04518+1339 BU 552 AB (HD 30869)
04h 51m 49.92s +13° 39' 18.7" P.A. 276.00 sep 0.9 mag 6.41,8.89 Sp dF6 dist. 40.72 pc (132.83 l.y.)
| Coord 2000 |
04518+1339 |
|
Discov num |
BU 552 |
|
Comp |
AB |
|
Coord arcsec 2000 |
04 51 49.92 +13 39 18.7 |
|
| Date first |
1877 |
|
Date last |
2021 |
|
Obs |
214 |
|
| Pa first |
0 |
|
Pa last |
275.7 |
|
P.A. Now (θ) |
275.7° |
|
| Sep first |
0.8 |
|
Sep last |
0.859 |
|
Sep. Now (ρ) |
0.859" |
|
| Mag pri |
6.41 |
|
Mag sec |
8.89 |
|
delta mag (ΔM) |
2.48 |
|
Spectral class |
dF6 |
|
| Pri motion ra |
+090 |
|
Sec motion ra |
+090 |
|
| Pri motion dec |
-017 |
|
Sec motion dec |
-017 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
04518+1339 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 30869 |
94171 |
04 51 50 +13 39 19 |
BU 552 AB |
2021 |
214 |
276 |
0.9 |
6.41 |
8.89 |
2.48 |
Y |
<=== |
| Show |
|
94171 |
04 51 50 +13 39 19 |
BU 552 AC |
2015 |
6 |
225 |
49.6 |
6.41 |
12.40 |
5.99 |
|
|
| Show |
|
|
04 51 50 +13 39 18 |
BU 552 Ba,Bb |
2021 |
4 |
350 |
0.0 |
9.20 |
10.40 |
1.20 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 30869 |
|
Constellation |
Orion |
|
SAO |
94171 |
|
HIP |
22607 |
|
| Tycho2 |
0696-01789-1 |
|
Gaia DR2 |
3296520066926319104 |
|
HD |
30869 |
|
GC |
5923 |
|
| ADS |
3483 |
|
BD |
BD+13 728 |
|
Distance |
40.72 |
|
Distance ly |
132.83 |
|
ORBITAL ELEMENTS
| Period (P) | 97.7y | ± 1.4 |
Periastron (T) | 1982.193y | ± 0.054 |
Semi-major axis (a) | 0.7432a | ± 0.0066 |
| Eccentricity (e) | 0.592 | ± 0.003 |
Inclination (i) | 50.3° | ± 0.3 |
Longitude of periastron (ω) | 312.3° | ± 0.4 |
| Node (Ω) | 142.6° | ± 0.6 |
Notes | n | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
225.8 |
0.521 |
| 2001 |
229.5 |
0.536 |
| 2002 |
233.1 |
0.551 |
| 2003 |
236.4 |
0.566 |
| 2004 |
239.6 |
0.582 |
| 2005 |
242.6 |
0.598 |
| 2006 |
245.5 |
0.615 |
| 2007 |
248.2 |
0.631 |
| 2008 |
250.7 |
0.648 |
| 2009 |
253.2 |
0.665 |
| 2010 |
255.5 |
0.682 |
| 2011 |
257.7 |
0.699 |
| 2012 |
259.8 |
0.716 |
| 2013 |
261.7 |
0.733 |
| 2014 |
263.7 |
0.749 |
| 2015 |
265.5 |
0.766 |
| 2016 |
267.2 |
0.782 |
| 2017 |
268.9 |
0.798 |
| 2018 |
270.5 |
0.813 |
| 2019 |
272.1 |
0.828 |
| 2020 |
273.6 |
0.843 |
| 2021 |
275.0 |
0.857 |
| 2022 |
276.4 |
0.871 |
| 2023 |
277.8 |
0.884 |
| 2024 |
279.1 |
0.897 |
| 2025 |
280.4 |
0.910 |
| 2026 |
281.7 |
0.922 |
| 2027 |
282.9 |
0.933 |
| 2028 |
284.1 |
0.944 |
| 2029 |
285.2 |
0.954 |
| 2030 |
286.4 |
0.964 |
|
|
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 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 04518+1339 BU 552 A |
| coord_arcsec_2000 | 045149.92+133918.7 |
| Period (P) | 143.53d | |
Periastron (T) | 44248.396d (1980.024y) | |
Semi-major axis (a) | 4.4m | ± 0.5 |
| Eccentricity (e) | 0.61 | |
Inclination (i) | 94.4° | ± 5.3 |
Longitude of periastron (ω) | 205.9° | |
| Node (Ω) | 143.7° | ± 3.5 |
Notes | n | |
Reference | Ren2013 | |
| Equinox | 2000 | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
128.2 |
0.001 |
| 2001-01-01 |
142.8 |
0.007 |
| 2002-01-01 |
335.6 |
0.001 |
| 2003-01-01 |
141.9 |
0.007 |
| 2004-01-01 |
318.8 |
0.001 |
| 2005-01-01 |
140.9 |
0.006 |
| 2006-01-01 |
148.1 |
0.002 |
| 2007-01-01 |
139.7 |
0.005 |
| 2008-01-01 |
145.0 |
0.005 |
| 2009-01-01 |
137.4 |
0.003 |
| 2010-01-01 |
143.8 |
0.006 |
| 2011-01-01 |
130.0 |
0.001 |
| 2012-01-01 |
142.8 |
0.007 |
| 2013-01-01 |
339.7 |
0.001 |
| 2014-01-01 |
142.0 |
0.007 |
| 2015-01-01 |
320.9 |
0.001 |
| 2016-01-01 |
141.0 |
0.006 |
| 2017-01-01 |
148.8 |
0.002 |
| 2018-01-01 |
139.8 |
0.005 |
| 2019-01-01 |
145.2 |
0.005 |
| 2020-01-01 |
137.7 |
0.004 |
| 2021-01-01 |
143.9 |
0.006 |
| 2022-01-01 |
131.5 |
0.002 |
| 2023-01-01 |
142.9 |
0.007 |
| 2024-01-01 |
345.9 |
0.001 |
| 2025-01-01 |
142.1 |
0.007 |
| 2026-01-01 |
322.3 |
0.002 |
| 2027-01-01 |
141.1 |
0.006 |
| 2028-01-01 |
149.6 |
0.002 |
| 2029-01-01 |
139.9 |
0.005 |
| 2030-01-01 |
145.4 |
0.004 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
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|
|
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Measures: green=micrometric, blue=interferometric, purple=photographic |
|
