05165-2106 DON 97 (HD 34432)
05h 16m 30.54s -21° 06' 00.3" P.A. 190.00 sep 0.5 mag 8.07,9.81 Sp A4V dist. 142.45 pc (464.67 l.y.)
| Coord 2000 |
05165-2106 |
|
Discov num |
DON 97 |
|
Comp |
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Coord arcsec 2000 |
05 16 30.54 -21 06 00.3 |
|
| Date first |
1930 |
|
Date last |
2019 |
|
Obs |
16 |
|
| Pa first |
3 |
|
Pa last |
189.7 |
|
P.A. Now (θ) |
189.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.456 |
|
Sep. Now (ρ) |
0.456" |
|
| Mag pri |
8.07 |
|
Mag sec |
9.81 |
|
delta mag (ΔM) |
1.74 |
|
Spectral class |
A4V (white) |
|
| Pri motion ra |
+006 |
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Sec motion ra |
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| Pri motion dec |
+016 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 34432 |
|
Constellation |
Lepus |
|
SAO |
170260 |
|
HIP |
24592 |
|
| Tycho2 |
5914-00943-1 |
|
Gaia DR2 |
2962875599942621824 |
|
HD |
34432 |
|
BD |
BD-21 1119 |
|
| Distance |
142.45 |
|
Distance ly |
464.67 |
|
ORBITAL ELEMENTS
| Period (P) | 258y | |
Periastron (T) | 1952.8y | |
Semi-major axis (a) | 0.457a | |
| Eccentricity (e) | 0.264 | |
Inclination (i) | 133.8° | |
Longitude of periastron (ω) | 205.7° | |
| Node (Ω) | 165.4° | |
Notes | n | |
Reference | Tok2014a | |
| Equinox | 2000 | |
Last observation | 2013 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
213.4 |
0.346 |
| 2001 |
211.8 |
0.352 |
| 2002 |
210.3 |
0.357 |
| 2003 |
208.8 |
0.363 |
| 2004 |
207.3 |
0.369 |
| 2005 |
205.9 |
0.375 |
| 2006 |
204.5 |
0.381 |
| 2007 |
203.2 |
0.386 |
| 2008 |
201.9 |
0.392 |
| 2009 |
200.7 |
0.398 |
| 2010 |
199.5 |
0.403 |
| 2011 |
198.3 |
0.409 |
| 2012 |
197.1 |
0.415 |
| 2013 |
196.0 |
0.420 |
| 2014 |
194.9 |
0.426 |
| 2015 |
193.9 |
0.431 |
| 2016 |
192.8 |
0.436 |
| 2017 |
191.8 |
0.441 |
| 2018 |
190.8 |
0.447 |
| 2019 |
189.9 |
0.452 |
| 2020 |
188.9 |
0.457 |
| 2021 |
188.0 |
0.461 |
| 2022 |
187.1 |
0.466 |
| 2023 |
186.2 |
0.471 |
| 2024 |
185.4 |
0.475 |
| 2025 |
184.5 |
0.480 |
| 2026 |
183.7 |
0.484 |
| 2027 |
182.8 |
0.488 |
| 2028 |
182.0 |
0.493 |
| 2029 |
181.2 |
0.497 |
| 2030 |
180.5 |
0.501 |
|
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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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