The position of SN 1987A | Astronomy & Astrophysics (A&A)

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Table 4

Estimated position of SN 1987A at epoch J2016.

Method	Right ascension	ICRS J2016 Declination	$ρ_{Declination}^{Right ascension}$ $\[\rho_{\text {Declination }}^{\text {Right ascension}}\]$
Early ejecta	$5^{h} 35^{m} 27_{\cdot}^{s} 9899 (14)$ $\[5^{\mathrm{h}} 35^{\mathrm{m}} 27^{\mathrm{s}}_\cdot9899(14)\]$	$- 69^{\circ} 16^{'} 11_{\cdot}^{''} 1202 (44)$ $\[-69^{\circ} 16^{\prime} 11^{\prime \prime}_\cdot 1202(44)\]$	0.82
Hot spot ellipse	$5^{h} 35^{m} 27_{\cdot}^{s} 9875 (9)$ $\[5^{\mathrm{h}} 35^{\mathrm{m}} 27^\mathrm{s}_\cdot9875(9)\]$	$- 69^{\circ} 16^{'} 11_{\cdot}^{''} 1037 (46)$ $\[-69^{\circ} 16^{\prime} 11^{\prime \prime}_\cdot 1037(46)\]$	0.72
Diffuse ring	$5^{h} 35^{m} 27_{\cdot}^{s} 9869 (15)$ $\[5^{\mathrm{h}} 35^{\mathrm{m}} 27^\mathrm{s}_\cdot9869(15)\]$	$- 69^{\circ} 16^{'} 11_{\cdot}^{''} 1066 (35)$ $\[-69^{\circ} 16^{\prime} 11^{\prime \prime}_\cdot 1066(35)\]$	−0.12
Final position^a	$5^{h} 35^{m} 27_{\cdot}^{s} 9884 (30)$ $\[5^{\mathrm{h}} 35^{\mathrm{m}} 27^\mathrm{s}_\cdot9884(30)\]$	$- 69^{\circ} 16^{'} 11_{\cdot}^{''} 1134 (136)$ $\[-69^{\circ} 16^{\prime} 11^{\prime \prime}_\cdot 1134(136)\]$	0.00

Notes. ^(a)Average of diffuse ring and early ejecta position.

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