06575+0253 A 2681 (HD 51449)
06h 57m 29.02s +02° 53' 16.8" P.A. 310.00 sep 0.5 mag 9.46,7.71 Sp A5 dist. 124.69 pc (406.74 l.y.)
| Coord 2000 |
06575+0253 |
|
Discov num |
A 2681 |
|
Comp |
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Coord arcsec 2000 |
06 57 29.02 +02 53 16.8 |
|
| Date first |
1913 |
|
Date last |
2018 |
|
Obs |
28 |
|
| Pa first |
114 |
|
Pa last |
310.4 |
|
P.A. Now (θ) |
310.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.495 |
|
Sep. Now (ρ) |
0.495" |
|
| Mag pri |
9.46 |
|
Mag sec |
7.71 |
|
delta mag (ΔM) |
1.75 |
|
Spectral class |
A5 (white) |
|
| Pri motion ra |
-028 |
|
Sec motion ra |
-028 |
|
| Pri motion dec |
+000 |
|
Sec motion dec |
+000 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 51449 |
|
Constellation |
Monoceros |
|
SAO |
114683 |
|
HIP |
33474 |
|
| Tycho2 |
0153-02233-1 |
|
HD |
51449 |
|
ADS |
5625 |
|
BD |
BD+03 1477 |
|
| Distance |
124.69 |
|
Distance ly |
406.74 |
|
ORBITAL ELEMENTS
| Period (P) | 208.33y | |
Periastron (T) | 1938.47y | |
Semi-major axis (a) | 0.273a | |
| Eccentricity (e) | 0.793 | |
Inclination (i) | 119.4° | |
Longitude of periastron (ω) | 339.1° | |
| Node (Ω) | 118.2° | |
Notes | | |
Reference | USN2007b | |
| Equinox | 2000 | |
Last observation | 1997 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
317.9 |
0.371 |
| 2001 |
317.6 |
0.374 |
| 2002 |
317.3 |
0.378 |
| 2003 |
317.1 |
0.382 |
| 2004 |
316.8 |
0.385 |
| 2005 |
316.5 |
0.388 |
| 2006 |
316.3 |
0.392 |
| 2007 |
316.0 |
0.395 |
| 2008 |
315.8 |
0.398 |
| 2009 |
315.6 |
0.401 |
| 2010 |
315.3 |
0.404 |
| 2011 |
315.1 |
0.407 |
| 2012 |
314.9 |
0.410 |
| 2013 |
314.6 |
0.413 |
| 2014 |
314.4 |
0.416 |
| 2015 |
314.2 |
0.418 |
| 2016 |
314.0 |
0.421 |
| 2017 |
313.7 |
0.424 |
| 2018 |
313.5 |
0.426 |
| 2019 |
313.3 |
0.429 |
| 2020 |
313.1 |
0.431 |
| 2021 |
312.9 |
0.433 |
| 2022 |
312.7 |
0.435 |
| 2023 |
312.5 |
0.437 |
| 2024 |
312.3 |
0.439 |
| 2025 |
312.1 |
0.441 |
| 2026 |
311.9 |
0.443 |
| 2027 |
311.7 |
0.445 |
| 2028 |
311.5 |
0.447 |
| 2029 |
311.3 |
0.449 |
| 2030 |
311.1 |
0.450 |
|
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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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