Coord 2000 | 00369+3343 | Discov num | MKT 1 | Comp | Aa,Ab | Coord arcsec 2000 | 00 36 52.84 +33 43 09.7 | ||||
Date first | 1989 | Date last | 1992 | Obs | 32 | ||||||
Pa first | 106 | Pa last | 101.8 | P.A. Now (θ) | 101.8° | ||||||
Sep first | 0.0 | Sep last | 0.008 | Sep. Now (ρ) | 0.008" | ||||||
Mag pri | 4.90 | Mag sec | 5.30 | delta mag (ΔM) | 0.4 | Spectral class | B5V (blue-white) | ||||
Pri motion ra | +015 | Sec motion ra | |||||||||
Pri motion dec | -004 | Sec motion dec | |||||||||
Notes | N O (See Notes, Orbital solution) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 54033 | 00 36 53 +33 43 10 | MKT 1 Aa,Ab | 1992 | 32 | 102 | 0.0 | 4.90 | 5.30 | 0.40 | Y | <=== | |
Show | 54033 | 00 36 53 +33 43 10 | RBR 3 Aa,Ac | 2001 | 1 | 265 | 0.2 | 4.40 | 13.10 | 8.70 | |||
Show | Pi And | 54033 | 00 36 53 +33 43 10 | H 5 17 AB | 2019 | 77 | 175 | 36.2 | 4.36 | 7.08 | 2.72 | ||
Show | 54033 | 00 36 53 +33 43 10 | H 5 17 AC | 2016 | 11 | 356 | 55.2 | 4.36 | 13.01 | 8.65 |
Var name | NSV227 And | Constellation | Andromeda | SAO | 54033 | HIP | 2912 | ||||
Tycho2 | 2279-01665-1 | Gaia DR2 | 364936228611467520 | HD | 3369 | HR | 154 | ||||
GC | 729 | ADS | 513 | BD | BD+32 101 | Bayer | Pi Andromedae | ||||
Bayer name | Pi And | Flamsteed | 29 Andromedae | Flamsteed name | 29 And | FK5 | 18 | ||||
Distance | 183.49 | Distance ly | 598.54 | Bayer greek | π And |
Period (P) | 143.53d | ± 0.06 | Periastron (T) | 47717.7d (1989.522y) | ± 0.4 | Semi-major axis (a) | 6.69m | ± 0.05 |
Eccentricity (e) | 0.542 | ± 0.006 | Inclination (i) | 103° | ± 0.2 | Longitude of periastron (ω) | 170.7° | ± 0.7 |
Node (Ω) | 94.7° | ± 0.2 | Notes | n | Reference | MkT1995 | ||
Equinox | 2000 | Last observation | 1992 | Grade | 1 | (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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