08122+1739 STF 1196 AB (Tegmine)
08h 12m 12.79s +17° 38' 51.2" P.A. 359.00 sep 1.1 mag 5.30,6.25 Sp F8V dist. 25.08 pc (81.81 l.y.)
| Coord 2000 |
08122+1739 |
|
Discov num |
STF1196 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 12 12.79 +17 38 51.2 |
|
| Date first |
1825 |
|
Date last |
2022 |
|
Obs |
1230 |
|
| Pa first |
58 |
|
Pa last |
359.2 |
|
P.A. Now (θ) |
354° |
|
| Sep first |
1.1 |
|
Sep last |
1.134 |
|
Sep. Now (ρ) |
1.098" |
|
| Mag pri |
5.30 |
|
Mag sec |
6.25 |
|
delta mag (ΔM) |
0.95 |
|
Spectral class |
F8V (yellow-white) |
|
| Pri motion ra |
+080 |
|
Sec motion ra |
+080 |
|
| Pri motion dec |
-129 |
|
Sec motion dec |
-129 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
08122+1739 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Tegmine |
97645 |
08 12 13 +17 38 51 |
STF 1196 AB |
2022 |
1230 |
359 |
1.1 |
5.30 |
6.25 |
0.95 |
Y |
<=== |
| Show |
Zet2 Cnc |
97646 |
08 12 13 +17 38 51 |
STF 1196 AB,C |
2020 |
575 |
64 |
6.0 |
4.92 |
5.85 |
0.93 |
Y |
|
| Show |
Tegmine |
97646 |
08 12 13 +17 38 51 |
STF 1196 AC |
2022 |
643 |
61 |
6.2 |
5.30 |
5.85 |
0.55 |
|
|
| Show |
|
97645 |
08 12 13 +17 38 51 |
STF 1196 AB,D |
2017 |
21 |
107 |
275.9 |
4.92 |
8.89 |
3.97 |
|
|
| Show |
|
97645 |
08 12 13 +17 38 51 |
ENH 1 AB,E |
2007 |
5 |
26 |
562.2 |
4.92 |
10.08 |
5.16 |
|
|
| Show |
|
97645 |
08 12 13 +17 38 51 |
ENH 1 AB,F |
2007 |
5 |
46 |
638.1 |
4.92 |
10.26 |
5.34 |
|
|
| Show |
|
97645 |
08 12 13 +17 38 51 |
ENH 1 AB,G |
2007 |
5 |
332 |
672.3 |
4.92 |
10.15 |
5.23 |
|
|
| Show |
|
97645 |
08 12 13 +17 38 52 |
STF 1196 BC |
2020 |
187 |
70 |
5.5 |
6.25 |
5.85 |
0.40 |
|
|
| Show |
|
97646 |
08 12 13 +17 38 52 |
HUT 1 Ca,Cb |
2021 |
21 |
344 |
0.3 |
6.20 |
7.10 |
0.90 |
Y |
|
| Show |
|
97646 |
08 12 13 +17 38 52 |
OCC 9141 Ca,Cc |
1998 |
0 |
-1 |
0.1 |
5.20 |
7.00 |
1.80 |
|
|
| Show |
|
97646 |
08 12 13 +17 38 52 |
STF 1196 CD |
2000 |
7 |
107 |
277.5 |
5.85 |
8.89 |
3.04 |
|
|
| Show |
|
|
08 12 30 +17 47 14 |
ENH 1 EF |
2015 |
12 |
106 |
218.7 |
10.08 |
10.26 |
0.18 |
|
|
Ninefold system
8 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Tegmine |
|
Constellation |
Cancer |
|
SAO |
97645 |
|
HIP |
40167 |
|
| Tycho2 |
1381-01638-1 |
|
Gaia DR2 |
657244521593509376 |
|
HD |
68255 |
|
HR |
3208 |
|
| GC |
11142 |
|
ADS |
6650 |
|
BD |
BD+18 1867 |
|
Bayer |
Zeta 2 Cancri |
|
| Bayer name |
Zet2 Cnc |
|
Flamsteed |
16 Cancri |
|
Flamsteed name |
16 Cnc |
|
Distance |
25.08 |
|
| Distance ly |
81.81 |
|
Bayer greek |
ζ2 Cnc |
|
ORBITAL ELEMENTS
| Period (P) | 59.4252y | ± 0.0658 |
Periastron (T) | 1929.5282y | ± 0.0775 |
Semi-major axis (a) | 0.85272a | ± 0.00334 |
| Eccentricity (e) | 0.31435 | ± 0.00183 |
Inclination (i) | 173.574° | ± 2.66 |
Longitude of periastron (ω) | 239.232° | ± 26.195 |
| Node (Ω) | 67.744° | ± 26.034 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
85.0 |
0.828 |
| 2001 |
79.2 |
0.857 |
| 2002 |
73.7 |
0.885 |
| 2003 |
68.6 |
0.912 |
| 2004 |
63.7 |
0.937 |
| 2005 |
59.1 |
0.960 |
| 2006 |
54.7 |
0.982 |
| 2007 |
50.5 |
1.003 |
| 2008 |
46.4 |
1.022 |
| 2009 |
42.5 |
1.039 |
| 2010 |
38.7 |
1.054 |
| 2011 |
35.0 |
1.068 |
| 2012 |
31.4 |
1.080 |
| 2013 |
27.9 |
1.090 |
| 2014 |
24.4 |
1.099 |
| 2015 |
21.0 |
1.105 |
| 2016 |
17.6 |
1.110 |
| 2017 |
14.2 |
1.114 |
| 2018 |
10.9 |
1.115 |
| 2019 |
7.6 |
1.115 |
| 2020 |
4.2 |
1.114 |
| 2021 |
0.9 |
1.110 |
| 2022 |
357.5 |
1.105 |
| 2023 |
354.0 |
1.098 |
| 2024 |
350.6 |
1.090 |
| 2025 |
347.0 |
1.079 |
| 2026 |
343.4 |
1.068 |
| 2027 |
339.7 |
1.054 |
| 2028 |
335.9 |
1.039 |
| 2029 |
332.0 |
1.022 |
| 2030 |
328.0 |
1.004 |
| 2031 |
323.8 |
0.984 |
| 2032 |
319.4 |
0.963 |
| 2033 |
314.8 |
0.940 |
| 2034 |
310.0 |
0.915 |
| 2035 |
304.9 |
0.890 |
| 2036 |
299.5 |
0.863 |
| 2037 |
293.7 |
0.836 |
| 2038 |
287.5 |
0.807 |
| 2039 |
280.9 |
0.778 |
| 2040 |
273.8 |
0.749 |
| 2041 |
266.1 |
0.720 |
| 2042 |
257.7 |
0.691 |
| 2043 |
248.7 |
0.665 |
| 2044 |
238.9 |
0.640 |
| 2045 |
228.4 |
0.618 |
| 2046 |
217.2 |
0.601 |
| 2047 |
205.4 |
0.589 |
| 2048 |
193.3 |
0.583 |
| 2049 |
181.1 |
0.583 |
| 2050 |
168.9 |
0.589 |
|
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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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