08317-2601 I 807 (HD 72397)
08h 31m 39.91s -26° 00' 58.3" P.A. 161.00 sep 0.4 mag 8.12,9.02 Sp A2IV
| Coord 2000 |
08317-2601 |
|
Discov num |
I 807 |
|
Comp |
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Coord arcsec 2000 |
08 31 39.91 -26 00 58.3 |
|
| Date first |
1910 |
|
Date last |
2014 |
|
Obs |
18 |
|
| Pa first |
300 |
|
Pa last |
161.1 |
|
P.A. Now (θ) |
161.1° |
|
| Sep first |
0.4 |
|
Sep last |
0.441 |
|
Sep. Now (ρ) |
0.441" |
|
| Mag pri |
8.12 |
|
Mag sec |
9.02 |
|
delta mag (ΔM) |
0.9 |
|
Spectral class |
A2IV (white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
+003 |
|
Sec motion dec |
+003 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 72397 |
|
Constellation |
Pyxis |
|
SAO |
176008 |
|
Tycho2 |
6574-03158-1 |
|
| Gaia DR2 |
5646950299882914176 |
|
HD |
72397 |
|
ADS |
6865 |
|
ORBITAL ELEMENTS
| Period (P) | 720.66y | |
Periastron (T) | 1936.16y | |
Semi-major axis (a) | 0.631a | |
| Eccentricity (e) | 0.37 | |
Inclination (i) | 129.4° | |
Longitude of periastron (ω) | 244.5° | |
| Node (Ω) | 134.2° | |
Notes | | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
170.8 |
0.383 |
| 2001 |
170.0 |
0.387 |
| 2002 |
169.3 |
0.391 |
| 2003 |
168.5 |
0.395 |
| 2004 |
167.8 |
0.399 |
| 2005 |
167.0 |
0.404 |
| 2006 |
166.3 |
0.408 |
| 2007 |
165.6 |
0.412 |
| 2008 |
164.9 |
0.416 |
| 2009 |
164.3 |
0.420 |
| 2010 |
163.6 |
0.424 |
| 2011 |
163.0 |
0.428 |
| 2012 |
162.3 |
0.432 |
| 2013 |
161.7 |
0.436 |
| 2014 |
161.1 |
0.440 |
| 2015 |
160.5 |
0.444 |
| 2016 |
159.9 |
0.448 |
| 2017 |
159.3 |
0.452 |
| 2018 |
158.8 |
0.456 |
| 2019 |
158.2 |
0.460 |
| 2020 |
157.6 |
0.464 |
| 2021 |
157.1 |
0.468 |
| 2022 |
156.6 |
0.471 |
| 2023 |
156.0 |
0.475 |
| 2024 |
155.5 |
0.479 |
| 2025 |
155.0 |
0.483 |
| 2026 |
154.5 |
0.487 |
| 2027 |
154.0 |
0.490 |
| 2028 |
153.6 |
0.494 |
| 2029 |
153.1 |
0.498 |
| 2030 |
152.6 |
0.501 |
|
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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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