00063+5826 STF 3062 (V640 Cas)
00h 06m 15.81s +58° 26' 12.5" P.A. 8.00 sep 1.5 mag 6.42,7.32 Sp G3V+G8V dist. 21.48 pc (70.07 l.y.)
| Coord 2000 |
00063+5826 |
|
Discov num |
STF3062 |
|
Comp |
|
|
Coord arcsec 2000 |
00 06 15.81 +58 26 12.5 |
|
| Date first |
1823 |
|
Date last |
2021 |
|
Obs |
639 |
|
| Pa first |
37 |
|
Pa last |
8.4 |
|
P.A. Now (θ) |
14.7° |
|
| Sep first |
1.3 |
|
Sep last |
1.515 |
|
Sep. Now (ρ) |
1.502" |
|
| Mag pri |
6.42 |
|
Mag sec |
7.32 |
|
delta mag (ΔM) |
0.9 |
|
Spectral class |
G3V+G8V (yellow/yellow) |
|
| Pri motion ra |
+238 |
|
Sec motion ra |
+285 |
|
| Pri motion dec |
+037 |
|
Sec motion dec |
+038 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.164 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V640 Cas |
|
Constellation |
Cassiopeia |
|
SAO |
21085 |
|
HIP |
518 |
|
| Tycho2 |
3664-01986-1 |
|
Gaia DR2 |
423075173680043904 |
|
HD |
123 |
|
HR |
5 |
|
| GC |
88 |
|
ADS |
61 |
|
BD |
BD+57 2865 |
|
Distance |
21.48 |
|
| Distance ly |
70.07 |
|
ORBITAL ELEMENTS
| Period (P) | 106.7y | |
Periastron (T) | 1943.1y | |
Semi-major axis (a) | 1.44a | |
| Eccentricity (e) | 0.45 | |
Inclination (i) | 45° | |
Longitude of periastron (ω) | 277° | |
| Node (Ω) | 221° | |
Notes | n | |
Reference | Sod1999 | |
| Equinox | 2000 | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
327.9 |
1.504 |
| 2001 |
329.8 |
1.508 |
| 2002 |
331.7 |
1.513 |
| 2003 |
333.7 |
1.518 |
| 2004 |
335.6 |
1.522 |
| 2005 |
337.5 |
1.527 |
| 2006 |
339.4 |
1.531 |
| 2007 |
341.3 |
1.535 |
| 2008 |
343.1 |
1.539 |
| 2009 |
345.0 |
1.542 |
| 2010 |
346.8 |
1.545 |
| 2011 |
348.7 |
1.548 |
| 2012 |
350.5 |
1.550 |
| 2013 |
352.4 |
1.552 |
| 2014 |
354.2 |
1.553 |
| 2015 |
356.0 |
1.553 |
| 2016 |
357.9 |
1.553 |
| 2017 |
359.7 |
1.552 |
| 2018 |
1.5 |
1.550 |
| 2019 |
3.4 |
1.547 |
| 2020 |
5.2 |
1.542 |
| 2021 |
7.1 |
1.537 |
| 2022 |
9.0 |
1.530 |
| 2023 |
10.9 |
1.522 |
| 2024 |
12.8 |
1.513 |
| 2025 |
14.7 |
1.502 |
| 2026 |
16.7 |
1.489 |
| 2027 |
18.7 |
1.474 |
| 2028 |
20.8 |
1.457 |
| 2029 |
22.9 |
1.438 |
| 2030 |
25.0 |
1.416 |
| 2031 |
27.3 |
1.392 |
| 2032 |
29.6 |
1.366 |
| 2033 |
32.0 |
1.336 |
| 2034 |
34.6 |
1.304 |
| 2035 |
37.2 |
1.268 |
| 2036 |
40.1 |
1.228 |
| 2037 |
43.1 |
1.185 |
| 2038 |
46.4 |
1.138 |
| 2039 |
50.0 |
1.087 |
| 2040 |
53.9 |
1.033 |
| 2041 |
58.3 |
0.975 |
| 2042 |
63.2 |
0.913 |
| 2043 |
68.9 |
0.850 |
| 2044 |
75.5 |
0.785 |
| 2045 |
83.3 |
0.722 |
| 2046 |
92.6 |
0.663 |
| 2047 |
103.5 |
0.614 |
| 2048 |
116.0 |
0.578 |
| 2049 |
129.7 |
0.562 |
| 2050 |
143.6 |
0.567 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
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