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) |
79.6° (calc) |
|
| Sep first |
1.0 |
|
Sep last |
0.62 |
|
Sep. Now (ρ) |
0.406" (calc) |
|
| 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) | 60.43y | ± 0.3 |
Periastron (T) | 1964.52y | ± 0.2 |
Semi-major axis (a) | 0.624a | ± 0.002 |
| Eccentricity (e) | 0.349 | ± 0.003 |
Inclination (i) | 18.9° | ± 2 |
Longitude of periastron (ω) | 10.3° | ± 2 |
| Node (Ω) | 56.7° | ± 0.5 |
Notes | n | |
Reference | Doc2024b | |
| Equinox | 2000 | |
Last observation | 2023 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
262.1 |
0.815 |
| 2001 |
265.3 |
0.806 |
| 2002 |
268.5 |
0.795 |
| 2003 |
271.8 |
0.783 |
| 2004 |
275.2 |
0.769 |
| 2005 |
278.7 |
0.754 |
| 2006 |
282.4 |
0.738 |
| 2007 |
286.3 |
0.720 |
| 2008 |
290.4 |
0.702 |
| 2009 |
294.7 |
0.682 |
| 2010 |
299.2 |
0.662 |
| 2011 |
304.1 |
0.640 |
| 2012 |
309.3 |
0.618 |
| 2013 |
314.8 |
0.596 |
| 2014 |
320.9 |
0.573 |
| 2015 |
327.4 |
0.551 |
| 2016 |
334.5 |
0.528 |
| 2017 |
342.1 |
0.507 |
| 2018 |
350.5 |
0.487 |
| 2019 |
359.5 |
0.468 |
| 2020 |
9.3 |
0.451 |
| 2021 |
19.7 |
0.436 |
| 2022 |
30.8 |
0.424 |
| 2023 |
42.5 |
0.415 |
| 2024 |
54.7 |
0.409 |
| 2025 |
67.1 |
0.405 |
| 2026 |
79.6 |
0.406 |
| 2027 |
92.0 |
0.410 |
| 2028 |
104.0 |
0.418 |
| 2029 |
115.5 |
0.429 |
| 2030 |
126.3 |
0.445 |
| 2031 |
136.3 |
0.464 |
| 2032 |
145.4 |
0.485 |
| 2033 |
153.8 |
0.508 |
| 2034 |
161.4 |
0.532 |
| 2035 |
168.4 |
0.557 |
| 2036 |
174.7 |
0.582 |
| 2037 |
180.5 |
0.607 |
| 2038 |
185.9 |
0.631 |
| 2039 |
190.9 |
0.654 |
| 2040 |
195.5 |
0.677 |
| 2041 |
199.9 |
0.698 |
| 2042 |
204.0 |
0.718 |
| 2043 |
207.9 |
0.736 |
| 2044 |
211.6 |
0.753 |
| 2045 |
215.1 |
0.769 |
| 2046 |
218.6 |
0.783 |
| 2047 |
221.9 |
0.796 |
| 2048 |
225.1 |
0.807 |
| 2049 |
228.2 |
0.816 |
| 2050 |
231.2 |
0.824 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
