Coord 2000 | 02460-0457 |
Discov num | BU 83 |
Comp | Coord arcsec 2000 | 02 45 59.63 -04 57 23.2 |
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Date first | 1872 |
Date last | 2015 |
Obs | 66 |
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Pa first | 125 |
Pa last | 13 |
P.A. Now (θ) | 13° |
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Sep first | 1.0 |
Sep last | 1.0 |
Sep. Now (ρ) | 1" |
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Mag pri | 7.73 |
Mag sec | 9.64 |
delta mag (ΔM) | 1.91 |
Spectral class | F2 (yellow-white) |
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Pri motion ra | +050 |
Sec motion ra | +050 |
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Pri motion dec | +002 |
Sec motion dec | +002 |
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Notes |
Constellation | Eridanus |
HIP | 12912 |
Tycho2 | 4702-00556-1 |
HD | 17251 |
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ADS | 2111 |
BD | BD-05 514 |
Distance | 75.87 |
Distance ly | 247.49 |
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last precise pa | 12.8 |
last precise sep | 0.984 |
Period (P) | 36y | Periastron (T) | 1900.5y | Semi-major axis (a) | 0.08a | |||
Eccentricity (e) | 0.15 | Inclination (i) | 50° | Longitude of periastron (ω) | 280° | |||
Node (Ω) | 110° | Note | Grade | 9 | (1=Definitive, 9=Indet.) | |||
Equinox | 1900 | Last observation | 1968 |
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 |
Period (P) | 716.26y | Periastron (T) | 2418.03y | Semi-major axis (a) | 2.38a | |||
Eccentricity (e) | 0.51 | Inclination (i) | 101.4° | Longitude of periastron (ω) | 290.2° | |||
Node (Ω) | 147.7° | Note | Grade | 5 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2010 |
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 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
02460-0457 | BU 83 | 2007 | 56 | 16 | 0.9 | 7.73 | 9.64 | F2 | NOD | 024559.63-045723.2 | |
02460-0457 | BU 83 | 2008 | 58 | 17 | 0.9 | 7.73 | 9.64 | F2 | NOD | 024559.63-045723.2 | |
02460-0457 | BU 83 | 2010 | 59 | 14 | 1.0 | 7.73 | 9.64 | F2 | NOD | 024559.63-045723.2 | |
02460-0457 | BU 83 | 2012 | 62 | 14 | 1.0 | 7.73 | 9.64 | F2 | NO | 024559.63-045723.2 | |
02460-0457 | BU 83 | 2015 | 63 | 13 | 1.0 | 7.73 | 9.64 | F2 | NO | 024559.63-045723.2 |