23167+3441 HDS 3315
23h 16m 44.08s +34° 40' 48.6" P.A. 203.00 sep 0.2 mag 11.25,11.75 Sp K8V dist. 99.9 pc (325.87 l.y.)
| Coord 2000 |
23167+3441 |
|
Discov num |
HDS3315 |
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Comp |
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Coord arcsec 2000 |
23 16 44.08 +34 40 48.6 |
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| Date first |
1991 |
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Date last |
2013 |
|
Obs |
21 |
|
| Pa first |
12 |
|
Pa last |
202.5 |
|
P.A. Now (θ) |
202.5° |
|
| Sep first |
0.1 |
|
Sep last |
0.219 |
|
Sep. Now (ρ) |
0.219" |
|
| Mag pri |
11.25 |
|
Mag sec |
11.75 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
K8V (yellow-orange) |
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| Pri motion ra |
-015 |
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Sec motion ra |
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| Pri motion dec |
-114 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
HIP |
114927 |
|
Tycho2 |
2760-01127-1 |
|
Gaia DR2 |
1911673214554816000 |
|
| BD |
BD+33 4679 |
|
Distance |
99.9 |
|
Distance ly |
325.87 |
|
ORBITAL ELEMENTS
| Period (P) | 33.378y | ± 1.031 |
Periastron (T) | 1996.124y | ± 1.194 |
Semi-major axis (a) | 0.1311a | ± 0.0076 |
| Eccentricity (e) | 0.815 | ± 0.456 |
Inclination (i) | 113.5° | ± 7 |
Longitude of periastron (ω) | 355.4° | ± 10 |
| Node (Ω) | 23° | ± 7.7 |
Notes | | |
Reference | Cve2014 | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
222.1 |
0.103 |
| 2001 |
218.7 |
0.125 |
| 2002 |
216.4 |
0.145 |
| 2003 |
214.5 |
0.162 |
| 2004 |
213.0 |
0.177 |
| 2005 |
211.8 |
0.190 |
| 2006 |
210.7 |
0.201 |
| 2007 |
209.6 |
0.211 |
| 2008 |
208.7 |
0.219 |
| 2009 |
207.8 |
0.225 |
| 2010 |
207.0 |
0.230 |
| 2011 |
206.2 |
0.234 |
| 2012 |
205.5 |
0.236 |
| 2013 |
204.7 |
0.237 |
| 2014 |
203.9 |
0.237 |
| 2015 |
203.2 |
0.235 |
| 2016 |
202.4 |
0.232 |
| 2017 |
201.6 |
0.227 |
| 2018 |
200.7 |
0.221 |
| 2019 |
199.8 |
0.214 |
| 2020 |
198.8 |
0.204 |
| 2021 |
197.8 |
0.193 |
| 2022 |
196.5 |
0.180 |
| 2023 |
195.1 |
0.165 |
| 2024 |
193.3 |
0.147 |
| 2025 |
191.0 |
0.127 |
| 2026 |
187.8 |
0.103 |
| 2027 |
182.3 |
0.075 |
| 2028 |
168.8 |
0.042 |
| 2029 |
79.8 |
0.016 |
| 2030 |
341.4 |
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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