00428+1249 HDS  93

 
 
00h 42m 47.92s +12 48' 41.8" P.A. 12.3 sep 0.25 mag 10.78,12.02 dist. 75.64 pc (246.74 l.y.)
 
 
Coord 2000
00428+1249
Discov num
HDS  93
Comp
Coord arcsec 2000
00 42 47.92 +12 48 41.8
Date first
1991
Date last
2015
Obs
12
Pa first
160
Pa last
29
P.A. Now (θ)
12.3°
Sep first
0.2
Sep last
0.3
Sep. Now (ρ)
0.25"
Mag pri
10.78
Mag sec
12.02
delta mag (ΔM)
1.24
Spectral class
Pri motion ra
+193
Sec motion ra
Pri motion dec
-077
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Pisces
HIP
3361
Tycho2
0610-00266-1
BD
BD+12 81
Distance
75.64
Distance ly
246.74
last precise pa
29.2
last precise sep
0.305
 
 
ORBITAL ELEMENTS
 
 
Period (P)88.72y± 0.505 Periastron (T)1995.03y± 0.566 Semi-major axis (a)0.3023a± 0.0021
Eccentricity (e)0.138± 0.003 Inclination (i)143.4°± 0.5 Longitude of periastron (ω)263.9°± 2
Node (Ω)32.7°± 0.7 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.219 97.7
2001 0.224 91.7
2002 0.230 85.9
2003 0.236 80.5
2004 0.242 75.3
2005 0.249 70.4
2006 0.256 65.8
2007 0.262 61.4
2008 0.269 57.2
2009 0.275 53.2
2010 0.280 49.4
2011 0.286 45.7
2012 0.290 42.1
2013 0.295 38.7
2014 0.298 35.4
2015 0.302 32.1
2016 0.304 28.9
2017 0.306 25.7
2018 0.308 22.6
2019 0.309 19.5
2020 0.309 16.4
2021 0.309 13.3
2022 0.309 10.2
2023 0.308 7.1
2024 0.307 4.0
2025 0.305 0.8
2026 0.304 357.6
2027 0.302 354.4
2028 0.299 351.2
2029 0.297 347.8
2030 0.295 344.5

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
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00428+1249 HDS 93 1999 4 99 0.2 10.78 12.02 D 004247.92+124841.8
00428+1249 HDS 93 2004 5 71 0.2 10.78 12.02 D 004247.92+124841.8
00428+1249 HDS 93 2007 6 61 0.3 10.78 12.02 D 004247.92+124841.8
00428+1249 HDS 93 2009 8 51 0.3 10.78 12.02 OD 004247.92+124841.8
00428+1249 HDS 93 2015 9 29 0.3 10.78 12.02 O 004247.92+124841.8

If you need more information about this double, apply for a data request form to the WDS.