19496-5525 I 658 (HD 186836)
19h 49m 37.33s -55° 25' 27.5" P.A. 131.00 sep 1.2 mag 9.16,10.06 Sp G5V dist. 59.99 pc (195.69 l.y.)
| Coord 2000 |
19496-5525 |
|
Discov num |
I 658 |
|
Comp |
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Coord arcsec 2000 |
19 49 37.33 -55 25 27.5 |
|
| Date first |
1909 |
|
Date last |
2018 |
|
Obs |
34 |
|
| Pa first |
260 |
|
Pa last |
130.9 |
|
P.A. Now (θ) |
130.9° |
|
| Sep first |
0.6 |
|
Sep last |
1.225 |
|
Sep. Now (ρ) |
1.225" |
|
| Mag pri |
9.16 |
|
Mag sec |
10.06 |
|
delta mag (ΔM) |
0.9 |
|
Spectral class |
G5V (yellow) |
|
| Pri motion ra |
-007 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
+000 |
|
Sec motion dec |
+000 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 186836 |
|
Constellation |
Telescopium |
|
SAO |
246282 |
|
HIP |
97548 |
|
| Tycho2 |
8779-00757-1 |
|
Gaia DR2 |
6641145034582749184 |
|
HD |
186836 |
|
CP |
CP-55 9203 |
|
| Distance |
59.99 |
|
Distance ly |
195.69 |
|
ORBITAL ELEMENTS
| Period (P) | 416.8y | |
Periastron (T) | 1895.4y | |
Semi-major axis (a) | 1.098a | |
| Eccentricity (e) | 0.474 | |
Inclination (i) | 134° | |
Longitude of periastron (ω) | 169.8° | |
| Node (Ω) | 98.7° | |
Notes | | |
Reference | Doc2017i | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
140.2 |
1.086 |
| 2001 |
139.7 |
1.095 |
| 2002 |
139.2 |
1.103 |
| 2003 |
138.7 |
1.112 |
| 2004 |
138.1 |
1.120 |
| 2005 |
137.6 |
1.129 |
| 2006 |
137.1 |
1.137 |
| 2007 |
136.7 |
1.145 |
| 2008 |
136.2 |
1.153 |
| 2009 |
135.7 |
1.162 |
| 2010 |
135.2 |
1.170 |
| 2011 |
134.8 |
1.178 |
| 2012 |
134.3 |
1.186 |
| 2013 |
133.9 |
1.194 |
| 2014 |
133.4 |
1.201 |
| 2015 |
133.0 |
1.209 |
| 2016 |
132.5 |
1.217 |
| 2017 |
132.1 |
1.225 |
| 2018 |
131.7 |
1.232 |
| 2019 |
131.3 |
1.240 |
| 2020 |
130.9 |
1.247 |
| 2021 |
130.5 |
1.255 |
| 2022 |
130.1 |
1.262 |
| 2023 |
129.7 |
1.269 |
| 2024 |
129.3 |
1.276 |
| 2025 |
128.9 |
1.283 |
| 2026 |
128.5 |
1.291 |
| 2027 |
128.1 |
1.297 |
| 2028 |
127.7 |
1.304 |
| 2029 |
127.4 |
1.311 |
| 2030 |
127.0 |
1.318 |
|
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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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