14542-6625 HJ 4707 (HD 130940)
14h 54m 10.91s -66° 25' 12.4" P.A. 268.00 sep 1.2 mag 7.53,8.09 Sp G0V dist. 38.49 pc (125.55 l.y.)
| Coord 2000 |
14542-6625 |
|
Discov num |
HJ 4707 |
|
Comp |
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|
Coord arcsec 2000 |
14 54 10.91 -66 25 12.4 |
|
| Date first |
1835 |
|
Date last |
2019 |
|
Obs |
65 |
|
| Pa first |
221 |
|
Pa last |
267.7 |
|
P.A. Now (θ) |
267.7° |
|
| Sep first |
1.5 |
|
Sep last |
1.248 |
|
Sep. Now (ρ) |
1.248" |
|
| Mag pri |
7.53 |
|
Mag sec |
8.09 |
|
delta mag (ΔM) |
0.56 |
|
Spectral class |
G0V (yellow) |
|
| Pri motion ra |
-280 |
|
Sec motion ra |
-280 |
|
| Pri motion dec |
-178 |
|
Sec motion dec |
-178 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 130940 |
|
Constellation |
Circinus |
|
SAO |
252945 |
|
HIP |
72921 |
|
| Tycho2 |
9032-02228-1 |
|
Gaia DR2 |
5848710168215059584 |
|
HD |
130940 |
|
GC |
20007 |
|
| CD |
CD-65 1810 |
|
CP |
CP-65 2914 |
|
Distance |
38.49 |
|
Distance ly |
125.55 |
|
ORBITAL ELEMENTS
| Period (P) | 313.7278y | ± 84.8355 |
Periastron (T) | 1925.0726y | ± 10.7829 |
Semi-major axis (a) | 1.5328a | ± 0.20774 |
| Eccentricity (e) | 0.36357 | ± 0.06149 |
Inclination (i) | 111.296° | ± 1.389 |
Longitude of periastron (ω) | 347.119° | ± 22.335 |
| Node (Ω) | 63.429° | ± 2.852 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
284.5 |
0.861 |
| 2001 |
283.3 |
0.882 |
| 2002 |
282.1 |
0.902 |
| 2003 |
281.0 |
0.923 |
| 2004 |
280.0 |
0.944 |
| 2005 |
279.0 |
0.965 |
| 2006 |
278.0 |
0.986 |
| 2007 |
277.1 |
1.007 |
| 2008 |
276.2 |
1.028 |
| 2009 |
275.4 |
1.049 |
| 2010 |
274.6 |
1.070 |
| 2011 |
273.8 |
1.091 |
| 2012 |
273.0 |
1.112 |
| 2013 |
272.3 |
1.133 |
| 2014 |
271.6 |
1.153 |
| 2015 |
270.9 |
1.174 |
| 2016 |
270.3 |
1.194 |
| 2017 |
269.7 |
1.214 |
| 2018 |
269.1 |
1.234 |
| 2019 |
268.5 |
1.254 |
| 2020 |
267.9 |
1.274 |
| 2021 |
267.3 |
1.294 |
| 2022 |
266.8 |
1.313 |
| 2023 |
266.3 |
1.332 |
| 2024 |
265.8 |
1.351 |
| 2025 |
265.3 |
1.370 |
| 2026 |
264.8 |
1.389 |
| 2027 |
264.3 |
1.407 |
| 2028 |
263.9 |
1.426 |
| 2029 |
263.4 |
1.444 |
| 2030 |
263.0 |
1.462 |
|
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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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