01577+4434 A  1526

 
 
01H 57M 40.62S +44 33' 48.0" P.A. 168.4 SEP 0.11 MAG 8.70,8.80 SP A0 DIST. 220.26 PC (718.49 L.Y.)
 
 
Coord 2000
01577+4434
Discov num
A  1526
Comp
Coord arcsec 2000
01 57 40.62 +44 33 48.0
Date first
1907
Date last
1995
Obs
22
Pa first
291
Pa last
235
P.A. Now (θ)
168.4°
Sep first
0.4
Sep last
0.1
Sep. Now (ρ)
0.11"
Mag pri
8.70
Mag sec
8.80
delta mag (ΔM)
0.1
Spectral class
A0 (white)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
37641
HIP
9128
Tycho2
2828-01723-1
HD
11869
ADS
1554
BD
BD+43 401
Distance
220.26
Distance ly
718.49
last precise pa
234.6
last precise sep
0.099
 
 
ORBITAL ELEMENTS
 
 
Period (P)877.5y± 53.7 Periastron (T)1919.6y± 55.4 Semi-major axis (a)0.648a± 0.06
Eccentricity (e)0.449± 0.041 Inclination (i)100.2°± 2 Longitude of periastron (ω)187.4°± 3.2
Node (Ω)112.6°± 1.3 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1995
label rho theta
2000 0.090 223.2
2001 0.088 219.7
2002 0.087 216.2
2003 0.087 212.6
2004 0.086 209.0
2005 0.086 205.3
2006 0.087 201.7
2007 0.087 198.1
2008 0.088 194.6
2009 0.090 191.1
2010 0.091 187.8
2011 0.093 184.6
2012 0.095 181.5
2013 0.098 178.6
2014 0.100 175.8
2015 0.103 173.2
2016 0.106 170.7
2017 0.110 168.4
2018 0.113 166.2
2019 0.117 164.1
2020 0.120 162.1
2021 0.124 160.3
2022 0.128 158.6
2023 0.132 157.0
2024 0.136 155.5
2025 0.140 154.0
2026 0.144 152.7
2027 0.149 151.4
2028 0.153 150.2
2029 0.157 149.1
2030 0.162 148.0

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