| Coord 2000 | 01015+6922 |
Discov num | A 2901 |
Comp | Coord arcsec 2000 | 01 01 30.15 +69 21 30.7 |
|||||
| Date first | 1917 |
Date last | 2018 |
Obs | 53 |
||||||
| Pa first | 10 |
Pa last | 64 |
P.A. Now (θ) | 66.6° |
||||||
| Sep first | 0.2 |
Sep last | 0.4 |
Sep. Now (ρ) | 0.4" |
||||||
| Mag pri | 7.12 |
Mag sec | 7.84 |
delta mag (ΔM) | 0.72 |
Spectral class | B9 (blue-white) |
||||
| Pri motion ra | -007 |
Sec motion ra | -007 |
||||||||
| Pri motion dec | -003 |
Sec motion dec | -003 |
||||||||
| Notes | |||||||||||
| Precise pa | 64.3 |
Precise sep | 0.438 |
Constellation | Cassiopeia |
SAO | 11526 |
||||
| HIP | 4789 |
Tycho2 | 4296-00103-1 |
HD | 5839 |
ADS | 836 |
||||
| BD | BD+68 64 |
Distance | 273.97 |
Distance ly | 893.69 |
last precise pa | 64.3 |
||||
| last precise sep | 0.438 |
| Period (P) | 1517.34y | ± 60.15 | Periastron (T) | 1950.56y | ± 61.32 | Semi-major axis (a) | 0.99a | ± 0.08 |
| Eccentricity (e) | 0.621 | ± 0.033 | Inclination (i) | 69.3° | ± 0.9 | Longitude of periastron (ω) | 330.2° | ± 0.9 |
| Node (Ω) | 48.4° | ± 0.7 | Note | Grade | 4 | (1=Definitive, 9=Indet.) | ||
| Equinox | 2000 | Last observation | 2001 |
|
|
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 |
| 01015+6922 | A 2901 | 2006 | 51 | 60 | 0.4 | 7.12 | 7.84 | B9 | N D | 010130.15+692130.7 | |
| 01015+6922 | A 2901 | 2018 | 52 | 64 | 0.4 | 7.12 | 7.84 | B9 | NO | 010130.15+692130.7 |