Coord 2000 | 01158+0947 |
Discov num | A 2102 |
Comp | Coord arcsec 2000 | 01 15 46.78 +09 47 05.3 |
|||||
Date first | 1909 |
Date last | 2012 |
Obs | 26 |
||||||
Pa first | 149 |
Pa last | 112 |
P.A. Now (θ) | 99.5° |
||||||
Sep first | 0.5 |
Sep last | 0.2 |
Sep. Now (ρ) | 0.22" |
||||||
Mag pri | 7.36 |
Mag sec | 9.89 |
delta mag (ΔM) | 2.53 |
Spectral class | F4V (yellow-white) |
||||
Pri motion ra | -083 |
Sec motion ra | |||||||||
Pri motion dec | +043 |
Sec motion dec | |||||||||
Notes |
Constellation | Pisces |
HIP | 5898 |
Tycho2 | 0613-00226-1 |
HD | 7564 |
||||
ADS | 1016 |
BD | BD+09 142 |
Distance | 57.41 |
Distance ly | 187.27 |
||||
last precise pa | 111.7 |
last precise sep | 0.238 |
Period (P) | 162y | ± 13 | Periastron (T) | 2101y | ± 13 | Semi-major axis (a) | 0.607a | ± 0.035 |
Eccentricity (e) | 0.447 | ± 0.054 | Inclination (i) | 101.7° | ± 1 | Longitude of periastron (ω) | 262.8° | ± 6.6 |
Node (Ω) | 151.2° | ± 2.1 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | Last observation | 2012 |
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
![]() 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 |
01158+0947 | A 2102 | 1994 | 22 | 138 | 0.5 | 7.36 | 9.89 | F4V | NOD | 011546.78+094705.3 | |
01158+0947 | A 2102 | 2008 | 24 | 118 | 0.3 | 7.36 | 9.89 | F4V | NOD | 011546.78+094705.3 | |
01158+0947 | A 2102 | 2009 | 25 | 115 | 0.3 | 7.36 | 9.89 | F4V | NOD | 011546.78+094705.3 | |
01158+0947 | A 2102 | 2012 | 26 | 114 | 0.2 | 7.36 | 9.89 | F4V | NOD | 011546.78+094705.3 |