00063+5826 STF 3062 (V640 Cas)
00h 06m 15.81s +58° 26' 12.5" P.A. 7.00 sep 1.5 mag 6.42,7.32 Sp G3V+G8V dist. 21.48 pc (70.07 l.y.)
Coord 2000 |
00063+5826 |
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Discov num |
STF3062 |
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Comp |
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Coord arcsec 2000 |
00 06 15.81 +58 26 12.5 |
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Date first |
1823 |
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Date last |
2020 |
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Obs |
637 |
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Pa first |
37 |
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Pa last |
6.5 |
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P.A. Now (θ) |
10.9° |
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Sep first |
1.3 |
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Sep last |
1.53 |
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Sep. Now (ρ) |
1.522" |
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Mag pri |
6.42 |
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Mag sec |
7.32 |
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delta mag (ΔM) |
0.9 |
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Spectral class |
G3V+G8V (yellow/yellow) |
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Pri motion ra |
+238 |
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Sec motion ra |
+285 |
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Pri motion dec |
+037 |
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Sec motion dec |
+038 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.164 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
V640 Cas |
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Constellation |
Cassiopeia |
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SAO |
21085 |
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HIP |
518 |
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Tycho2 |
3664-01986-1 |
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Gaia DR2 |
423075173680043904 |
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HD |
123 |
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HR |
5 |
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GC |
88 |
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ADS |
61 |
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GL |
Gl 4.1A |
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BD |
BD+57 2865 |
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Distance |
21.48 |
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Distance ly |
70.07 |
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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 |
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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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