A spatially resolved radio spectral study of the galaxy M 51

Open Access

Table 1

Basic properties of M51.

Name	M51
Alternative names	NGC 5194/5155
RA₂₀₀₀	$13_{\cdot}^{h} 29_{\cdot}^{m} 56_{\cdot}^{s} 2$ $\[13^{\mathrm{h}}_ \cdot 29^{\mathrm{m}}_ \cdot 56^{\mathrm{s}}_ \cdot 2\]$
DEC₂₀₀₀	+47°13′50″
Type	Galaxy pair (Sa + Sc)^(a)
Apparent size (D₂₅)	9′
Distance	8.58 ± 0.10 Mpc^(b)
Position angle	$12_{\cdot}^{\circ} 0^{(c)}$ $\[12^{\circ}_ \cdot 0^{(c)}\]$
Inclination angle	$- 20_{\cdot}^{\circ} 3^{(c)}$ $\[-20^{\circ}_ \cdot 3^{(c)}\]$

References. ^(a)Karachentsev et al. (1985). ^(b)McQuinn et al. (2016). ^(c)Hu et al. (2013).

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