Coord 2000 | 04025+0638 |
Discov num | HDS 510 |
Comp | Coord arcsec 2000 | 04 02 32.85 +06 37 52.1 |
|||||
Date first | 1991 |
Date last | 2015 |
Obs | 11 |
||||||
Pa first | 100 |
Pa last | 57 |
P.A. Now (θ) | 66.9° |
||||||
Sep first | 0.3 |
Sep last | 0.1 |
Sep. Now (ρ) | 0.18" |
||||||
Mag pri | 11.37 |
Mag sec | 11.81 |
delta mag (ΔM) | 0.44 |
Spectral class | K7 (yellow-orange) |
||||
Pri motion ra | -030 |
Sec motion ra | |||||||||
Pri motion dec | -006 |
Sec motion dec | |||||||||
Notes |
Constellation | Taurus |
HIP | 18856 |
Tycho2 | 0079-00983-1 |
BD | BD+06 620 |
||||
Distance | 70.57 |
Distance ly | 230.2 |
last precise pa | 56.7 |
last precise sep | 0.134 |
Period (P) | 42y | Periastron (T) | 2009.43y | Semi-major axis (a) | 0.175a | |||
Eccentricity (e) | 0.593 | Inclination (i) | 58.4° | Longitude of periastron (ω) | 185.6° | |||
Node (Ω) | 87.8° | Note | Grade | 3 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2015 |
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 |
04025+0638 | HDS 510 | 2001 | 4 | 121 | 0.1 | 11.37 | 11.81 | K7 | D | 040232.85+063752.1 | |
04025+0638 | HDS 510 | 2004 | 5 | 150 | 0.1 | 11.37 | 11.81 | K7 | D | 040232.85+063752.1 | |
04025+0638 | HDS 510 | 2008 | 6 | 254 | 0.1 | 11.37 | 11.81 | K7 | D | 040232.85+063752.1 | |
04025+0638 | HDS 510 | 2015 | 7 | 57 | 0.1 | 11.37 | 11.81 | K7 | 040232.85+063752.1 |