12417-0127 STF 1670 AB (Porrima)
12h 41m 39.60s -01° 26' 57.9" P.A. 352.00 sep 3.4 mag 3.48,3.53 Sp F0V+F0V dist. 11.68 pc (38.1 l.y.)
| Coord 2000 |
12417-0127 |
|
Discov num |
STF1670 |
|
Comp |
AB |
|
Coord arcsec 2000 |
12 41 39.60 -01 26 57.9 |
|
| Date first |
1756 |
|
Date last |
2024 |
|
Obs |
1625 |
|
| Pa first |
324 |
|
Pa last |
351.9 |
|
P.A. Now (θ) |
351.9° |
|
| Sep first |
6.5 |
|
Sep last |
3.37 |
|
Sep. Now (ρ) |
3.474" |
|
| Mag pri |
3.48 |
|
Mag sec |
3.53 |
|
delta mag (ΔM) |
0.05 |
|
Spectral class |
F0V+F0V (yellow-white/yellow-white) |
|
| Pri motion ra |
-601 |
|
Sec motion ra |
-534 |
|
| Pri motion dec |
+084 |
|
Sec motion dec |
-064 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.268 (< 0.3, Physical double)
This double is physical.
12417-0127 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Porrima |
138917 |
12 41 40 -01 26 58 |
STF 1670 AB |
2024 |
1625 |
352 |
3.4 |
3.48 |
3.53 |
0.05 |
Y |
<=== |
| Show |
|
138917 |
12 41 40 -01 26 58 |
STF 1670 AC |
2015 |
5 |
121 |
99.4 |
3.48 |
15.10 |
11.62 |
|
|
| Show |
|
138917 |
12 41 40 -01 26 58 |
STF 1670 AD |
2015 |
8 |
90 |
177.6 |
3.48 |
12.05 |
8.57 |
|
|
| Show |
|
138917 |
12 41 40 -01 26 58 |
STF 1670 AE |
2016 |
18 |
167 |
260.4 |
3.48 |
8.94 |
5.46 |
|
|
| Show |
|
138917 |
12 41 40 -01 26 58 |
STF 1670 AF |
2015 |
10 |
267 |
422.3 |
3.48 |
9.53 |
6.05 |
|
|
| Show |
|
138917 |
12 41 40 -01 26 58 |
STF 1670 BD |
2015 |
3 |
90 |
177.8 |
3.53 |
12.05 |
8.52 |
|
|
| Show |
|
138917 |
12 41 40 -01 26 58 |
STF 1670 BE |
2015 |
7 |
167 |
260.0 |
3.53 |
8.94 |
5.41 |
|
|
| Show |
|
138917 |
12 41 40 -01 26 58 |
STF 1670 BF |
2015 |
5 |
268 |
422.0 |
3.53 |
9.53 |
6.00 |
|
|
Sextuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Porrima |
|
Var name |
NSV5859 Vir |
|
Constellation |
Virgo |
|
SAO |
138917 |
|
| HIP |
61941 |
|
Tycho2 |
4949-01120-1 |
|
HD |
110379 |
|
HR |
4825 |
|
| GC |
17270 |
|
ADS |
8630 |
|
BD |
BD-00 2601 |
|
Bayer |
Gamma Virginis |
|
| Bayer name |
Gam Vir |
|
Flamsteed |
29 Virginis |
|
Flamsteed name |
29 Vir |
|
Distance |
11.68 |
|
| Distance ly |
38.1 |
|
Bayer greek |
γ Vir |
|
| Meaning |
Roman goddess of childbirth |
|
ORBITAL ELEMENTS
| Period (P) | 169.104y | ± 0.011 |
Periastron (T) | 2005.511y | ± 0.0019 |
Semi-major axis (a) | 3.639a | ± 0.008 |
| Eccentricity (e) | 0.8815 | ± 0.00018 |
Inclination (i) | 149.46° | ± 0.16 |
Longitude of periastron (ω) | 255.02° | ± 0.37 |
| Node (Ω) | 35.34° | ± 0.42 |
Notes | n | |
Reference | Sca2007c | |
| Equinox | 2000 | |
Last observation | 2006 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
260.5 |
1.493 |
| 2001 |
254.7 |
1.315 |
| 2002 |
246.9 |
1.123 |
| 2003 |
235.8 |
0.912 |
| 2004 |
217.4 |
0.680 |
| 2005 |
179.0 |
0.444 |
| 2006 |
104.5 |
0.409 |
| 2007 |
60.1 |
0.655 |
| 2008 |
41.3 |
0.924 |
| 2009 |
30.7 |
1.168 |
| 2010 |
23.7 |
1.389 |
| 2011 |
18.5 |
1.591 |
| 2012 |
14.4 |
1.777 |
| 2013 |
11.1 |
1.951 |
| 2014 |
8.4 |
2.114 |
| 2015 |
6.0 |
2.268 |
| 2016 |
3.9 |
2.414 |
| 2017 |
2.0 |
2.553 |
| 2018 |
0.4 |
2.685 |
| 2019 |
358.8 |
2.812 |
| 2020 |
357.5 |
2.933 |
| 2021 |
356.2 |
3.050 |
| 2022 |
355.0 |
3.162 |
| 2023 |
353.9 |
3.269 |
| 2024 |
352.8 |
3.373 |
| 2025 |
351.9 |
3.474 |
| 2026 |
350.9 |
3.571 |
| 2027 |
350.1 |
3.664 |
| 2028 |
349.2 |
3.755 |
| 2029 |
348.4 |
3.842 |
| 2030 |
347.7 |
3.927 |
| 2031 |
346.9 |
4.009 |
| 2032 |
346.2 |
4.089 |
| 2033 |
345.6 |
4.166 |
| 2034 |
344.9 |
4.241 |
| 2035 |
344.3 |
4.313 |
| 2036 |
343.7 |
4.384 |
| 2037 |
343.1 |
4.452 |
| 2038 |
342.5 |
4.518 |
| 2039 |
342.0 |
4.582 |
| 2040 |
341.4 |
4.645 |
| 2041 |
340.9 |
4.705 |
| 2042 |
340.4 |
4.764 |
| 2043 |
339.9 |
4.821 |
| 2044 |
339.4 |
4.876 |
| 2045 |
338.9 |
4.929 |
| 2046 |
338.5 |
4.981 |
| 2047 |
338.0 |
5.031 |
| 2048 |
337.6 |
5.080 |
| 2049 |
337.1 |
5.127 |
| 2050 |
336.7 |
5.172 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
