01213+1132 BU 4 AB (HD 8187)
01h 21m 19.23s +11° 32' 12.3" P.A. 114.00 sep 0.6 mag 7.12,8.86 Sp F1III dist. 206.61 pc (673.96 l.y.)
| Coord 2000 |
01213+1132 |
|
Discov num |
BU 4 |
|
Comp |
AB |
|
Coord arcsec 2000 |
01 21 19.23 +11 32 12.3 |
|
| Date first |
1872 |
|
Date last |
2018 |
|
Obs |
98 |
|
| Pa first |
100 |
|
Pa last |
113.8 |
|
P.A. Now (θ) |
113.8° |
|
| Sep first |
0.5 |
|
Sep last |
0.639 |
|
Sep. Now (ρ) |
0.639" |
|
| Mag pri |
7.12 |
|
Mag sec |
8.86 |
|
delta mag (ΔM) |
1.74 |
|
Spectral class |
F1III (yellow-white) |
|
| Pri motion ra |
+060 |
|
Sec motion ra |
+060 |
|
| Pri motion dec |
+001 |
|
Sec motion dec |
+001 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
01213+1132 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 8187 |
92388 |
01 21 19 +11 32 12 |
BU 4 AB |
2018 |
98 |
114 |
0.6 |
7.12 |
8.86 |
1.74 |
Y |
<=== |
| Show |
|
92388 |
01 21 19 +11 32 12 |
BU 4 AC |
2015 |
8 |
250 |
29.3 |
7.12 |
13.60 |
6.48 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 8187 |
|
Constellation |
Pisces |
|
SAO |
92388 |
|
HIP |
6334 |
|
| Tycho2 |
0616-00939-1 |
|
Gaia DR2 |
2586478199560585344 |
|
HD |
8187 |
|
GC |
1634 |
|
| ADS |
1097 |
|
BD |
BD+10 168 |
|
Distance |
206.61 |
|
Distance ly |
673.96 |
|
ORBITAL ELEMENTS
| Period (P) | 291.05y | |
Periastron (T) | 1942.93y | |
Semi-major axis (a) | 0.43a | |
| Eccentricity (e) | 0.89 | |
Inclination (i) | 141° | |
Longitude of periastron (ω) | 242.8° | |
| Node (Ω) | 149.8° | |
Notes | n | |
Reference | Sca2015b | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
111.2 |
0.535 |
| 2001 |
110.9 |
0.539 |
| 2002 |
110.7 |
0.543 |
| 2003 |
110.4 |
0.547 |
| 2004 |
110.1 |
0.551 |
| 2005 |
109.9 |
0.555 |
| 2006 |
109.6 |
0.558 |
| 2007 |
109.3 |
0.562 |
| 2008 |
109.1 |
0.565 |
| 2009 |
108.8 |
0.569 |
| 2010 |
108.6 |
0.572 |
| 2011 |
108.3 |
0.575 |
| 2012 |
108.1 |
0.579 |
| 2013 |
107.8 |
0.582 |
| 2014 |
107.6 |
0.585 |
| 2015 |
107.4 |
0.588 |
| 2016 |
107.1 |
0.591 |
| 2017 |
106.9 |
0.594 |
| 2018 |
106.7 |
0.597 |
| 2019 |
106.5 |
0.600 |
| 2020 |
106.2 |
0.602 |
| 2021 |
106.0 |
0.605 |
| 2022 |
105.8 |
0.608 |
| 2023 |
105.6 |
0.610 |
| 2024 |
105.3 |
0.613 |
| 2025 |
105.1 |
0.615 |
| 2026 |
104.9 |
0.618 |
| 2027 |
104.7 |
0.620 |
| 2028 |
104.5 |
0.622 |
| 2029 |
104.3 |
0.624 |
| 2030 |
104.1 |
0.627 |
| 2031 |
103.9 |
0.629 |
| 2032 |
103.7 |
0.631 |
| 2033 |
103.5 |
0.633 |
| 2034 |
103.3 |
0.635 |
| 2035 |
103.1 |
0.637 |
| 2036 |
102.9 |
0.639 |
| 2037 |
102.7 |
0.641 |
| 2038 |
102.5 |
0.642 |
| 2039 |
102.3 |
0.644 |
| 2040 |
102.1 |
0.646 |
| 2041 |
101.9 |
0.647 |
| 2042 |
101.7 |
0.649 |
| 2043 |
101.5 |
0.650 |
| 2044 |
101.3 |
0.652 |
| 2045 |
101.1 |
0.653 |
| 2046 |
100.9 |
0.655 |
| 2047 |
100.7 |
0.656 |
| 2048 |
100.6 |
0.657 |
| 2049 |
100.4 |
0.659 |
| 2050 |
100.2 |
0.660 |
|
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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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