02020+7054 BU 513 AB (48 Cas)
02h 01m 57.55s +70° 54' 25.4" P.A. 320.00 sep 0.6 mag 4.65,6.74 Sp A3V dist. 35.26 pc (115.02 l.y.)
Coord 2000 |
02020+7054 |
|
Discov num |
BU 513 |
|
Comp |
AB |
|
Coord arcsec 2000 |
02 01 57.55 +70 54 25.4 |
|
Date first |
1878 |
|
Date last |
2013 |
|
Obs |
219 |
|
Pa first |
264 |
|
Pa last |
319.5 |
|
P.A. Now (θ) |
36.2° |
|
Sep first |
1.0 |
|
Sep last |
0.62 |
|
Sep. Now (ρ) |
0.412" |
|
Mag pri |
4.65 |
|
Mag sec |
6.74 |
|
delta mag (ΔM) |
2.09 |
|
Spectral class |
A3V (white) |
|
Pri motion ra |
-064 |
|
Sec motion ra |
-064 |
|
Pri motion dec |
+009 |
|
Sec motion dec |
+009 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
02020+7054 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
48 Cas |
4554 |
02 01 58 +70 54 25 |
BU 513 AB |
2013 |
219 |
320 |
0.6 |
4.65 |
6.74 |
2.09 |
Y |
<=== |
Show |
|
4554 |
02 01 58 +70 54 25 |
BU 513 AC |
2015 |
10 |
52 |
22.8 |
4.65 |
13.20 |
8.55 |
|
|
Show |
|
4554 |
02 01 58 +70 54 25 |
BU 513 AD |
2015 |
7 |
87 |
54.0 |
4.65 |
12.60 |
7.95 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
48 Cas |
|
Var name |
NSV694 Cas |
|
Constellation |
Cassiopeia |
|
SAO |
4554 |
|
HIP |
9480 |
|
Tycho2 |
4315-02126-1 |
|
Gaia DR2 |
522185735919412480 |
|
HD |
12111 |
|
HR |
575 |
|
GC |
2424 |
|
ADS |
1598 |
|
BD |
BD+70 153 |
|
Flamsteed |
48 Cassiopeiae |
|
Flamsteed name |
48 Cas |
|
Distance |
35.26 |
|
Distance ly |
115.02 |
|
ORBITAL ELEMENTS
Period (P) | 61.14y | ± 0.05 |
Periastron (T) | 1964.35y | ± 0.09 |
Semi-major axis (a) | 0.614a | ± 0.002 |
Eccentricity (e) | 0.355 | ± 0.001 |
Inclination (i) | 16.7° | ± 0.9 |
Longitude of periastron (ω) | 19.5° | ± 3.6 |
Node (Ω) | 48.2° | ± 3.2 |
Notes | n | |
Reference | DRs2012 | |
Equinox | | |
Last observation | 2010 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
262.0 |
0.805 |
2001 |
265.1 |
0.796 |
2002 |
268.3 |
0.786 |
2003 |
271.5 |
0.775 |
2004 |
274.9 |
0.762 |
2005 |
278.4 |
0.749 |
2006 |
282.0 |
0.734 |
2007 |
285.8 |
0.718 |
2008 |
289.7 |
0.701 |
2009 |
293.9 |
0.683 |
2010 |
298.3 |
0.664 |
2011 |
302.9 |
0.644 |
2012 |
307.9 |
0.623 |
2013 |
313.1 |
0.602 |
2014 |
318.8 |
0.581 |
2015 |
325.0 |
0.559 |
2016 |
331.6 |
0.537 |
2017 |
338.7 |
0.516 |
2018 |
346.5 |
0.495 |
2019 |
355.0 |
0.475 |
2020 |
4.2 |
0.456 |
2021 |
14.1 |
0.439 |
2022 |
24.8 |
0.424 |
2023 |
36.2 |
0.412 |
2024 |
48.2 |
0.402 |
2025 |
60.7 |
0.396 |
2026 |
73.5 |
0.394 |
2027 |
86.3 |
0.396 |
2028 |
98.8 |
0.402 |
2029 |
110.8 |
0.413 |
2030 |
122.0 |
0.428 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|