00243+5201 HU 506 (NSV155)
00h 24m 15.64s +52° 01' 11.7" P.A. 105.00 sep 0.1 mag 5.95,6.84 Sp B5IV dist. 306.75 pc (1000.62 l.y.)
| Coord 2000 |
00243+5201 |
|
Discov num |
HU 506 |
|
Comp |
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|
Coord arcsec 2000 |
00 24 15.64 +52 01 11.7 |
|
| Date first |
1902 |
|
Date last |
2010 |
|
Obs |
41 |
|
| Pa first |
217 |
|
Pa last |
104.9 |
|
P.A. Now (θ) |
149.5° |
|
| Sep first |
0.2 |
|
Sep last |
0.112 |
|
Sep. Now (ρ) |
0.12" |
|
| Mag pri |
5.95 |
|
Mag sec |
6.84 |
|
delta mag (ΔM) |
0.89 |
|
Spectral class |
B5IV (blue-white) |
|
| Pri motion ra |
+017 |
|
Sec motion ra |
|
|
| Pri motion dec |
-003 |
|
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
| Var name |
NSV155 |
|
Constellation |
Cassiopeia |
|
SAO |
21366 |
|
HIP |
1921 |
|
| Tycho2 |
3260-02342-1 |
|
Gaia DR2 |
418916648901801728 |
|
HD |
1976 |
|
HR |
91 |
|
| GC |
476 |
|
ADS |
328 |
|
BD |
BD+51 62 |
|
Distance |
306.75 |
|
| Distance ly |
1000.62 |
|
ORBITAL ELEMENTS
| Period (P) | 169.76y | ± 3.29 |
Periastron (T) | 1953.643y | ± 2.245 |
Semi-major axis (a) | 0.211a | ± 0.097 |
| Eccentricity (e) | 0.176 | ± 0.023 |
Inclination (i) | 64° | ± 16 |
Longitude of periastron (ω) | 308.2° | ± 9.4 |
| Node (Ω) | 29° | ± 12 |
Notes | n | |
Reference | Hmn2018 | |
| Equinox | 2000 | |
Last observation | 2004 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
72.9 |
0.128 |
| 2001 |
75.4 |
0.125 |
| 2002 |
78.1 |
0.122 |
| 2003 |
80.9 |
0.119 |
| 2004 |
83.9 |
0.116 |
| 2005 |
86.9 |
0.114 |
| 2006 |
90.1 |
0.112 |
| 2007 |
93.5 |
0.110 |
| 2008 |
96.9 |
0.108 |
| 2009 |
100.5 |
0.106 |
| 2010 |
104.1 |
0.105 |
| 2011 |
107.8 |
0.104 |
| 2012 |
111.6 |
0.104 |
| 2013 |
115.3 |
0.104 |
| 2014 |
119.1 |
0.104 |
| 2015 |
122.9 |
0.105 |
| 2016 |
126.6 |
0.105 |
| 2017 |
130.2 |
0.107 |
| 2018 |
133.7 |
0.108 |
| 2019 |
137.1 |
0.110 |
| 2020 |
140.4 |
0.112 |
| 2021 |
143.6 |
0.115 |
| 2022 |
146.6 |
0.117 |
| 2023 |
149.5 |
0.120 |
| 2024 |
152.3 |
0.123 |
| 2025 |
154.9 |
0.126 |
| 2026 |
157.4 |
0.130 |
| 2027 |
159.7 |
0.133 |
| 2028 |
162.0 |
0.137 |
| 2029 |
164.1 |
0.140 |
| 2030 |
166.1 |
0.144 |
|
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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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