13550-0804 STF 1788 AB (HD 121325)
13h 54m 58.20s -08° 03' 31.9" P.A. 100.00 sep 3.7 mag 6.68,7.26 Sp F8V+G0 dist. 33.08 pc (107.91 l.y.)
| Coord 2000 |
13550-0804 |
|
Discov num |
STF1788 |
|
Comp |
AB |
|
Coord arcsec 2000 |
13 54 58.20 -08 03 31.9 |
|
| Date first |
1825 |
|
Date last |
2019 |
|
Obs |
254 |
|
| Pa first |
52 |
|
Pa last |
100.1 |
|
P.A. Now (θ) |
100.1° |
|
| Sep first |
2.8 |
|
Sep last |
3.739 |
|
Sep. Now (ρ) |
3.739" |
|
| Mag pri |
6.68 |
|
Mag sec |
7.26 |
|
delta mag (ΔM) |
0.58 |
|
Spectral class |
F8V+G0 (yellow-white/yellow) |
|
| Pri motion ra |
-173 |
|
Sec motion ra |
-169 |
|
| Pri motion dec |
-033 |
|
Sec motion dec |
-045 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.072 (< 0.3, Physical double)
This double is physical.
13550-0804 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 121325 |
139618 |
13 54 58 -08 03 32 |
STF 1788 AB |
2019 |
254 |
100 |
3.7 |
6.68 |
7.26 |
0.58 |
Y |
<=== |
| Show |
|
139618 |
13 54 58 -08 03 32 |
STF 1788 AC |
2015 |
17 |
298 |
112.3 |
6.68 |
10.80 |
4.12 |
|
|
| Show |
|
139618 |
13 54 58 -08 03 32 |
STF 1788 AD |
2015 |
16 |
211 |
143.5 |
6.68 |
11.69 |
5.01 |
|
|
| Show |
|
139618 |
13 54 58 -08 03 32 |
TOK 570 AE |
2015 |
4 |
228 |
647.0 |
6.68 |
12.43 |
5.75 |
|
|
0 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 121325 |
|
Constellation |
Virgo |
|
SAO |
139618 |
|
HIP |
67953 |
|
| Tycho2 |
5553-01479-1 |
|
Gaia DR2 |
3618910139048607616 |
|
HD |
121325 |
|
HR |
5233 |
|
| ADS |
9053 |
|
BD |
BD-07 3728 |
|
Distance |
33.08 |
|
Distance ly |
107.91 |
|
ORBITAL ELEMENTS
| Period (P) | 1036.5072y | ± 494.0166 |
Periastron (T) | 2165.5486y | ± 381.8551 |
Semi-major axis (a) | 5.12252a | ± 1.82824 |
| Eccentricity (e) | 0.5392 | ± 0.32446 |
Inclination (i) | 73.799° | ± 17.071 |
Longitude of periastron (ω) | 74.113° | ± 33.372 |
| Node (Ω) | 114.685° | ± 15.893 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
97.9 |
3.583 |
| 2001 |
98.1 |
3.588 |
| 2002 |
98.3 |
3.593 |
| 2003 |
98.4 |
3.598 |
| 2004 |
98.6 |
3.603 |
| 2005 |
98.8 |
3.607 |
| 2006 |
98.9 |
3.612 |
| 2007 |
99.1 |
3.616 |
| 2008 |
99.3 |
3.620 |
| 2009 |
99.4 |
3.624 |
| 2010 |
99.6 |
3.628 |
| 2011 |
99.8 |
3.632 |
| 2012 |
99.9 |
3.636 |
| 2013 |
100.1 |
3.640 |
| 2014 |
100.2 |
3.643 |
| 2015 |
100.4 |
3.647 |
| 2016 |
100.6 |
3.650 |
| 2017 |
100.7 |
3.653 |
| 2018 |
100.9 |
3.656 |
| 2019 |
101.0 |
3.659 |
| 2020 |
101.2 |
3.661 |
| 2021 |
101.4 |
3.664 |
| 2022 |
101.5 |
3.666 |
| 2023 |
101.7 |
3.669 |
| 2024 |
101.8 |
3.671 |
| 2025 |
102.0 |
3.672 |
| 2026 |
102.2 |
3.674 |
| 2027 |
102.3 |
3.676 |
| 2028 |
102.5 |
3.677 |
| 2029 |
102.6 |
3.679 |
| 2030 |
102.8 |
3.680 |
| 2031 |
103.0 |
3.681 |
| 2032 |
103.1 |
3.681 |
| 2033 |
103.3 |
3.682 |
| 2034 |
103.4 |
3.682 |
| 2035 |
103.6 |
3.683 |
| 2036 |
103.7 |
3.683 |
| 2037 |
103.9 |
3.682 |
| 2038 |
104.1 |
3.682 |
| 2039 |
104.2 |
3.682 |
| 2040 |
104.4 |
3.681 |
| 2041 |
104.5 |
3.680 |
| 2042 |
104.7 |
3.679 |
| 2043 |
104.8 |
3.678 |
| 2044 |
105.0 |
3.676 |
| 2045 |
105.2 |
3.674 |
| 2046 |
105.3 |
3.672 |
| 2047 |
105.5 |
3.670 |
| 2048 |
105.6 |
3.668 |
| 2049 |
105.8 |
3.665 |
| 2050 |
106.0 |
3.662 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
