09005+3225 HU 718 (HD 76975)
09h 00m 30.68s +32° 25' 03.2" P.A. 42.00 sep 0.2 mag 9.30,9.49 Sp G5 dist. 89.05 pc (290.48 l.y.)
| Coord 2000 |
09005+3225 |
|
Discov num |
HU 718 |
|
Comp |
|
|
Coord arcsec 2000 |
09 00 30.68 +32 25 03.2 |
|
| Date first |
1904 |
|
Date last |
2013 |
|
Obs |
38 |
|
| Pa first |
201 |
|
Pa last |
42.4 |
|
P.A. Now (θ) |
217.2° |
|
| Sep first |
0.5 |
|
Sep last |
0.224 |
|
Sep. Now (ρ) |
0.201" |
|
| Mag pri |
9.30 |
|
Mag sec |
9.49 |
|
delta mag (ΔM) |
0.19 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+046 |
|
Sec motion ra |
|
|
| Pri motion dec |
-018 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 76975 |
|
Constellation |
Cancer |
|
SAO |
61192 |
|
HIP |
44230 |
|
| Tycho2 |
2492-00013-1 |
|
Gaia DR2 |
712110323617683712 |
|
HD |
76975 |
|
ADS |
7124 |
|
| BD |
BD+32 1826 |
|
Distance |
89.05 |
|
Distance ly |
290.48 |
|
ORBITAL ELEMENTS
| Period (P) | 139.765y | ± 1.185 |
Periastron (T) | 2019.142y | ± 0.887 |
Semi-major axis (a) | 0.552a | ± 0.061 |
| Eccentricity (e) | 0.783 | ± 0.036 |
Inclination (i) | 102.1° | ± 2.4 |
Longitude of periastron (ω) | 79.3° | ± 2.3 |
| Node (Ω) | 34.3° | ± 6.5 |
Notes | n | |
Reference | FMR2015b | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
58.2 |
0.272 |
| 2001 |
56.8 |
0.275 |
| 2002 |
55.5 |
0.278 |
| 2003 |
54.2 |
0.280 |
| 2004 |
52.9 |
0.281 |
| 2005 |
51.6 |
0.282 |
| 2006 |
50.3 |
0.282 |
| 2007 |
49.0 |
0.281 |
| 2008 |
47.7 |
0.280 |
| 2009 |
46.4 |
0.277 |
| 2010 |
45.0 |
0.273 |
| 2011 |
43.6 |
0.266 |
| 2012 |
42.2 |
0.258 |
| 2013 |
40.5 |
0.246 |
| 2014 |
38.8 |
0.231 |
| 2015 |
36.7 |
0.211 |
| 2016 |
34.0 |
0.184 |
| 2017 |
30.3 |
0.147 |
| 2018 |
23.3 |
0.098 |
| 2019 |
357.3 |
0.040 |
| 2020 |
248.0 |
0.046 |
| 2021 |
226.5 |
0.105 |
| 2022 |
220.4 |
0.157 |
| 2023 |
217.2 |
0.201 |
| 2024 |
215.0 |
0.237 |
| 2025 |
213.4 |
0.267 |
| 2026 |
212.1 |
0.293 |
| 2027 |
211.0 |
0.315 |
| 2028 |
210.0 |
0.334 |
| 2029 |
209.1 |
0.350 |
| 2030 |
208.3 |
0.365 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
