08231+2001 HO 525 AB (HD 70492)
08h 23m 03.71s +20° 01' 05.7" P.A. 175.00 sep 0.5 mag 9.83,9.89 Sp F5 dist. 139.86 pc (456.22 l.y.)
| Coord 2000 |
08231+2001 |
|
Discov num |
HO 525 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 23 03.71 +20 01 05.7 |
|
| Date first |
1895 |
|
Date last |
2019 |
|
Obs |
45 |
|
| Pa first |
151 |
|
Pa last |
174.8 |
|
P.A. Now (θ) |
174.8° |
|
| Sep first |
0.4 |
|
Sep last |
0.46 |
|
Sep. Now (ρ) |
0.46" |
|
| Mag pri |
9.83 |
|
Mag sec |
9.89 |
|
delta mag (ΔM) |
0.06 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
|
|
| Pri motion dec |
-014 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
08231+2001 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 70492 |
80143 |
08 23 04 +20 01 06 |
HO 525 AB |
2019 |
45 |
175 |
0.5 |
9.83 |
9.89 |
0.06 |
Y |
<=== |
| Show |
|
80143 |
08 23 04 +20 01 06 |
HO 525 AC |
2015 |
6 |
160 |
38.6 |
9.83 |
13.30 |
3.47 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 70492 |
|
Constellation |
Cancer |
|
SAO |
80143 |
|
HIP |
41098 |
|
| Tycho2 |
1386-00063-1 |
|
HD |
70492 |
|
ADS |
6776 |
|
BD |
BD+20 2070 |
|
| Distance |
139.86 |
|
Distance ly |
456.22 |
|
ORBITAL ELEMENTS
| Period (P) | 935y | |
Periastron (T) | 1967y | |
Semi-major axis (a) | 0.84a | |
| Eccentricity (e) | 0.7 | |
Inclination (i) | 39.1° | |
Longitude of periastron (ω) | 115.7° | |
| Node (Ω) | 144.9° | |
Notes | | |
Reference | FMR2013e | |
| Equinox | 2000 | |
Last observation | 2012 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
334.4 |
0.365 |
| 2001 |
335.5 |
0.369 |
| 2002 |
336.6 |
0.374 |
| 2003 |
337.7 |
0.378 |
| 2004 |
338.7 |
0.383 |
| 2005 |
339.7 |
0.387 |
| 2006 |
340.7 |
0.391 |
| 2007 |
341.7 |
0.396 |
| 2008 |
342.7 |
0.400 |
| 2009 |
343.6 |
0.404 |
| 2010 |
344.5 |
0.408 |
| 2011 |
345.4 |
0.412 |
| 2012 |
346.3 |
0.416 |
| 2013 |
347.1 |
0.420 |
| 2014 |
348.0 |
0.424 |
| 2015 |
348.8 |
0.428 |
| 2016 |
349.6 |
0.432 |
| 2017 |
350.4 |
0.436 |
| 2018 |
351.2 |
0.440 |
| 2019 |
352.0 |
0.443 |
| 2020 |
352.7 |
0.447 |
| 2021 |
353.5 |
0.451 |
| 2022 |
354.2 |
0.454 |
| 2023 |
355.0 |
0.458 |
| 2024 |
355.7 |
0.462 |
| 2025 |
356.4 |
0.465 |
| 2026 |
357.1 |
0.469 |
| 2027 |
357.7 |
0.472 |
| 2028 |
358.4 |
0.476 |
| 2029 |
359.1 |
0.479 |
| 2030 |
359.7 |
0.483 |
|
|
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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