01551+2847 STF 183AB

 
 
01H 55M 07.39S +28 47' 52.6" P.A. 141 SEP 0.36 MAG 7.67,10.00 SP F2 DIST. 165.84 PC (540.97 L.Y.)
 
 
Coord 2000
01551+2847
Discov num
STF 183
Comp
AB
Coord arcsec 2000
01 55 07.39 +28 47 52.6
Date first
1833
Date last
2008
Obs
129
Pa first
22
Pa last
147
P.A. Now (θ)
141°
Sep first
0.6
Sep last
0.3
Sep. Now (ρ)
0.36"
Mag pri
7.67
Mag sec
10.00
delta mag (ΔM)
2.33
Spectral class
F2 (yellow-white)
Pri motion ra
+028
Sec motion ra
+028
Pri motion dec
-035
Sec motion dec
-035
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
01551+2847 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 75020 01551+2847 STF 183 AB 1833 2008 129 141 0.4 7.67 10.00 2.33 Y <===
Show 75020 01551+2847 STF 183 AB,C 1825 2016 93 162 5.6 7.67 9.26 1.59
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Triangulum
SAO
75020
HIP
8938
Tycho2
1763-00418-1
HD
11671
ADS
1522
BD
BD+28 319
Distance
165.84
Distance ly
540.97
last precise pa
146.6
last precise sep
0.329
 
 
ORBITAL ELEMENTS
 
 
Period (P)332.79y Periastron (T)1966.42y Semi-major axis (a)0.489a
Eccentricity (e)0.523 Inclination (i)121.3° Longitude of periastron (ω)290.5°
Node (Ω)170.3° Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation1997
label rho theta
2000 0.346 156.2
2001 0.348 155.3
2002 0.350 154.4
2003 0.352 153.4
2004 0.353 152.5
2005 0.355 151.6
2006 0.356 150.7
2007 0.357 149.8
2008 0.358 148.9
2009 0.359 148.0
2010 0.359 147.1
2011 0.360 146.2
2012 0.361 145.3
2013 0.361 144.5
2014 0.361 143.6
2015 0.362 142.7
2016 0.362 141.8
2017 0.362 141.0
2018 0.362 140.1
2019 0.362 139.2
2020 0.362 138.3
2021 0.362 137.4
2022 0.361 136.6
2023 0.361 135.7
2024 0.361 134.8
2025 0.361 133.9
2026 0.360 133.1
2027 0.360 132.2
2028 0.360 131.3
2029 0.359 130.4
2030 0.359 129.5

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