11105-3732 REP  21

 
 
11h 10m 27.89s -37 31' 51.9" P.A. 207 sep 1.6 mag 12.06, Sp M3
 
 
Coord 2000
11105-3732
Discov num
REP  21
Comp
Coord arcsec 2000
11 10 27.89 -37 31 51.9
Date first
1989
Date last
2015
Obs
9
Pa first
230
Pa last
207
P.A. Now (θ)
207°
Sep first
1.4
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
12.06
Mag sec
delta mag (ΔM)
Spectral class
M3 (red)
Pri motion ra
-100
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Centaurus
last precise pa
207.1
last precise sep
1.551
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)785.76y Periastron (T)2321.3y Semi-major axis (a)2.321a
Eccentricity (e)0.1694 Inclination (i)120.67° Longitude of periastron (ω)260.46°
Node (Ω)331.95° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 1.475 215.3
2001 1.479 214.7
2002 1.484 214.1
2003 1.489 213.6
2004 1.493 213.0
2005 1.498 212.5
2006 1.503 211.9
2007 1.508 211.4
2008 1.513 210.8
2009 1.518 210.3
2010 1.523 209.8
2011 1.528 209.2
2012 1.533 208.7
2013 1.539 208.2
2014 1.544 207.6
2015 1.550 207.1
2016 1.555 206.6
2017 1.561 206.1
2018 1.566 205.6
2019 1.572 205.1
2020 1.578 204.6
2021 1.584 204.1
2022 1.589 203.6
2023 1.595 203.1
2024 1.601 202.6
2025 1.607 202.1
2026 1.613 201.7
2027 1.619 201.2
2028 1.625 200.7
2029 1.631 200.2
2030 1.638 199.8

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
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)699.96y Periastron (T)1707y Semi-major axis (a)2.16a
Eccentricity (e)0.249 Inclination (i)122.3° Longitude of periastron (ω)298.97°
Node (Ω)324.51° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 1.476 215.3
2001 1.481 214.7
2002 1.485 214.1
2003 1.490 213.6
2004 1.494 213.0
2005 1.499 212.5
2006 1.504 211.9
2007 1.509 211.4
2008 1.514 210.8
2009 1.519 210.3
2010 1.524 209.7
2011 1.529 209.2
2012 1.535 208.7
2013 1.540 208.1
2014 1.545 207.6
2015 1.551 207.1
2016 1.556 206.6
2017 1.562 206.1
2018 1.567 205.6
2019 1.573 205.1
2020 1.579 204.6
2021 1.585 204.1
2022 1.590 203.6
2023 1.596 203.1
2024 1.602 202.6
2025 1.608 202.1
2026 1.614 201.6
2027 1.620 201.2
2028 1.627 200.7
2029 1.633 200.2
2030 1.639 199.8

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
 
 
ORBITAL ELEMENTS SOLUTION #3
 
 
Period (P)766.13y Periastron (T)1761.2y Semi-major axis (a)2.291a
Eccentricity (e)0.3215 Inclination (i)122.11° Longitude of periastron (ω)135.74°
Node (Ω)137.13° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 1.476 215.3
2001 1.480 214.7
2002 1.484 214.1
2003 1.489 213.6
2004 1.494 213.0
2005 1.498 212.5
2006 1.503 211.9
2007 1.508 211.4
2008 1.513 210.8
2009 1.518 210.3
2010 1.523 209.7
2011 1.529 209.2
2012 1.534 208.7
2013 1.539 208.2
2014 1.545 207.6
2015 1.550 207.1
2016 1.556 206.6
2017 1.561 206.1
2018 1.567 205.6
2019 1.573 205.1
2020 1.579 204.6
2021 1.585 204.1
2022 1.591 203.6
2023 1.597 203.1
2024 1.603 202.6
2025 1.609 202.1
2026 1.615 201.7
2027 1.621 201.2
2028 1.628 200.7
2029 1.634 200.2
2030 1.640 199.8

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
 
 
ORBITAL ELEMENTS SOLUTION #4
 
 
Period (P)671.73y Periastron (T)1805y Semi-major axis (a)2.1a
Eccentricity (e)0.3976 Inclination (i)124.91° Longitude of periastron (ω)133.43°
Node (Ω)133.24° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 1.475 215.3
2001 1.480 214.7
2002 1.484 214.2
2003 1.489 213.6
2004 1.493 213.0
2005 1.498 212.5
2006 1.503 211.9
2007 1.508 211.4
2008 1.513 210.8
2009 1.518 210.3
2010 1.523 209.8
2011 1.528 209.2
2012 1.534 208.7
2013 1.539 208.2
2014 1.544 207.7
2015 1.550 207.1
2016 1.555 206.6
2017 1.561 206.1
2018 1.566 205.6
2019 1.572 205.1
2020 1.577 204.6
2021 1.583 204.1
2022 1.589 203.6
2023 1.595 203.1
2024 1.601 202.6
2025 1.607 202.1
2026 1.613 201.7
2027 1.619 201.2
2028 1.625 200.7
2029 1.631 200.2
2030 1.637 199.8

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
 
 
ORBITAL ELEMENTS SOLUTION #5
 
 
Period (P)685.21y Periastron (T)1835.6y Semi-major axis (a)2.119a
Eccentricity (e)0.4671 Inclination (i)126.52° Longitude of periastron (ω)135.42°
Node (Ω)126.39° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 1.475 215.3
2001 1.480 214.7
2002 1.484 214.2
2003 1.489 213.6
2004 1.494 213.0
2005 1.498 212.5
2006 1.503 211.9
2007 1.508 211.4
2008 1.513 210.8
2009 1.518 210.3
2010 1.523 209.8
2011 1.529 209.2
2012 1.534 208.7
2013 1.539 208.2
2014 1.544 207.7
2015 1.550 207.1
2016 1.555 206.6
2017 1.561 206.1
2018 1.566 205.6
2019 1.572 205.1
2020 1.577 204.6
2021 1.583 204.1
2022 1.589 203.6
2023 1.595 203.1
2024 1.600 202.6
2025 1.606 202.1
2026 1.612 201.7
2027 1.618 201.2
2028 1.624 200.7
2029 1.630 200.3
2030 1.636 199.8

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
 
 
ORBITAL ELEMENTS SOLUTION #6
 
 
Period (P)748.55y Periastron (T)1868.4y Semi-major axis (a)2.245a
Eccentricity (e)0.5602 Inclination (i)128.22° Longitude of periastron (ω)135°
Node (Ω)114.51° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 1.476 215.2
2001 1.481 214.7
2002 1.485 214.1
2003 1.490 213.5
2004 1.495 213.0
2005 1.500 212.4
2006 1.504 211.9
2007 1.509 211.3
2008 1.514 210.8
2009 1.519 210.3
2010 1.524 209.7
2011 1.530 209.2
2012 1.535 208.7
2013 1.540 208.1
2014 1.545 207.6
2015 1.550 207.1
2016 1.556 206.6
2017 1.561 206.1
2018 1.567 205.6
2019 1.572 205.1
2020 1.578 204.5
2021 1.583 204.1
2022 1.589 203.6
2023 1.595 203.1
2024 1.600 202.6
2025 1.606 202.1
2026 1.612 201.6
2027 1.618 201.1
2028 1.624 200.7
2029 1.630 200.2
2030 1.636 199.7

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
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11105-3732 REP 21 2003 4 213 1.5 12.06   M3 D 111028.08-373151.9
11105-3732 REP 21 2010 5 209 1.5 12.06   M3 N D 111028.08-373151.9
11105-3732 REP 21 2015 8 207 1.6 12.06   M3 NV 111028.08-373151.9

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