22493+1517 HDS 3241 (HD 216027)
22h 49m 17.31s +15° 16' 32.6" P.A. 283.00 sep 0.2 mag 8.69,11.03 Sp G5 dist. 92.85 pc (302.88 l.y.)
| Coord 2000 |
22493+1517 |
|
Discov num |
HDS3241 |
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Comp |
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Coord arcsec 2000 |
22 49 17.31 +15 16 32.6 |
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| Date first |
1991 |
|
Date last |
2018 |
|
Obs |
18 |
|
| Pa first |
343 |
|
Pa last |
283 |
|
P.A. Now (θ) |
292.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.181 |
|
Sep. Now (ρ) |
0.231" |
|
| Mag pri |
8.69 |
|
Mag sec |
11.03 |
|
delta mag (ΔM) |
2.34 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-010 |
|
Sec motion ra |
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|
| Pri motion dec |
-048 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 216027 |
|
Constellation |
Pegasus |
|
SAO |
108202 |
|
HIP |
112695 |
|
| Tycho2 |
1698-01099-1 |
|
Gaia DR2 |
2828548156999157760 |
|
HD |
216027 |
|
BD |
BD+14 4876 |
|
| Distance |
92.85 |
|
Distance ly |
302.88 |
|
ORBITAL ELEMENTS
| Period (P) | 92.5y | ± 12.9 |
Periastron (T) | 2005.6y | ± 0.1 |
Semi-major axis (a) | 0.235a | ± 0.022 |
| Eccentricity (e) | 0.703 | ± 0.028 |
Inclination (i) | 52.6° | ± 1.6 |
Longitude of periastron (ω) | 348.7° | ± 1.6 |
| Node (Ω) | 144.9° | ± 1.6 |
Notes | | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
19.4 |
0.095 |
| 2001 |
31.8 |
0.079 |
| 2002 |
49.8 |
0.066 |
| 2003 |
74.4 |
0.059 |
| 2004 |
101.7 |
0.059 |
| 2005 |
125.7 |
0.066 |
| 2006 |
145.6 |
0.070 |
| 2007 |
163.9 |
0.071 |
| 2008 |
182.4 |
0.070 |
| 2009 |
201.0 |
0.071 |
| 2010 |
218.6 |
0.075 |
| 2011 |
233.6 |
0.083 |
| 2012 |
245.7 |
0.093 |
| 2013 |
255.2 |
0.105 |
| 2014 |
262.7 |
0.118 |
| 2015 |
268.7 |
0.131 |
| 2016 |
273.6 |
0.145 |
| 2017 |
277.6 |
0.158 |
| 2018 |
281.1 |
0.171 |
| 2019 |
284.0 |
0.184 |
| 2020 |
286.6 |
0.196 |
| 2021 |
288.9 |
0.208 |
| 2022 |
290.9 |
0.220 |
| 2023 |
292.7 |
0.231 |
| 2024 |
294.4 |
0.242 |
| 2025 |
295.9 |
0.252 |
| 2026 |
297.3 |
0.262 |
| 2027 |
298.6 |
0.272 |
| 2028 |
299.8 |
0.281 |
| 2029 |
301.0 |
0.290 |
| 2030 |
302.0 |
0.298 |
|
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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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