00335+4006 HO 3 (HD 2993)

 
 
00h 33m 29.97s +40 06' 20.2" P.A. 141.00 sep 0.4 mag 8.09,9.72 Sp F8 dist. 57.05 pc (186.1 l.y.)
 
 
Coord 2000 00335+4006 Discov num HO    3 Comp Coord arcsec 2000 00 33 29.97 +40 06 20.2
Date first 1885 Date last 2016 Obs 24
Pa first 121 Pa last 141.1 P.A. Now (θ) 141.1°
Sep first 0.5 Sep last 0.399 Sep. Now (ρ) 0.399"
Mag pri 8.09 Mag sec 9.72 delta mag (ΔM) 1.63 Spectral class F8 (yellow-white)
Pri motion ra -004 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 2993 Constellation Andromeda SAO 53983 HIP 2643
Tycho2 2788-00743-1 Gaia DR2 380693875209029504 HD 2993 ADS 463
BD BD+39 115 Distance 57.05 Distance ly 186.1
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
 
 
SUSPECTED ORBITAL ELEMENTS SOLUTION #1
 
 
Identifier00335+4006
coord_arcsec_2000003329.97+400620.2
Period (P)0.27595y± 0.00002 Periastron (T)1997.162y± 0.0012 Semi-major axis (a)
Eccentricity (e)0.1986± 0.0073 Inclination (i)° Longitude of periastron (ω)113.4°± 1.7
Node (Ω)° Notesn ReferenceTok2017a
Equinox2000 Last observation Grade7(1=Definitive, 9=Indet.)
Not enought orbital data to create a graph.
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
 
 
SUSPECTED ORBITAL ELEMENTS SOLUTION #2
 
 
Identifier00335+4006 HO 3 Aa,Ab
coord_arcsec_2000003329.97+400620.2
Period (P)4.849y± 0.02 Periastron (T)1994.927y± 0.01 Semi-major axis (a)0.058a
Eccentricity (e)0.138± 0.028 Inclination (i)94°± 8.2 Longitude of periastron (ω)132.3°± 7.67
Node (Ω)100.7°± 7.9 Notesn ReferenceTok2017a
Equinox2000 Last observation Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 282.6 0.045
2001 274.1 0.031
2002 107.4 0.034
2003 100.8 0.063
2004 87.8 0.016
2005 281.5 0.050
2006 270.3 0.022
2007 105.5 0.042
2008 100.1 0.061
2009 51.3 0.005
2010 280.5 0.052
2011 260.8 0.013
2012 104.3 0.049
2013 99.3 0.057
2014 300.9 0.010
2015 279.5 0.052
2016 210.1 0.005
2017 103.3 0.055
2018 98.4 0.051
2019 289.1 0.022
2020 278.5 0.048
2021 127.7 0.010
2022 102.5 0.059
2023 97.3 0.043
2024 285.4 0.032
2025 277.3 0.043
2026 113.8 0.019
2027 101.8 0.062
2028 95.5 0.034
2029 283.5 0.041
2030 275.6 0.036


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



 
 


wds00335%2B4006e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
 
 
SUSPECTED ORBITAL ELEMENTS SOLUTION #3
 
 
Identifier00335+4006 HO 3 AB
coord_arcsec_2000003329.97+400620.2
Period (P)70.34y± 1.36 Periastron (T)1983.62y± 0.6 Semi-major axis (a)0.393a± 0.02
Eccentricity (e)0.331± 0.032 Inclination (i)112.3°± 0.9 Longitude of periastron (ω)137.8°± 2.7
Node (Ω)118.9°± 0.5 Notesn ReferenceTok2017a
Equinox2000 Last observation2012 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 237.3 0.178
2001 228.0 0.172
2002 218.2 0.169
2003 208.4 0.171
2004 199.0 0.177
2005 190.3 0.186
2006 182.6 0.198
2007 175.9 0.212
2008 170.0 0.228
2009 164.9 0.245
2010 160.5 0.263
2011 156.7 0.281
2012 153.3 0.299
2013 150.4 0.317
2014 147.7 0.335
2015 145.3 0.352
2016 143.1 0.368
2017 141.1 0.384
2018 139.3 0.399
2019 137.5 0.413
2020 135.9 0.425
2021 134.4 0.437
2022 133.0 0.447
2023 131.6 0.457
2024 130.2 0.465
2025 128.9 0.471
2026 127.7 0.476
2027 126.4 0.479
2028 125.2 0.481
2029 124.0 0.481
2030 122.8 0.480


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



 
 


wds00335%2B4006d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic