00206+1219 BU 1015 (HD 1634)
00h 20m 38.21s +12° 18' 39.8" P.A. 110.00 sep 0.5 mag 8.39,9.67 Sp F5 dist. 107.41 pc (350.37 l.y.)
| Coord 2000 |
00206+1219 |
|
Discov num |
BU 1015 |
|
Comp |
|
|
Coord arcsec 2000 |
00 20 38.21 +12 18 39.8 |
|
| Date first |
1888 |
|
Date last |
2017 |
|
Obs |
104 |
|
| Pa first |
115 |
|
Pa last |
109.8 |
|
P.A. Now (θ) |
114.1° |
|
| Sep first |
0.6 |
|
Sep last |
0.51 |
|
Sep. Now (ρ) |
0.514" |
|
| Mag pri |
8.39 |
|
Mag sec |
9.67 |
|
delta mag (ΔM) |
1.28 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-027 |
|
Sec motion ra |
-027 |
|
| Pri motion dec |
+007 |
|
Sec motion dec |
+007 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 1634 |
|
Constellation |
Pisces |
|
SAO |
91856 |
|
HIP |
1646 |
|
| Tycho2 |
0599-00185-1 |
|
Gaia DR2 |
2755335495931879040 |
|
HD |
1634 |
|
ADS |
281 |
|
| BD |
BD+11 41 |
|
Distance |
107.41 |
|
Distance ly |
350.37 |
|
ORBITAL ELEMENTS
| Period (P) | 137y | |
Periastron (T) | 1961.65y | |
Semi-major axis (a) | 0.333a | |
| Eccentricity (e) | 0.557 | |
Inclination (i) | 35° | |
Longitude of periastron (ω) | 10° | |
| Node (Ω) | 291.2° | |
Notes | n | |
Reference | Hrt2010a | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
94.5 |
0.434 |
| 2001 |
95.5 |
0.440 |
| 2002 |
96.5 |
0.446 |
| 2003 |
97.5 |
0.452 |
| 2004 |
98.5 |
0.457 |
| 2005 |
99.4 |
0.462 |
| 2006 |
100.3 |
0.467 |
| 2007 |
101.2 |
0.471 |
| 2008 |
102.1 |
0.475 |
| 2009 |
103.0 |
0.480 |
| 2010 |
103.8 |
0.483 |
| 2011 |
104.7 |
0.487 |
| 2012 |
105.5 |
0.491 |
| 2013 |
106.3 |
0.494 |
| 2014 |
107.1 |
0.497 |
| 2015 |
107.9 |
0.499 |
| 2016 |
108.7 |
0.502 |
| 2017 |
109.5 |
0.504 |
| 2018 |
110.3 |
0.507 |
| 2019 |
111.1 |
0.508 |
| 2020 |
111.8 |
0.510 |
| 2021 |
112.6 |
0.512 |
| 2022 |
113.3 |
0.513 |
| 2023 |
114.1 |
0.514 |
| 2024 |
114.8 |
0.515 |
| 2025 |
115.6 |
0.516 |
| 2026 |
116.3 |
0.516 |
| 2027 |
117.1 |
0.516 |
| 2028 |
117.8 |
0.516 |
| 2029 |
118.6 |
0.516 |
| 2030 |
119.3 |
0.516 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
