06186+6744 HU 1119 (HD 42891)
06h 18m 37.52s +67° 43' 42.5" P.A. 243.00 sep 0.3 mag 8.99,9.76 Sp K0 dist. 47.39 pc (154.59 l.y.)
| Coord 2000 |
06186+6744 |
|
Discov num |
HU 1119 |
|
Comp |
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Coord arcsec 2000 |
06 18 37.52 +67 43 42.5 |
|
| Date first |
1905 |
|
Date last |
1997 |
|
Obs |
14 |
|
| Pa first |
45 |
|
Pa last |
242.5 |
|
P.A. Now (θ) |
242.5° |
|
| Sep first |
0.3 |
|
Sep last |
0.26 |
|
Sep. Now (ρ) |
0.26" |
|
| Mag pri |
8.99 |
|
Mag sec |
9.76 |
|
delta mag (ΔM) |
0.77 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-126 |
|
Sec motion ra |
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| Pri motion dec |
-037 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 42891 |
|
Constellation |
Camelopardalis |
|
SAO |
13789 |
|
HIP |
29974 |
|
| Tycho2 |
4345-00558-1 |
|
Gaia DR2 |
1105242767712370560 |
|
HD |
42891 |
|
ADS |
4876 |
|
| BD |
BD+67 420 |
|
Distance |
47.39 |
|
Distance ly |
154.59 |
|
ORBITAL ELEMENTS
| Period (P) | 120.5y | |
Periastron (T) | 1976.5y | |
Semi-major axis (a) | 0.49a | |
| Eccentricity (e) | 0.38 | |
Inclination (i) | 85° | |
Longitude of periastron (ω) | 131° | |
| Node (Ω) | 50° | |
Notes | | |
Reference | Hei1998 | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
240.7 |
0.212 |
| 2001 |
242.0 |
0.196 |
| 2002 |
243.7 |
0.178 |
| 2003 |
245.7 |
0.161 |
| 2004 |
248.2 |
0.144 |
| 2005 |
251.4 |
0.126 |
| 2006 |
255.6 |
0.109 |
| 2007 |
261.3 |
0.093 |
| 2008 |
269.4 |
0.077 |
| 2009 |
281.3 |
0.064 |
| 2010 |
298.1 |
0.055 |
| 2011 |
319.3 |
0.051 |
| 2012 |
340.2 |
0.055 |
| 2013 |
356.5 |
0.065 |
| 2014 |
7.9 |
0.079 |
| 2015 |
15.8 |
0.094 |
| 2016 |
21.3 |
0.111 |
| 2017 |
25.4 |
0.128 |
| 2018 |
28.5 |
0.146 |
| 2019 |
30.9 |
0.164 |
| 2020 |
32.8 |
0.182 |
| 2021 |
34.4 |
0.199 |
| 2022 |
35.8 |
0.217 |
| 2023 |
36.9 |
0.234 |
| 2024 |
37.9 |
0.252 |
| 2025 |
38.7 |
0.269 |
| 2026 |
39.5 |
0.286 |
| 2027 |
40.2 |
0.302 |
| 2028 |
40.8 |
0.319 |
| 2029 |
41.3 |
0.335 |
| 2030 |
41.8 |
0.350 |
| 2031 |
42.2 |
0.365 |
| 2032 |
42.7 |
0.380 |
| 2033 |
43.0 |
0.395 |
| 2034 |
43.4 |
0.409 |
| 2035 |
43.7 |
0.423 |
| 2036 |
44.1 |
0.436 |
| 2037 |
44.3 |
0.449 |
| 2038 |
44.6 |
0.461 |
| 2039 |
44.9 |
0.473 |
| 2040 |
45.1 |
0.485 |
| 2041 |
45.4 |
0.496 |
| 2042 |
45.6 |
0.506 |
| 2043 |
45.8 |
0.516 |
| 2044 |
46.0 |
0.526 |
| 2045 |
46.3 |
0.535 |
| 2046 |
46.5 |
0.543 |
| 2047 |
46.6 |
0.550 |
| 2048 |
46.8 |
0.558 |
| 2049 |
47.0 |
0.564 |
| 2050 |
47.2 |
0.570 |
|
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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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