10479-6416 HDS 1544 (HD 93738)
10h 47m 53.55s -64° 15' 46.3" P.A. 153.00 sep 0.2 mag 6.74,8.10 Sp B9.5V dist. 145.35 pc (474.13 l.y.)
Coord 2000 |
10479-6416 |
|
Discov num |
HDS1544 |
|
Comp |
|
|
Coord arcsec 2000 |
10 47 53.55 -64 15 46.3 |
|
Date first |
1991 |
|
Date last |
2021 |
|
Obs |
8 |
|
Pa first |
22 |
|
Pa last |
152.5 |
|
P.A. Now (θ) |
152.5° |
|
Sep first |
0.1 |
|
Sep last |
0.157 |
|
Sep. Now (ρ) |
0.157" |
|
Mag pri |
6.74 |
|
Mag sec |
8.10 |
|
delta mag (ΔM) |
1.36 |
|
Spectral class |
B9.5V (blue-white) |
|
Pri motion ra |
-015 |
|
Sec motion ra |
|
|
Pri motion dec |
+010 |
|
Sec motion dec |
|
|
Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 93738 |
|
Constellation |
Carina |
|
SAO |
251128 |
|
HIP |
52815 |
|
Tycho2 |
8965-01383-1 |
|
Gaia DR2 |
5239656077327422336 |
|
HD |
93738 |
|
GC |
14874 |
|
CP |
CP-63 1672 |
|
Distance |
145.35 |
|
Distance ly |
474.13 |
|
ORBITAL ELEMENTS
Period (P) | 78y | |
Periastron (T) | 2003.8y | |
Semi-major axis (a) | 0.224a | |
Eccentricity (e) | 0.319 | |
Inclination (i) | 127.5° | |
Longitude of periastron (ω) | 175° | |
Node (Ω) | 96.3° | |
Notes | | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
303.2 |
0.137 |
2001 |
296.4 |
0.143 |
2002 |
290.0 |
0.147 |
2003 |
284.0 |
0.151 |
2004 |
278.2 |
0.152 |
2005 |
272.5 |
0.153 |
2006 |
266.7 |
0.151 |
2007 |
260.8 |
0.149 |
2008 |
254.6 |
0.145 |
2009 |
248.0 |
0.140 |
2010 |
241.0 |
0.135 |
2011 |
233.4 |
0.131 |
2012 |
225.4 |
0.127 |
2013 |
216.8 |
0.124 |
2014 |
208.0 |
0.122 |
2015 |
199.1 |
0.122 |
2016 |
190.3 |
0.124 |
2017 |
181.9 |
0.128 |
2018 |
174.0 |
0.133 |
2019 |
166.9 |
0.140 |
2020 |
160.4 |
0.148 |
2021 |
154.6 |
0.156 |
2022 |
149.5 |
0.165 |
2023 |
144.8 |
0.174 |
2024 |
140.7 |
0.184 |
2025 |
136.9 |
0.193 |
2026 |
133.5 |
0.203 |
2027 |
130.4 |
0.212 |
2028 |
127.5 |
0.221 |
2029 |
124.9 |
0.229 |
2030 |
122.4 |
0.237 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|