19027+4307 YSC 13 (HD 177412)
19h 02m 39.41s +43° 07' 02.9" P.A. 107.00 sep 0.1 mag 8.30,9.20 Sp F6IV dist. 100.2 pc (326.85 l.y.)
| Coord 2000 |
19027+4307 |
|
Discov num |
YSC 13 |
|
Comp |
|
|
Coord arcsec 2000 |
19 02 39.41 +43 07 02.9 |
|
| Date first |
2006 |
|
Date last |
2019 |
|
Obs |
20 |
|
| Pa first |
113 |
|
Pa last |
107 |
|
P.A. Now (θ) |
153.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.112 |
|
Sep. Now (ρ) |
0.105" |
|
| Mag pri |
8.30 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
0.9 |
|
Spectral class |
F6IV (yellow-white) |
|
| Pri motion ra |
+048 |
|
Sec motion ra |
|
|
| Pri motion dec |
+007 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 177412 |
|
Constellation |
Lyra |
|
SAO |
48028 |
|
HIP |
93511 |
|
| Tycho2 |
3128-00005-1 |
|
Gaia DR2 |
2105730488509329920 |
|
HD |
177412 |
|
BD |
BD+42 3233 |
|
| Distance |
100.2 |
|
Distance ly |
326.85 |
|
ORBITAL ELEMENTS
| Period (P) | 11.937y | |
Periastron (T) | 2014.324y | |
Semi-major axis (a) | 0.094a | |
| Eccentricity (e) | 0.761 | |
Inclination (i) | 44.4° | |
Longitude of periastron (ω) | 267.3° | |
| Node (Ω) | 41.4° | |
Notes | n | |
Reference | Doc2013j | |
| Equinox | 2000 | |
Last observation | 2012 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
164.6 |
0.094 |
| 2001 |
181.9 |
0.075 |
| 2002 |
220.8 |
0.039 |
| 2003 |
52.3 |
0.051 |
| 2004 |
80.1 |
0.083 |
| 2005 |
94.8 |
0.100 |
| 2006 |
106.0 |
0.110 |
| 2007 |
115.6 |
0.116 |
| 2008 |
124.5 |
0.118 |
| 2009 |
133.3 |
0.117 |
| 2010 |
142.6 |
0.113 |
| 2011 |
152.9 |
0.105 |
| 2012 |
165.5 |
0.093 |
| 2013 |
183.3 |
0.073 |
| 2014 |
226.6 |
0.035 |
| 2015 |
55.1 |
0.054 |
| 2016 |
81.2 |
0.084 |
| 2017 |
95.6 |
0.101 |
| 2018 |
106.6 |
0.111 |
| 2019 |
116.1 |
0.116 |
| 2020 |
125.0 |
0.118 |
| 2021 |
133.9 |
0.117 |
| 2022 |
143.2 |
0.113 |
| 2023 |
153.6 |
0.105 |
| 2024 |
166.4 |
0.092 |
| 2025 |
184.8 |
0.072 |
| 2026 |
233.8 |
0.031 |
| 2027 |
57.7 |
0.056 |
| 2028 |
82.3 |
0.085 |
| 2029 |
96.4 |
0.101 |
| 2030 |
107.2 |
0.111 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
