15432+1340 BU 619 AB (HD 140438)
15h 43m 10.53s +13° 40' 03.7" P.A. 357.00 sep 0.7 mag 6.95,7.94 Sp G4IV dist. 173.31 pc (565.34 l.y.)
Coord 2000 |
15432+1340 |
|
Discov num |
BU 619 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 43 10.53 +13 40 03.7 |
|
Date first |
1878 |
|
Date last |
2019 |
|
Obs |
163 |
|
Pa first |
357 |
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Pa last |
357.1 |
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P.A. Now (θ) |
357.1° |
|
Sep first |
0.4 |
|
Sep last |
0.651 |
|
Sep. Now (ρ) |
0.651" |
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Mag pri |
6.95 |
|
Mag sec |
7.94 |
|
delta mag (ΔM) |
0.99 |
|
Spectral class |
G4IV (yellow) |
|
Pri motion ra |
-016 |
|
Sec motion ra |
-016 |
|
Pri motion dec |
-030 |
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Sec motion dec |
-030 |
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
15432+1340 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 140438 |
101699 |
15 43 11 +13 40 04 |
BU 619 AB |
2019 |
163 |
357 |
0.7 |
6.95 |
7.94 |
0.99 |
Y |
<=== |
Show |
|
|
15 43 11 +13 40 04 |
BU 619 BC |
2019 |
3 |
47 |
0.3 |
8.30 |
9.50 |
1.20 |
|
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 140438 |
|
Constellation |
Serpens |
|
SAO |
101699 |
|
HIP |
76985 |
|
Tycho2 |
0942-00653-1 |
|
HD |
140438 |
|
HR |
5850 |
|
GC |
21132 |
|
ADS |
9758 |
|
BD |
BD+14 2922 |
|
Distance |
173.31 |
|
Distance ly |
565.34 |
|
SUSPECTED ORBITAL ELEMENTS
Identifier | 15432+1340 BU 619 A |
coord_arcsec_2000 | 154310.53+134003.7 |
Period (P) | 75.2y | |
Periastron (T) | 1993.46y | |
Semi-major axis (a) | 0.132a | |
Eccentricity (e) | 0.938 | |
Inclination (i) | 76.5° | |
Longitude of periastron (ω) | 258.3° | |
Node (Ω) | 29.7° | |
Notes | | |
Reference | Zir2014b | |
Equinox | 2000 | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
48.9 |
0.071 |
2001 |
50.2 |
0.075 |
2002 |
51.3 |
0.077 |
2003 |
52.4 |
0.080 |
2004 |
53.5 |
0.082 |
2005 |
54.5 |
0.083 |
2006 |
55.4 |
0.085 |
2007 |
56.3 |
0.086 |
2008 |
57.2 |
0.087 |
2009 |
58.1 |
0.088 |
2010 |
59.0 |
0.089 |
2011 |
59.8 |
0.089 |
2012 |
60.7 |
0.089 |
2013 |
61.5 |
0.090 |
2014 |
62.4 |
0.090 |
2015 |
63.2 |
0.090 |
2016 |
64.0 |
0.090 |
2017 |
64.9 |
0.089 |
2018 |
65.7 |
0.089 |
2019 |
66.6 |
0.089 |
2020 |
67.5 |
0.088 |
2021 |
68.3 |
0.088 |
2022 |
69.2 |
0.087 |
2023 |
70.1 |
0.086 |
2024 |
71.0 |
0.085 |
2025 |
72.0 |
0.085 |
2026 |
72.9 |
0.084 |
2027 |
73.9 |
0.083 |
2028 |
74.9 |
0.082 |
2029 |
75.9 |
0.081 |
2030 |
77.0 |
0.079 |
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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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