09179+2834 STF3121AB (IP Cnc)

 
 
09h 17m 53.45s +28 33' 37.7" P.A. 25.8 sep 0.51 mag 7.90,8.00 Sp K0 dist. 17.27 pc (56.33 l.y.)
 
 
Coord 2000
09179+2834
Discov num
STF3121
Comp
AB
Coord arcsec 2000
09 17 53.45 +28 33 37.7
Date first
1832
Date last
2017
Obs
404
Pa first
20
Pa last
205
P.A. Now (θ)
25.8°
Sep first
0.9
Sep last
0.5
Sep. Now (ρ)
0.51"
Mag pri
7.90
Mag sec
8.00
delta mag (ΔM)
0.1
Spectral class
K0 (yellow-orange)
Pri motion ra
+053
Sec motion ra
Pri motion dec
-511
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
09179+2834 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show IP Cnc 80745 09179+2834 STF3121 AB 1832 2017 404 26 0.5 7.90 8.00 0.10 Y <===
Show 80745 09179+2834 ABT 6 AB,C 1921 2001 3 44 173.2 7.32 12.87 5.55
Show 80745 09179+2834 ABT 6 AB,D 1921 2001 4 133 165.9 7.32 11.96 4.64
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
205.1
Precise sep
0.487
Var name
IP Cnc
Cdsa2 id
STF 3121 AB
Constellation
Cancer
SAO
80745
HIP
45617
Tycho2
1957-00446-1
HD
79969
ADS
7284
GL
Gl 340A
BD
BD+29 1883
Ra deg
9.298180555555556
De deg
28.560472222222224
Distance
17.27
Distance ly
56.33
last precise pa
205.1
last precise sep
0.487
 
 
ORBITAL ELEMENTS
 
 
Period (P)34.17y Periastron (T)1981y Semi-major axis (a)0.68a
Eccentricity (e)0.32 Inclination (i)76° Longitude of periastron (ω)311°
Node (Ω)24° Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.714 193.3
2001 0.754 195.4
2002 0.783 197.3
2003 0.800 199.0
2004 0.804 200.8
2005 0.793 202.5
2006 0.766 204.4
2007 0.722 206.4
2008 0.660 208.7
2009 0.578 211.6
2010 0.476 215.6
2011 0.356 222.2
2012 0.226 236.1
2013 0.124 279.5
2014 0.171 344.1
2015 0.294 6.4
2016 0.404 15.7
2017 0.479 21.3
2018 0.514 25.8
2019 0.514 30.0
2020 0.484 34.4
2021 0.433 39.7
2022 0.370 46.7
2023 0.302 56.7
2024 0.239 72.3
2025 0.199 96.3
2026 0.201 125.3
2027 0.244 148.7
2028 0.309 163.7
2029 0.383 173.1
2030 0.457 179.5

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

grafico orbita





wds09179%2B2834a.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
09179+2834 STF3121 AB 2005 391 205 0.8 7.90 8.00 K0 NOD 091753.42+283342.3
09179+2834 STF3121 AB 2007 392 209 0.7 7.90 8.00 K0 NOD 091753.42+283342.3
09179+2834 STF3121 AB 2009 398 214 0.5 7.90 8.00 K0 NOD 091753.45+283337.7
09179+2834 STF3121 AB 2010 404 219 0.5 7.90 8.00 K0 NOD 091753.45+283337.7
09179+2834 STF3121 AB 2017 404 205 0.5 7.90 8.00 K0 NO 091753.45+283337.7

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