00084+2905 MKT  11Aa,Ab

 
 
00H 08M 23.17S +29 05' 27.0" P.A. 241 MAG 2.22,4.21 SP B8IVP DIST. 29.74 PC (97.01 L.Y.)
 
 
Coord 2000
00084+2905
Discov num
MKT  11
Comp
Aa,Ab
Coord arcsec 2000
00 08 23.17 +29 05 27.0
Date first
1988
Date last
1989
Obs
42
Pa first
257
Pa last
241
P.A. Now (θ)
241°
Sep first
0
Sep last
0
Sep. Now (ρ)
0"
Mag pri
2.22
Mag sec
4.21
delta mag (ΔM)
1.99
Spectral class
B8IVp (blue-white)
Pri motion ra
+136
Sec motion ra
Pri motion dec
-163
Sec motion dec
Notes
N O (See Notes, Orbital solution)
 
 
00084+2905 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 73765 00084+2905 MKT 11 Aa,Ab 1988 1989 42 241 0.0 2.22 4.21 1.99 Y <===
Show Sirrah 73765 00084+2905 H 5 32 AB 1781 2011 47 285 90.8 2.22 11.11 8.89
Show 73765 00084+2905 JNN 1 AC 2008 2009 2 5 6.7 2.29 19.60 17.31
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
73765
HIP
677
HD
358
HR
15
GC
127
ADS
94
BD
BD+28 4
Bayer
Alpha Andromedae
Bayer name
Alp And
Flamsteed
21 Andromedae
Flamsteed name
21 And
Distance
29.74
Distance ly
97.01
last precise pa
241
last precise sep
0.014
 
 
ORBITAL ELEMENTS
 
 
Period (P)96.7015d± 0.0044 Periastron (T)47374.563d (1988.583y)± 0.095 Semi-major axis (a)24m± 0.13
Eccentricity (e)0.535± 0.0046 Inclination (i)105.6°± 0.23 Longitude of periastron (ω)257.4°± 0.31
Node (Ω)284.4°± 0.21 Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000-01-01 0.020 283.2
2001-01-01 0.017 109.9
2002-01-01 0.011 156.9
2003-01-01 0.015 245.9
2004-01-01 0.024 273.3
2005-01-01 0.003 24.1
2006-01-01 0.016 127.9
2007-01-01 0.010 211.2
2008-01-01 0.021 263.1
2009-01-01 0.020 284.0
2010-01-01 0.018 111.0
2011-01-01 0.011 159.7
2012-01-01 0.015 247.3
2013-01-01 0.024 273.8
2014-01-01 0.004 53.6
2015-01-01 0.016 129.2
2016-01-01 0.010 214.3
2017-01-01 0.021 263.9
2018-01-01 0.019 284.9
2019-01-01 0.018 112.0
2020-01-01 0.011 162.5
2021-01-01 0.016 248.7
2022-01-01 0.024 274.4
2023-01-01 0.005 70.9
2024-01-01 0.015 130.6
2025-01-01 0.011 217.3
2026-01-01 0.021 264.6
2027-01-01 0.018 285.8
2028-01-01 0.018 113.0
2029-01-01 0.010 165.5
2030-01-01 0.016 250.0

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

grafico orbita





grafico misure orbit6