16073-3645 HJ 4831

 
 
16H 07M 16.17S -36 45' 19.9" P.A. 358 SEP 40.4 MAG 5.74,11.84 SP F1IV DIST. 54.79 PC (178.72 L.Y.)
 
 
Coord 2000
16073-3645
Discov num
HJ 4831
Comp
Coord arcsec 2000
16 07 16.17 -36 45 19.9
Date first
1834
Date last
2010
Obs
11
Pa first
359
Pa last
358
P.A. Now (θ)
358°
Sep first
40.0
Sep last
40.4
Sep. Now (ρ)
40.4"
Mag pri
5.74
Mag sec
11.84
delta mag (ΔM)
6.1
Spectral class
F1IV (yellow-white)
Pri motion ra
+047
Sec motion ra
+029
Pri motion dec
-065
Sec motion dec
-038
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Lupus
SAO
207341
HIP
78970
Tycho2
7342-01314-1
HD
144415
HR
5991
CD
CD-3610648
CP
CP-36 6938
Distance
54.79
Distance ly
178.72
last precise pa
357.8
last precise sep
40.43
 
 
ORBITAL ELEMENTS
 
 
Period (P)919d (2.52y)± 40 Periastron (T)49141d (1993.419y)± 412 Semi-major axis (a)11m± 1.1
Eccentricity (e)0.09± 0.16 Inclination (i)61°± 7 Longitude of periastron (ω)113°± 73
Node (Ω)55°± 95 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1991
label rho theta
2000-01-01 0.010 38.3
2001-01-01 0.006 193.4
2002-01-01 0.006 316.3
2003-01-01 0.009 73.0
2004-01-01 0.010 243.5
2005-01-01 0.010 35.8
2006-01-01 0.006 186.3
2007-01-01 0.006 308.4
2008-01-01 0.010 70.1
2009-01-01 0.011 241.0
2010-01-01 0.010 33.1
2011-01-01 0.006 178.0
2012-01-01 0.006 300.9
2013-01-01 0.010 67.3
2014-01-01 0.011 238.6
2015-01-01 0.009 30.2
2016-01-01 0.005 168.6
2017-01-01 0.006 294.0
2018-01-01 0.010 64.8
2019-01-01 0.011 236.2
2020-01-01 0.009 27.1
2021-01-01 0.005 158.1
2022-01-01 0.007 287.7
2023-01-01 0.011 62.4
2024-01-01 0.010 233.8
2025-01-01 0.009 23.7
2026-01-01 0.005 146.9
2027-01-01 0.007 281.9
2028-01-01 0.011 60.1
2029-01-01 0.010 231.3
2030-01-01 0.008 20.0

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