09522+0807 A 2762 (HD 85474)
09h 52m 11.82s +08° 06' 45.2" P.A. 244.00 sep 0.4 mag 8.85,11.90 Sp G5 dist. 60.02 pc (195.79 l.y.)
| Coord 2000 |
09522+0807 |
|
Discov num |
A 2762 |
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Comp |
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Coord arcsec 2000 |
09 52 11.82 +08 06 45.2 |
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| Date first |
1914 |
|
Date last |
2018 |
|
Obs |
13 |
|
| Pa first |
293 |
|
Pa last |
244 |
|
P.A. Now (θ) |
244° |
|
| Sep first |
1.6 |
|
Sep last |
0.399 |
|
Sep. Now (ρ) |
0.399" |
|
| Mag pri |
8.85 |
|
Mag sec |
11.90 |
|
delta mag (ΔM) |
3.05 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-054 |
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Sec motion ra |
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| Pri motion dec |
-077 |
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Sec motion dec |
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| Notes |
C
(Has orbit and linear solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 85474 |
|
Constellation |
Leo |
|
SAO |
117957 |
|
HIP |
48412 |
|
| Tycho2 |
0828-01883-1 |
|
Gaia DR2 |
3877904359283357440 |
|
HD |
85474 |
|
BD |
BD+08 2281 |
|
| Distance |
60.02 |
|
Distance ly |
195.79 |
|
ORBITAL ELEMENTS
| Period (P) | 640y | |
Periastron (T) | 2092.6y | |
Semi-major axis (a) | 1.603a | |
| Eccentricity (e) | 0.6 | |
Inclination (i) | 105.8° | |
Longitude of periastron (ω) | 17.3° | |
| Node (Ω) | 131.1° | |
Notes | | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
268.8 |
0.597 |
| 2001 |
267.8 |
0.585 |
| 2002 |
266.9 |
0.573 |
| 2003 |
265.9 |
0.561 |
| 2004 |
264.9 |
0.549 |
| 2005 |
263.8 |
0.537 |
| 2006 |
262.7 |
0.525 |
| 2007 |
261.6 |
0.513 |
| 2008 |
260.3 |
0.502 |
| 2009 |
259.0 |
0.490 |
| 2010 |
257.7 |
0.479 |
| 2011 |
256.3 |
0.468 |
| 2012 |
254.8 |
0.458 |
| 2013 |
253.3 |
0.447 |
| 2014 |
251.7 |
0.437 |
| 2015 |
250.0 |
0.427 |
| 2016 |
248.2 |
0.418 |
| 2017 |
246.4 |
0.409 |
| 2018 |
244.5 |
0.400 |
| 2019 |
242.5 |
0.391 |
| 2020 |
240.4 |
0.384 |
| 2021 |
238.2 |
0.376 |
| 2022 |
235.9 |
0.369 |
| 2023 |
233.6 |
0.363 |
| 2024 |
231.1 |
0.357 |
| 2025 |
228.6 |
0.351 |
| 2026 |
226.0 |
0.347 |
| 2027 |
223.4 |
0.343 |
| 2028 |
220.7 |
0.340 |
| 2029 |
217.9 |
0.337 |
| 2030 |
215.1 |
0.335 |
|
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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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