01108+6747 HDS 155 (HD 6840)
01h 10m 50.74s +67° 46' 48.2" P.A. 174.00 sep 0.1 mag 7.22,7.68 Sp G0IV+G0IV dist. 54.64 pc (178.24 l.y.)
| Coord 2000 |
01108+6747 |
|
Discov num |
HDS 155 |
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Comp |
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Coord arcsec 2000 |
01 10 50.74 +67 46 48.2 |
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| Date first |
1991 |
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Date last |
2013 |
|
Obs |
27 |
|
| Pa first |
165 |
|
Pa last |
174 |
|
P.A. Now (θ) |
189.2° |
|
| Sep first |
0.1 |
|
Sep last |
0.133 |
|
Sep. Now (ρ) |
0.103" |
|
| Mag pri |
7.22 |
|
Mag sec |
7.68 |
|
delta mag (ΔM) |
0.46 |
|
Spectral class |
G0IV+G0IV (yellow/yellow) |
|
| Pri motion ra |
+250 |
|
Sec motion ra |
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| Pri motion dec |
+024 |
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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
| Name |
HD 6840 |
|
Constellation |
Cassiopeia |
|
SAO |
11614 |
|
HIP |
5531 |
|
| Tycho2 |
4296-01443-1 |
|
Gaia DR2 |
526537396786294784 |
|
HD |
6840 |
|
GC |
1409 |
|
| BD |
BD+67 98 |
|
Distance |
54.64 |
|
Distance ly |
178.24 |
|
ORBITAL ELEMENTS
| Period (P) | 7.453y | |
Periastron (T) | 1995.5y | |
Semi-major axis (a) | 0.083a | |
| Eccentricity (e) | 0.744 | |
Inclination (i) | 52° | |
Longitude of periastron (ω) | 215° | |
| Node (Ω) | 151.8° | |
Notes | | |
Reference | Doc2018i | |
| Equinox | 2000 | |
Last observation | 2013 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
182.0 |
0.118 |
| 2001 |
194.4 |
0.091 |
| 2002 |
222.5 |
0.052 |
| 2003 |
16.0 |
0.016 |
| 2004 |
148.8 |
0.086 |
| 2005 |
161.3 |
0.121 |
| 2006 |
169.7 |
0.132 |
| 2007 |
177.8 |
0.126 |
| 2008 |
188.0 |
0.105 |
| 2009 |
205.8 |
0.071 |
| 2010 |
270.6 |
0.031 |
| 2011 |
136.5 |
0.057 |
| 2012 |
156.6 |
0.109 |
| 2013 |
166.1 |
0.129 |
| 2014 |
174.0 |
0.130 |
| 2015 |
182.9 |
0.116 |
| 2016 |
196.0 |
0.088 |
| 2017 |
227.7 |
0.048 |
| 2018 |
68.3 |
0.017 |
| 2019 |
150.4 |
0.091 |
| 2020 |
162.2 |
0.123 |
| 2021 |
170.4 |
0.132 |
| 2022 |
178.6 |
0.124 |
| 2023 |
189.2 |
0.103 |
| 2024 |
208.5 |
0.067 |
| 2025 |
284.9 |
0.029 |
| 2026 |
140.0 |
0.064 |
| 2027 |
157.7 |
0.112 |
| 2028 |
166.8 |
0.130 |
| 2029 |
174.8 |
0.129 |
| 2030 |
183.9 |
0.114 |
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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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