08542+3035 STF 1291 AB
08h 54m 14.65s +30° 34' 45.8" P.A. 310.00 sep 1.5 mag 6.09,6.37 Sp G7III dist. 141.44 pc (461.38 l.y.)
Coord 2000 |
08542+3035 |
|
Discov num |
STF1291 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 54 14.65 +30 34 45.8 |
|
Date first |
1782 |
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Date last |
2019 |
|
Obs |
296 |
|
Pa first |
338 |
|
Pa last |
310.2 |
|
P.A. Now (θ) |
310.2° |
|
Sep first |
0.9 |
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Sep last |
1.51 |
|
Sep. Now (ρ) |
1.51" |
|
Mag pri |
6.09 |
|
Mag sec |
6.37 |
|
delta mag (ΔM) |
0.28 |
|
Spectral class |
G7III (yellow) |
|
Pri motion ra |
+039 |
|
Sec motion ra |
+039 |
|
Pri motion dec |
-026 |
|
Sec motion dec |
-026 |
|
Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
08542+3035 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
61125 |
08 54 15 +30 34 46 |
STF 1291 AB |
2019 |
296 |
310 |
1.5 |
6.09 |
6.37 |
0.28 |
Y |
<=== |
Show |
HD 75959 |
61125 |
08 54 15 +30 34 46 |
STF 1291 AB,C |
2015 |
8 |
204 |
54.6 |
5.47 |
9.20 |
3.73 |
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Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cancer |
|
SAO |
61125 |
|
HIP |
43721 |
|
Tycho2 |
2485-02096-1 |
|
Gaia DR2 |
705832623326195456 |
|
HD |
75959 |
|
HR |
3532 |
|
GC |
12289 |
|
ADS |
7071 |
|
BD |
BD+31 1907 |
|
Flamsteed |
57 Cancri |
|
Flamsteed name |
57 Cnc |
|
Distance |
141.44 |
|
Distance ly |
461.38 |
|
ORBITAL ELEMENTS
Period (P) | 2336.1456y | ± 1045.0514 |
Periastron (T) | 2351.9359y | ± 671.3998 |
Semi-major axis (a) | 3.61518a | ± 1.93444 |
Eccentricity (e) | 0.79596 | ± 0.15789 |
Inclination (i) | 104.575° | ± 8.536 |
Longitude of periastron (ω) | 254.31° | ± 24.459 |
Node (Ω) | 91.152° | ± 46.749 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
311.9 |
1.510 |
2001 |
311.7 |
1.511 |
2002 |
311.6 |
1.512 |
2003 |
311.5 |
1.513 |
2004 |
311.3 |
1.514 |
2005 |
311.2 |
1.515 |
2006 |
311.1 |
1.516 |
2007 |
310.9 |
1.517 |
2008 |
310.8 |
1.518 |
2009 |
310.7 |
1.519 |
2010 |
310.5 |
1.520 |
2011 |
310.4 |
1.521 |
2012 |
310.3 |
1.522 |
2013 |
310.1 |
1.523 |
2014 |
310.0 |
1.524 |
2015 |
309.9 |
1.526 |
2016 |
309.7 |
1.527 |
2017 |
309.6 |
1.528 |
2018 |
309.5 |
1.529 |
2019 |
309.3 |
1.530 |
2020 |
309.2 |
1.531 |
2021 |
309.1 |
1.532 |
2022 |
309.0 |
1.533 |
2023 |
308.8 |
1.534 |
2024 |
308.7 |
1.535 |
2025 |
308.6 |
1.536 |
2026 |
308.4 |
1.537 |
2027 |
308.3 |
1.538 |
2028 |
308.2 |
1.539 |
2029 |
308.0 |
1.540 |
2030 |
307.9 |
1.541 |
|
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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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