23347+3748 YSC 139 (HD 221757)
23h 34m 41.14s +37° 47' 58.8" P.A. 93.00 sep 0.0 mag 7.90,8.20 Sp F8 dist. 53.05 pc (173.05 l.y.)
| Coord 2000 |
23347+3748 |
|
Discov num |
YSC 139 |
|
Comp |
|
|
Coord arcsec 2000 |
23 34 41.14 +37 47 58.8 |
|
| Date first |
2008 |
|
Date last |
2015 |
|
Obs |
14 |
|
| Pa first |
264 |
|
Pa last |
92.8 |
|
P.A. Now (θ) |
93.3° |
|
| Sep first |
0.0 |
|
Sep last |
0.03 |
|
Sep. Now (ρ) |
0.044" |
|
| Mag pri |
7.90 |
|
Mag sec |
8.20 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+115 |
|
Sec motion ra |
|
|
| Pri motion dec |
+094 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 221757 |
|
Constellation |
Andromeda |
|
SAO |
73347 |
|
HIP |
116360 |
|
| Tycho2 |
3231-01052-1 |
|
Gaia DR2 |
1918953867019478144 |
|
HD |
221757 |
|
BD |
BD+36 5082 |
|
| Distance |
53.05 |
|
Distance ly |
173.05 |
|
ORBITAL ELEMENTS
| Period (P) | 3.64y | ± 0.05 |
Periastron (T) | 2013.41y | ± 0.05 |
Semi-major axis (a) | 69m | ± 6 |
| Eccentricity (e) | 0.69 | ± 0.08 |
Inclination (i) | 87.9° | ± 0.8 |
Longitude of periastron (ω) | 274° | ± 2 |
| Node (Ω) | 90° | ± 2 |
Notes | n | |
Reference | Hor2015b | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
98.4 |
0.026 |
| 2001 |
260.5 |
0.025 |
| 2002 |
268.4 |
0.053 |
| 2003 |
92.3 |
0.047 |
| 2004 |
118.4 |
0.009 |
| 2005 |
265.0 |
0.040 |
| 2006 |
270.7 |
0.029 |
| 2007 |
94.8 |
0.037 |
| 2008 |
248.3 |
0.011 |
| 2009 |
267.1 |
0.051 |
| 2010 |
90.6 |
0.040 |
| 2011 |
100.1 |
0.022 |
| 2012 |
262.0 |
0.028 |
| 2013 |
268.7 |
0.051 |
| 2014 |
92.8 |
0.045 |
| 2015 |
139.2 |
0.006 |
| 2016 |
265.5 |
0.043 |
| 2017 |
273.4 |
0.012 |
| 2018 |
95.6 |
0.034 |
| 2019 |
254.0 |
0.015 |
| 2020 |
267.5 |
0.053 |
| 2021 |
91.1 |
0.044 |
| 2022 |
102.6 |
0.018 |
| 2023 |
263.0 |
0.032 |
| 2024 |
269.1 |
0.048 |
| 2025 |
93.3 |
0.044 |
| 2026 |
186.2 |
0.004 |
| 2027 |
266.0 |
0.046 |
| 2028 |
85.7 |
0.010 |
| 2029 |
96.5 |
0.031 |
| 2030 |
257.4 |
0.019 |
| 2031 |
267.8 |
0.053 |
| 2032 |
91.6 |
0.046 |
| 2033 |
106.5 |
0.014 |
| 2034 |
263.9 |
0.035 |
| 2035 |
269.6 |
0.043 |
| 2036 |
93.8 |
0.042 |
| 2037 |
226.9 |
0.006 |
| 2038 |
266.5 |
0.048 |
| 2039 |
89.3 |
0.027 |
| 2040 |
97.7 |
0.028 |
| 2041 |
259.7 |
0.023 |
| 2042 |
268.2 |
0.053 |
| 2043 |
92.1 |
0.047 |
| 2044 |
113.0 |
0.011 |
| 2045 |
264.7 |
0.039 |
| 2046 |
270.2 |
0.035 |
| 2047 |
94.4 |
0.039 |
| 2048 |
243.8 |
0.010 |
| 2049 |
266.9 |
0.050 |
| 2050 |
90.2 |
0.037 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
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