19301-4904 HDS 2772
19h 30m 08.30s -49° 03' 57.4" P.A. 334.00 sep 0.1 mag 10.10,13.00 Sp G6V dist. 69.69 pc (227.33 l.y.)
Coord 2000 |
19301-4904 |
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Discov num |
HDS2772 |
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Comp |
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Coord arcsec 2000 |
19 30 08.30 -49 03 57.4 |
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Date first |
1991 |
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Date last |
2020 |
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Obs |
7 |
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Pa first |
163 |
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Pa last |
333.8 |
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P.A. Now (θ) |
333.8° |
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Sep first |
0.5 |
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Sep last |
0.088 |
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Sep. Now (ρ) |
0.088" |
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Mag pri |
10.10 |
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Mag sec |
13.00 |
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delta mag (ΔM) |
2.9 |
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Spectral class |
G6V (yellow) |
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Pri motion ra |
-026 |
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Sec motion ra |
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Pri motion dec |
-026 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Telescopium |
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HIP |
95891 |
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Tycho2 |
8397-00662-1 |
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Gaia DR2 |
6659033504651375232 |
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HD |
183074 |
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CD |
CD-4912692 |
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CP |
CP-4910976 |
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Distance |
69.69 |
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Distance ly |
227.33 |
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ORBITAL ELEMENTS
Period (P) | 80y | |
Periastron (T) | 2019.69y | |
Semi-major axis (a) | 0.312a | |
Eccentricity (e) | 0.7 | |
Inclination (i) | 66.9° | |
Longitude of periastron (ω) | 144.4° | |
Node (Ω) | 171.3° | |
Notes | | |
Reference | Tok2017c | |
Equinox | 2000 | |
Last observation | 2017 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
167.5 |
0.424 |
2001 |
168.2 |
0.415 |
2002 |
168.9 |
0.405 |
2003 |
169.7 |
0.394 |
2004 |
170.5 |
0.382 |
2005 |
171.4 |
0.368 |
2006 |
172.3 |
0.353 |
2007 |
173.4 |
0.337 |
2008 |
174.5 |
0.319 |
2009 |
175.8 |
0.300 |
2010 |
177.2 |
0.279 |
2011 |
179.0 |
0.256 |
2012 |
181.0 |
0.231 |
2013 |
183.7 |
0.203 |
2014 |
187.2 |
0.172 |
2015 |
192.3 |
0.139 |
2016 |
200.8 |
0.103 |
2017 |
218.7 |
0.067 |
2018 |
264.3 |
0.044 |
2019 |
317.5 |
0.059 |
2020 |
341.1 |
0.087 |
2021 |
354.3 |
0.105 |
2022 |
4.8 |
0.110 |
2023 |
15.1 |
0.108 |
2024 |
26.2 |
0.103 |
2025 |
38.3 |
0.099 |
2026 |
51.3 |
0.097 |
2027 |
64.4 |
0.098 |
2028 |
76.7 |
0.103 |
2029 |
87.6 |
0.110 |
2030 |
96.8 |
0.121 |
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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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