10448-5934 SNA 18 (HD 93250)
10h 44m 45.04s -59° 33' 54.7" P.A. 22.00 sep 0.0 mag 7.40,7.60 Sp O7.5V+B0V dist. 1886.79 pc (6154.71 l.y.)
| Coord 2000 |
10448-5934 |
|
Discov num |
SNA 18 |
|
Comp |
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Coord arcsec 2000 |
10 44 45.04 -59 33 54.7 |
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| Date first |
2010 |
|
Date last |
2016 |
|
Obs |
16 |
|
| Pa first |
75 |
|
Pa last |
21.5 |
|
P.A. Now (θ) |
21.5° |
|
| Sep first |
0.0 |
|
Sep last |
0.001 |
|
Sep. Now (ρ) |
0.001" |
|
| Mag pri |
7.40 |
|
Mag sec |
7.60 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
O7.5V+B0V (blue/blue-white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
|
|
| Pri motion dec |
+003 |
|
Sec motion dec |
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| Notes |
N
V
K
(See Notes, Proper motion indicates physical, K-band or other infrared magnitudes) |
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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 93250 |
|
Constellation |
Carina |
|
SAO |
238423 |
|
HIP |
52558 |
|
| Tycho2 |
8626-02075-1 |
|
Gaia DR2 |
5350383460949215232 |
|
HD |
93250 |
|
GC |
14791 |
|
| CD |
CD-58 3537 |
|
CP |
CP-58 2661 |
|
Distance |
1886.79 |
|
Distance ly |
6154.71 |
|
ORBITAL ELEMENTS
| Period (P) | 194.31d | ± 0.39 |
Periastron (T) | 54857.7d (2009.071y) | ± 5.4 |
Semi-major axis (a) | 1.224m | ± 0.028 |
| Eccentricity (e) | 0.217 | ± 0.011 |
Inclination (i) | 22° | ± 41 |
Longitude of periastron (ω) | 171° | ± 24 |
| Node (Ω) | 59° | ± 20 |
Notes | | |
Reference | LeB2017 | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
203.5 |
0.001 |
| 2001-01-01 |
143.8 |
0.001 |
| 2002-01-01 |
101.1 |
0.001 |
| 2003-01-01 |
70.4 |
0.001 |
| 2004-01-01 |
43.6 |
0.001 |
| 2005-01-01 |
14.7 |
0.001 |
| 2006-01-01 |
337.3 |
0.001 |
| 2007-01-01 |
285.7 |
0.001 |
| 2008-01-01 |
223.6 |
0.001 |
| 2009-01-01 |
160.8 |
0.001 |
| 2010-01-01 |
112.6 |
0.001 |
| 2011-01-01 |
79.2 |
0.001 |
| 2012-01-01 |
51.9 |
0.001 |
| 2013-01-01 |
24.3 |
0.001 |
| 2014-01-01 |
350.3 |
0.001 |
| 2015-01-01 |
303.3 |
0.001 |
| 2016-01-01 |
243.6 |
0.001 |
| 2017-01-01 |
179.5 |
0.001 |
| 2018-01-01 |
125.7 |
0.001 |
| 2019-01-01 |
88.6 |
0.001 |
| 2020-01-01 |
60.2 |
0.001 |
| 2021-01-01 |
33.2 |
0.001 |
| 2022-01-01 |
2.0 |
0.001 |
| 2023-01-01 |
319.6 |
0.001 |
| 2024-01-01 |
263.0 |
0.001 |
| 2025-01-01 |
199.3 |
0.001 |
| 2026-01-01 |
140.4 |
0.001 |
| 2027-01-01 |
98.8 |
0.001 |
| 2028-01-01 |
68.6 |
0.001 |
| 2029-01-01 |
41.8 |
0.001 |
| 2030-01-01 |
12.6 |
0.001 |
| 2031-01-01 |
334.4 |
0.001 |
| 2032-01-01 |
281.9 |
0.001 |
| 2033-01-01 |
219.4 |
0.001 |
| 2034-01-01 |
157.1 |
0.001 |
| 2035-01-01 |
110.1 |
0.001 |
| 2036-01-01 |
77.3 |
0.001 |
| 2037-01-01 |
50.2 |
0.001 |
| 2038-01-01 |
22.3 |
0.001 |
| 2039-01-01 |
347.7 |
0.001 |
| 2040-01-01 |
299.7 |
0.001 |
| 2041-01-01 |
239.4 |
0.001 |
| 2042-01-01 |
175.5 |
0.001 |
| 2043-01-01 |
122.8 |
0.001 |
| 2044-01-01 |
86.6 |
0.001 |
| 2045-01-01 |
58.4 |
0.001 |
| 2046-01-01 |
31.4 |
0.001 |
| 2047-01-01 |
359.6 |
0.001 |
| 2048-01-01 |
316.3 |
0.001 |
| 2049-01-01 |
259.0 |
0.001 |
| 2050-01-01 |
195.1 |
0.001 |
|
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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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