Coord 2000 | 20329+1142 |
Discov num | J 1 |
Comp | AB |
Coord arcsec 2000 | 20 32 52.76 +11 44 37.2 |
||||
Date first | 1909 |
Date last | 2018 |
Obs | 36 |
||||||
Pa first | 38 |
Pa last | 58 |
P.A. Now (θ) | 55.8° |
||||||
Sep first | 0.9 |
Sep last | 1.9 |
Sep. Now (ρ) | 2.13" |
||||||
Mag pri | 10.04 |
Mag sec | 10.57 |
delta mag (ΔM) | 0.53 |
Spectral class | |||||
Pri motion ra | -054 |
Sec motion ra | -054 |
||||||||
Pri motion dec | -021 |
Sec motion dec | -022 |
||||||||
Notes | O
(Orbital solution) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 20 32 53 +11 44 37 | J 1 AB | 2018 | 36 | 56 | 2.1 | 10.04 | 10.57 | 0.53 | Y | <=== | ||
Show | 20 32 53 +11 44 37 | UC 4212 AC | 2015 | 4 | 255 | 28.8 | 10.04 | 15.30 | 5.26 |
Precise pa | 58.2 |
Precise sep | 1.913 |
Constellation | Delphinus |
Tycho2 | 1095-00816-1 |
||||
Gaia DR2 | 1755396220997391744 |
ADS | 13983 |
last precise pa | 58.2 |
last precise sep | 1.913 |
Period (P) | 528.391y | ± 34.998 | Periastron (T) | 2396.217y | ± 5.49 | Semi-major axis (a) | 1.5446a | ± 0.1719 |
Eccentricity (e) | 0.745 | ± 0.1554 | Inclination (i) | 58.5° | ± 3.4 | Longitude of periastron (ω) | 228.4° | ± 10.4 |
Node (Ω) | 38.8° | ± 5.3 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | Last observation | 1991 |
|
|
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 |
20329+1142 | J 1 | AB | 2010 | 32 | 57 | 2.0 | 10.04 | 10.57 | O | 203252.76+114437.2 | |
20329+1142 | J 1 | AB | 2015 | 33 | 57 | 2.1 | 10.04 | 10.57 | O | 203252.76+114437.2 | |
20329+1142 | J 1 | AB | 2018 | 35 | 58 | 1.9 | 10.04 | 10.57 | O | 203252.76+114437.2 |