07380-3208 B 1554 (PU Pup)
07h 37m 57.57s -32° 07' 52.2" P.A. 313.00 sep 0.3 mag 6.99,8.72 Sp F2V dist. 110.99 pc (362.05 l.y.)
| Coord 2000 |
07380-3208 |
|
Discov num |
B 1554 |
|
Comp |
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Coord arcsec 2000 |
07 37 57.57 -32 07 52.2 |
|
| Date first |
1930 |
|
Date last |
2021 |
|
Obs |
9 |
|
| Pa first |
331 |
|
Pa last |
312.7 |
|
P.A. Now (θ) |
312.7° |
|
| Sep first |
0.4 |
|
Sep last |
0.262 |
|
Sep. Now (ρ) |
0.262" |
|
| Mag pri |
6.99 |
|
Mag sec |
8.72 |
|
delta mag (ΔM) |
1.73 |
|
Spectral class |
F2V (yellow-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
|
|
| Pri motion dec |
-040 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
PU Pup |
|
Constellation |
Puppis |
|
SAO |
198212 |
|
HIP |
37145 |
|
| Tycho2 |
7109-03458-1 |
|
Gaia DR2 |
5592250627190607488 |
|
HD |
61431 |
|
GC |
10261 |
|
| CD |
CD-31 4833 |
|
CP |
CP-31 1720 |
|
Distance |
110.99 |
|
Distance ly |
362.05 |
|
ORBITAL ELEMENTS
| Period (P) | 113.8y | ± 5 |
Periastron (T) | 1984.2y | ± 3.3 |
Semi-major axis (a) | 0.228a | ± 0.011 |
| Eccentricity (e) | 0.254 | ± 0.031 |
Inclination (i) | 68.7° | ± 4.2 |
Longitude of periastron (ω) | 356.7° | ± 4.4 |
| Node (Ω) | 150.3° | ± 2.2 |
Notes | n | |
Reference | Msn2021c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
201.2 |
0.090 |
| 2001 |
208.7 |
0.085 |
| 2002 |
217.1 |
0.081 |
| 2003 |
226.1 |
0.079 |
| 2004 |
235.5 |
0.078 |
| 2005 |
244.9 |
0.079 |
| 2006 |
253.7 |
0.082 |
| 2007 |
261.8 |
0.087 |
| 2008 |
269.0 |
0.093 |
| 2009 |
275.3 |
0.099 |
| 2010 |
280.8 |
0.107 |
| 2011 |
285.5 |
0.115 |
| 2012 |
289.6 |
0.123 |
| 2013 |
293.1 |
0.132 |
| 2014 |
296.3 |
0.141 |
| 2015 |
299.0 |
0.149 |
| 2016 |
301.5 |
0.158 |
| 2017 |
303.6 |
0.167 |
| 2018 |
305.6 |
0.175 |
| 2019 |
307.4 |
0.183 |
| 2020 |
309.1 |
0.191 |
| 2021 |
310.6 |
0.199 |
| 2022 |
312.0 |
0.207 |
| 2023 |
313.3 |
0.214 |
| 2024 |
314.5 |
0.221 |
| 2025 |
315.7 |
0.228 |
| 2026 |
316.7 |
0.234 |
| 2027 |
317.8 |
0.240 |
| 2028 |
318.7 |
0.246 |
| 2029 |
319.7 |
0.251 |
| 2030 |
320.6 |
0.256 |
|
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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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