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Size: 22
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Size: 2010
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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=== Orbital Elements === ||<rowstyle="background-color: #E0E0FF;"> Parameter || [[http://adsabs.harvard.edu/abs/2012Natur.481...51G|Gillessen et al. 2012a]] || [[http://adsabs.harvard.edu/abs/2012arXiv1209.2272G|Gillessen et al. 2012b]] || ||semi major axis (mas)|| 521 ± 28 ||666 ± 39|| ||eccentricity|| 0.9384 ± 0.0066 ||0.9664 ± 0.0026|| ||inclination [°]|| 106.55 ± 0.88|| 109.48 ± 0.81|| ||position angle of ascending node [°]|| 101.5 ± 1.1|| 95.8 ± 1.1|| ||longitude of periastron [°]|| 109.59 ± 0.78|| 108.50 ± 0.74|| ||epoch of periastron [yr]|| 2013.51 ± 0.04|| 2013.69 ± 0.04|| ||orbital period [yr]|| 137 ± 11 ||198 ± 18|| === Astrometry & Radial Velocities === ||<rowstyle="background-color: #E0E0FF;"> Epoch || R.A. || Dec || error estimate || ||2002.6 || 0.2771 || -0.155712 || 0.002 || ||2003.4 || 0.276067 || -0.140544 || 0.002 || ||2004.6 || 0.263562 || -0.130565 || 0.002 || ||2005.4 || 0.264142 || -0.123733 || 0.002 || ||2006.4 || 0.240084 || -0.109394 || 0.002 || ||2007.3 || 0.225361 || -0.102138 || 0.002 || ||2008.5 || 0.209801 || -0.0879578 || 0.002 || ||2009.25 || 0.193148 || -0.0740471 || 0.002 || ||2010.5 || 0.158347 || -0.0540539 || 0.002 || ||2011.3 || 0.139725 || -0.0393364 || 0.002 || ||2011.5 || 0.134431 || -0.0376276 || 0.002 || ||2012.2 || 0.113924 || -0.0374186 || 0.005 || ||2012.2126 || 0.122807 || -0.0228154 || 0.005 || ||2012.4942 || 0.10694 || -0.0138847 || 0.005 || ; velocity data date v delta v 2003.2711 990. 50. 2004.5356 1052. 30. 2005.2153 1010. 50. 2008.2624 1256. 20. 2009.3851 1404. 30. 2010.3539 1522. 25. 2011.3169 1692. 60. 2011.5665 1640. 60. 2012.2126 1934. 50. 2012.3612 1930. 50. 2012.4942 2030. 50. |
Plots and Data
Orbital Elements
Parameter |
||
semi major axis (mas) |
521 ± 28 |
666 ± 39 |
eccentricity |
0.9384 ± 0.0066 |
0.9664 ± 0.0026 |
inclination [°] |
106.55 ± 0.88 |
109.48 ± 0.81 |
position angle of ascending node [°] |
101.5 ± 1.1 |
95.8 ± 1.1 |
longitude of periastron [°] |
109.59 ± 0.78 |
108.50 ± 0.74 |
epoch of periastron [yr] |
2013.51 ± 0.04 |
2013.69 ± 0.04 |
orbital period [yr] |
137 ± 11 |
198 ± 18 |
Astrometry & Radial Velocities
Epoch |
R.A. |
Dec |
error estimate |
2002.6 |
0.2771 |
-0.155712 |
0.002 |
2003.4 |
0.276067 |
-0.140544 |
0.002 |
2004.6 |
0.263562 |
-0.130565 |
0.002 |
2005.4 |
0.264142 |
-0.123733 |
0.002 |
2006.4 |
0.240084 |
-0.109394 |
0.002 |
2007.3 |
0.225361 |
-0.102138 |
0.002 |
2008.5 |
0.209801 |
-0.0879578 |
0.002 |
2009.25 |
0.193148 |
-0.0740471 |
0.002 |
2010.5 |
0.158347 |
-0.0540539 |
0.002 |
2011.3 |
0.139725 |
-0.0393364 |
0.002 |
2011.5 |
0.134431 |
-0.0376276 |
0.002 |
2012.2 |
0.113924 |
-0.0374186 |
0.005 |
2012.2126 |
0.122807 |
-0.0228154 |
0.005 |
2012.4942 |
0.10694 |
-0.0138847 |
0.005 |
; velocity data date v delta v 2003.2711 990. 50. 2004.5356 1052. 30. 2005.2153 1010. 50. 2008.2624 1256. 20. 2009.3851 1404. 30. 2010.3539 1522. 25. 2011.3169 1692. 60. 2011.5665 1640. 60. 2012.2126 1934. 50. 2012.3612 1930. 50. 2012.4942 2030. 50.