00171+3841 CHR 123 (The And)

 
 
00h 17m 05.54s +38 40' 54.0" P.A. 135 sep 0.1 mag 4.61, Sp A2V dist. 94.7 pc (308.91 l.y.)
 
 
Coord 2000
00171+3841
Discov num
CHR 123
Comp
Coord arcsec 2000
00 17 05.54 +38 40 54.0
Date first
1986
Date last
1996
Obs
6
Pa first
142
Pa last
135
P.A. Now (θ)
135°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
4.61
Mag sec
delta mag (ΔM)
Spectral class
A2V (white)
Pri motion ra
-048
Sec motion ra
Pri motion dec
-013
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
134.9
Precise sep
0.053
Name
The And
Cdsa2 id
CHR 123
Constellation
Andromeda
SAO
53777
HIP
1366
Tycho2
2782-02251-1
HD
1280
HR
63
GC
334
BD
BD+37 34
Bayer
Theta Andromedae
Bayer name
The And
Flamsteed
24 Andromedae
Flamsteed name
24 And
Ra deg
0.2848722222222222
De deg
38.681666666666665
Distance
94.7
Distance ly
308.91
last precise pa
134.9
last precise sep
0.053
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)1006d (2.75y)± 95 Periastron (T)48621d (1991.996y)± 327 Semi-major axis (a)12m± 6
Eccentricity (e)0.62± 0.28 Inclination (i)63°± 10 Longitude of periastron (ω)70°± 96
Node (Ω)294°± 94 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1993
label rho theta
2000-01-01 0.008 275.1
2001-01-01 0.013 136.3
2002-01-01 0.009 192.5
2003-01-01 0.003 332.8
2004-01-01 0.013 146.1
2005-01-01 0.008 218.0
2006-01-01 0.008 110.3
2007-01-01 0.011 157.3
2008-01-01 0.008 246.0
2009-01-01 0.012 125.5
2010-01-01 0.010 171.6
2011-01-01 0.008 273.1
2012-01-01 0.013 135.6
2013-01-01 0.009 190.9
2014-01-01 0.003 321.2
2015-01-01 0.013 145.4
2016-01-01 0.008 216.0
2017-01-01 0.008 108.5
2018-01-01 0.012 156.5
2019-01-01 0.008 244.0
2020-01-01 0.012 124.7
2021-01-01 0.010 170.5
2022-01-01 0.008 271.2
2023-01-01 0.013 134.9
2024-01-01 0.009 189.3
2025-01-01 0.004 313.1
2026-01-01 0.013 144.7
2027-01-01 0.008 214.1
2028-01-01 0.007 106.6
2029-01-01 0.012 155.6
2030-01-01 0.008 242.1

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

grafico orbita





wds00171%2B3841r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)1033d (2.83y)± 84 Periastron (T)48587d (1991.903y)± 243 Semi-major axis (a)25m± 22
Eccentricity (e)0.95± 0.22 Inclination (i)69°± 15 Longitude of periastron (ω)89°± 102
Node (Ω)263°± 103 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1993
label rho theta
2000-01-01 0.013 207.1
2001-01-01 0.015 144.8
2002-01-01 0.017 176.0
2003-01-01 0.010 218.6
2004-01-01 0.016 151.0
2005-01-01 0.017 181.3
2006-01-01 0.005 242.7
2007-01-01 0.017 156.6
2008-01-01 0.016 186.9
2009-01-01 0.009 116.2
2010-01-01 0.017 161.8
2011-01-01 0.015 193.0
2012-01-01 0.012 130.1
2013-01-01 0.017 166.9
2014-01-01 0.014 200.1
2015-01-01 0.014 139.0
2016-01-01 0.017 171.9
2017-01-01 0.012 208.8
2018-01-01 0.015 146.0
2019-01-01 0.017 176.9
2020-01-01 0.010 221.3
2021-01-01 0.016 152.0
2022-01-01 0.017 182.2
2023-01-01 0.003 257.4
2024-01-01 0.017 157.5
2025-01-01 0.016 187.9
2026-01-01 0.010 119.4
2027-01-01 0.017 162.7
2028-01-01 0.015 194.2
2029-01-01 0.012 131.9
2030-01-01 0.017 167.8

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

grafico orbita





wds00171%2B3841s.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
00171+3841 CHR 123 1996 6 135 0.1 4.61   A2V N 001705.54+384054.0

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