23587-0333 BU 730 (27 Psc)
23h 58m 40.41s -03° 33' 20.9" P.A. 330.00 sep 0.7 mag 4.90,8.90 Sp G9III dist. 71.89 pc (234.51 l.y.)
| Coord 2000 |
23587-0333 |
|
Discov num |
BU 730 |
|
Comp |
|
|
Coord arcsec 2000 |
23 58 40.41 -03 33 20.9 |
|
| Date first |
1878 |
|
Date last |
2018 |
|
Obs |
34 |
|
| Pa first |
265 |
|
Pa last |
330.2 |
|
P.A. Now (θ) |
330.2° |
|
| Sep first |
1.4 |
|
Sep last |
0.719 |
|
Sep. Now (ρ) |
0.719" |
|
| Mag pri |
4.90 |
|
Mag sec |
8.90 |
|
delta mag (ΔM) |
4 |
|
Spectral class |
G9III (yellow) |
|
| Pri motion ra |
-051 |
|
Sec motion ra |
|
|
| Pri motion dec |
-072 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
27 Psc |
|
Var name |
NSV14785 Psc |
|
Constellation |
Pisces |
|
SAO |
147008 |
|
| HIP |
118209 |
|
Tycho2 |
5256-01131-1 |
|
Gaia DR2 |
2448049586838058624 |
|
HD |
224533 |
|
| HR |
9067 |
|
GC |
33248 |
|
ADS |
17137 |
|
BD |
BD-04 5996 |
|
| Flamsteed |
27 Piscium |
|
Flamsteed name |
27 Psc |
|
FK5 |
900 |
|
Distance |
71.89 |
|
| Distance ly |
234.51 |
|
ORBITAL ELEMENTS
| Period (P) | 931.1341y | ± 504.9436 |
Periastron (T) | 2039.831y | ± 16.5537 |
Semi-major axis (a) | 1.84987a | ± 0.74221 |
| Eccentricity (e) | 0.69031 | ± 0.22986 |
Inclination (i) | 46.242° | ± 17.884 |
Longitude of periastron (ω) | 260.957° | ± 16.198 |
| Node (Ω) | 134.961° | ± 40.569 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2012 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
313.3 |
0.896 |
| 2001 |
314.1 |
0.885 |
| 2002 |
315.0 |
0.873 |
| 2003 |
315.9 |
0.861 |
| 2004 |
316.8 |
0.849 |
| 2005 |
317.7 |
0.837 |
| 2006 |
318.7 |
0.825 |
| 2007 |
319.7 |
0.812 |
| 2008 |
320.7 |
0.799 |
| 2009 |
321.7 |
0.786 |
| 2010 |
322.8 |
0.773 |
| 2011 |
323.9 |
0.760 |
| 2012 |
325.1 |
0.746 |
| 2013 |
326.3 |
0.733 |
| 2014 |
327.6 |
0.719 |
| 2015 |
328.9 |
0.705 |
| 2016 |
330.2 |
0.691 |
| 2017 |
331.7 |
0.677 |
| 2018 |
333.1 |
0.662 |
| 2019 |
334.7 |
0.648 |
| 2020 |
336.3 |
0.633 |
| 2021 |
338.0 |
0.619 |
| 2022 |
339.8 |
0.604 |
| 2023 |
341.6 |
0.589 |
| 2024 |
343.6 |
0.575 |
| 2025 |
345.6 |
0.560 |
| 2026 |
347.8 |
0.546 |
| 2027 |
350.1 |
0.531 |
| 2028 |
352.5 |
0.517 |
| 2029 |
355.0 |
0.504 |
| 2030 |
357.7 |
0.490 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
