04242+1445 HDS 564 (V895 Tau)
04h 24m 12.40s +14° 45' 29.8" P.A. 231.00 sep 0.5 mag 7.78,10.80 Sp G1V dist. 43.92 pc (143.27 l.y.)
| Coord 2000 |
04242+1445 |
|
Discov num |
HDS 564 |
|
Comp |
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Coord arcsec 2000 |
04 24 12.40 +14 45 29.8 |
|
| Date first |
1991 |
|
Date last |
2019 |
|
Obs |
27 |
|
| Pa first |
189 |
|
Pa last |
230.8 |
|
P.A. Now (θ) |
230.8° |
|
| Sep first |
0.3 |
|
Sep last |
0.534 |
|
Sep. Now (ρ) |
0.534" |
|
| Mag pri |
7.78 |
|
Mag sec |
10.80 |
|
delta mag (ΔM) |
3.02 |
|
Spectral class |
G1V (yellow) |
|
| Pri motion ra |
+097 |
|
Sec motion ra |
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| Pri motion dec |
-034 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V895 Tau |
|
Constellation |
Taurus |
|
SAO |
93910 |
|
HIP |
20553 |
|
| Tycho2 |
0680-00146-1 |
|
Gaia DR2 |
3311151229500925952 |
|
HD |
27836 |
|
BD |
BD+14 693 |
|
| Distance |
43.92 |
|
Distance ly |
143.27 |
|
ORBITAL ELEMENTS
| Period (P) | 111.75y | |
Periastron (T) | 1995.33y | |
Semi-major axis (a) | 0.731a | |
| Eccentricity (e) | 0.97 | |
Inclination (i) | 116.1° | |
Longitude of periastron (ω) | 108.1° | |
| Node (Ω) | 162.6° | |
Notes | n | |
Reference | Zir2008 | |
| Equinox | 2000 | |
Last observation | 2004 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
260.6 |
0.195 |
| 2001 |
256.3 |
0.219 |
| 2002 |
252.8 |
0.242 |
| 2003 |
249.9 |
0.264 |
| 2004 |
247.5 |
0.285 |
| 2005 |
245.4 |
0.305 |
| 2006 |
243.5 |
0.325 |
| 2007 |
241.9 |
0.343 |
| 2008 |
240.4 |
0.361 |
| 2009 |
239.0 |
0.379 |
| 2010 |
237.8 |
0.395 |
| 2011 |
236.7 |
0.411 |
| 2012 |
235.6 |
0.427 |
| 2013 |
234.7 |
0.442 |
| 2014 |
233.8 |
0.457 |
| 2015 |
232.9 |
0.471 |
| 2016 |
232.1 |
0.485 |
| 2017 |
231.3 |
0.498 |
| 2018 |
230.6 |
0.511 |
| 2019 |
229.9 |
0.523 |
| 2020 |
229.3 |
0.536 |
| 2021 |
228.6 |
0.547 |
| 2022 |
228.0 |
0.559 |
| 2023 |
227.5 |
0.570 |
| 2024 |
226.9 |
0.580 |
| 2025 |
226.4 |
0.590 |
| 2026 |
225.8 |
0.600 |
| 2027 |
225.3 |
0.610 |
| 2028 |
224.8 |
0.619 |
| 2029 |
224.4 |
0.628 |
| 2030 |
223.9 |
0.637 |
|
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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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