00206+1219 BU 1015

 
 
00H 20M 38.21S +12 18' 39.8" P.A. 109.5 SEP 0.5 MAG 8.39,9.67 SP F5 DIST. 107.41 PC (350.37 L.Y.)
 
 
Coord 2000
00206+1219
Discov num
BU 1015
Comp
Coord arcsec 2000
00 20 38.21 +12 18 39.8
Date first
1888
Date last
2008
Obs
99
Pa first
115
Pa last
104
P.A. Now (θ)
109.5°
Sep first
0.6
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
8.39
Mag sec
9.67
delta mag (ΔM)
1.28
Spectral class
F5 (yellow-white)
Pri motion ra
-027
Sec motion ra
-027
Pri motion dec
+007
Sec motion dec
+007
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Pisces
SAO
91856
HIP
1646
Tycho2
0599-00185-1
HD
1634
ADS
281
BD
BD+11 41
Distance
107.41
Distance ly
350.37
last precise pa
103.8
last precise sep
0.49
 
 
ORBITAL ELEMENTS
 
 
Period (P)137y Periastron (T)1961.65y Semi-major axis (a)0.333a
Eccentricity (e)0.557 Inclination (i)35° Longitude of periastron (ω)10°
Node (Ω)291.2° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.434 94.5
2001 0.440 95.5
2002 0.446 96.5
2003 0.452 97.5
2004 0.457 98.5
2005 0.462 99.4
2006 0.467 100.3
2007 0.471 101.2
2008 0.475 102.1
2009 0.480 103.0
2010 0.483 103.8
2011 0.487 104.7
2012 0.491 105.5
2013 0.494 106.3
2014 0.497 107.1
2015 0.499 107.9
2016 0.502 108.7
2017 0.504 109.5
2018 0.507 110.3
2019 0.508 111.1
2020 0.510 111.8
2021 0.512 112.6
2022 0.513 113.3
2023 0.514 114.1
2024 0.515 114.8
2025 0.516 115.6
2026 0.516 116.3
2027 0.516 117.1
2028 0.516 117.8
2029 0.516 118.6
2030 0.516 119.3

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic