04179-3348 HMM   2Aa1,2

 
 
04H 17M 53.62S -33 47' 54.0" P.A. 33 MAG 4.60,4.65 SP B9V DIST. 54.56 PC (177.97 L.Y.)
 
 
Coord 2000
04179-3348
Discov num
HMM   2
Comp
Aa1,2
Coord arcsec 2000
04 17 53.62 -33 47 54.0
Date first
2012
Date last
2014
Obs
10
Pa first
313
Pa last
33
P.A. Now (θ)
33°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
4.60
Mag sec
4.65
delta mag (ΔM)
0.05
Spectral class
B9V (blue-white)
Pri motion ra
+070
Sec motion ra
Pri motion dec
-034
Sec motion dec
Notes
N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
This double is physical.
 
 
04179-3348 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 194902 04179-3348 HMM 2 Aa1,2 2012 2014 10 33 0.0 4.60 4.65 0.05 Y <===
Show 194902 04179-3348 I 270 Aa,Ab 1898 1933 6 343 0.1 3.56 4.00 0.44
Show Ups4 Eri 194902 04179-3348 HUB 3 AB 1999 1999 1 163 5.3 3.87 9.90 6.03
Show 194902 04179-3348 HJ 3636 AC 1836 1998 3 8 49.0 3.87 11.80 7.93
Quintuple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
SAO
194902
HIP
20042
HD
27376
HR
1347
GC
5201
CD
CD-34 1614
CP
CP-34 466
Bayer
Upsilon 4 Eridani
Bayer name
Ups4 Eri
Flamsteed
41 Eridani
Flamsteed name
41 Eri
Distance
54.56
Distance ly
177.97
last precise pa
33.1
last precise sep
0.002
 
 
ORBITAL ELEMENTS
 
 
Period (P)120.2478h± 0.000019 Periastron (T)54407.7214d (2007.839y)± 0.002 Semi-major axis (a)1.902m± 0.006
Eccentricity (e)0 Inclination (i)146.2°± 0.1 Longitude of periastron (ω)90°
Node (Ω)72°± 0.4 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.002 139.3
2001 0.002 182.8
2002 0.002 221.2
2003 0.002 252.9
2004 0.002 284.8
2005 0.002 323.6
2006 0.002 7.2
2007 0.002 44.6
2008 0.002 76.0
2009 0.002 108.4
2010 0.002 148.1
2011 0.002 191.4
2012 0.002 228.0
2013 0.002 259.2
2014 0.002 292.1
2015 0.002 332.5
2016 0.002 15.6
2017 0.002 51.4
2018 0.002 82.3
2019 0.002 115.8
2020 0.002 157.1
2021 0.002 199.6
2022 0.002 234.6
2023 0.002 265.5
2024 0.002 299.7
2025 0.002 341.6
2026 0.002 23.6
2027 0.002 57.9
2028 0.002 88.8
2029 0.002 123.6
2030 0.002 166.1

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