07346+3153 STF 1110 AB (Castor)
07h 34m 35.86s +31° 53' 17.8" P.A. 51.00 sep 5.4 mag 1.93,2.97 Sp A1V+A4Vm dist. 15.6 pc (50.89 l.y.)
| Coord 2000 |
07346+3153 |
|
Discov num |
STF1110 |
|
Comp |
AB |
|
Coord arcsec 2000 |
07 34 35.86 +31 53 17.8 |
|
| Date first |
1778 |
|
Date last |
2023 |
|
Obs |
1520 |
|
| Pa first |
303 |
|
Pa last |
51.2 |
|
P.A. Now (θ) |
49.2° (calc) |
|
| Sep first |
5.2 |
|
Sep last |
5.37 |
|
Sep. Now (ρ) |
5.717" (calc) |
|
| Mag pri |
1.93 |
|
Mag sec |
2.97 |
|
delta mag (ΔM) |
1.04 |
|
Spectral class |
A1V+A4Vm (white/white) |
|
| Pri motion ra |
-206 |
|
Sec motion ra |
-206 |
|
| Pri motion dec |
-148 |
|
Sec motion dec |
-148 |
|
| Notes |
N
O
V
(See Notes, Orbital solution, Proper motion indicates physical) |
|
This double is physical.
07346+3153 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
60198 |
07 34 36 +31 53 18 |
CIA 29 Aa,Ab |
2021 |
16 |
293 |
0.0 |
1.93 |
|
|
Y |
|
| Show |
Castor |
60198 |
07 34 36 +31 53 18 |
STF 1110 AB |
2023 |
1520 |
51 |
5.4 |
1.93 |
2.97 |
1.04 |
Y |
<=== |
| Show |
|
60198 |
07 34 36 +31 53 18 |
STF 1110 AC |
2023 |
158 |
164 |
69.6 |
1.93 |
9.83 |
7.90 |
|
|
| Show |
|
60198 |
07 34 36 +31 53 18 |
STF 1110 AD |
2023 |
18 |
222 |
178.3 |
1.93 |
10.07 |
8.14 |
|
|
| Show |
|
60198 |
07 34 36 +31 53 18 |
CIA 29 Ba,Bb |
2021 |
12 |
302 |
0.0 |
2.97 |
|
|
Y |
|
| Show |
|
60198 |
07 34 36 +31 53 18 |
STF 1110 BC |
2020 |
125 |
168 |
73.8 |
2.97 |
9.83 |
6.86 |
|
|
| Show |
|
60199 |
07 34 37 +31 52 10 |
STF 1110 CD |
2015 |
6 |
244 |
154.9 |
9.83 |
10.07 |
0.24 |
Y |
|
Sextuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Castor |
|
Var name |
YY Gem |
|
Constellation |
Gemini |
|
SAO |
60198 |
|
| HIP |
36850 |
|
Tycho2 |
2457-02407-1 |
|
Gaia DR2 |
892348694913021056 |
|
HD |
60179 |
|
| HR |
2891 |
|
GC |
10120 |
|
ADS |
6175 |
|
BD |
BD+32 1581 |
|
| Bayer |
Alpha Geminorum |
|
Bayer name |
Alp Gem |
|
Flamsteed |
66 Geminorum |
|
Flamsteed name |
66 Gem |
|
| FK5 |
287 |
|
Distance |
15.6 |
|
Distance ly |
50.89 |
|
Bayer greek |
α Gem |
|
| Other names |
Apollo, Castore |
|
ORBITAL ELEMENTS
| Period (P) | 459.1y | ± 2.3 |
Periastron (T) | 1959.59y | ± 0.021 |
Semi-major axis (a) | 6.722a | ± 0.021 |
| Eccentricity (e) | 0.3382 | ± 0.0023 |
Inclination (i) | 115.107° | ± 0.06 |
Longitude of periastron (ω) | 251.84° | ± 0.38 |
| Node (Ω) | 41.304° | ± 0.085 |
Notes | n | |
Reference | CIA2022d | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
65.4 |
3.866 |
| 2001 |
64.5 |
3.949 |
| 2002 |
63.6 |
4.032 |
| 2003 |
62.8 |
4.114 |
| 2004 |
61.9 |
4.195 |
| 2005 |
61.1 |
4.275 |
| 2006 |
60.4 |
4.354 |
| 2007 |
59.6 |
4.433 |
| 2008 |
58.9 |
4.510 |
| 2009 |
58.3 |
4.587 |
| 2010 |
57.6 |
4.663 |
| 2011 |
57.0 |
4.737 |
| 2012 |
56.3 |
4.810 |
| 2013 |
55.7 |
4.883 |
| 2014 |
55.1 |
4.954 |
| 2015 |
54.6 |
5.024 |
| 2016 |
54.0 |
5.093 |
| 2017 |
53.5 |
5.161 |
| 2018 |
53.0 |
5.227 |
| 2019 |
52.5 |
5.293 |
| 2020 |
52.0 |
5.357 |
| 2021 |
51.5 |
5.420 |
| 2022 |
51.0 |
5.482 |
| 2023 |
50.5 |
5.542 |
| 2024 |
50.1 |
5.602 |
| 2025 |
49.6 |
5.660 |
| 2026 |
49.2 |
5.717 |
| 2027 |
48.8 |
5.772 |
| 2028 |
48.3 |
5.827 |
| 2029 |
47.9 |
5.880 |
| 2030 |
47.5 |
5.932 |
| 2031 |
47.1 |
5.983 |
| 2032 |
46.7 |
6.033 |
| 2033 |
46.3 |
6.082 |
| 2034 |
46.0 |
6.129 |
| 2035 |
45.6 |
6.175 |
| 2036 |
45.2 |
6.220 |
| 2037 |
44.9 |
6.264 |
| 2038 |
44.5 |
6.306 |
| 2039 |
44.1 |
6.348 |
| 2040 |
43.8 |
6.388 |
| 2041 |
43.5 |
6.427 |
| 2042 |
43.1 |
6.465 |
| 2043 |
42.8 |
6.502 |
| 2044 |
42.4 |
6.538 |
| 2045 |
42.1 |
6.573 |
| 2046 |
41.8 |
6.606 |
| 2047 |
41.5 |
6.639 |
| 2048 |
41.1 |
6.670 |
| 2049 |
40.8 |
6.701 |
| 2050 |
40.5 |
6.730 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
