165.2 |
0.621 |
2046 |
164.7 |
0.626 |
2047 |
164.2 |
0.632 |
2048 |
163.7 |
0.637 |
2049 |
163.2 |
0.642 |
2050 |
162.7 |
0.647 |
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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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