02039+4220 STT  38BC

 
 
02H 03M 53.92S +42 19' 47.5" P.A. 127.7 SEP 0.09 MAG 5.30,6.50 SP B8V+A0V DIST. 120.48 PC (393.01 L.Y.)
 
 
Coord 2000
02039+4220
Discov num
STT  38
Comp
BC
Coord arcsec 2000
02 03 53.92 +42 19 47.5
Date first
1843
Date last
2010
Obs
379
Pa first
118
Pa last
96
P.A. Now (θ)
127.7°
Sep first
0.5
Sep last
0.2
Sep. Now (ρ)
0.09"
Mag pri
5.30
Mag sec
6.50
delta mag (ΔM)
1.2
Spectral class
B8V+A0V (blue-white/white)
Pri motion ra
+046
Sec motion ra
Pri motion dec
-055
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
02039+4220 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Gam1 And 37734 02039+4220 STF 205 A,BC 1777 2016 361 63 9.8 2.31 5.02 2.71
Show 37734 02039+4220 BAR 22 AD 1898 1898 1 245 27.9 2.31 15.00 12.69
Show 37734 02039+4220 STT 38 BC 1843 2010 379 128 0.1 5.30 6.50 1.20 Y <===
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Andromeda
SAO
37734
HIP
9640
HD
12533
HR
603
GC
2477
ADS
1630
BD
BD+41 395
Bayer
Gamma 1 Andromedae
Bayer name
Gam1 And
Flamsteed
57 Andromedae
Flamsteed name
57 And
Distance
120.48
Distance ly
393.01
last precise pa
95.7
last precise sep
0.219
 
 
ORBITAL ELEMENTS
 
 
Period (P)62.63y Periastron (T)1951.98y Semi-major axis (a)0.317a
Eccentricity (e)0.874 Inclination (i)104.8° Longitude of periastron (ω)163.4°
Node (Ω)103.2° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.476 103.5
2001 0.460 103.2
2002 0.443 102.8
2003 0.424 102.5
2004 0.404 102.0
2005 0.381 101.6
2006 0.357 101.0
2007 0.329 100.4
2008 0.300 99.7
2009 0.267 98.8
2010 0.230 97.6
2011 0.188 96.0
2012 0.139 93.3
2013 0.081 87.0
2014 0.016 27.6
2015 0.039 270.6
2016 0.028 180.7
2017 0.065 138.3
2018 0.106 128.0
2019 0.144 123.3
2020 0.179 120.6
2021 0.212 118.7
2022 0.242 117.3
2023 0.270 116.2
2024 0.297 115.3
2025 0.321 114.5
2026 0.344 113.9
2027 0.366 113.3
2028 0.386 112.8
2029 0.405 112.4
2030 0.423 111.9

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