01500+7456 MLR 297AC

 
 
01h 50m 01.17s +74 56' 00.1" P.A. 262.60 sep 0.2 mag 10.01,10.72 dist. 92.59 pc (302.03 l.y.)
 
 
Coord 2000
01500+7456
Discov num
MLR 297
Comp
AC
Coord arcsec 2000
01 50 01.17 +74 56 00.1
Date first
1971
Date last
2018
Obs
9
Pa first
139
Pa last
259
P.A. Now (θ)
262.6°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.18"
Mag pri
10.01
Mag sec
10.72
delta mag (ΔM)
0.71
Spectral class
Pri motion ra
+194
Sec motion ra
Pri motion dec
-036
Sec motion dec
Notes
O (Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
01500+7456 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 01500+7456 BAG 16 AB 1999 2018 7 118 0.1 10.00 10.20 0.20
Show 01500+7456 MLR 297 AC 1971 2018 9 263 0.2 10.01 10.72 0.71 Y <===
Show 01500+7456 BAG 16 BC 1999 1999 1 175 0.2 10.20 10.72 0.52
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
258.9
Precise sep
0.166
Constellation
Cassiopeia
HIP
8533
Tycho2
4322-00209-1
Gaia DR2
6169391616
Distance
92.59
Distance ly
302.03
last precise pa
258.9
last precise sep
0.166
 
 
ORBITAL ELEMENTS
 
 
Period (P)197.5y Periastron (T)1961.5y Semi-major axis (a)0.429a
Eccentricity (e)0 Inclination (i)72.3° Longitude of periastron (ω)
Node (Ω)128.1° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.190 168.2
2001 0.182 171.2
2002 0.173 174.4
2003 0.165 178.0
2004 0.158 181.9
2005 0.151 186.2
2006 0.145 190.9
2007 0.140 195.9
2008 0.136 201.3
2009 0.133 207.0
2010 0.131 212.9
2011 0.130 218.8
2012 0.131 224.8
2013 0.133 230.7
2014 0.137 236.3
2015 0.141 241.6
2016 0.146 246.5
2017 0.153 251.1
2018 0.160 255.3
2019 0.167 259.1
2020 0.175 262.6
2021 0.184 265.8
2022 0.193 268.7
2023 0.202 271.3
2024 0.211 273.7
2025 0.220 275.9
2026 0.230 277.9
2027 0.239 279.7
2028 0.249 281.5
2029 0.258 283.0
2030 0.268 284.5

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






wds01500%2B7456a.png orbit plot
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
01500+7456 MLR 297 AC 2000 4 178 0.2 10.01 10.72 D 015001.17+745600.1
01500+7456 MLR 297 AC 2007 5 205 0.1 10.01 10.72 D 015001.17+745600.1
01500+7456 MLR 297 AC 2018 9 259 0.2 10.01 10.72 O 015001.17+745600.1

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