Coord 2000 | 01083+5455 | Discov num | WCK 1 | Comp | Aa,Ab | Coord arcsec 2000 | 01 08 16.36 +54 55 12.7 | ||||
Date first | 1973 | Date last | 2016 | Obs | 53 | ||||||
Pa first | 24 | Pa last | 18.4 | P.A. Now (θ) | 94.1° | ||||||
Sep first | 0.4 | Sep last | 0.447 | Sep. Now (ρ) | 0.498" | ||||||
Mag pri | 5.30 | Mag sec | 10.70 | delta mag (ΔM) | 5.4 | Spectral class | G5V+dM (yellow) | ||||
Pri motion ra | +342 | Sec motion ra | |||||||||
Pri motion dec | -160 | Sec motion dec | |||||||||
Notes | N O P (See Notes, Orbital solution, 100-year proper motion) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 22024 | 01 08 16 +54 55 13 | WCK 1 Aa,Ab | 2016 | 53 | 18 | 0.4 | 5.30 | 10.70 | 5.40 | Y | <=== | |
Show | Marfak | 22024 | 01 08 16 +54 55 13 | STT 551 AB | 2016 | 15 | 273 | 490.8 | 5.23 | 11.31 | 6.08 | ||
Show | 22024 | 01 08 16 +54 55 13 | BUP 14 AC | 1999 | 4 | 263 | 198.1 | 5.23 | 12.02 | 6.79 | |||
Show | 22024 | 01 08 16 +54 55 13 | BUP 14 AE | 1999 | 3 | 286 | 273.1 | 5.23 | 12.30 | 7.07 | |||
Show | 22024 | 01 08 16 +54 55 13 | STT 551 AF | 1999 | 4 | 298 | 589.0 | 5.23 | 13.00 | 7.77 | |||
Show | 01 07 53 +54 54 50 | BUP 14 CD | 2015 | 4 | 115 | 4.3 | 12.02 | 12.80 | 0.78 |
Var name | NSV405 Cas | Constellation | Cassiopeia | SAO | 22024 | HIP | 5336 | ||||
Tycho2 | 3673-01929-1 | HD | 6582 | HR | 321 | GC | 1360 | ||||
GL | Gl 53A | BD | BD+54 223 | Bayer | Mu Cassiopeiae | Bayer name | Mu Cas | ||||
Flamsteed | 30 Cassiopeiae | Flamsteed name | 30 Cas | FK5 | 1030 | Distance | 7.55 | ||||
Distance ly | 24.63 | Bayer greek | μ Cas |
Period (P) | 21.568y | ± 0.015 | Periastron (T) | 1997.2235y | ± 0.0067 | Semi-major axis (a) | 0.9985a | ± 0.0013 |
Eccentricity (e) | 0.5885 | ± 0.0011 | Inclination (i) | 110.671° | ± 0.064 | Longitude of periastron (ω) | 330.37° | ± 0.18 |
Node (Ω) | 223.868° | ± 0.064 | Notes | n | Reference | BdH2020 | ||
Equinox | Last observation | 2016 | Grade | 2 | (1=Definitive, 9=Indet.) |
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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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