09179+2834 STF 3121 AB
09h 17m 53.45s +28° 33' 37.7" P.A. 230.00 sep 0.4 mag 7.90,8.00 Sp K0 dist. 17.27 pc (56.33 l.y.)
| Coord 2000 |
09179+2834 |
|
Discov num |
STF3121 |
|
Comp |
AB |
|
Coord arcsec 2000 |
09 17 53.45 +28 33 37.7 |
|
| Date first |
1832 |
|
Date last |
2022 |
|
Obs |
420 |
|
| Pa first |
20 |
|
Pa last |
229.7 |
|
P.A. Now (θ) |
236.7° |
|
| Sep first |
0.9 |
|
Sep last |
0.35 |
|
Sep. Now (ρ) |
0.302" |
|
| Mag pri |
7.90 |
|
Mag sec |
8.00 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
+053 |
|
Sec motion ra |
|
|
| Pri motion dec |
-511 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
09179+2834 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
80745 |
09 17 53 +28 33 38 |
STF 3121 AB |
2022 |
420 |
230 |
0.4 |
7.90 |
8.00 |
0.10 |
Y |
<=== |
| Show |
|
80745 |
09 17 53 +28 33 38 |
ABT 6 AB,C |
2001 |
3 |
44 |
173.2 |
7.32 |
12.87 |
5.55 |
|
|
| Show |
IP Cnc |
80745 |
09 17 53 +28 33 38 |
ABT 6 AB,D |
2001 |
4 |
133 |
165.9 |
7.32 |
11.96 |
4.64 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
IP Cnc |
|
Constellation |
Cancer |
|
SAO |
80745 |
|
HIP |
45617 |
|
| Tycho2 |
1957-00446-1 |
|
HD |
79969 |
|
GC |
12816 |
|
ADS |
7284 |
|
| GL |
Gl 340A |
|
BD |
BD+29 1883 |
|
Distance |
17.27 |
|
Distance ly |
56.33 |
|
ORBITAL ELEMENTS
| Period (P) | 34.17y | |
Periastron (T) | 1981y | |
Semi-major axis (a) | 0.68a | |
| Eccentricity (e) | 0.32 | |
Inclination (i) | 76° | |
Longitude of periastron (ω) | 131° | |
| Node (Ω) | 24° | |
Notes | n | |
Reference | Sod1999 | |
| Equinox | 2000 | |
Last observation | | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
13.3 |
0.714 |
| 2001 |
15.4 |
0.754 |
| 2002 |
17.3 |
0.783 |
| 2003 |
19.0 |
0.800 |
| 2004 |
20.8 |
0.804 |
| 2005 |
22.5 |
0.793 |
| 2006 |
24.4 |
0.766 |
| 2007 |
26.4 |
0.722 |
| 2008 |
28.7 |
0.660 |
| 2009 |
31.6 |
0.578 |
| 2010 |
35.6 |
0.476 |
| 2011 |
42.2 |
0.356 |
| 2012 |
56.1 |
0.226 |
| 2013 |
99.5 |
0.124 |
| 2014 |
164.1 |
0.171 |
| 2015 |
186.4 |
0.294 |
| 2016 |
195.7 |
0.404 |
| 2017 |
201.3 |
0.479 |
| 2018 |
205.8 |
0.514 |
| 2019 |
210.0 |
0.514 |
| 2020 |
214.4 |
0.484 |
| 2021 |
219.7 |
0.433 |
| 2022 |
226.7 |
0.370 |
| 2023 |
236.7 |
0.302 |
| 2024 |
252.3 |
0.239 |
| 2025 |
276.3 |
0.199 |
| 2026 |
305.3 |
0.201 |
| 2027 |
328.7 |
0.244 |
| 2028 |
343.7 |
0.309 |
| 2029 |
353.1 |
0.383 |
| 2030 |
359.5 |
0.457 |
| 2031 |
4.1 |
0.529 |
| 2032 |
7.7 |
0.595 |
| 2033 |
10.5 |
0.655 |
| 2034 |
12.9 |
0.706 |
| 2035 |
15.0 |
0.748 |
| 2036 |
17.0 |
0.779 |
| 2037 |
18.7 |
0.798 |
| 2038 |
20.5 |
0.804 |
| 2039 |
22.2 |
0.796 |
| 2040 |
24.0 |
0.772 |
| 2041 |
26.0 |
0.731 |
| 2042 |
28.3 |
0.672 |
| 2043 |
31.1 |
0.593 |
| 2044 |
34.8 |
0.495 |
| 2045 |
40.8 |
0.378 |
| 2046 |
52.7 |
0.248 |
| 2047 |
88.0 |
0.134 |
| 2048 |
156.8 |
0.153 |
| 2049 |
184.0 |
0.273 |
| 2050 |
194.4 |
0.388 |
|
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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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