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 |
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Discov num |
YSC 139 |
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Comp |
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Coord arcsec 2000 |
23 34 41.14 +37 47 58.8 |
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Date first |
2008 |
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Date last |
2015 |
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Obs |
14 |
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Pa first |
264 |
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Pa last |
92.8 |
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P.A. Now (θ) |
263° |
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Sep first |
0.0 |
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Sep last |
0.03 |
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Sep. Now (ρ) |
0.032" |
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Mag pri |
7.90 |
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Mag sec |
8.20 |
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delta mag (ΔM) |
0.3 |
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Spectral class |
F8 (yellow-white) |
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Pri motion ra |
+115 |
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Sec motion ra |
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Pri motion dec |
+094 |
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Sec motion dec |
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Notes |
N
(See Notes) |
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Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 221757 |
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Constellation |
Andromeda |
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SAO |
73347 |
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HIP |
116360 |
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Tycho2 |
3231-01052-1 |
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Gaia DR2 |
1918953867019478144 |
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HD |
221757 |
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BD |
BD+36 5082 |
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Distance |
53.05 |
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Distance ly |
173.05 |
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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 |
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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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