00122+4647 A 802 (HD 764)
00h 12m 10.31s +46° 46' 29.7" P.A. 138.00 sep 0.2 mag 9.70,10.35 Sp F8 dist. 267.38 pc (872.19 l.y.)
| Coord 2000 |
00122+4647 |
|
Discov num |
A 802 |
|
Comp |
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Coord arcsec 2000 |
00 12 10.31 +46 46 29.7 |
|
| Date first |
1904 |
|
Date last |
1991 |
|
Obs |
15 |
|
| Pa first |
338 |
|
Pa last |
138 |
|
P.A. Now (θ) |
138° |
|
| Sep first |
0.2 |
|
Sep last |
0.158 |
|
Sep. Now (ρ) |
0.158" |
|
| Mag pri |
9.70 |
|
Mag sec |
10.35 |
|
delta mag (ΔM) |
0.65 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+061 |
|
Sec motion ra |
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|
| Pri motion dec |
+006 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 764 |
|
Constellation |
Andromeda |
|
SAO |
36152 |
|
HIP |
984 |
|
| Tycho2 |
3247-00446-1 |
|
Gaia DR2 |
392942198522189184 |
|
HD |
764 |
|
ADS |
149 |
|
| BD |
BD+45 23 |
|
Distance |
267.38 |
|
Distance ly |
872.19 |
|
ORBITAL ELEMENTS
| Period (P) | 269.52y | |
Periastron (T) | 1972.51y | |
Semi-major axis (a) | 0.26a | |
| Eccentricity (e) | 0.511 | |
Inclination (i) | 108.8° | |
Longitude of periastron (ω) | 266.6° | |
| Node (Ω) | 125.6° | |
Notes | n | |
Reference | Msn2001c | |
| Equinox | 2000 | |
Last observation | 1991 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
125.4 |
0.199 |
| 2001 |
124.8 |
0.203 |
| 2002 |
124.2 |
0.206 |
| 2003 |
123.6 |
0.209 |
| 2004 |
123.0 |
0.212 |
| 2005 |
122.5 |
0.214 |
| 2006 |
122.0 |
0.217 |
| 2007 |
121.4 |
0.219 |
| 2008 |
120.9 |
0.221 |
| 2009 |
120.4 |
0.223 |
| 2010 |
119.9 |
0.225 |
| 2011 |
119.4 |
0.226 |
| 2012 |
118.9 |
0.228 |
| 2013 |
118.5 |
0.229 |
| 2014 |
118.0 |
0.231 |
| 2015 |
117.5 |
0.232 |
| 2016 |
117.0 |
0.233 |
| 2017 |
116.6 |
0.233 |
| 2018 |
116.1 |
0.234 |
| 2019 |
115.7 |
0.235 |
| 2020 |
115.2 |
0.235 |
| 2021 |
114.8 |
0.236 |
| 2022 |
114.3 |
0.236 |
| 2023 |
113.9 |
0.236 |
| 2024 |
113.4 |
0.236 |
| 2025 |
113.0 |
0.236 |
| 2026 |
112.5 |
0.236 |
| 2027 |
112.1 |
0.236 |
| 2028 |
111.6 |
0.236 |
| 2029 |
111.2 |
0.236 |
| 2030 |
110.7 |
0.235 |
| 2031 |
110.3 |
0.235 |
| 2032 |
109.8 |
0.234 |
| 2033 |
109.4 |
0.234 |
| 2034 |
108.9 |
0.233 |
| 2035 |
108.4 |
0.232 |
| 2036 |
108.0 |
0.231 |
| 2037 |
107.5 |
0.231 |
| 2038 |
107.0 |
0.230 |
| 2039 |
106.6 |
0.229 |
| 2040 |
106.1 |
0.228 |
| 2041 |
105.6 |
0.227 |
| 2042 |
105.1 |
0.226 |
| 2043 |
104.6 |
0.224 |
| 2044 |
104.1 |
0.223 |
| 2045 |
103.6 |
0.222 |
| 2046 |
103.1 |
0.221 |
| 2047 |
102.6 |
0.219 |
| 2048 |
102.1 |
0.218 |
| 2049 |
101.5 |
0.216 |
| 2050 |
101.0 |
0.215 |
|
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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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