07305+0743 A 2869 (HD 59473)
07h 30m 27.65s +07° 43' 09.3" P.A. 110.00 sep 0.3 mag 8.30,8.50 Sp A5 dist. 207.47 pc (676.77 l.y.)
| Coord 2000 |
07305+0743 |
|
Discov num |
A 2869 |
|
Comp |
|
|
Coord arcsec 2000 |
07 30 27.65 +07 43 09.3 |
|
| Date first |
1914 |
|
Date last |
2021 |
|
Obs |
43 |
|
| Pa first |
84 |
|
Pa last |
109.9 |
|
P.A. Now (θ) |
106.6° |
|
| Sep first |
0.4 |
|
Sep last |
0.254 |
|
Sep. Now (ρ) |
0.267" |
|
| Mag pri |
8.30 |
|
Mag sec |
8.50 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
A5 (white) |
|
| Pri motion ra |
-020 |
|
Sec motion ra |
|
|
| Pri motion dec |
-010 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 59473 |
|
Constellation |
Canis Minor |
|
SAO |
115528 |
|
HIP |
36487 |
|
| Tycho2 |
0764-01087-1 |
|
Gaia DR2 |
3143003848276217472 |
|
HD |
59473 |
|
ADS |
6138 |
|
| BD |
BD+08 1789 |
|
Distance |
207.47 |
|
Distance ly |
676.77 |
|
ORBITAL ELEMENTS
| Period (P) | 143.69y | |
Periastron (T) | 1995.89y | |
Semi-major axis (a) | 0.214a | |
| Eccentricity (e) | 0.773 | |
Inclination (i) | 155.5° | |
Longitude of periastron (ω) | 48.1° | |
| Node (Ω) | 304.7° | |
Notes | n | |
Reference | Msn2019 | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
168.0 |
0.078 |
| 2001 |
158.5 |
0.090 |
| 2002 |
151.4 |
0.102 |
| 2003 |
145.7 |
0.114 |
| 2004 |
141.0 |
0.125 |
| 2005 |
137.1 |
0.135 |
| 2006 |
133.7 |
0.146 |
| 2007 |
130.8 |
0.155 |
| 2008 |
128.2 |
0.164 |
| 2009 |
125.9 |
0.173 |
| 2010 |
123.8 |
0.182 |
| 2011 |
121.9 |
0.190 |
| 2012 |
120.1 |
0.198 |
| 2013 |
118.5 |
0.205 |
| 2014 |
116.9 |
0.213 |
| 2015 |
115.5 |
0.220 |
| 2016 |
114.2 |
0.226 |
| 2017 |
112.9 |
0.233 |
| 2018 |
111.7 |
0.239 |
| 2019 |
110.6 |
0.245 |
| 2020 |
109.5 |
0.251 |
| 2021 |
108.5 |
0.256 |
| 2022 |
107.5 |
0.262 |
| 2023 |
106.6 |
0.267 |
| 2024 |
105.7 |
0.272 |
| 2025 |
104.8 |
0.277 |
| 2026 |
103.9 |
0.281 |
| 2027 |
103.1 |
0.286 |
| 2028 |
102.3 |
0.290 |
| 2029 |
101.5 |
0.294 |
| 2030 |
100.8 |
0.298 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
