02529+5300 A 2906 AB
02h 52m 52.03s +52° 59' 50.6" P.A. 115.00 sep 0.3 mag 7.26,8.78 Sp B8III dist. 307.69 pc (1003.68 l.y.)
Coord 2000 |
02529+5300 |
|
Discov num |
A 2906 |
|
Comp |
AB |
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Coord arcsec 2000 |
02 52 52.03 +52 59 50.6 |
|
Date first |
1917 |
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Date last |
2018 |
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Obs |
24 |
|
Pa first |
116 |
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Pa last |
114.5 |
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P.A. Now (θ) |
109.2° |
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Sep first |
0.2 |
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Sep last |
0.251 |
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Sep. Now (ρ) |
0.237" |
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Mag pri |
7.26 |
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Mag sec |
8.78 |
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delta mag (ΔM) |
1.52 |
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Spectral class |
B8III (blue-white) |
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Pri motion ra |
+002 |
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Sec motion ra |
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Pri motion dec |
-007 |
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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.
02529+5300 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
23674 |
02 52 52 +52 59 51 |
A 2906 AB |
2018 |
24 |
115 |
0.3 |
7.26 |
8.78 |
1.52 |
Y |
<=== |
Show |
NSV971 |
23674 |
02 52 52 +52 59 51 |
STF 314 AB,C |
2018 |
137 |
316 |
1.6 |
6.95 |
7.26 |
0.31 |
Y |
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Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
NSV971 |
|
Constellation |
Perseus |
|
SAO |
23674 |
|
HIP |
13424 |
|
Tycho2 |
3700-01745-1 |
|
Gaia DR2 |
453178393293943680 |
|
HD |
17743 |
|
HR |
846 |
|
GC |
3439 |
|
ADS |
2185 |
|
BD |
BD+52 640 |
|
Distance |
307.69 |
|
Distance ly |
1003.68 |
|
ORBITAL ELEMENTS
Period (P) | 85.782y | ± 4.6368 |
Periastron (T) | 1973.1096y | ± 2.6607 |
Semi-major axis (a) | 0.17508a | ± 0.0389 |
Eccentricity (e) | 0.91937 | ± 0.09176 |
Inclination (i) | 135.627° | ± 12.355 |
Longitude of periastron (ω) | 81.255° | ± 114.567 |
Node (Ω) | 11.385° | ± 89.281 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2005 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
123.8 |
0.226 |
2001 |
123.1 |
0.229 |
2002 |
122.4 |
0.231 |
2003 |
121.7 |
0.233 |
2004 |
121.0 |
0.235 |
2005 |
120.4 |
0.236 |
2006 |
119.7 |
0.238 |
2007 |
119.1 |
0.239 |
2008 |
118.5 |
0.240 |
2009 |
117.8 |
0.241 |
2010 |
117.2 |
0.242 |
2011 |
116.6 |
0.242 |
2012 |
116.0 |
0.243 |
2013 |
115.4 |
0.243 |
2014 |
114.8 |
0.243 |
2015 |
114.1 |
0.243 |
2016 |
113.5 |
0.243 |
2017 |
112.9 |
0.243 |
2018 |
112.3 |
0.242 |
2019 |
111.7 |
0.241 |
2020 |
111.1 |
0.241 |
2021 |
110.4 |
0.240 |
2022 |
109.8 |
0.238 |
2023 |
109.2 |
0.237 |
2024 |
108.5 |
0.236 |
2025 |
107.9 |
0.234 |
2026 |
107.2 |
0.232 |
2027 |
106.5 |
0.230 |
2028 |
105.8 |
0.228 |
2029 |
105.1 |
0.226 |
2030 |
104.4 |
0.224 |
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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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