Mimosa

[Trevorw]

Mimosa (Beta Crucis) 15, 9 second exposures through GSO 8" RC Canon 350d no darks DSS, PS7

The second brightest star of in the constellation Crux; its relatively modern name, which comes from the Latin for "actor" (and is also a word used in botany), is of unknown origin. Mimosa is a hot giant B star and also a binary whose components are only about 8 AU apart – too close to resolve – and have an orbital period of 5 years. Mimosa is also a multiply-periodic Beta Cephei star that varies between magnitudes 1.23 and 1.31 with periods of 5.68, 3.87, and 2.91 hours.

visual magnitude 1.25 absolute magnitude -3.92 spectral type B0.5III surface temperature 27,600 K luminosity 34,000 Lsun mass 14 Msun distance 353 light-years position R.A. 12h 47m 43.2s,

Dec. -59° 41' 19"

[Deneb]

Beautiful Picture that of Mimosa, Trevor.

The diffraction spikes & the colour spectrum really stands out as well with the background of stars.

[Daz1969]

Great picture!

Daz