04478+5318 HU 612 (HD 30136)
04h 47m 49.54s +53° 18' 03.9" P.A. 2.00 sep 0.8 mag 7.06,8.54 Sp F2 dist. 126.58 pc (412.9 l.y.)
| Coord 2000 |
04478+5318 |
|
Discov num |
HU 612 |
|
Comp |
|
|
Coord arcsec 2000 |
04 47 49.54 +53 18 03.9 |
|
| Date first |
1902 |
|
Date last |
2014 |
|
Obs |
42 |
|
| Pa first |
198 |
|
Pa last |
1.8 |
|
P.A. Now (θ) |
1.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.75 |
|
Sep. Now (ρ) |
0.75" |
|
| Mag pri |
7.06 |
|
Mag sec |
8.54 |
|
delta mag (ΔM) |
1.48 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
+016 |
|
Sec motion ra |
+016 |
|
| Pri motion dec |
-078 |
|
Sec motion dec |
-078 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 30136 |
|
Constellation |
Camelopardalis |
|
SAO |
24830 |
|
HIP |
22279 |
|
| Tycho2 |
3733-01017-1 |
|
Gaia DR2 |
273102062526264576 |
|
HD |
30136 |
|
GC |
5812 |
|
| ADS |
3434 |
|
BD |
BD+53 813 |
|
Distance |
126.58 |
|
Distance ly |
412.9 |
|
ORBITAL ELEMENTS
| Period (P) | 233.7y | |
Periastron (T) | 1899.6y | |
Semi-major axis (a) | 0.519a | |
| Eccentricity (e) | 0.541 | |
Inclination (i) | 53.6° | |
Longitude of periastron (ω) | 146.1° | |
| Node (Ω) | 23.5° | |
Notes | | |
Reference | Doc2019f | |
| Equinox | 2000 | |
Last observation | 2012 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
354.6 |
0.659 |
| 2001 |
355.0 |
0.663 |
| 2002 |
355.5 |
0.667 |
| 2003 |
356.0 |
0.671 |
| 2004 |
356.4 |
0.675 |
| 2005 |
356.9 |
0.679 |
| 2006 |
357.3 |
0.682 |
| 2007 |
357.8 |
0.686 |
| 2008 |
358.2 |
0.689 |
| 2009 |
358.6 |
0.693 |
| 2010 |
359.1 |
0.696 |
| 2011 |
359.5 |
0.699 |
| 2012 |
359.9 |
0.702 |
| 2013 |
0.3 |
0.705 |
| 2014 |
0.8 |
0.708 |
| 2015 |
1.2 |
0.711 |
| 2016 |
1.6 |
0.713 |
| 2017 |
2.0 |
0.716 |
| 2018 |
2.4 |
0.718 |
| 2019 |
2.8 |
0.721 |
| 2020 |
3.2 |
0.723 |
| 2021 |
3.6 |
0.725 |
| 2022 |
4.0 |
0.727 |
| 2023 |
4.4 |
0.729 |
| 2024 |
4.7 |
0.731 |
| 2025 |
5.1 |
0.733 |
| 2026 |
5.5 |
0.734 |
| 2027 |
5.9 |
0.736 |
| 2028 |
6.3 |
0.737 |
| 2029 |
6.7 |
0.738 |
| 2030 |
7.0 |
0.739 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
