23361+1827 YSC 229 (HD 221914)
23h 36m 05.58s +18° 26' 31.9" P.A. 345.00 sep 0.0 mag 8.30,8.40 Sp G5V dist. 36.6 pc (119.39 l.y.)
| Coord 2000 |
23361+1827 |
|
Discov num |
YSC 229 |
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Comp |
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Coord arcsec 2000 |
23 36 05.58 +18 26 31.9 |
|
| Date first |
2011 |
|
Date last |
2011 |
|
Obs |
2 |
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| Pa first |
336 |
|
Pa last |
344.7 |
|
P.A. Now (θ) |
344.7° |
|
| Sep first |
0.0 |
|
Sep last |
0.025 |
|
Sep. Now (ρ) |
0.025" |
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| Mag pri |
8.30 |
|
Mag sec |
8.40 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
G5V (yellow) |
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| Pri motion ra |
+686 |
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Sec motion ra |
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| Pri motion dec |
+212 |
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Sec motion dec |
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| Notes |
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Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 221914 |
|
Constellation |
Pegasus |
|
SAO |
108707 |
|
HIP |
116478 |
|
| Tycho2 |
1723-01058-1 |
|
HD |
221914 |
|
GC |
32816 |
|
BD |
BD+17 4946 |
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| Distance |
36.6 |
|
Distance ly |
119.39 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 23361+1827 |
| coord_arcsec_2000 | 233605.58+182631.9 |
| Period (P) | 1810d (4.96y) | |
Periastron (T) | 47403d (1988.661y) | |
Semi-major axis (a) | 20.9m | ± 1.1 |
| Eccentricity (e) | 0.33 | |
Inclination (i) | 109.8° | ± 6.8 |
Longitude of periastron (ω) | 304.3° | |
| Node (Ω) | 129.1° | ± 7.8 |
Notes | | |
Reference | Jnc2005 | |
| Equinox | | |
Last observation | 1992 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
67.1 |
0.009 |
| 2001-01-01 |
337.2 |
0.017 |
| 2002-01-01 |
314.7 |
0.024 |
| 2003-01-01 |
284.5 |
0.011 |
| 2004-01-01 |
126.0 |
0.016 |
| 2005-01-01 |
61.6 |
0.009 |
| 2006-01-01 |
335.7 |
0.017 |
| 2007-01-01 |
313.9 |
0.024 |
| 2008-01-01 |
280.4 |
0.010 |
| 2009-01-01 |
124.3 |
0.016 |
| 2010-01-01 |
55.8 |
0.009 |
| 2011-01-01 |
334.3 |
0.018 |
| 2012-01-01 |
313.1 |
0.024 |
| 2013-01-01 |
275.1 |
0.009 |
| 2014-01-01 |
122.6 |
0.016 |
| 2015-01-01 |
49.9 |
0.009 |
| 2016-01-01 |
332.9 |
0.018 |
| 2017-01-01 |
312.3 |
0.024 |
| 2018-01-01 |
268.2 |
0.008 |
| 2019-01-01 |
120.9 |
0.016 |
| 2020-01-01 |
43.9 |
0.009 |
| 2021-01-01 |
331.6 |
0.019 |
| 2022-01-01 |
311.6 |
0.024 |
| 2023-01-01 |
259.1 |
0.007 |
| 2024-01-01 |
119.2 |
0.016 |
| 2025-01-01 |
37.9 |
0.009 |
| 2026-01-01 |
330.4 |
0.020 |
| 2027-01-01 |
310.7 |
0.023 |
| 2028-01-01 |
246.9 |
0.006 |
| 2029-01-01 |
117.5 |
0.016 |
| 2030-01-01 |
32.0 |
0.009 |
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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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