03477+2256 BOV 20
03h 47m 40.98s +22° 55' 47.8" P.A. 5.00 sep 0.1 mag 10.40,11.50 Sp K3V
| Coord 2000 |
03477+2256 |
|
Discov num |
BOV 20 |
|
Comp |
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Coord arcsec 2000 |
03 47 40.98 +22 55 47.8 |
|
| Date first |
1996 |
|
Date last |
1996 |
|
Obs |
1 |
|
| Pa first |
5 |
|
Pa last |
5.1 |
|
P.A. Now (θ) |
5.1° |
|
| Sep first |
0.1 |
|
Sep last |
0.09 |
|
Sep. Now (ρ) |
0.09" |
|
| Mag pri |
10.40 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
1.1 |
|
Spectral class |
K3V (yellow-orange) |
|
| Pri motion ra |
+018 |
|
Sec motion ra |
|
|
| Pri motion dec |
-044 |
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Sec motion dec |
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| Notes |
K
(K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Taurus |
|
Tycho2 |
1800-01604-1 |
|
Gaia DR2 |
64888129687348736 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 03474+2255 |
| coord_arcsec_2000 | 034722.88+225520.0 |
| Period (P) | 980.5113d (2.68y) | ± 83.2956 |
Periastron (T) | 48534.5234d (1991.759y) | ± 29.7977 |
Semi-major axis (a) | 5.88m | ± 2.01 |
| Eccentricity (e) | 0 | |
Inclination (i) | 54.82° | ± 12.44 |
Longitude of periastron (ω) | 0° | |
| Node (Ω) | 137.64° | ± 12.91 |
Notes | n | |
Reference | HIP1997d | |
| Equinox | | |
Last observation | 1991 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
152.8 |
0.006 |
| 2001-01-01 |
305.3 |
0.006 |
| 2002-01-01 |
84.5 |
0.004 |
| 2003-01-01 |
191.8 |
0.004 |
| 2004-01-01 |
330.4 |
0.006 |
| 2005-01-01 |
123.0 |
0.006 |
| 2006-01-01 |
259.5 |
0.004 |
| 2007-01-01 |
7.2 |
0.004 |
| 2008-01-01 |
148.2 |
0.006 |
| 2009-01-01 |
300.6 |
0.005 |
| 2010-01-01 |
74.3 |
0.004 |
| 2011-01-01 |
182.8 |
0.004 |
| 2012-01-01 |
326.0 |
0.006 |
| 2013-01-01 |
118.1 |
0.005 |
| 2014-01-01 |
248.7 |
0.004 |
| 2015-01-01 |
358.8 |
0.004 |
| 2016-01-01 |
143.9 |
0.006 |
| 2017-01-01 |
295.5 |
0.005 |
| 2018-01-01 |
62.9 |
0.003 |
| 2019-01-01 |
175.1 |
0.004 |
| 2020-01-01 |
321.8 |
0.006 |
| 2021-01-01 |
112.8 |
0.005 |
| 2022-01-01 |
236.9 |
0.003 |
| 2023-01-01 |
351.6 |
0.005 |
| 2024-01-01 |
139.7 |
0.006 |
| 2025-01-01 |
289.9 |
0.005 |
| 2026-01-01 |
50.7 |
0.003 |
| 2027-01-01 |
168.3 |
0.005 |
| 2028-01-01 |
317.6 |
0.006 |
| 2029-01-01 |
106.9 |
0.005 |
| 2030-01-01 |
224.4 |
0.003 |
|
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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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