06364+2717 STT 149 (HD 46780)
06h 36m 26.26s +27° 16' 42.2" P.A. 268.00 sep 0.7 mag 7.14,8.97 Sp dG2 dist. 33.11 pc (108 l.y.)
| Coord 2000 |
06364+2717 |
|
Discov num |
STT 149 |
|
Comp |
|
|
Coord arcsec 2000 |
06 36 26.26 +27 16 42.2 |
|
| Date first |
1843 |
|
Date last |
2021 |
|
Obs |
173 |
|
| Pa first |
24 |
|
Pa last |
268 |
|
P.A. Now (θ) |
274.3° |
|
| Sep first |
0.6 |
|
Sep last |
0.68 |
|
Sep. Now (ρ) |
0.717" |
|
| Mag pri |
7.14 |
|
Mag sec |
8.97 |
|
delta mag (ΔM) |
1.83 |
|
Spectral class |
dG2 |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
+007 |
|
| Pri motion dec |
-098 |
|
Sec motion dec |
-098 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 46780 |
|
Constellation |
Gemini |
|
SAO |
78540 |
|
HIP |
31568 |
|
| Tycho2 |
1888-01386-1 |
|
Gaia DR2 |
3385944618922660736 |
|
HD |
46780 |
|
GC |
8589 |
|
| ADS |
5234 |
|
BD |
BD+27 1164 |
|
Distance |
33.11 |
|
Distance ly |
108 |
|
ORBITAL ELEMENTS
| Period (P) | 118.9y | |
Periastron (T) | 1923.2y | |
Semi-major axis (a) | 0.85a | |
| Eccentricity (e) | 0.727 | |
Inclination (i) | 112.1° | |
Longitude of periastron (ω) | 277.7° | |
| Node (Ω) | 73.8° | |
Notes | n | |
Reference | Hei1993d | |
| Equinox | 2000 | |
Last observation | 1991 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
299.3 |
0.683 |
| 2001 |
298.1 |
0.688 |
| 2002 |
296.9 |
0.694 |
| 2003 |
295.7 |
0.699 |
| 2004 |
294.6 |
0.704 |
| 2005 |
293.4 |
0.708 |
| 2006 |
292.3 |
0.713 |
| 2007 |
291.2 |
0.717 |
| 2008 |
290.1 |
0.721 |
| 2009 |
289.0 |
0.725 |
| 2010 |
288.0 |
0.728 |
| 2011 |
286.9 |
0.731 |
| 2012 |
285.9 |
0.733 |
| 2013 |
284.8 |
0.735 |
| 2014 |
283.8 |
0.736 |
| 2015 |
282.7 |
0.737 |
| 2016 |
281.7 |
0.737 |
| 2017 |
280.6 |
0.737 |
| 2018 |
279.6 |
0.736 |
| 2019 |
278.5 |
0.734 |
| 2020 |
277.5 |
0.731 |
| 2021 |
276.4 |
0.727 |
| 2022 |
275.4 |
0.723 |
| 2023 |
274.3 |
0.717 |
| 2024 |
273.2 |
0.710 |
| 2025 |
272.0 |
0.702 |
| 2026 |
270.9 |
0.692 |
| 2027 |
269.7 |
0.681 |
| 2028 |
268.4 |
0.668 |
| 2029 |
267.1 |
0.653 |
| 2030 |
265.8 |
0.636 |
|
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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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