08246-0443 GAA 20 (HD 70937)
08h 24m 36.44s -04° 43' 01.2" P.A. 239.00 sep 0.0 mag 5.10,6.90 Sp F5V dist. 63.37 pc (206.71 l.y.)
| Coord 2000 |
08246-0443 |
|
Discov num |
GAA 20 |
|
Comp |
|
|
Coord arcsec 2000 |
08 24 36.44 -04 43 01.2 |
|
| Date first |
2020 |
|
Date last |
2023 |
|
Obs |
14 |
|
| Pa first |
13 |
|
Pa last |
239.3 |
|
P.A. Now (θ) |
120.6° |
|
| Sep first |
0.0 |
|
Sep last |
0.001 |
|
Sep. Now (ρ) |
0.001" |
|
| Mag pri |
5.10 |
|
Mag sec |
6.90 |
|
delta mag (ΔM) |
1.8 |
|
Spectral class |
F5V (yellow-white) |
|
| Pri motion ra |
+025 |
|
Sec motion ra |
|
|
| Pri motion dec |
-056 |
|
Sec motion dec |
|
|
| Notes |
O
K
(Orbital solution, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 70937 |
|
Constellation |
Hydra |
|
SAO |
135882 |
|
HIP |
41214 |
|
| Tycho2 |
4857-02154-1 |
|
HD |
70937 |
|
HR |
3295 |
|
GC |
11480 |
|
| BD |
BD-04 2328 |
|
Distance |
63.37 |
|
Distance ly |
206.71 |
|
ORBITAL ELEMENTS
| Period (P) | 27.8858d | ± 0.0004 |
Periastron (T) | 59577.754d (2021.994y) | ± 0.004 |
Semi-major axis (a) | 4.031m | ± 0.004 |
| Eccentricity (e) | 0.3716 | ± 0.0004 |
Inclination (i) | 78.6° | ± 0.07 |
Longitude of periastron (ω) | 169.192° | ± 0.06 |
| Node (Ω) | 20.46° | ± 0.06 |
Notes | | |
Reference | GaA2023 | |
| Equinox | | |
Last observation | | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
175.4 |
0.001 |
| 2001-01-01 |
202.5 |
0.003 |
| 2002-01-01 |
234.7 |
0.001 |
| 2003-01-01 |
352.4 |
0.002 |
| 2004-01-01 |
9.2 |
0.004 |
| 2005-01-01 |
15.0 |
0.005 |
| 2006-01-01 |
18.8 |
0.005 |
| 2007-01-01 |
22.4 |
0.005 |
| 2008-01-01 |
27.0 |
0.004 |
| 2009-01-01 |
37.3 |
0.002 |
| 2010-01-01 |
150.3 |
0.001 |
| 2011-01-01 |
198.8 |
0.003 |
| 2012-01-01 |
221.1 |
0.002 |
| 2013-01-01 |
341.0 |
0.001 |
| 2014-01-01 |
7.1 |
0.003 |
| 2015-01-01 |
13.9 |
0.005 |
| 2016-01-01 |
18.0 |
0.005 |
| 2017-01-01 |
21.5 |
0.005 |
| 2018-01-01 |
25.7 |
0.005 |
| 2019-01-01 |
33.6 |
0.003 |
| 2020-01-01 |
98.0 |
0.001 |
| 2021-01-01 |
194.7 |
0.002 |
| 2022-01-01 |
213.4 |
0.002 |
| 2023-01-01 |
318.4 |
0.001 |
| 2024-01-01 |
4.5 |
0.003 |
| 2025-01-01 |
12.8 |
0.004 |
| 2026-01-01 |
17.2 |
0.005 |
| 2027-01-01 |
20.7 |
0.005 |
| 2028-01-01 |
24.6 |
0.005 |
| 2029-01-01 |
31.1 |
0.003 |
| 2030-01-01 |
61.3 |
0.001 |
| 2031-01-01 |
189.4 |
0.002 |
| 2032-01-01 |
208.1 |
0.002 |
| 2033-01-01 |
278.4 |
0.001 |
| 2034-01-01 |
0.8 |
0.002 |
| 2035-01-01 |
11.5 |
0.004 |
| 2036-01-01 |
16.3 |
0.005 |
| 2037-01-01 |
19.9 |
0.005 |
| 2038-01-01 |
23.6 |
0.005 |
| 2039-01-01 |
29.1 |
0.004 |
| 2040-01-01 |
46.5 |
0.002 |
| 2041-01-01 |
180.9 |
0.001 |
| 2042-01-01 |
204.0 |
0.003 |
| 2043-01-01 |
243.6 |
0.001 |
| 2044-01-01 |
355.5 |
0.002 |
| 2045-01-01 |
9.9 |
0.004 |
| 2046-01-01 |
15.4 |
0.005 |
| 2047-01-01 |
19.1 |
0.005 |
| 2048-01-01 |
22.7 |
0.005 |
| 2049-01-01 |
27.5 |
0.004 |
| 2050-01-01 |
39.3 |
0.002 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
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