09110-1929 I 824 (HD 79034)
09h 11m 00.59s -19° 28' 59.1" P.A. 155.00 sep 0.1 mag 9.30,9.40 Sp F0mdD
| Coord 2000 |
09110-1929 |
|
Discov num |
I 824 |
|
Comp |
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Coord arcsec 2000 |
09 11 00.59 -19 28 59.1 |
|
| Date first |
1910 |
|
Date last |
2020 |
|
Obs |
17 |
|
| Pa first |
260 |
|
Pa last |
154.7 |
|
P.A. Now (θ) |
154.7° |
|
| Sep first |
0.5 |
|
Sep last |
0.073 |
|
Sep. Now (ρ) |
0.073" |
|
| Mag pri |
9.30 |
|
Mag sec |
9.40 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
F0mdD (yellow-white) |
|
| Pri motion ra |
-022 |
|
Sec motion ra |
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|
| Pri motion dec |
+002 |
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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 |
HD 79034 |
|
Constellation |
Hydra |
|
SAO |
154979 |
|
Tycho2 |
6035-01215-1 |
|
| Gaia DR2 |
5680352771631938944 |
|
HD |
79034 |
|
ADS |
7225 |
|
ORBITAL ELEMENTS
| Period (P) | 940y | |
Periastron (T) | 2029.4y | |
Semi-major axis (a) | 0.492a | |
| Eccentricity (e) | 0.869 | |
Inclination (i) | 130.3° | |
Longitude of periastron (ω) | 18° | |
| Node (Ω) | 116.5° | |
Notes | n | |
Reference | Doc2020d | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
223.6 |
0.139 |
| 2001 |
222.0 |
0.135 |
| 2002 |
220.3 |
0.131 |
| 2003 |
218.6 |
0.127 |
| 2004 |
216.7 |
0.123 |
| 2005 |
214.6 |
0.119 |
| 2006 |
212.5 |
0.116 |
| 2007 |
210.2 |
0.112 |
| 2008 |
207.7 |
0.108 |
| 2009 |
205.1 |
0.105 |
| 2010 |
202.3 |
0.101 |
| 2011 |
199.3 |
0.098 |
| 2012 |
196.1 |
0.095 |
| 2013 |
192.7 |
0.092 |
| 2014 |
189.1 |
0.089 |
| 2015 |
185.2 |
0.086 |
| 2016 |
181.1 |
0.084 |
| 2017 |
176.7 |
0.081 |
| 2018 |
172.1 |
0.079 |
| 2019 |
167.3 |
0.077 |
| 2020 |
162.2 |
0.076 |
| 2021 |
157.0 |
0.074 |
| 2022 |
151.5 |
0.073 |
| 2023 |
145.9 |
0.072 |
| 2024 |
140.1 |
0.071 |
| 2025 |
134.1 |
0.070 |
| 2026 |
127.9 |
0.069 |
| 2027 |
121.5 |
0.067 |
| 2028 |
114.7 |
0.065 |
| 2029 |
107.6 |
0.063 |
| 2030 |
100.0 |
0.061 |
|
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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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