21214-6655 SYU 13 Ba,Bb
21h 21m 28.73s -66° 55' 06.3" P.A. 277.00 sep 0.1 mag 7.70,8.60 Sp K7
| Coord 2000 |
21214-6655 |
|
Discov num |
SYU 13 |
|
Comp |
Ba,Bb |
|
Coord arcsec 2000 |
21 21 28.73 -66 55 06.3 |
|
| Date first |
2015 |
|
Date last |
2021 |
|
Obs |
6 |
|
| Pa first |
302 |
|
Pa last |
276.8 |
|
P.A. Now (θ) |
276.8° |
|
| Sep first |
0.1 |
|
Sep last |
0.064 |
|
Sep. Now (ρ) |
0.064" |
|
| Mag pri |
7.70 |
|
Mag sec |
8.60 |
|
delta mag (ΔM) |
0.9 |
|
Spectral class |
K7 (yellow-orange) |
|
| Pri motion ra |
+097 |
|
Sec motion ra |
|
|
| Pri motion dec |
-104 |
|
Sec motion dec |
|
|
| Notes |
O
K
(Orbital solution, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
21214-6655 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
V390 Pav |
|
21 21 24 -66 54 57 |
HJ 5255 AB |
2016 |
10 |
110 |
26.5 |
9.08 |
10.75 |
1.67 |
|
|
| Show |
|
|
21 21 29 -66 55 06 |
SYU 13 Ba,Bb |
2021 |
6 |
277 |
0.1 |
7.70 |
8.60 |
0.90 |
Y |
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pavo |
|
Gaia DR2 |
6400160947954197888 |
|
ORBITAL ELEMENTS
| Period (P) | 1.5124y | ± 0.011 |
Periastron (T) | 2022.327y | ± 0.089 |
Semi-major axis (a) | 0.0438a | ± 0.003 |
| Eccentricity (e) | 0.543 | |
Inclination (i) | 154.1° | ± 22.1 |
Longitude of periastron (ω) | 137° | |
| Node (Ω) | 251.2° | ± 12.2 |
Notes | | |
Reference | Tok2024b | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
332.3 |
0.048 |
| 2001 |
215.7 |
0.032 |
| 2002 |
283.7 |
0.065 |
| 2003 |
336.1 |
0.046 |
| 2004 |
223.1 |
0.036 |
| 2005 |
285.8 |
0.065 |
| 2006 |
340.3 |
0.045 |
| 2007 |
229.4 |
0.039 |
| 2008 |
287.8 |
0.065 |
| 2009 |
344.8 |
0.043 |
| 2010 |
234.7 |
0.041 |
| 2011 |
289.9 |
0.065 |
| 2012 |
349.7 |
0.041 |
| 2013 |
239.4 |
0.044 |
| 2014 |
291.9 |
0.064 |
| 2015 |
355.2 |
0.038 |
| 2016 |
243.6 |
0.047 |
| 2017 |
294.0 |
0.064 |
| 2018 |
1.3 |
0.036 |
| 2019 |
247.3 |
0.049 |
| 2020 |
296.1 |
0.064 |
| 2021 |
8.2 |
0.034 |
| 2022 |
250.7 |
0.051 |
| 2023 |
298.2 |
0.063 |
| 2024 |
16.0 |
0.032 |
| 2025 |
253.9 |
0.053 |
| 2026 |
300.4 |
0.062 |
| 2027 |
25.0 |
0.030 |
| 2028 |
256.9 |
0.055 |
| 2029 |
302.6 |
0.062 |
| 2030 |
35.4 |
0.028 |
| 2031 |
259.7 |
0.056 |
| 2032 |
304.9 |
0.061 |
| 2033 |
47.7 |
0.025 |
| 2034 |
262.3 |
0.058 |
| 2035 |
307.2 |
0.060 |
| 2036 |
62.2 |
0.023 |
| 2037 |
264.8 |
0.059 |
| 2038 |
309.6 |
0.059 |
| 2039 |
79.7 |
0.021 |
| 2040 |
267.2 |
0.060 |
| 2041 |
312.1 |
0.058 |
| 2042 |
100.3 |
0.020 |
| 2043 |
269.5 |
0.061 |
| 2044 |
314.7 |
0.057 |
| 2045 |
123.7 |
0.019 |
| 2046 |
271.8 |
0.062 |
| 2047 |
317.5 |
0.055 |
| 2048 |
147.5 |
0.019 |
| 2049 |
274.0 |
0.063 |
| 2050 |
320.3 |
0.054 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
